CVE-2020-24588

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets.

The kernel packages contain the Linux kernel, the core of any Linux operating system.

Security Fix(es):

• kernel: out-of-bounds reads in pinctrl subsystem (CVE-2020-0427)
• kernel: Improper input validation in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24502)
• kernel: Insufficient access control in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24503)
• kernel: Uncontrolled resource consumption in some Intel(R) Ethernet E810 Adapter drivers (CVE-2020-24504)
• kernel: Fragmentation cache not cleared on reconnection (CVE-2020-24586)
• kernel: Reassembling fragments encrypted under different keys (CVE-2020-24587)
• kernel: wifi frame payload being parsed incorrectly as an L2 frame (CVE-2020-24588)
• kernel: Forwarding EAPOL from unauthenticated wifi client (CVE-2020-26139)
• kernel: accepting plaintext data frames in protected networks (CVE-2020-26140)
• kernel: not verifying TKIP MIC of fragmented frames (CVE-2020-26141)
• kernel: accepting fragmented plaintext frames in protected networks (CVE-2020-26143)
• kernel: accepting unencrypted A-MSDU frames that start with RFC1042 header (CVE-2020-26144)
• kernel: accepting plaintext broadcast fragments as full frames (CVE-2020-26145)
• kernel: powerpc: RTAS calls can be used to compromise kernel integrity (CVE-2020-27777)
• kernel: locking inconsistency in tty_io.c and tty_jobctrl.c can lead to a read-after-free (CVE-2020-29660)
• kernel: buffer overflow in mwifiex_cmd_802_11_ad_hoc_start function via a long SSID value (CVE-2020-36158)
• kernel: slab out-of-bounds read in hci_extended_inquiry_result_evt() (CVE-2020-36386)
• kernel: Improper access control in BlueZ may allow information disclosure vulnerability. (CVE-2021-0129)
• kernel: Use-after-free in ndb_queue_rq() in drivers/block/nbd.c (CVE-2021-3348)
• kernel: Linux kernel eBPF RINGBUF map oversized allocation (CVE-2021-3489)
• kernel: double free in bluetooth subsystem when the HCI device initialization fails (CVE-2021-3564)
• kernel: use-after-free in function hci_sock_bound_ioctl() (CVE-2021-3573)
• kernel: eBPF 32-bit source register truncation on div/mod (CVE-2021-3600)
• kernel: DoS in rb_per_cpu_empty() (CVE-2021-3679)
• kernel: Mounting overlayfs inside an unprivileged user namespace can reveal files (CVE-2021-3732)
• kernel: heap overflow in __cgroup_bpf_run_filter_getsockopt() (CVE-2021-20194)
• kernel: Race condition in sctp_destroy_sock list_del (CVE-2021-23133)
• kernel: fuse: stall on CPU can occur because a retry loop continually finds the same bad inode (CVE-2021-28950)
• kernel: System crash in intel_pmu_drain_pebs_nhm in arch/x86/events/intel/ds.c (CVE-2021-28971)
• kernel: protection can be bypassed to leak content of kernel memory (CVE-2021-29155)
• kernel: improper input validation in tipc_nl_retrieve_key function in net/tipc/node.c (CVE-2021-29646)
• kernel: lack a full memory barrier may lead to DoS (CVE-2021-29650)
• kernel: local escalation of privileges in handling of eBPF programs (CVE-2021-31440)
• kernel: protection of stack pointer against speculative pointer arithmetic can be bypassed to leak content of kernel memory (CVE-2021-31829)
• kernel: out-of-bounds reads and writes due to enforcing incorrect limits for pointer arithmetic operations by BPF verifier (CVE-2021-33200)
• kernel: reassembling encrypted fragments with non-consecutive packet numbers (CVE-2020-26146)
• kernel: reassembling mixed encrypted/plaintext fragments (CVE-2020-26147)
• kernel: the copy-on-write implementation can grant unintended write access because of a race condition in a THP mapcount check (CVE-2020-29368)
• kernel: flowtable list del corruption with kernel BUG at lib/list_debug.c:50 (CVE-2021-3635)
• kernel: NULL pointer dereference in llsec_key_alloc() in net/mac802154/llsec.c (CVE-2021-3659)
• kernel: setsockopt System Call Untrusted Pointer Dereference Information Disclosure (CVE-2021-20239)
• kernel: out of bounds array access in drivers/md/dm-ioctl.c (CVE-2021-31916)

• cgroup: Use open-time cgroup namespace for process migration perm checks {CVE-2021-4197}
• cgroup: Use open-time credentials for process migraton perm checks {CVE-2021-4197}
• cgroup: cgroup.{procs,threads} factor out common parts
• cgroup: unify attach permission checking
• vt: drop old FONT ioctls {CVE-2021-33656}
• fbmem: Check virtual screen sizes in fb_set_var() {CVE-2021-33655}
• fbcon: Prevent that screen size is smaller than font size {CVE-2021-33655}
• fbcon: Disallow setting font bigger than screen size {CVE-2021-33655}
• KVM: nVMX: add missing consistency checks for CR0 and CR4 {CVE-2023-30456}
• net: usb: ax88179_178a: Fix packet receiving {CVE-2022-2964}
• net: usb: ax88179_178a: Fix out-of-bounds accesses in RX fixup {CVE-2022-2964}
• net: usb: ax88179_178a: fix packet alignment padding {CVE-2022-2964}
• ax88179_178a: Merge memcpy + le32_to_cpus to get_unaligned_le32
• KVM: x86/mmu: do compare-and-exchange of gPTE via the user address {CVE-2022-1158}
• RDMA/cma: Do not change route.addr.src_addr.ss_family {CVE-2021-4028}
• RDMA/cma: Make the locking for automatic state transition more clear
• ath10k: Validate first subframe of A-MSDU before processing the list {CVE-2020-24588}
• ath10k: drop MPDU which has discard flag set by firmware for SDIO {CVE-2020-24588}
• mac80211: drop A-MSDUs on old ciphers {CVE-2020-24588}
• cfg80211: mitigate A-MSDU aggregation attacks {CVE-2020-24588}
• ipv4: make exception cache less predictible {CVE-2021-20322}
• ipv4: use siphash instead of Jenkins in fnhe_hashfun() {CVE-2021-20322}
• ipv6: make exception cache less predictible {CVE-2021-20322}
• ipv6: use siphash in rt6_exception_hash() {CVE-2021-20322}
• ipv6: use jhash2() in rt6_exception_hash()
• psi: Fix uaf issue when psi trigger is destroyed while being polled {CVE-2022-2938}
• psi: fix possible trigger missing in the window
• cgroup: Allocate cgroup_file_ctx for kernfs_open_file->priv
• cgroup: make per-cgroup pressure stall tracking configurable
• netfilter: nf_tables_offload: incorrect flow offload action array size {CVE-2022-25636}
• netfilter: nftables_offload: KASAN slab-out-of-bounds Read in nft_flow_rule_create
• cgroup: fix psi monitor for root cgroup
• cgroup/cgroup.c: replace 'of->kn->priv' with of_cft()
• Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm {CVE-2022-42896}
• Bluetooth: L2CAP: Fix accepting connection request for invalid SPSM {CVE-2022-42896}
• devlink: Fix use-after-free after a failed reload {CVE-2022-3625}
• KVM: VMX: Execute IBPB on emulated VM-exit when guest has IBRS {CVE-2022-2196}
• net/sched: tcindex: update imperfect hash filters respecting rcu {CVE-2023-1281}
• seq_buf: Fix overflow in seq_buf_putmem_hex() {CVE-2023-28772}
• wifi: brcmfmac: slab-out-of-bounds read in brcmf_get_assoc_ies() {CVE-2023-1380}
• kvm: initialize all of the kvm_debugregs structure before sending it to userspace {CVE-2023-1513}
• Bluetooth: btsdio: fix use after free bug in btsdio_remove due to unfinished work {CVE-2023-1989}
• net: sched: sch_qfq: prevent slab-out-of-bounds in qfq_activate_agg {CVE-2023-31436}
• cgroup-v1: Require capabilities to set release_agent {CVE-2022-0492}
• net: sched: fix use-after-free in tc_new_tfilter() {CVE-2022-1055}
• SUNRPC: Ensure we flush any closed sockets before xs_xprt_free() {CVE-2022-28893}
• net/sched: cls_u32: fix netns refcount changes in u32_change() {CVE-2022-29581}
• i2c: ismt: Fix an out-of-bounds bug in ismt_access() {CVE-2022-2873}
• ovl: fail on invalid uid/gid mapping at copy up {CVE-2023-0386}

This kernel update is based on upstream 5.10.43 and fixes at least the following security issues:

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data (CVE-2020-24586).

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (CVE-2020-24587).

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets (CVE-2020-24588).

An issue was discovered in the kernel. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients (CVE-2020-26139).

An issue was discovered in the kernel ath10k driver. The Wi-Fi implementation does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol (CVE-2020-26141).

An issue was discovered in the kernel ath10k driver. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration (CVE-2020-26145).

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/ or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (CVE-2020-26147).

A use after free vulnerability has been found in the hci_sock_bound_ioctl() function of the Linux kernel. It can allow attackers to corrupt kernel heaps (kmalloc-8k to be specific) and adopt further exploitations (CVE-2021-3573).

There is a guest triggered use-after-free in Linux xen-netback. A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer. A malicious or buggy frontend driver can trigger a dom0 crash. Privilege escalation and information leaks cannot be ruled out. (CVE-2021-28691 / XSA-374).

There is a null pointer dereference in llcp_sock_getname in net/nfc/ llcp_sock.c of the Linux kernel. An unprivileged user can trigger this bug and cause denial of service (CVE-2021-38208).

Other fixes in this update:

• bpf: Forbid trampoline attach for functions with variable arguments
• bpf: Add deny list of btf ids check for tracing programs -…

This kernel-linus update is based on upstream 5.10.43 and fixes at least the following security issues:

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances, when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP, this can be abused to inject arbitrary network packets and/or exfiltrate user data (CVE-2020-24586).

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (CVE-2020-24587).

The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets (CVE-2020-24588).

An issue was discovered in the kernel. An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and makes it easier to exploit other vulnerabilities in connected clients (CVE-2020-26139).

An issue was discovered in the kernel ath10k driver. The Wi-Fi implementation does not verify the Message Integrity Check (authenticity) of fragmented TKIP frames. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol (CVE-2020-26141).

An issue was discovered in the kernel ath10k driver. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration (CVE-2020-26145).

An issue was discovered in the Linux kernel 5.8.9. The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/ or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (CVE-2020-26147).

A double-free memory corruption in the Linux kernel HCI device initialization subsystem was found in the way user attach malicious HCI TTY Bluetooth device. A local user could use this flaw to crash the system (CVE-2021-3564).

A use after free vulnerability has been found in the hci_sock_bound_ioctl() function of the Linux kernel. It can allow attackers to corrupt kernel heaps (kmalloc-8k to be specific) and adopt further exploitations (CVE-2021-3573).

There is a guest triggered use-after-free in Linux xen-netback. A malicious or buggy network PV frontend can force Linux netback to disable the interface and terminate the receive kernel thread associated with queue 0 in response to the frontend sending a malformed packet. Such kernel thread termination will lead to a use-after-free in Linux netback when the backend is destroyed, as the kernel thread associated with queue 0 will have already exited and thus the call to kthread_stop will be performed against a stale pointer. A malicious or buggy frontend driver can trigger a dom0 crash. Privilege escalation and information leaks cannot be ruled out. (CVE-2021-28691 / XSA-374).

There is a null pointer dereference in llcp_sock_getname in net/nfc/ llcp_sock.c of the Linux kernel. An unprivileged…

The openSUSE Leap 15.2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)

The following non-security bugs were fixed:

• ACPI / hotplug / PCI: Fix reference count leak in enable_slot() (git-fixes).
• ACPI: GTDT: Do not corrupt interrupt mappings on watchdow probe failure (git-fixes).
• ACPI: custom_method: fix a possible memory leak (git-fixes).
• ACPI: custom_method: fix potential use-after-free issue (git-fixes).
• ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro (git-fixes).
• ALSA: bebob: enable to deliver MIDI messages for multiple ports (git-fixes).
• ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26 (git-fixes).
• ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency (git-fixes).
• ALSA: firewire-lib: fix…

The SUSE Linux Enterprise 15 SP2 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)

The following non-security bugs were fixed:

• ACPI / hotplug / PCI: Fix reference count leak in enable_slot() (git-fixes).
• ACPI: GTDT: Do not corrupt interrupt mappings on watchdow probe failure (git-fixes).
• ACPI: custom_method: fix a possible memory leak (git-fixes).
• ACPI: custom_method: fix potential use-after-free issue (git-fixes).
• ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro (git-fixes).
• ALSA: bebob: enable to deliver MIDI messages for multiple ports (git-fixes).
• ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26 (git-fixes).
• ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency (git-fixes).
• ALSA:…

The SUSE Linux Enterprise 15 SP3 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)
• CVE-2021-29650: Fixed an issue with the netfilter subsystem that allowed attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value (bnc#1184208).
• CVE-2021-29155: Fixed an issue that was discovered in kernel/bpf/verifier.c that performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation was not correctly accounted for when…

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)
• CVE-2021-29650: Fixed an issue with the netfilter subsystem that allowed attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value (bnc#1184208).
• CVE-2021-29155: Fixed an issue that was discovered in kernel/bpf/verifier.c that performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation was not correctly accounted for when restricting…

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)
• CVE-2021-33624: Fixed a bug which allows unprivileged BPF program to leak the contents of arbitrary kernel memory (and therefore, of all physical memory) via a side-channel. (bsc#1187554)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bnc#1179610)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bnc#1186463)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861 bsc#1185863)
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (bsc#1188062)
• CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol which allows for local privilege escalation. (bsc#1187215)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (bsc#1187050)
• CVE-2021-33200: Fix leakage of uninitialized bpf stack under speculation. (bsc#1186484)

The following non-security bugs were fixed:

• af_packet: fix the tx skb protocol in raw sockets with ETH_P_ALL (bsc#1176081).
• kabi: preserve struct header_ops after bsc#1176081 fix (bsc#1176081).
• net: Do not set transport offset to invalid value (bsc#1176081).
• net: Introduce parse_protocol header_ops callback (bsc#1176081).
• net/ethernet: Add parse_protocol header_ops support (bsc#1176081).
• net/mlx5e: Remove the wrong assumption about transport offset (bsc#1176081).
• net/mlx5e: Trust kernel regarding transport offset (bsc#1176081).
• net/packet: Ask driver for protocol if not provided by user (bsc#1176081).
• net/packet: Remove redundant skb->protocol set (bsc#1176081).
• resource: Fix find_next_iomem_res() iteration issue (bsc#1181193).
• scsi: scsi_dh_alua: Retry RTPG on a different path after failure (bsc#1174978 bsc#1185701).
• SUNRPC in case of backlog, hand free slots directly to waiting task (bsc#1185428).
• SUNRPC: More fixes for backlog congestion (bsc#1185428).
• x86/crash: Add e820 reserved ranges to kdump kernel's e820 table (bsc#1181193).
• x86/debug: Extend the lower bound of crash kernel low reservations (bsc#1153720).
• x86/e820, ioport: Add a new I/O resource descriptor IORES_DESC_RESERVED (bsc#1181193).
• x86/mm: Rework ioremap resource mapping determination (bsc#1181193).

These are all security issues fixed in the kernel-devel-5.14.6-1.4 package on the GA media of openSUSE Tumbleweed.

These are all security issues fixed in the kernel-devel-longterm-6.6.17-1.1 package on the GA media of openSUSE Tumbleweed.

The SUSE Linux Enterprise 11 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-0512: Fixed a possible out of bounds write due to a heap buffer overflow in __hidinput_change_resolution_multipliers. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. (bsc#1187595)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861 bsc#1185863)
• CVE-2021-29154: Fixed an incorrect computation of branch displacements in the BPF JIT compilers, which could allow to execute arbitrary code within the kernel context. (bsc#1184391)
• CVE-2021-32399: Fixed a race condition in net/bluetooth/hci_request.c for removal of the HCI controller. (bsc#1184611)
• CVE-2020-24586: Fixed a bug that, under the right circumstances, allows to inject arbitrary network packets and/or exfiltrate user data when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP. (bsc#1185859 bsc#1185863)
• CVE-2020-26139: Fixed a bug that allows an Access Point (AP) to forward EAPOL frames to other clients even though the sender has not yet successfully authenticated. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and made it easier to exploit other vulnerabilities in connected clients. (bsc#1185863 bsc#1186062)
• CVE-2020-24587: Fixed a bug that allows an adversary to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed. (bsc#1185862 bsc#1185863)

The following non-security bugs were fixed:

• md: do not flush workqueue unconditionally in md_open (bsc#1184081).
• md: factor out a mddev_find_locked helper from mddev_find (bsc#1184081).
• md: md_open returns -EBUSY when entering racing area (bsc#1184081).
• md: split mddev_find (bsc#1184081).

The SUSE Linux Enterprise 15 SP2 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)

The following non-security bugs were fixed:

• ACPI / hotplug / PCI: Fix reference count leak in enable_slot() (git-fixes).
• ACPI: GTDT: Do not corrupt interrupt mappings on watchdow probe failure (git-fixes).
• ACPI: custom_method: fix a possible memory leak (git-fixes).
• ACPI: custom_method: fix potential use-after-free issue (git-fixes).
• ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro (git-fixes).
• ALSA: bebob: enable to deliver MIDI messages for multiple ports (git-fixes).
• ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26 (git-fixes).
• ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency (git-fixes).
• ALSA:…

The SUSE Linux Enterprise 15 SP2 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)

The following non-security bugs were fixed:

• ACPI / hotplug / PCI: Fix reference count leak in enable_slot() (git-fixes).
• ACPI: GTDT: Do not corrupt interrupt mappings on watchdow probe failure (git-fixes).
• ACPI: custom_method: fix a possible memory leak (git-fixes).
• ACPI: custom_method: fix potential use-after-free issue (git-fixes).
• ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro (git-fixes).
• ALSA: bebob: enable to deliver MIDI messages for multiple ports (git-fixes).
• ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26 (git-fixes).
• ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency (git-fixes).
• ALSA:…

The SUSE Linux Enterprise 15 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)

The following non-security bugs were fixed:

• ACPI / hotplug / PCI: Fix reference count leak in enable_slot() (git-fixes).
• ACPI: GTDT: Do not corrupt interrupt mappings on watchdow probe failure (git-fixes).
• ACPI: custom_method: fix a possible memory leak (git-fixes).
• ACPI: custom_method: fix potential use-after-free issue (git-fixes).
• ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro (git-fixes).
• ALSA: bebob: enable to deliver MIDI messages for multiple ports (git-fixes).
• ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26 (git-fixes).
• ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency (git-fixes).
• ALSA: firewire-lib:…

The SUSE Linux Enterprise 15 SP3 Azure kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)
• CVE-2021-29650: Fixed an issue with the netfilter subsystem that allowed attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value (bnc#1184208).
• CVE-2021-29155: Fixed an issue that was discovered in kernel/bpf/verifier.c that performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation was not correctly accounted for when…

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)
• CVE-2021-29650: Fixed an issue with the netfilter subsystem that allowed attackers to cause a denial of service (panic) because net/netfilter/x_tables.c and include/linux/netfilter/x_tables.h lack a full memory barrier upon the assignment of a new table value (bnc#1184208).
• CVE-2021-29155: Fixed an issue that was discovered in kernel/bpf/verifier.c that performs undesirable out-of-bounds speculation on pointer arithmetic, leading to side-channel attacks that defeat Spectre mitigations and obtain sensitive information from kernel memory. Specifically, for sequences of pointer arithmetic operations, the pointer modification performed by the first operation was not correctly accounted for when restricting…

The SUSE Linux Enterprise 15 SP2 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33200: Enforcing incorrect limits for pointer arithmetic operations by the BPF verifier could be abused to perform out-of-bounds reads and writes in kernel memory (bsc#1186484).
• CVE-2021-33034: Fixed a use-after-free when destroying an hci_chan. This could lead to writing an arbitrary values. (bsc#1186111)
• CVE-2020-26139: Fixed a denial-of-service when an Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. (bnc#1186062)
• CVE-2021-23134: A Use After Free vulnerability in nfc sockets allowed local attackers to elevate their privileges. (bnc#1186060)
• CVE-2021-3491: Fixed a potential heap overflow in mem_rw(). This vulnerability is related to the PROVIDE_BUFFERS operation, which allowed the MAX_RW_COUNT limit to be bypassed (bsc#1185642).
• CVE-2021-32399: Fixed a race condition when removing the HCI controller (bnc#1184611).
• CVE-2020-24586: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that received fragments be cleared from memory after (re)connecting to a network. Under the right circumstances this can be abused to inject arbitrary network packets and/or exfiltrate user data (bnc#1185859).
• CVE-2020-24587: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that all fragments of a frame are encrypted under the same key. An adversary can abuse this to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed (bnc#1185859 bnc#1185862).
• CVE-2020-26147: The WEP, WPA, WPA2, and WPA3 implementations reassemble fragments, even though some of them were sent in plaintext. This vulnerability can be abused to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP data-confidentiality protocol is used (bnc#1185859).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets. (bnc#1185861)
• CVE-2020-26145: An issue was discovered with Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration. (bnc#1185860)
• CVE-2020-26141: An issue was discovered in the ALFA driver for AWUS036H, where the Message Integrity Check (authenticity) of fragmented TKIP frames was not verified. An adversary can abuse this to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bnc#1185987)

The following non-security bugs were fixed:

• ACPI / hotplug / PCI: Fix reference count leak in enable_slot() (git-fixes).
• ACPI: GTDT: Do not corrupt interrupt mappings on watchdow probe failure (git-fixes).
• ACPI: custom_method: fix a possible memory leak (git-fixes).
• ACPI: custom_method: fix potential use-after-free issue (git-fixes).
• ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro (git-fixes).
• ALSA: bebob: enable to deliver MIDI messages for multiple ports (git-fixes).
• ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26 (git-fixes).
• ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency (git-fixes).
• ALSA:…

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33624: Fixed a bug which allows unprivileged BPF program to leak the contents of arbitrary kernel memory (and therefore, of all physical memory) via a side-channel. (bsc#1187554)
• CVE-2019-25045: Fixed an use-after-free issue in the Linux kernel The XFRM subsystem, related to an xfrm_state_fini panic. (bsc#1187049)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bsc#1186463)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)

The following non-security bugs were fixed:

• ALSA: timer: Fix master timer notification (git-fixes).
• alx: Fix an error handling path in 'alx_probe()' (git-fixes).
• ASoC: sti-sas: add missing MODULE_DEVICE_TABLE (git-fixes).
• batman-adv: Avoid WARN_ON timing related checks (git-fixes).
• blk-mq: Swap two calls in blk_mq_exit_queue() (bsc#1187453).
• blk-wbt: Fix missed wakeup (bsc#1186627).
• block: Discard page cache of zone reset target range (bsc#1187402).
• Bluetooth: fix the erroneous flush_work() order (git-fixes).
• Bluetooth: use correct lock to prevent UAF of hdev object (git-fixes).
• btrfs: account for new extents being deleted in total_bytes_pinned (bsc#1135481).
• btrfs: add a comment explaining the data flush steps (bsc#1135481).
• btrfs: add btrfs_reserve_data_bytes and use it (bsc#1135481).
• btrfs: add flushing states for handling data reservations (bsc#1135481).
• btrfs: add missing error handling after doing leaf/node binary search (bsc#1187833).
• btrfs: add the data transaction commit logic into may_commit_transaction (bsc#1135481).
• btrfs: call btrfs_try_granting_tickets when freeing reserved bytes (bsc#1135481).
• btrfs: call btrfs_try_granting_tickets when reserving space (bsc#1135481).
• btrfs: call btrfs_try_granting_tickets when unpinning anything (bsc#1135481).
• btrfs: change insert_dirty_subvol to return errors (bsc#1187833).
• btrfs: change nr to u64 in btrfs_start_delalloc_roots (bsc#1135481).
• btrfs: check record_root_in_trans related failures in select_reloc_root (bsc#1187833).
• btrfs: check return value of btrfs_commit_transaction in relocation (bsc#1187833).
• btrfs: check tickets after waiting on ordered extents (bsc#1135481).
• btrfs: cleanup error handling in prepare_to_merge (bsc#1187833).
• btrfs: convert BUG_ON()'s in relocate_tree_block (bsc#1187833).
• btrfs: convert BUG_ON()'s in select_reloc_root() to proper errors (bsc#1187833).
• btrfs: convert logic BUG_ON()'s in replace_path to ASSERT()'s (bsc#1187833).
• btrfs: convert some BUG_ON()'s to ASSERT()'s in do_relocation (bsc#1187833).
• btrfs: do async reclaim for data reservations (bsc#1135481).
• btrfs: do not force commit if we are data (bsc#1135481).
• btrfs: do not leak reloc root if we fail to read the fs root (bsc#1187833).
• btrfs: do not make defrag wait on async_delalloc_pages (bsc#1135481).
• btrfs: do not…

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33624: Fixed a bug which allows unprivileged BPF program to leak the contents of arbitrary kernel memory (and therefore, of all physical memory) via a side-channel. (bsc#1187554)
• CVE-2019-25045: Fixed an use-after-free issue in the Linux kernel The XFRM subsystem, related to an xfrm_state_fini panic. (bsc#1187049)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bsc#1186463)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)

The following non-security bugs were fixed:

• ALSA: timer: Fix master timer notification (git-fixes).
• alx: Fix an error handling path in 'alx_probe()' (git-fixes).
• ASoC: sti-sas: add missing MODULE_DEVICE_TABLE (git-fixes).
• batman-adv: Avoid WARN_ON timing related checks (git-fixes).
• blk-mq: Swap two calls in blk_mq_exit_queue() (bsc#1187453).
• blk-wbt: Fix missed wakeup (bsc#1186627).
• block: Discard page cache of zone reset target range (bsc#1187402).
• Bluetooth: fix the erroneous flush_work() order (git-fixes).
• Bluetooth: use correct lock to prevent UAF of hdev object (git-fixes).
• btrfs: account for new extents being deleted in total_bytes_pinned (bsc#1135481).
• btrfs: add a comment explaining the data flush steps (bsc#1135481).
• btrfs: add btrfs_reserve_data_bytes and use it (bsc#1135481).
• btrfs: add flushing states for handling data reservations (bsc#1135481).
• btrfs: add missing error handling after doing leaf/node binary search (bsc#1187833).
• btrfs: add the data transaction commit logic into may_commit_transaction (bsc#1135481).
• btrfs: call btrfs_try_granting_tickets when freeing reserved bytes (bsc#1135481).
• btrfs: call btrfs_try_granting_tickets when reserving space (bsc#1135481).
• btrfs: call btrfs_try_granting_tickets when unpinning anything (bsc#1135481).
• btrfs: change insert_dirty_subvol to return errors (bsc#1187833).
• btrfs: change nr to u64 in btrfs_start_delalloc_roots (bsc#1135481).
• btrfs: check record_root_in_trans related failures in select_reloc_root (bsc#1187833).
• btrfs: check return value of btrfs_commit_transaction in relocation (bsc#1187833).
• btrfs: check tickets after waiting on ordered extents (bsc#1135481).
• btrfs: cleanup error handling in prepare_to_merge (bsc#1187833).
• btrfs: convert BUG_ON()'s in relocate_tree_block (bsc#1187833).
• btrfs: convert BUG_ON()'s in select_reloc_root() to proper errors (bsc#1187833).
• btrfs: convert logic BUG_ON()'s in replace_path to ASSERT()'s (bsc#1187833).
• btrfs: convert some BUG_ON()'s to ASSERT()'s in do_relocation (bsc#1187833).
• btrfs: do async reclaim for data reservations (bsc#1135481).
• btrfs: do not force commit if we are data (bsc#1135481).
• btrfs: do not leak reloc root if we fail to read the fs root (bsc#1187833).
• btrfs: do not make defrag wait on async_delalloc_pages (bsc#1135481).
• btrfs: do not…

The SUSE Linux Enterprise 12 SP5 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-33624: Fixed a bug which allows unprivileged BPF program to leak the contents of arbitrary kernel memory (and therefore, of all physical memory) via a side-channel. (bsc#1187554)
• CVE-2019-25045: Fixed an use-after-free issue in the Linux kernel The XFRM subsystem, related to an xfrm_state_fini panic. (bsc#1187049)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bsc#1186463)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)

The following non-security bugs were fixed:

• ACPI: custom_method: fix a possible memory leak (git-fixes).
• ACPI: custom_method: fix potential use-after-free issue (git-fixes).
• ACPI: GTDT: Do not corrupt interrupt mappings on watchdow probe failure (git-fixes).
• ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro (git-fixes).
• ALSA: emu8000: Fix a use after free in snd_emu8000_create_mixer (git-fixes).
• ALSA: hda/conexant: Re-order CX5066 quirk table entries (git-fixes).
• ALSA: hda/realtek: Re-order ALC269 Lenovo quirk table entries (git-fixes).
• ALSA: hda/realtek: Re-order ALC269 Sony quirk table entries (git-fixes).
• ALSA: hda/realtek: Re-order ALC882 Acer quirk table entries (git-fixes).
• ALSA: hda/realtek: Re-order ALC882 Sony quirk table entries (git-fixes).
• ALSA: hda/realtek: Remove redundant entry for ALC861 Haier/Uniwill devices (git-fixes).
• ALSA: hda/realtek: reset eapd coeff to default value for alc287 (git-fixes).
• ALSA: hdsp: do not disable if not enabled (git-fixes).
• ALSA: hdspm: do not disable if not enabled (git-fixes).
• ALSA: line6: Fix racy initialization of LINE6 MIDI (git-fixes).
• ALSA: rme9652: do not disable if not enabled (git-fixes).
• ALSA: sb: Fix two use after free in snd_sb_qsound_build (git-fixes).
• ALSA: timer: Fix master timer notification (git-fixes).
• ALSA: usb-audio: Add MIDI quirk for Vox ToneLab EX (git-fixes).
• alx: Fix an error handling path in 'alx_probe()' (git-fixes).
• ASoC: cs35l33: fix an error code in probe() (git-fixes).
• ASoC: cs42l42: Regmap must use_single_read/write (git-fixes).
• ASoC: rt286: Generalize support for ALC3263 codec (git-fixes).
• ASoC: rt286: Make RT286_SET_GPIO_* readable and writable (git-fixes).
• ASoC: sti-sas: add missing MODULE_DEVICE_TABLE (git-fixes).
• batman-adv: Avoid WARN_ON timing related checks (git-fixes).
• blk-mq: Swap two calls in blk_mq_exit_queue() (bsc#1187453).
• blk-wbt: Fix missed wakeup (bsc#1186627).
• block: Discard page cache of zone reset target range (bsc#1187402).
• Bluetooth: fix the erroneous flush_work() order (git-fixes).
• Bluetooth: initialize skb_queue_head at l2cap_chan_create() (git-fixes).
• Bluetooth: Set CONF_NOT_COMPLETE as l2cap_chan default (git-fixes).
• Bluetooth: SMP: Fail if remote and local public keys are identical (git-fixes).
• Bluetooth: use correct lock to prevent UAF of hdev…

The SUSE Linux Enterprise 12 SP2 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to obtain full root privileges. (bsc#1188062)
• CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol which allows for local privilege escalation. (bsc#1187215)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (bsc#1187050)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bsc#1186463)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)
• CVE-2021-32399: Fixed a race condition in net/bluetooth/hci_request.c for removal of the HCI controller. (bsc#1184611)
• CVE-2021-33034: Fixed an issue in net/bluetooth/hci_event.c where a use-after-free leads to writing an arbitrary value. (bsc#1186111)
• CVE-2020-26139: Fixed a bug that allows an Access Point (AP) to forward EAPOL frames to other clients even though the sender has not yet successfully authenticated. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and made it easier to exploit other vulnerabilities in connected clients. (bsc#1186062)
• CVE-2021-23134: Fixed a use After Free vulnerability in nfc sockets which allows local attackers to elevate their privileges. (bsc#1186060)
• CVE-2020-24586: Fixed a bug that, under the right circumstances, allows to inject arbitrary network packets and/or exfiltrate user data when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP. (bsc#1185859)
• CVE-2020-26141: Fixed a flaw that could allows an adversary to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bsc#1185987)
• CVE-2020-26145: Fixed a bug in the WEP, WPA, WPA2, and WPA3 implementations that could allows an adversary to inject arbitrary network packets. (bsc#1185860)
• CVE-2020-24587: Fixed a bug that allows an adversary to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed. (bsc#1185862)
• CVE-2020-26147: Fixed a bug in the WEP, WPA, WPA2, and WPA3 implementations that could allows an adversary to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames. (bsc#1185987)

The following non-security bugs were fixed:

• kABI: Fix kABI after modifying struct __call_single_data (bsc#1180846).
• kernel/smp: add boot parameter for controlling CSD lock debugging (bsc#1180846).
• kernel/smp: Add source and destination CPUs to __call_single_data (bsc#1180846).
• kernel/smp: make csdlock timeout depend on boot parameter (bsc#1180846).
• kernel/smp: Provide CSD lock…

The SUSE Linux Enterprise 15 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-22555: A heap out-of-bounds write was discovered in net/netfilter/x_tables.c (bnc#1188116 ).
• CVE-2021-33909: Extremely large seq buffer allocations in seq_file could lead to buffer underruns and code execution (bsc#1188062).
• CVE-2021-3609: A use-after-free in can/bcm could have led to privilege escalation (bsc#1187215).
• CVE-2021-33624: In kernel/bpf/verifier.c a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db (bnc#1187554).
• CVE-2021-0605: In pfkey_dump of af_key.c, there is a possible out-of-bounds read due to a missing bounds check. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1187601).
• CVE-2021-0512: In __hidinput_change_resolution_multipliers of hid-input.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation (bnc#1187595).
• CVE-2020-26558: Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time (bnc#1179610).
• CVE-2021-34693: net/can/bcm.c in the Linux kernel allowed local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized (bnc#1187452).
• CVE-2020-36385: An issue was discovered in the Linux kernel drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c (bnc#1187050).
• CVE-2021-0129: Improper access control in BlueZ may have allowed an authenticated user to potentially enable information disclosure via adjacent access (bnc#1186463).
• CVE-2020-36386: An issue was discovered in the Linux kernel net/bluetooth/hci_event.c has a slab out-of-bounds read in hci_extended_inquiry_result_evt, aka CID-51c19bf3d5cf (bnc#1187038).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets (bnc#1185861).
• CVE-2021-33200: kernel/bpf/verifier.c enforced incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit (bnc#1186484).
• CVE-2021-33034: net/bluetooth/hci_event.c had a use-after-free when destroying an hci_chan, aka CID-5c4c8c954409. This leads to writing an arbitrary value (bnc#1186111).
• CVE-2020-26139: An Access Point (AP) forwards EAPOL frames to other clients even though the sender has not yet successfully authenticated to the AP. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and made it easier to exploit other vulnerabilities in connected clients (bnc#1186062).…

The SUSE Linux Enterprise 12 SP4 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-22555: A heap out-of-bounds write was discovered in net/netfilter/x_tables.c (bnc#1188116).
• CVE-2021-33909: Extremely large seq buffer allocations in seq_file could lead to buffer underruns and code execution (bsc#1188062).
• CVE-2021-3609: A use-after-free in can/bcm could have led to privilege escalation (bsc#1187215).
• CVE-2021-33624: In kernel/bpf/verifier.c a branch can be mispredicted (e.g., because of type confusion) and consequently an unprivileged BPF program can read arbitrary memory locations via a side-channel attack, aka CID-9183671af6db (bnc#1187554).
• CVE-2021-0605: In pfkey_dump of af_key.c, there is a possible out-of-bounds read due to a missing bounds check. This could lead to local information disclosure in the kernel with System execution privileges needed. User interaction is not needed for exploitation (bnc#1187601).
• CVE-2021-0512: In __hidinput_change_resolution_multipliers of hid-input.c, there is a possible out of bounds write due to a heap buffer overflow. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation (bnc#1187595).
• CVE-2020-26558: Bluetooth LE and BR/EDR secure pairing in Bluetooth Core Specification 2.1 may permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing (in the Passkey authentication procedure) by reflection of the public key and the authentication evidence of the initiating device, potentially permitting this attacker to complete authenticated pairing with the responding device using the correct Passkey for the pairing session. The attack methodology determines the Passkey value one bit at a time (bnc#1179610 bnc#1186463).
• CVE-2021-34693: net/can/bcm.c allowed local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized (bnc#1187452).
• CVE-2020-36385: An issue was discovered in drivers/infiniband/core/ucma.c has a use-after-free because the ctx is reached via the ctx_list in some ucma_migrate_id situations where ucma_close is called, aka CID-f5449e74802c (bnc#1187050).
• CVE-2021-0129: Improper access control in BlueZ may have allowed an authenticated user to potentially enable information disclosure via adjacent access (bnc#1186463).
• CVE-2020-36386: An issue was discovered net/bluetooth/hci_event.c has a slab out-of-bounds read in hci_extended_inquiry_result_evt, aka CID-51c19bf3d5cf (bnc#1187038).
• CVE-2020-24588: The 802.11 standard that underpins Wi-Fi Protected Access (WPA, WPA2, and WPA3) and Wired Equivalent Privacy (WEP) doesn't require that the A-MSDU flag in the plaintext QoS header field is authenticated. Against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n), an adversary can abuse this to inject arbitrary network packets (bnc#1185861).
• CVE-2021-33200: kernel/bpf/verifier.c enforced incorrect limits for pointer arithmetic operations, aka CID-bb01a1bba579. This can be abused to perform out-of-bounds reads and writes in kernel memory, leading to local privilege escalation to root. In particular, there is a corner case where the off reg causes a masking direction change, which then results in an incorrect final aux->alu_limit (bnc#1186484).

The following non-security bugs were fixed:

• block: do not use blocking queue entered for recursive bio (bsc#1104967).
• s390/stack: fix possible register corruption with stack switch helper (git-fixes).
• scsi: scsi_dh_alua: Retry RTPG on a different path after failure (bsc#1174978 bsc#1185701).

The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)
• CVE-2021-33624: Fixed a bug which allows unprivileged BPF program to leak the contents of arbitrary kernel memory (and therefore, of all physical memory) via a side-channel. (bsc#1187554)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bnc#1179610)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bnc#1186463)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861 bsc#1185863)
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to andobtain full root privileges. (bsc#1188062)
• CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol which allows for local privilege escalation. (bsc#1187215)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (bsc#1187050)
• CVE-2021-33200: Fix leakage of uninitialized bpf stack under speculation. (bsc#1186484)

The following non-security bugs were fixed:

• af_packet: fix the tx skb protocol in raw sockets with ETH_P_ALL (bsc#1176081).
• kabi: preserve struct header_ops after bsc#1176081 fix (bsc#1176081).
• net: Do not set transport offset to invalid value (bsc#1176081).
• net: Introduce parse_protocol header_ops callback (bsc#1176081).
• net/ethernet: Add parse_protocol header_ops support (bsc#1176081).
• net/mlx5e: Remove the wrong assumption about transport offset (bsc#1176081).
• net/mlx5e: Trust kernel regarding transport offset (bsc#1176081).
• net/packet: Ask driver for protocol if not provided by user (bsc#1176081).
• net/packet: Remove redundant skb->protocol set (bsc#1176081).
• resource: Fix find_next_iomem_res() iteration issue (bsc#1181193).
• scsi: scsi_dh_alua: Retry RTPG on a different path after failure (bsc#1174978 bsc#1185701).
• SUNRPC in case of backlog, hand free slots directly to waiting task (bsc#1185428).
• SUNRPC: More fixes for backlog congestion (bsc#1185428).
• x86/crash: Add e820 reserved ranges to kdump kernel's e820 table (bsc#1181193).
• x86/debug: Extend the lower bound of crash kernel low reservations (bsc#1153720).
• x86/e820, ioport: Add a new I/O resource descriptor IORES_DESC_RESERVED (bsc#1181193).
• x86/mm: Rework ioremap resource mapping determination (bsc#1181193).

The SUSE Linux Enterprise 12 SP3 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2021-22555: Fixed an heap out-of-bounds write in net/netfilter/x_tables.c that could allow local provilege escalation. (bsc#1188116)
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to obtain full root privileges. (bsc#1188062)
• CVE-2021-3609: Fixed a race condition in the CAN BCM networking protocol which allows for local privilege escalation. (bsc#1187215)
• CVE-2021-0605: Fixed an out-of-bounds read which could lead to local information disclosure in the kernel with System execution privileges needed. (bsc#1187601)
• CVE-2021-0512: Fixed a possible out-of-bounds write which could lead to local escalation of privilege with no additional execution privileges needed. (bsc#1187595)
• CVE-2021-34693: Fixed a bug in net/can/bcm.c which could allow local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized. (bsc#1187452)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (bsc#1187050)
• CVE-2021-0129: Fixed an improper access control in BlueZ that may have allowed an authenticated user to potentially enable information disclosure via adjacent access. (bsc#1186463)
• CVE-2020-26558: Fixed a flaw in the Bluetooth LE and BR/EDR secure pairing that could permit a nearby man-in-the-middle attacker to identify the Passkey used during pairing. (bsc#1179610)
• CVE-2020-36386: Fixed an out-of-bounds read in hci_extended_inquiry_result_evt. (bsc#1187038)
• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets. (bsc#1185861)
• CVE-2021-32399: Fixed a race condition in net/bluetooth/hci_request.c for removal of the HCI controller. (bsc#1184611)
• CVE-2021-33034: Fixed an issue in net/bluetooth/hci_event.c where a use-after-free leads to writing an arbitrary value. (bsc#1186111)
• CVE-2020-26139: Fixed a bug that allows an Access Point (AP) to forward EAPOL frames to other clients even though the sender has not yet successfully authenticated. This might be abused in projected Wi-Fi networks to launch denial-of-service attacks against connected clients and made it easier to exploit other vulnerabilities in connected clients. (bsc#1186062)
• CVE-2021-23134: Fixed a use After Free vulnerability in nfc sockets which allows local attackers to elevate their privileges. (bsc#1186060)
• CVE-2020-24586: Fixed a bug that, under the right circumstances, allows to inject arbitrary network packets and/or exfiltrate user data when another device sends fragmented frames encrypted using WEP, CCMP, or GCMP. (bsc#1185859)
• CVE-2020-26141: Fixed a flaw that could allows an adversary to inject and possibly decrypt packets in WPA or WPA2 networks that support the TKIP data-confidentiality protocol. (bsc#1185987)
• CVE-2020-26145: Fixed a bug in the WEP, WPA, WPA2, and WPA3 implementations that could allows an adversary to inject arbitrary network packets. (bsc#1185860)
• CVE-2020-24587: Fixed a bug that allows an adversary to decrypt selected fragments when another device sends fragmented frames and the WEP, CCMP, or GCMP encryption key is periodically renewed. (bsc#1185862)
• CVE-2020-26147: Fixed a bug in the WEP, WPA, WPA2, and WPA3 implementations that could allows an adversary to inject packets and/or exfiltrate selected fragments when another device sends fragmented frames. (bsc#1185987)

The following non-security bugs were fixed:

• Bluetooth: SMP: Fail if remote and local public keys are identical (git-fixes).
• Drivers: hv: vmbus: Increase wait time for VMbus unload (bsc#1185724).
• Drivers: hv: vmbus: Initialize unload_event statically (bsc#1185724).
• hv_netvsc: Add handlers for ethtool get/set msg level (bsc#1175462).
• hv_netvsc: avoid retry on send during shutdown…

The SUSE Linux Enterprise 15 SP4 AZURE kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-0266: Fixed a use-after-free vulnerability inside the ALSA PCM package. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 was missing locks that could have been used in a use-after-free that could have resulted in a priviledge escalation to gain ring0 access from the system user (bsc#1207134).
• CVE-2023-0179: Fixed incorrect arithmetics when fetching VLAN header bits (bsc#1207034).
• CVE-2022-47929: Fixed NULL pointer dereference bug in the traffic control subsystem (bnc#1207237).
• CVE-2022-4382: Fixed a use-after-free flaw that was caused by a race condition among the superblock operations inside the gadgetfs code (bsc#1206258).
• CVE-2020-24588: Fixed injection of arbitrary network packets against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n) (bsc#1199701).

The following non-security bugs were fixed:

• ACPI: EC: Fix EC address space handler unregistration (bsc#1207149).
• ACPI: EC: Fix ECDT probe ordering issues (bsc#1207149).
• ACPI: PRM: Check whether EFI runtime is available (git-fixes).
• ACPICA: Allow address_space_handler Install and _REG execution as 2 separate steps (bsc#1207149).
• ACPICA: include/acpi/acpixf.h: Fix indentation (bsc#1207149).
• ALSA: control-led: use strscpy in set_led_id() (git-fixes).
• ALSA: hda - Enable headset mic on another Dell laptop with ALC3254 (git-fixes).
• ALSA: hda/hdmi: Add a HP device 0x8715 to force connect list (git-fixes).
• ALSA: hda/realtek - Turn on power early (git-fixes).
• ALSA: hda/realtek: Add Acer Predator PH315-54 (git-fixes).
• ALSA: hda/realtek: Enable mute/micmute LEDs on HP Spectre x360 13-aw0xxx (git-fixes).
• ALSA: hda/realtek: fix mute/micmute LEDs do not work for a HP platform (git-fixes).
• ALSA: hda/realtek: fix mute/micmute LEDs for a HP ProBook (git-fixes).
• ALSA: hda/realtek: fix mute/micmute LEDs, speaker do not work for a HP platform (git-fixes).
• ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path() (git-fixes).
• ALSA: hda: cs35l41: Check runtime suspend capability at runtime_idle (git-fixes).
• ALSA: hda: cs35l41: Do not return -EINVAL from system suspend/resume (git-fixes).
• ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (git-fixes).
• ALSA: usb-audio: Make sure to stop endpoints before closing EPs (git-fixes).
• ALSA: usb-audio: Relax hw constraints for implicit fb sync (git-fixes).
• ARM: dts: at91: sam9x60: fix the ddr clock for sam9x60 (git-fixes).
• ARM: dts: imx6qdl-gw560x: Remove incorrect 'uart-has-rtscts' (git-fixes).
• ARM: dts: imx6ul-pico-dwarf: Use 'clock-frequency' (git-fixes).
• ARM: dts: imx7d-pico: Use 'clock-frequency' (git-fixes).
• ARM: dts: imx: Fix pca9547 i2c-mux node name (git-fixes).
• ARM: dts: vf610: Fix pca9548 i2c-mux node names (git-fixes).
• ARM: imx: add missing of_node_put() (git-fixes).
• ASoC: Intel: bytcr_rt5651: Drop reference count of ACPI device after use (git-fixes).
• ASoC: Intel: bytcr_wm5102: Drop reference count of ACPI device after use (git-fixes).
• ASoC: fsl-asoc-card: Fix naming of AC'97 CODEC widgets (git-fixes).
• ASoC: fsl_micfil: Correct the number of steps on SX controls (git-fixes).
• ASoC: fsl_ssi: Rename AC'97 streams to avoid collisions with AC'97 CODEC (git-fixes).
• ASoC: qcom: lpass-cpu: Fix fallback SD line index handling (git-fixes).
• ASoC: wm8904: fix wrong outputs volume after power reactivation (git-fixes).
• Bluetooth: Fix possible deadlock in rfcomm_sk_state_change (git-fixes).
• Bluetooth: hci_qca: Fix driver shutdown on closed serdev (git-fixes).
• Documentation: Remove bogus claim about del_timer_sync() (git-fixes).
• HID: betop: check shape of output reports (git-fixes).
• HID: betop: check shape of output reports (git-fixes, bsc#1207186).
• HID: check empty report_list in bigben_probe() (git-fixes).
• HID: check empty report_list in…

The SUSE Linux Enterprise 15 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2023-23455: Fixed a denial of service inside atm_tc_enqueue in net/sched/sch_atm.c because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results) (bsc#1207125).
• CVE-2023-23454: Fixed denial or service in cbq_classify in net/sched/sch_cbq.c (bnc#1207036).
• CVE-2023-0590: Fixed race condition in qdisc_graft() (bsc#1207795).
• CVE-2023-0266: Fixed a use-after-free vulnerability inside the ALSA PCM package. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 was missing locks that could have been used in a use-after-free that could have resulted in a priviledge escalation to gain ring0 access from the system user (bsc#1207134).
• CVE-2023-0179: Fixed incorrect arithmetics when fetching VLAN header bits (bsc#1207034).
• CVE-2023-0122: Fixed a NULL pointer dereference vulnerability in nvmet_setup_auth(), that allowed an attacker to perform a Pre-Auth Denial of Service (DoS) attack on a remote machine (bnc#1207050).
• CVE-2022-4382: Fixed a use-after-free flaw that was caused by a race condition among the superblock operations inside the gadgetfs code (bsc#1206258).
• CVE-2020-24588: Fixed injection of arbitrary network packets against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n) (bsc#1199701).

The following non-security bugs were fixed:

• ACPI: EC: Fix EC address space handler unregistration (bsc#1207149).
• ACPI: EC: Fix ECDT probe ordering issues (bsc#1207149).
• ACPI: PRM: Check whether EFI runtime is available (git-fixes).
• ACPICA: Allow address_space_handler Install and _REG execution as 2 separate steps (bsc#1207149).
• ACPICA: include/acpi/acpixf.h: Fix indentation (bsc#1207149).
• ALSA: control-led: use strscpy in set_led_id() (git-fixes).
• ALSA: hda - Enable headset mic on another Dell laptop with ALC3254 (git-fixes).
• ALSA: hda/hdmi: Add a HP device 0x8715 to force connect list (git-fixes).
• ALSA: hda/realtek - Turn on power early (git-fixes).
• ALSA: hda/realtek: Add Acer Predator PH315-54 (git-fixes).
• ALSA: hda/realtek: Enable mute/micmute LEDs on HP Spectre x360 13-aw0xxx (git-fixes).
• ALSA: hda/realtek: fix mute/micmute LEDs do not work for a HP platform (git-fixes).
• ALSA: hda/realtek: fix mute/micmute LEDs for a HP ProBook (git-fixes).
• ALSA: hda/realtek: fix mute/micmute LEDs, speaker do not work for a HP platform (git-fixes).
• ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path() (git-fixes).
• ALSA: hda: cs35l41: Check runtime suspend capability at runtime_idle (git-fixes).
• ALSA: hda: cs35l41: Do not return -EINVAL from system suspend/resume (git-fixes).
• ALSA: pcm: Move rwsem lock inside snd_ctl_elem_read to prevent UAF (git-fixes).
• ALSA: usb-audio: Make sure to stop endpoints before closing EPs (git-fixes).
• ALSA: usb-audio: Relax hw constraints for implicit fb sync (git-fixes).
• ARM: dts: at91: sam9x60: fix the ddr clock for sam9x60 (git-fixes).
• ARM: dts: imx6qdl-gw560x: Remove incorrect 'uart-has-rtscts' (git-fixes).
• ARM: dts: imx6ul-pico-dwarf: Use 'clock-frequency' (git-fixes).
• ARM: dts: imx7d-pico: Use 'clock-frequency' (git-fixes).
• ARM: dts: imx: Fix pca9547 i2c-mux node name (git-fixes).
• ARM: dts: vf610: Fix pca9548 i2c-mux node names (git-fixes).
• ARM: imx: add missing of_node_put() (git-fixes).
• ASoC: Intel: bytcr_rt5651: Drop reference count of ACPI device after use (git-fixes).
• ASoC: Intel: bytcr_wm5102: Drop reference count of ACPI device after use (git-fixes).
• ASoC: fsl-asoc-card: Fix naming of AC'97 CODEC widgets (git-fixes).
• ASoC: fsl_micfil: Correct the number of steps on SX controls (git-fixes).
• ASoC: fsl_ssi: Rename AC'97 streams to avoid collisions with AC'97 CODEC (git-fixes).
• ASoC: qcom: lpass-cpu: Fix fallback SD line index handling (git-fixes).
• ASoC: wm8904: fix wrong outputs…

The SUSE Linux Enterprise 15 SP4 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-36280: Fixed an out-of-bounds memory access vulnerability that was found in vmwgfx driver in drivers/gpu/vmxgfx/vmxgfx_kms.c (bnc#1203332).
• CVE-2023-0045: Fixed flush IBP in ib_prctl_set() (bsc#1207773).
• CVE-2023-0590: Fixed race condition in qdisc_graft() (bsc#1207795).
• CVE-2023-0122: Fixed a NULL pointer dereference vulnerability in nvmet_setup_auth(), that allowed an attacker to perform a Pre-Auth Denial of Service (DoS) attack on a remote machine (bnc#1207050).
• CVE-2023-23455: Fixed a denial of service inside atm_tc_enqueue in net/sched/sch_atm.c because of type confusion (non-negative numbers can sometimes indicate a TC_ACT_SHOT condition rather than valid classification results) (bsc#1207125).
• CVE-2023-23454: Fixed denial or service in cbq_classify in net/sched/sch_cbq.c (bnc#1207036).
• CVE-2020-24588: Fixed injection of arbitrary network packets against devices that support receiving non-SSP A-MSDU frames (which is mandatory as part of 802.11n) (bsc#1199701).
• CVE-2023-0179: Fixed incorrect arithmetics when fetching VLAN header bits (bsc#1207034).
• CVE-2022-4382: Fixed a use-after-free flaw that was caused by a race condition among the superblock operations inside the gadgetfs code (bsc#1206258).
• CVE-2023-0266: Fixed a use-after-free vulnerability inside the ALSA PCM package. SNDRV_CTL_IOCTL_ELEM_{READ|WRITE}32 was missing locks that could have been used in a use-after-free that could have resulted in a priviledge escalation to gain ring0 access from the system user (bsc#1207134).
• CVE-2022-47929: Fixed NULL pointer dereference bug in the traffic control subsystem (bnc#1207237).

The following non-security bugs were fixed:

• ACPI: EC: Fix EC address space handler unregistration (bsc#1207149).
• ACPI: EC: Fix ECDT probe ordering issues (bsc#1207149).
• ACPI: PM: s2idle: Add support for upcoming AMD uPEP HID AMDI008 (bsc#1206224).
• ACPI: PM: s2idle: Use LPS0 idle if ACPI_FADT_LOW_POWER_S0 is unset (bsc#1206224).
• ACPI: PRM: Check whether EFI runtime is available (git-fixes).
• ACPI: x86: s2idle: Add a quirk for ASUS ROG Zephyrus G14 (bsc#1206224).
• ACPI: x86: s2idle: Add a quirk for ASUS TUF Gaming A17 FA707RE (bsc#1206224).
• ACPI: x86: s2idle: Add a quirk for ASUSTeK COMPUTER INC. ROG Flow X13 (bsc#1206224).
• ACPI: x86: s2idle: Add a quirk for Lenovo Slim 7 Pro 14ARH7 (bsc#1206224).
• ACPI: x86: s2idle: Add another ID to s2idle_dmi_table (bsc#1206224).
• ACPI: x86: s2idle: Add module parameter to prefer Microsoft GUID (bsc#1206224).
• ACPI: x86: s2idle: Fix a NULL pointer dereference (bsc#1206224).
• ACPI: x86: s2idle: Force AMD GUID/_REV 2 on HP Elitebook 865 (bsc#1206224).
• ACPI: x86: s2idle: If a new AMD _HID is missing assume Rembrandt (bsc#1206224).
• ACPI: x86: s2idle: Move _HID handling for AMD systems into structures (bsc#1206224).
• ACPI: x86: s2idle: Stop using AMD specific codepath for Rembrandt+ (bsc#1206224).
• ACPICA: Allow address_space_handler Install and _REG execution as 2 separate steps (bsc#1207149).
• ACPICA: include/acpi/acpixf.h: Fix indentation (bsc#1207149).
• ALSA: emux: Avoid potential array out-of-bound in snd_emux_xg_control() (git-fixes).
• ALSA: hda/realtek: Add Acer Predator PH315-54 (git-fixes).
• ALSA: hda/realtek: Add Positivo N14KP6-TG (git-fixes).
• ALSA: hda/realtek: Add quirk for ASUS UM3402 using CS35L41 (git-fixes).
• ALSA: hda/realtek: Enable mute/micmute LEDs on HP Elitebook, 645 G9 (git-fixes).
• ALSA: hda/realtek: Fix the speaker output on Samsung Galaxy Book2 Pro 360 (git-fixes).
• ALSA: hda/realtek: fix mute/micmute LEDs do not work for a HP platform (git-fixes).
• ALSA: hda/realtek: fix mute/micmute LEDs, speaker do not work for a HP platform (git-fixes).
• ALSA: hda/via: Avoid potential array out-of-bound in add_secret_dac_path() (git-fixes).
• ALSA: pci: lx6464es: fix a debug loop (git-fixes). -…

The SUSE Linux Enterprise 15 SP5 RT kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2020-24588: Fixed a bug that could allow an adversary to abuse devices that support receiving non-SSP A-MSDU frames to inject arbitrary network packets (bsc#1185861).
• CVE-2022-2196: Fixed a regression related to KVM that allowed for speculative execution attacks (bsc#1206992).
• CVE-2022-3523: Fixed a use after free related to device private page handling (bsc#1204363).
• CVE-2022-36280: Fixed out-of-bounds memory access vulnerability found in vmwgfx driver (bsc#1203332).
• CVE-2022-38096: Fixed NULL-ptr deref in vmw_cmd_dx_define_query() (bsc#1203331).
• CVE-2022-4269: Fixed a flaw was found inside the Traffic Control (TC) subsystem (bsc#1206024).
• CVE-2022-45884: Fixed a use-after-free in dvbdev.c, related to dvb_register_device dynamically allocating fops (bsc#1205756).
• CVE-2022-45885: Fixed a race condition in dvb_frontend.c that could cause a use-after-free when a device is disconnected (bsc#1205758).
• CVE-2022-45886: Fixed a .disconnect versus dvb_device_open race condition in dvb_net.c that lead to a use-after-free (bsc#1205760).
• CVE-2022-45887: Fixed a memory leak in ttusb_dec.c caused by the lack of a dvb_frontend_detach call (bsc#1205762).
• CVE-2022-45919: Fixed a use-after-free in dvb_ca_en50221.c that could occur if there is a disconnect after an open, because of the lack of a wait_event (bsc#1205803).
• CVE-2022-4744: Fixed double-free that could lead to DoS or privilege escalation in TUN/TAP device driver functionality (bsc#1209635).
• CVE-2023-0045: Fixed missing Flush IBP in ib_prctl_set (bsc#1207773).
• CVE-2023-0122: Fixed a NULL pointer dereference vulnerability in nvmet_setup_auth(), that allowed an attacker to perform a Pre-Auth Denial of Service (DoS) attack on a remote machine (bsc#1207050).
• CVE-2023-0179: Fixed incorrect arithmetics when fetching VLAN header bits (bsc#1207034).
• CVE-2023-0386: A flaw was found where unauthorized access to the execution of the setuid file with capabilities was found in the OverlayFS subsystem, when a user copies a capable file from a nosuid mount into another mount. This uid mapping bug allowed a local user to escalate their privileges on the system (bsc#1209615).
• CVE-2023-0394: Fixed a null pointer dereference in the network subcomponent. This flaw could cause system crashes (bsc#1207168).
• CVE-2023-0461: Fixed use-after-free in icsk_ulp_data (bsc#1208787).
• CVE-2023-0469: Fixed a use-after-free flaw in io_uring/filetable.c in io_install_fixed_file in the io_uring subcomponent (bsc#1207521).
• CVE-2023-0590: Fixed race condition in qdisc_graft() (bsc#1207795).
• CVE-2023-0597: Fixed lack of randomization of per-cpu entry area in x86/mm (bsc#1207845).
• CVE-2023-1075: Fixed a type confusion in tls_is_tx_ready (bsc#1208598).
• CVE-2023-1076: Fixed incorrect UID assigned to tun/tap sockets (bsc#1208599).
• CVE-2023-1077: Fixed a type confusion in pick_next_rt_entity(), that could cause memory corruption (bsc#1208600).
• CVE-2023-1078: Fixed a heap out-of-bounds write in rds_rm_zerocopy_callback (bsc#1208601).
• CVE-2023-1079: Fixed a use-after-free problem that could have been triggered in asus_kbd_backlight_set when plugging/disconnecting a malicious USB device (bsc#1208604).
• CVE-2023-1095: Fixed a NULL pointer dereference in nf_tables due to zeroed list head (bsc#1208777).
• CVE-2023-1118: Fixed a use-after-free bugs caused by ene_tx_irqsim() in media/rc (bsc#1208837).
• CVE-2023-1249: Fixed a use-after-free flaw in the core dump subsystem that allowed a local user to crash the system (bsc#1209039).
• CVE-2023-1382: Fixed denial of service in tipc_conn_close (bsc#1209288).
• CVE-2023-1513: Fixed an uninitialized portions of the kvm_debugregs structure that could be copied to userspace, causing an information leak (bsc#1209532).
• CVE-2023-1582: Fixed soft lockup in __page_mapcount (bsc#1209636). -…

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits for pointer operations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33200)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly clear received fragments from memory in some situations. A physically proximate attacker could possibly use this issue to inject packets or expose sensitive information. (CVE-2020-24586)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled encrypted fragments. A physically proximate attacker could possibly use this issue to decrypt fragments. (CVE-2020-24587)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled certain malformed frames. If a user were tricked into connecting to a malicious server, a physically proximate attacker could use this issue to inject packets. (CVE-2020-24588)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel contained a reference counting error. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-25670)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly deallocate memory in certain error situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2020-25671, CVE-2020-25672)

Kiyin (尹亮) discovered that the NFC LLCP protocol implementation in the Linux kernel did not properly handle error conditions in some situations, leading to an infinite loop. A local attacker could use this to cause a denial of service. (CVE-2020-25673)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled EAPOL frames from unauthenticated senders. A physically proximate attacker could inject malicious packets to cause a denial of service (system crash). (CVE-2020-26139)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly verify certain fragmented frames. A physically proximate attacker could possibly use this issue to inject or decrypt packets. (CVE-2020-26141)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation accepted plaintext fragments in certain situations. A physically proximate attacker could use this issue to inject packets. (CVE-2020-26145)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147)

Or Cohen discovered that the SCTP implementation in the Linux kernel contained a race condition in some situations, leading to a use-after-free condition. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23133)

Piotr Krysiuk and Benedict Schlueter discovered that the eBPF implementation in the Linux kernel performed out of bounds speculation on pointer arithmetic. A local attacker could use this to expose sensitive information. (CVE-2021-29155)

Manfred Paul discovered that the extended Berkeley Packet Filter (eBPF) implementation in the Linux kernel contained an out-of-bounds vulnerability. A local attacker could use this issue to execute arbitrary code. (CVE-2021-31440)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly prevent speculative loads in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-31829)

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits for pointer operations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33200)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly clear received fragments from memory in some situations. A physically proximate attacker could possibly use this issue to inject packets or expose sensitive information. (CVE-2020-24586)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled encrypted fragments. A physically proximate attacker could possibly use this issue to decrypt fragments. (CVE-2020-24587)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled certain malformed frames. If a user were tricked into connecting to a malicious server, a physically proximate attacker could use this issue to inject packets. (CVE-2020-24588)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled EAPOL frames from unauthenticated senders. A physically proximate attacker could inject malicious packets to cause a denial of service (system crash). (CVE-2020-26139)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly verify certain fragmented frames. A physically proximate attacker could possibly use this issue to inject or decrypt packets. (CVE-2020-26141)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation accepted plaintext fragments in certain situations. A physically proximate attacker could use this issue to inject packets. (CVE-2020-26145)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147)

Or Cohen discovered that the SCTP implementation in the Linux kernel contained a race condition in some situations, leading to a use-after-free condition. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23133)

Or Cohen and Nadav Markus discovered a use-after-free vulnerability in the nfc implementation in the Linux kernel. A privileged local attacker could use this issue to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23134)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly prevent speculative loads in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-31829)

It was discovered that a race condition in the kernel Bluetooth subsystem could lead to use-after-free of slab objects. An attacker could use this issue to possibly execute arbitrary code. (CVE-2021-32399)

It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33034)

It was discovered that an out-of-bounds (OOB) memory access flaw existed in the f2fs module of the Linux kernel. A local attacker could use this issue to cause a denial of service (system crash). (CVE-2021-3506)

USN-5000-1 fixed vulnerabilities in the Linux kernel for Ubuntu 20.04 LTS and the Linux HWE kernel for Ubuntu 18.04 LTS. This update provides the corresponding updates for the Linux KVM kernel for Ubuntu 20.04 LTS.

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly enforce limits for pointer operations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33200)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly clear received fragments from memory in some situations. A physically proximate attacker could possibly use this issue to inject packets or expose sensitive information. (CVE-2020-24586)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled encrypted fragments. A physically proximate attacker could possibly use this issue to decrypt fragments. (CVE-2020-24587)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled certain malformed frames. If a user were tricked into connecting to a malicious server, a physically proximate attacker could use this issue to inject packets. (CVE-2020-24588)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled EAPOL frames from unauthenticated senders. A physically proximate attacker could inject malicious packets to cause a denial of service (system crash). (CVE-2020-26139)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly verify certain fragmented frames. A physically proximate attacker could possibly use this issue to inject or decrypt packets. (CVE-2020-26141)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation accepted plaintext fragments in certain situations. A physically proximate attacker could use this issue to inject packets. (CVE-2020-26145)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147)

Or Cohen discovered that the SCTP implementation in the Linux kernel contained a race condition in some situations, leading to a use-after-free condition. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23133)

Or Cohen and Nadav Markus discovered a use-after-free vulnerability in the nfc implementation in the Linux kernel. A privileged local attacker could use this issue to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23134)

Piotr Krysiuk discovered that the eBPF implementation in the Linux kernel did not properly prevent speculative loads in certain situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2021-31829)

It was discovered that a race condition in the kernel Bluetooth subsystem could lead to use-after-free of slab objects. An attacker could use this issue to possibly execute arbitrary code. (CVE-2021-32399)

It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33034)

It was discovered that an out-of-bounds (OOB) memory access flaw existed in the f2fs module of the Linux kernel. A local attacker could use this issue to cause a denial of service (system crash). (CVE-2021-3506)

Norbert Slusarek discovered a race condition in the CAN BCM networking protocol of the Linux kernel leading to multiple use-after-free vulnerabilities. A local attacker could use this issue to execute arbitrary code. (CVE-2021-3609)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly clear received fragments from memory in some situations. A physically proximate attacker could possibly use this issue to inject packets or expose sensitive information. (CVE-2020-24586)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled encrypted fragments. A physically proximate attacker could possibly use this issue to decrypt fragments. (CVE-2020-24587)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled certain malformed frames. If a user were tricked into connecting to a malicious server, a physically proximate attacker could use this issue to inject packets. (CVE-2020-24588)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation incorrectly handled EAPOL frames from unauthenticated senders. A physically proximate attacker could inject malicious packets to cause a denial of service (system crash). (CVE-2020-26139)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation did not properly verify certain fragmented frames. A physically proximate attacker could possibly use this issue to inject or decrypt packets. (CVE-2020-26141)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation accepted plaintext fragments in certain situations. A physically proximate attacker could use this issue to inject packets. (CVE-2020-26145)

Mathy Vanhoef discovered that the Linux kernel’s WiFi implementation could reassemble mixed encrypted and plaintext fragments. A physically proximate attacker could possibly use this issue to inject packets or exfiltrate selected fragments. (CVE-2020-26147)

Or Cohen discovered that the SCTP implementation in the Linux kernel contained a race condition in some situations, leading to a use-after-free condition. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23133)

Or Cohen and Nadav Markus discovered a use-after-free vulnerability in the nfc implementation in the Linux kernel. A privileged local attacker could use this issue to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-23134)

Manfred Paul discovered that the extended Berkeley Packet Filter (eBPF) implementation in the Linux kernel contained an out-of-bounds vulnerability. A local attacker could use this issue to execute arbitrary code. (CVE-2021-31440)

It was discovered that a race condition in the kernel Bluetooth subsystem could lead to use-after-free of slab objects. An attacker could use this issue to possibly execute arbitrary code. (CVE-2021-32399)

It was discovered that a use-after-free existed in the Bluetooth HCI driver of the Linux kernel. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-33034)

It was discovered that an out-of-bounds (OOB) memory access flaw existed in the f2fs module of the Linux kernel. A local attacker could use this issue to cause a denial of service (system crash). (CVE-2021-3506)

Mathias Krause discovered that a null pointer dereference existed in the Nitro Enclaves kernel driver of the Linux kernel. A local attacker could use this issue to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3543)