CVE-2021-38208

net/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call.

The Linux Kernel, the operating system core itself.

Security Fix(es):

A lack of CPU resource in the Linux kernel tracing module functionality in versions prior to 5.14-rc3 was found in the way user uses trace ring buffer in a specific way. Only privileged local users (with CAP_SYS_ADMIN capability) could use this flaw to starve the resources causing denial of service.(CVE-2021-3679)

drivers/usb/host/max3421-hcd.c in the Linux kernel before 5.13.6 allows physically proximate attackers to cause a denial of service (use-after-free and panic) by removing a MAX-3421 USB device in certain situations.(CVE-2021-38204)

drivers/net/ethernet/xilinx/xilinx_emaclite.c in the Linux kernel before 5.13.3 makes it easier for attackers to defeat an ASLR protection mechanism because it prints a kernel pointer (i.e., the real IOMEM pointer).(CVE-2021-38205)

net/netfilter/nf_conntrack_standalone.c in the Linux kernel before 5.12.2 allows observation of changes in any net namespace because these changes are leaked into all other net namespaces. This is related to the NF_SYSCTL_CT_MAX, NF_SYSCTL_CT_EXPECT_MAX, and NF_SYSCTL_CT_BUCKETS sysctls.(CVE-2021-38209)

fs/nfs/nfs4client.c in the Linux kernel before 5.13.4 has incorrect connection-setup ordering, which allows operators of remote NFSv4 servers to cause a denial of service (hanging of mounts) by arranging for those servers to be unreachable during trunking detection.(CVE-2021-38199)

drivers/net/ethernet/xilinx/ll_temac_main.c in the Linux kernel before 5.12.13 allows remote attackers to cause a denial of service (buffer overflow and lockup) by sending heavy network traffic for about ten minutes.(CVE-2021-38207)

net/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call.(CVE-2021-38208)

net/nfc/llcp_sock.c in the Linux kernel before 5.12.10 allows local unprivileged users to cause a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call.

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

The following security bugs were fixed:

• CVE-2018-7755: Fixed an issue in the fd_locked_ioctl function in drivers/block/floppy.c. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR (bnc#1084513).
• CVE-2019-20811: Fixed issue in rx_queue_add_kobject() and netdev_queue_add_kobject() in net/core/net-sysfs.c, where a reference count is mishandled (bnc#1172456).
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2021-43389: Fixed an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (bnc#1191958).
• CVE-2022-1011: Fixed a use-after-free flaw inside the FUSE filesystem in the way a user triggers write(). This flaw allowed a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation (bnc#1197343).
• CVE-2022-1280: Fixed a use-after-free vulnerability in drm_lease_held in drivers/gpu/drm/drm_lease.c (bnc#1197914).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c (bnc#1198516).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2022-23960: Fixed speculation issues in the Branch History Buffer that allowed an attacker to obtain sensitive information using cache allocation (bnc#1196657).
• CVE-2022-28748: Fixed memory lead over the network by ax88179_178a devices (bsc#1196018).

The following non-security bugs were fixed:

• IB/qib: Fix memory leak in qib_user_sdma_queue_pkts() (git-fixes)
• NFSD: prevent underflow in nfssvc_decode_writeargs() (git-fixes).
• NFSv4: recover from pre-mature loss of openstateid (bsc#1196247).
• NFSv4: Do not try to CLOSE if the stateid 'other' field has changed (bsc#1196247).
• NFSv4: Fix a regression in nfs_set_open_stateid_locked() (bsc#1196247).
• NFSv4: Handle NFS4ERR_OLD_STATEID in CLOSE/OPEN_DOWNGRADE (bsc#1196247).
• NFSv4: Wait for stateid updates after CLOSE/OPEN_DOWNGRADE (bsc#1196247).
• NFSv4: fix open failure with O_ACCMODE flag (git-fixes).
• PCI/switchtec: Read all 64 bits of part_event_bitmap (git-fixes).
• PCI: Add device even if driver attach failed (git-fixes).
• PCI: Fix overflow in command-line resource alignment requests (git-fixes).
• PCI: iproc: Fix out-of-bound array accesses (git-fixes).
• PCI: iproc: Set affinity mask on MSI interrupts (git-fixes).
• PCI: qcom: Change duplicate PCI reset to phy reset (git-fixes).
• PCI: qcom: Make sure PCIe is reset before init for rev 2.1.0 (git-fixes).
• RDMA/rxe: Missing unlock on error in get_srq_wqe() (git-fixes)
• RDMA/rxe: Restore setting tot_len in the IPv4 header (git-fixes)
• RDMA/rxe: Use the correct size of wqe when processing SRQ (git-fixes)
• SUNRPC: Handle low memory situations in call_status() (git-fixes).
• USB: Fix 'slab-out-of-bounds Write' bug in usb_hcd_poll_rh_status (git-fixes).
• USB: core: Fix bug in resuming hub's handling of wakeup requests (git-fixes).
• USB: serial: cp210x: add NCR Retail IO box id (git-fixes).
• USB: serial: pl2303: add IBM device IDs (git-fixes).
• USB: serial: simple: add Nokia phone driver (git-fixes).
• USB: usb-storage:…

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

The following security bugs were fixed:

• CVE-2022-28748: Fixed memory lead over the network by ax88179_178a devices (bsc#1196018).
• CVE-2022-28356: Fixed a refcount leak bug found in net/llc/af_llc.c (bnc#1197391).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c (bnc#1198516).
• CVE-2022-1280: Fixed a use-after-free vulnerability in drm_lease_held in drivers/gpu/drm/drm_lease.c (bnc#1197914).
• CVE-2022-1011: Fixed a use-after-free flaw inside the FUSE filesystem in the way a user triggers write(). This flaw allowed a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation (bnc#1197343).
• CVE-2021-43389: Fixed an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (bnc#1191958).
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2019-20811: Fixed issue in rx_queue_add_kobject() and netdev_queue_add_kobject() in net/core/net-sysfs.c, where a reference count is mishandled (bnc#1172456).
• CVE-2018-7755: Fixed an issue in the fd_locked_ioctl function in drivers/block/floppy.c. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR (bnc#1084513).

The following non-security bugs were fixed:

• IB/qib: Fix memory leak in qib_user_sdma_queue_pkts() (git-fixes)
• NFSD: prevent underflow in nfssvc_decode_writeargs() (git-fixes).
• NFSv4: Do not try to CLOSE if the stateid 'other' field has changed (bsc#1196247).
• NFSv4: Fix a regression in nfs_set_open_stateid_locked() (bsc#1196247).
• NFSv4: Handle NFS4ERR_OLD_STATEID in CLOSE/OPEN_DOWNGRADE (bsc#1196247).
• NFSv4: Wait for stateid updates after CLOSE/OPEN_DOWNGRADE (bsc#1196247).
• NFSv4: fix open failure with O_ACCMODE flag (git-fixes).
• NFSv4: recover from pre-mature loss of openstateid (bsc#1196247).
• PCI/switchtec: Read all 64 bits of part_event_bitmap (git-fixes).
• PCI: Add device even if driver attach failed (git-fixes).
• PCI: Do not enable AtomicOps on VFs (bsc#1129770)
• PCI: Fix overflow in command-line resource alignment requests (git-fixes).
• PCI: iproc: Fix out-of-bound array accesses (git-fixes).
• PCI: iproc: Set affinity mask on MSI interrupts (git-fixes).
• PCI: qcom: Change duplicate PCI reset to phy reset (git-fixes).
• PCI: qcom: Make sure PCIe is reset before init for rev 2.1.0 (git-fixes).
• RDMA/rxe: Missing unlock on error in get_srq_wqe() (git-fixes)
• RDMA/rxe: Restore setting tot_len in the IPv4 header (git-fixes)
• RDMA/rxe: Use the correct size of wqe when processing SRQ (git-fixes)
• SUNRPC: Handle low memory situations in call_status() (git-fixes).
• USB: Fix 'slab-out-of-bounds Write' bug in usb_hcd_poll_rh_status (git-fixes).
• USB: core: Fix bug in resuming hub's handling of wakeup requests (git-fixes).
• USB: serial: cp210x: add NCR Retail IO box id (git-fixes).
• USB: serial: pl2303: add IBM device IDs (git-fixes).
• USB: serial: simple: add Nokia phone driver (git-fixes).
• USB: usb-storage: Fix use of bitfields for…

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

The following security bugs were fixed:

• CVE-2022-29156: Fixed a double free related to rtrs_clt_dev_release (bnc#1198515).
• CVE-2022-28893: Ensuring that sockets are in the intended state inside the SUNRPC subsystem (bnc#1198330).
• CVE-2022-28748: Fixed memory lead over the network by ax88179_178a devices (bsc#1196018).
• CVE-2022-28356: Fixed a refcount leak bug found in net/llc/af_llc.c (bnc#1197391).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c (bnc#1198516).
• CVE-2022-1280: Fixed a use-after-free vulnerability in drm_lease_held in drivers/gpu/drm/drm_lease.c (bnc#1197914).
• CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the user address (bsc#1197660).
• CVE-2022-0812: Fixed random memory leakage inside NFS/RDMA (bsc#1196639).
• CVE-2021-4154: Fixed a use-after-free flaw inside cgroup1_parse_param in kernel/cgroup/cgroup-v1.c. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system (bnc#1193842).
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2021-0707: Fixed possible memory corruption due to a use after free inside dma_buf_releas e of dma-buf.c (bnc#1198437).
• CVE-2020-27835: Fixed use after free in infiniband hfi1 driver in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878).

The following non-security bugs were fixed:

• ACPI: processor idle: Check for architectural support for LPI (git-fixes).
• ACPI/APEI: Limit printable size of BERT table data (git-fixes).
• ACPICA: Avoid walking the ACPI Namespace if it is not there (git-fixes).
• adm8211: fix error return code in adm8211_probe() (git-fixes).
• ALSA: cs4236: fix an incorrect NULL check on list iterator (git-fixes).
• ALSA: hda/hdmi: fix warning about PCM count when used with SOF (git-fixes).
• ALSA: hda/realtek: Add alc256-samsung-headphone fixup (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PD50PNT (git-fixes).
• ALSA: hda/realtek: Fix audio regression on Mi Notebook Pro 2020 (git-fixes).
• ALSA: pcm: Test for 'silence' field in struct 'pcm_format_data' (git-fixes).
• ALSA: usb-audio: Cap upper limits of buffer/period bytes for implicit fb (git-fixes).
• ALSA: usb-audio: Increase max buffer size (git-fixes).
• ALSA: usb-audio: Limit max buffer and period sizes per time (git-fixes).
• arm64: clear_page() shouldn't use DC ZVA when DCZID_EL0.DZP == 1 (git-fixes)
• arm64: dts: allwinner: h5: NanoPI Neo 2: Fix ethernet node (git-fixes)
• arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode (git-fixes)
• arm64: dts: exynos: correct GIC CPU interfaces address range on (git-fixes)
• arm64: dts: ls1028a: fix memory node (git-fixes)
• arm64: dts: ls1028a: fix node name for the sysclk (git-fixes)
• arm64: dts: lx2160a: fix scl-gpios property name (git-fixes)
• arm64: dts: marvell: armada-37xx: Extend PCIe MEM space (git-fixes)
• arm64: dts: marvell: armada-37xx: Fix reg for standard variant of (git-fixes)
• arm64: dts: marvell: armada-37xx: Remap IO space to bus address 0x0 (git-fixes)
• arm64: dts: rockchip: Fix…

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

The following security bugs were fixed:

• CVE-2020-27835: Fixed a use after free vulnerability in infiniband hfi1 driver in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878).
• CVE-2021-0707: Fixed a use after free vulnerability in dma_buf_release of dma-buf.c, which may lead to local escalation of privilege with no additional execution privileges needed (bnc#1198437).
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2021-4154: Fixed a use-after-free vulnerability in cgroup1_parse_param in kernel/cgroup/cgroup-v1.c, allowing a local privilege escalation by an attacker with user privileges by exploiting the fsconfig syscall parameter, leading to a container breakout and a denial of service on the system (bnc#1193842).
• CVE-2022-0812: Fixed information leak when a file is read from RDMA (bsc#1196639)
• CVE-2022-1158: Fixed a vulnerability in the kvm module that may lead to a use-after-free write or denial of service (bsc#1197660).
• CVE-2022-1280: Fixed a use-after-free vulnerability in drm_lease_held in drivers/gpu/drm/drm_lease.c (bnc#1197914).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c (bnc#1198516).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2022-28356: Fixed a refcount leak bug in net/llc/af_llc.c (bnc#1197391).
• CVE-2022-28748: Fixed memory lead over the network by ax88179_178a devices (bsc#1196018).
• CVE-2022-28893: Fixed a use after free vulnerability in inet_put_port where some sockets are not closed before xs_xprt_free() (bsc#1198330).
• CVE-2022-29156: Fixed a double free vulnerability related to rtrs_clt_dev_release.ate (jsc#SLE-15176 bsc#1198515).

The following non-security bugs were fixed:

• ACPI/APEI: Limit printable size of BERT table data (git-fixes).
• ACPI: processor idle: Check for architectural support for LPI (git-fixes).
• ACPICA: Avoid walking the ACPI Namespace if it is not there (git-fixes).
• ALSA: cs4236: fix an incorrect NULL check on list iterator (git-fixes).
• ALSA: hda/hdmi: fix warning about PCM count when used with SOF (git-fixes).
• ALSA: hda/realtek: Add alc256-samsung-headphone fixup (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PD50PNT (git-fixes).
• ALSA: hda/realtek: Fix audio regression on Mi Notebook Pro 2020 (git-fixes).
• ALSA: pcm: Test for 'silence' field in struct 'pcm_format_data' (git-fixes).
• ALSA: usb-audio: Cap upper limits of buffer/period bytes for implicit fb (git-fixes).
• ALSA: usb-audio: Increase max buffer size (git-fixes).
• ALSA: usb-audio: Limit max buffer and period sizes per time (git-fixes).
• ASoC: atmel: Remove system clock tree configuration for at91sam9g20ek (git-fixes).
• ASoC: codecs: wcd934x: do not switch off SIDO Buck when codec is in use (git-fixes).
• ASoC: mediatek: mt6358: add missing EXPORT_SYMBOLs (git-fixes).
• ASoC: msm8916-wcd-digital: Check failure for devm_snd_soc_register_component (git-fixes).
• ASoC: soc-compress: Change the check for codec_dai (git-fixes).
• ASoC: soc-compress: prevent the potentially use of null pointer (git-fixes).
• ASoC: soc-core: skip zero num_dai component in searching dai name (git-fixes).
• ASoC: soc-dapm: fix two incorrect uses of list iterator…

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

The following security bugs were fixed:

• CVE-2022-28748: Fixed memory lead over the network by ax88179_178a devices (bsc#1196018).
• CVE-2022-28356: Fixed a refcount leak bug found in net/llc/af_llc.c (bnc#1197391).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c (bnc#1198516).
• CVE-2022-1280: Fixed a use-after-free vulnerability in drm_lease_held in drivers/gpu/drm/drm_lease.c (bnc#1197914).
• CVE-2022-1011: Fixed a use-after-free flaw inside the FUSE filesystem in the way a user triggers write(). This flaw allowed a local user to gain unauthorized access to data from the FUSE filesystem, resulting in privilege escalation (bnc#1197343).
• CVE-2021-43389: Fixed an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (bnc#1191958).
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2019-20811: Fixed issue in rx_queue_add_kobject() and netdev_queue_add_kobject() in net/core/net-sysfs.c, where a reference count is mishandled (bnc#1172456).
• CVE-2018-7755: Fixed an issue in the fd_locked_ioctl function in drivers/block/floppy.c. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR (bnc#1084513).

The following non-security bugs were fixed:

• IB/qib: Fix memory leak in qib_user_sdma_queue_pkts() (git-fixes)
• NFSD: prevent underflow in nfssvc_decode_writeargs() (git-fixes).
• NFSv4: recover from pre-mature loss of openstateid (bsc#1196247).
• NFSv4: Do not try to CLOSE if the stateid 'other' field has changed (bsc#1196247).
• NFSv4: Fix a regression in nfs_set_open_stateid_locked() (bsc#1196247).
• NFSv4: Handle NFS4ERR_OLD_STATEID in CLOSE/OPEN_DOWNGRADE (bsc#1196247).
• NFSv4: Wait for stateid updates after CLOSE/OPEN_DOWNGRADE (bsc#1196247).
• NFSv4: fix open failure with O_ACCMODE flag (git-fixes).
• PCI/switchtec: Read all 64 bits of part_event_bitmap (git-fixes).
• PCI: Add device even if driver attach failed (git-fixes).
• PCI: Fix overflow in command-line resource alignment requests (git-fixes).
• PCI: iproc: Fix out-of-bound array accesses (git-fixes).
• PCI: iproc: Set affinity mask on MSI interrupts (git-fixes).
• PCI: qcom: Change duplicate PCI reset to phy reset (git-fixes).
• PCI: qcom: Make sure PCIe is reset before init for rev 2.1.0 (git-fixes).
• RDMA/rxe: Missing unlock on error in get_srq_wqe() (git-fixes)
• RDMA/rxe: Restore setting tot_len in the IPv4 header (git-fixes)
• RDMA/rxe: Use the correct size of wqe when processing SRQ (git-fixes)
• SUNRPC: Handle low memory situations in call_status() (git-fixes).
• USB: Fix 'slab-out-of-bounds Write' bug in usb_hcd_poll_rh_status (git-fixes).
• USB: core: Fix bug in resuming hub's handling of wakeup requests (git-fixes).
• USB: serial: cp210x: add NCR Retail IO box id (git-fixes).
• USB: serial: pl2303: add IBM device IDs (git-fixes).
• USB: serial: simple: add Nokia phone driver (git-fixes).
• USB: usb-storage: Fix use of bitfields for hardware data in ene_ub6250.c (git-fixes).
• arm64:…

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

The following security bugs were fixed:

• CVE-2022-29156: Fixed a double free related to rtrs_clt_dev_release (bnc#1198515).
• CVE-2022-28893: Ensuring that sockets are in the intended state inside the SUNRPC subsystem (bnc#1198330).
• CVE-2022-28748: Fixed memory lead over the network by ax88179_178a devices (bsc#1196018).
• CVE-2022-28356: Fixed a refcount leak bug found in net/llc/af_llc.c (bnc#1197391).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c (bnc#1198516).
• CVE-2022-1280: Fixed a use-after-free vulnerability in drm_lease_held in drivers/gpu/drm/drm_lease.c (bnc#1197914).
• CVE-2022-1158: Fixed KVM x86/mmu compare-and-exchange of gPTE via the user address (bsc#1197660).
• CVE-2022-0812: Fixed random memory leakage inside NFS/RDMA (bsc#1196639).
• CVE-2021-4154: Fixed a use-after-free flaw inside cgroup1_parse_param in kernel/cgroup/cgroup-v1.c. A local attacker with a user privilege could cause a privilege escalation by exploiting the fsconfig syscall parameter leading to a container breakout and a denial of service on the system (bnc#1193842).
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2021-0707: Fixed possible memory corruption due to a use after free inside dma_buf_releas e of dma-buf.c (bnc#1198437).
• CVE-2020-27835: Fixed use after free in infiniband hfi1 driver in the way user calls Ioctl after open dev file and fork. A local user could use this flaw to crash the system (bnc#1179878).

The following non-security bugs were fixed:

• ACPI: processor idle: Check for architectural support for LPI (git-fixes).
• ACPI/APEI: Limit printable size of BERT table data (git-fixes).
• ACPICA: Avoid walking the ACPI Namespace if it is not there (git-fixes).
• adm8211: fix error return code in adm8211_probe() (git-fixes).
• ALSA: cs4236: fix an incorrect NULL check on list iterator (git-fixes).
• ALSA: hda/hdmi: fix warning about PCM count when used with SOF (git-fixes).
• ALSA: hda/realtek: Add alc256-samsung-headphone fixup (git-fixes).
• ALSA: hda/realtek: Add quirk for Clevo PD50PNT (git-fixes).
• ALSA: hda/realtek: Fix audio regression on Mi Notebook Pro 2020 (git-fixes).
• ALSA: pcm: Test for 'silence' field in struct 'pcm_format_data' (git-fixes).
• ALSA: usb-audio: Cap upper limits of buffer/period bytes for implicit fb (git-fixes).
• ALSA: usb-audio: Increase max buffer size (git-fixes).
• ALSA: usb-audio: Limit max buffer and period sizes per time (git-fixes).
• arm64: clear_page() shouldn't use DC ZVA when DCZID_EL0.DZP == 1 (git-fixes)
• arm64: dts: allwinner: h5: NanoPI Neo 2: Fix ethernet node (git-fixes)
• arm64: dts: allwinner: orangepi-zero-plus: fix PHY mode (git-fixes)
• arm64: dts: exynos: correct GIC CPU interfaces address range on (git-fixes)
• arm64: dts: ls1028a: fix memory node (git-fixes)
• arm64: dts: ls1028a: fix node name for the sysclk (git-fixes)
• arm64: dts: lx2160a: fix scl-gpios property name (git-fixes)
• arm64: dts: marvell: armada-37xx: Extend PCIe MEM space (git-fixes)
• arm64: dts: marvell: armada-37xx: Fix reg for standard variant of (git-fixes)
• arm64: dts: marvell: armada-37xx: Remap IO space to bus address 0x0 (git-fixes)
• arm64: dts: rockchip: Fix GPU…

The SUSE Linux Enterprise 12 SP2 kernel was updated.

The following security bugs were fixed:

• CVE-2022-28390: Fixed a double free in drivers/net/can/usb/ems_usb.c vulnerability in the Linux kernel (bnc#1198031).
• CVE-2022-28388: Fixed a double free in drivers/net/can/usb/usb_8dev.c vulnerability in the Linux kernel (bnc#1198032).
• CVE-2018-20784: Fixed a denial of service (infinite loop in update_blocked_averages) by mishandled leaf cfs_rq in kernel/sched/fair.c (bnc#1126703).
• CVE-2018-7755: Fixed an issue in the fd_locked_ioctl function in drivers/block/floppy.c. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR (bnc#1084513).
• CVE-2020-10769: Fixed a buffer over-read flaw in the IPsec Cryptographic algorithm's module. This flaw allowed a local attacker with user privileges to cause a denial of service. (bnc#1173265)
• CVE-2021-28688: Fixed XSA-365 that includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains (bnc#1183646).
• CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21123: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21125: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21180: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21166: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-1975: Fixed a bug that allows an attacker to crash the linux kernel by simulating nfc device from user-space. (bsc#1200143)
• CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by simulating an nfc device from user-space. (bsc#1200144)
• CVE-2019-19377: Fixed an user-after-free that could be triggered when an attacker mounts a crafted btrfs filesystem image. (bnc#1158266)
• CVE-2022-1184: Fixed an use-after-free and memory errors in ext4 when mounting and operating on a corrupted image. (bsc#1198577)
• CVE-2017-13695: Fixed a bug that caused a stack dump allowing local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted ACPI table. (bnc#1055710)
• CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507).
• CVE-2022-21499: Reinforce the kernel lockdown feature, until now it's been trivial to break out of it with kgdb or kdb. (bsc#1199426)
• CVE-2022-1652: Fixed a statically allocated error counter inside the floppy kernel module (bsc#1199063).
• CVE-2022-1734: Fixed a r/w use-after-free when non synchronized between cleanup routine and firmware download routine. (bnc#1199605)
• CVE-2022-30594: Fixed restriction bypass on setting the PT_SUSPEND_SECCOMP flag (bnc#1199505).
• CVE-2021-33061: Fixed insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters that may have allowed an authenticated user to potentially enable denial of service via local access (bnc#1196426).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2021-20321: Fixed…

The SUSE Linux Enterprise 12 SP3 kernel was updated to 3.12.31 to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21123: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21125: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21180: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21166: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-1975: Fixed a bug that allows an attacker to crash the linux kernel by simulating nfc device from user-space. (bsc#1200143)
• CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by simulating an nfc device from user-space. (bsc#1200144)
• CVE-2019-19377: Fixed an user-after-free that could be triggered when an attacker mounts a crafted btrfs filesystem image. (bnc#1158266)
• CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507).
• CVE-2022-1184: Fixed an use-after-free and memory errors in ext4 when mounting and operating on a corrupted image. (bsc#1198577)
• CVE-2022-21499: Reinforce the kernel lockdown feature, until now it's been trivial to break out of it with kgdb or kdb. (bsc#1199426)
• CVE-2017-13695: Fixed a bug that caused a stack dump allowing local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted ACPI table. (bnc#1055710)
• CVE-2022-1652: Fixed a statically allocated error counter inside the floppy kernel module (bsc#1199063).
• CVE-2022-1734: Fixed a r/w use-after-free when non synchronized between cleanup routine and firmware download routine. (bnc#1199605)
• CVE-2022-30594: Fixed restriction bypass on setting the PT_SUSPEND_SECCOMP flag (bnc#1199505).
• CVE-2021-28688: Fixed XSA-365 that includes initialization of pointers such that subsequent cleanup code wouldn't use uninitialized or stale values. This initialization went too far and may under certain conditions also overwrite pointers which are in need of cleaning up. The lack of cleanup would result in leaking persistent grants. The leak in turn would prevent fully cleaning up after a respective guest has died, leaving around zombie domains (bnc#1183646).
• CVE-2020-10769: Fixed a buffer over-read flaw in the IPsec Cryptographic algorithm's module. This flaw allowed a local attacker with user privileges to cause a denial of service. (bnc#1173265)
• CVE-2021-33061: Fixed insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters that may have allowed an authenticated user to potentially enable denial of service via local access (bnc#1196426).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2018-7755: Fixed an issue in the fd_locked_ioctl function in drivers/block/floppy.c. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR (bnc#1084513).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2021-38208: Fixed a denial of service (NULL…

The SUSE Linux Enterprise 12 SP4 kernel was updated.

The following security bugs were fixed:

• CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21123: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21125: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21180: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21166: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-1652: Fixed a statically allocated error counter inside the floppy kernel module (bsc#1199063).
• CVE-2022-1734: Fixed a r/w use-after-free when non synchronized between cleanup routine and firmware download routine. (bnc#1199605)
• CVE-2021-39711: Fixed a possible out of bounds read due to Incorrect Size Value. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1197219).
• CVE-2022-30594: Fixed restriction bypass on setting the PT_SUSPEND_SECCOMP flag (bnc#1199505).
• CVE-2021-33061: Fixed insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters that may have allowed an authenticated user to potentially enable denial of service via local access (bnc#1196426).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2021-43389: Fixed an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (bnc#1191958).
• CVE-2019-20811: Fixed issue in rx_queue_add_kobject() and netdev_queue_add_kobject() in net/core/net-sysfs.c, where a reference count is mishandled (bnc#1172456).
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c. (bnc#1198516)
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2022-1011: Fixed an use-after-free vulnerability which could allow a local attacker to retireve (partial) /etc/shadow hashes or any other data from filesystem when he can mount a FUSE filesystems. (bnc#1197343)

The following non-security bugs were fixed:

• btrfs: relocation: Only remove reloc rb_trees if reloc control has been initialized (bsc#1199399).
• btrfs: relocation: Only remove reloc rb_trees if reloc control has been initialized (bsc#1199399).
• debug: Lock down kgdb (bsc#1199426).
• dimlib: make DIMLIB a hidden symbol (bsc#1197099 jsc#SLE-24124).
• lib/dim: Fix -Wunused-const-variable warnings (bsc#1197099 jsc#SLE-24124).
• lib/dim: fix help text typos (bsc#1197099 jsc#SLE-24124).
• linux/dim: Add completions count to dim_sample (bsc#1197099 jsc#SLE-24124).
• linux/dim: Fix overflow in dim calculation (bsc#1197099 jsc#SLE-24124).
• linux/dim: Implement RDMA adaptive moderation (DIM) (bsc#1197099 jsc#SLE-24124).
• linux/dim: Move implementation to .c files (bsc#1197099 jsc#SLE-24124).
• linux/dim: Move logic to dim.h (bsc#1197099 jsc#SLE-24124).
• linux/dim: Remove 'net' prefix from internal DIM…

The SUSE Linux Enterprise 15 kernel was updated.

The following security bugs were fixed:

• CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21123: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21125: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21180: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21166: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2019-19377: Fixed an user-after-free that could be triggered when an attacker mounts a crafted btrfs filesystem image. (bnc#1158266)
• CVE-2022-1184: Fixed an use-after-free and memory errors in ext4 when mounting and operating on a corrupted image. (bsc#1198577)
• CVE-2017-13695: Fixed a bug that caused a stack dump allowing local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted ACPI table. (bnc#1055710)
• CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507).
• CVE-2022-1652: Fixed a statically allocated error counter inside the floppy kernel module (bsc#1199063).
• CVE-2021-39711: In bpf_prog_test_run_skb of test_run.c, there is a possible out of bounds read due to Incorrect Size Value. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1197219).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2021-43389: Fixed an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c. (bnc#1191958)
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c. (bnc#1198516)
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2022-1011: Fixed an use-after-free vulnerability which could allow a local attacker to retireve (partial) /etc/shadow hashes or any other data from filesystem when he can mount a FUSE filesystems. (bnc#1197343)
• CVE-2022-1974: Fixed an use-after-free that could causes kernel crash by simulating an nfc device from user-space. (bsc#1200144)
• CVE-2022-1975: Fixed a bug that allows an attacker to crash the linux kernel by simulating nfc device from user-space. (bsc#1200143)
• CVE-2022-21499: Reinforce the kernel lockdown feature, until now it's been trivial to break out of it with kgdb or kdb. (bsc#1199426)
• CVE-2022-1734: Fixed a r/w use-after-free when non synchronized between cleanup routine and firmware download routine. (bnc#1199605)
• CVE-2022-30594: Fixed restriction bypass on setting the PT_SUSPEND_SECCOMP flag (bnc#1199505).
• CVE-2021-33061: Fixed insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters that may have allowed an authenticated user to potentially enable denial of service via local access (bnc#1196426).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2019-20811: Fixed issue in rx_queue_add_kobject() and…

The SUSE Linux Enterprise 15 SP1 kernel was updated.

The following security bugs were fixed:

• CVE-2022-21127: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21123: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21125: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21180: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2022-21166: Fixed a stale MMIO data transient which can be exploited to speculatively/transiently disclose information via spectre like attacks. (bsc#1199650)
• CVE-2019-19377: Fixed an user-after-free that could be triggered when an attacker mounts a crafted btrfs filesystem image. (bnc#1158266)
• CVE-2022-1184: Fixed an use-after-free and memory errors in ext4 when mounting and operating on a corrupted image. (bsc#1198577)
• CVE-2017-13695: Fixed a bug that caused a stack dump allowing local users to obtain sensitive information from kernel memory and bypass the KASLR protection mechanism via a crafted ACPI table. (bnc#1055710)
• CVE-2022-1729: Fixed a sys_perf_event_open() race condition against self (bsc#1199507).
• CVE-2022-1652: Fixed a statically allocated error counter inside the floppy kernel module (bsc#1199063).
• CVE-2021-39711: In bpf_prog_test_run_skb of test_run.c, there is a possible out of bounds read due to Incorrect Size Value. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1197219).
• CVE-2022-30594: Fixed restriction bypass on setting the PT_SUSPEND_SECCOMP flag (bnc#1199505).
• CVE-2021-33061: Fixed insufficient control flow management for the Intel(R) 82599 Ethernet Controllers and Adapters that may have allowed an authenticated user to potentially enable denial of service via local access (bnc#1196426).
• CVE-2022-1516: Fixed null-ptr-deref caused by x25_disconnect (bsc#1199012).
• CVE-2021-20321: Fixed a race condition accessing file object in the OverlayFS subsystem in the way users do rename in specific way with OverlayFS. A local user could have used this flaw to crash the system (bnc#1191647).
• CVE-2019-20811: Fixed issue in rx_queue_add_kobject() and netdev_queue_add_kobject() in net/core/net-sysfs.c, where a reference count is mishandled (bnc#1172456).
• CVE-2022-28748: Fixed memory lead over the network by ax88179_178a devices (bsc#1196018).
• CVE-2018-7755: Fixed an issue in the fd_locked_ioctl function in drivers/block/floppy.c. The floppy driver will copy a kernel pointer to user memory in response to the FDGETPRM ioctl. An attacker can send the FDGETPRM ioctl and use the obtained kernel pointer to discover the location of kernel code and data and bypass kernel security protections such as KASLR (bnc#1084513).
• CVE-2022-22942: Fixed stale file descriptors on failed usercopy (bsc#1195065).
• CVE-2022-1419: Fixed a concurrency use-after-free in vgem_gem_dumb_create (bsc#1198742).
• CVE-2021-43389: Fixed an array-index-out-of-bounds flaw in the detach_capi_ctr function in drivers/isdn/capi/kcapi.c (bnc#1191958).
• CVE-2021-38208: Fixed a denial of service (NULL pointer dereference and BUG) by making a getsockname call after a certain type of failure of a bind call (bnc#1187055).
• CVE-2022-1353: Fixed access controll to kernel memory in the pfkey_register function in net/key/af_key.c (bnc#1198516).
• CVE-2021-20292: Fixed object validation prior to performing operations on the object in nouveau_sgdma_create_ttm in Nouveau DRM subsystem (bnc#1183723).
• CVE-2022-1011: Fixed an use-after-free vulnerability which could allow a local attacker to retireve…

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)

Michael Brown discovered that the Xen netback driver in the Linux kernel did not properly handle malformed packets from a network PV frontend, leading to a use-after-free vulnerability. An attacker in a guest VM could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-28691)

It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device initialization failure, leading to a double-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3564)

It was discovered that the bluetooth subsystem in the Linux kernel did not properly handle HCI device detach events, leading to a use-after-free vulnerability. An attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2021-3573)

It was discovered that the NFC implementation in the Linux kernel did not properly handle failed connect events leading to a NULL pointer dereference. A local attacker could use this to cause a denial of service. (CVE-2021-38208)

Yiqi Sun and Kevin Wang discovered that the cgroups implementation in the Linux kernel did not properly restrict access to the cgroups v1 release_agent feature. A local attacker could use this to gain administrative privileges. (CVE-2022-0492)

It was discovered that the aufs file system in the Linux kernel did not properly restrict mount namespaces, when mounted with the non-default allow_userns option set. A local attacker could use this to gain administrative privileges. (CVE-2016-2853)

It was discovered that the aufs file system in the Linux kernel did not properly maintain POSIX ACL xattr data, when mounted with the non-default allow_userns option. A local attacker could possibly use this to gain elevated privileges. (CVE-2016-2854)

It was discovered that the f2fs file system in the Linux kernel did not properly validate metadata in some situations. An attacker could use this to construct a malicious f2fs image that, when mounted and operated on, could cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-19449)

It was discovered that the XFS file system implementation in the Linux kernel did not properly validate meta data in some circumstances. An attacker could use this to construct a malicious XFS image that, when mounted, could cause a denial of service. (CVE-2020-12655)

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 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)

It was discovered that the BR/EDR pin-code pairing procedure in the Linux kernel was vulnerable to an impersonation attack. A physically proximate attacker could possibly use this to pair to a device without knowledge of the pin-code. (CVE-2020-26555)

It was discovered that the bluetooth subsystem in the Linux kernel did not properly perform access control. An authenticated attacker could possibly use this to expose sensitive information. (CVE-2020-26558, CVE-2021-0129)

It was discovered that the FUSE user space file system implementation in the Linux kernel did not properly handle bad inodes in some situations. A local attacker could possibly use this to cause a denial of service. (CVE-2020-36322)

It was discovered that the Infiniband RDMA userspace connection manager implementation in the Linux kernel contained a race condition leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possible execute arbitrary code. (CVE-2020-36385)

It was discovered that the DRM subsystem in the Linux kernel contained double-free vulnerabilities. A privileged attacker could possibly use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-20292)

It was discovered that a race condition existed in the timer implementation in the Linux kernel. A privileged attacker could use…