CVE-2021-22555

The Linux Kernel, the operating system core itself.

Security Fix(es):

there was a null pointer dereference in llcp_sock_getname in net/nfc/llcp_sock.c and reproduced it in linux-5.13.0-rc2. An unprivileged user can trigger this bug and cause denial of service. #Root Cause After creating an nfc socket, bind the address by calling bind(), if LLCP_SAP_MAX was used as SAP, it cause the bind() failed and there would set llcp_sock->service_name as NULL. Although bind() returns an error here, it does not affect calling other socket functions. sock_getname() would invoke llcp_sock_getname(), llcp_sock_getname copied service name from llcp_sock->service_name by memcpy but llcp_sock->service_name is NULL. #Fix the patch for this issue: https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/commit/?id=4ac06a1e013c(CVE-2021-3587)

An issue was discovered in the Linux kernel before 5.10. 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.(CVE-2020-36385)

The vgacon subsystem in the Linux kernel before 5.8.10 mishandles software scrollback. There is a vgacon_scrolldelta out-of-bounds read, aka CID-973c096f6a85.(CVE-2020-28097)

In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, 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.(CVE-2021-33624)

kernel/module.c in the Linux kernel before 5.12.14 mishandles Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, does not occur for a module.sig_enforce=1 command-line argument.(CVE-2021-35039)

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space(CVE-2021-22555)

A flaw use-after-free in function hci_sock_bound_ioctl() of the Linux kernel HCI subsystem was found in the way user detaches bluetooth dongle or other way triggers unregister bluetooth device event. A local user could use this flaw to crash the system or escalate their privileges on the system.(CVE-2021-3573)

Improper access control in BlueZ may allow an authenticated user to potentially enable information disclosure via adjacent access.(CVE-2021-0129)

net/can/bcm.c in the Linux kernel through 5.12.10 allows local users to obtain sensitive information from kernel stack memory because parts of a data structure are uninitialized.(CVE-2021-34693)

An issue was discovered in the Linux kernel before 5.8.2. fs/io_uring.c has a use-after-free related to io_async_task_func and ctx reference holding, aka CID-6d816e088c35.(CVE-2020-36387)

A flaw was found in the CAN BCM networking protocol in the Linux kernel, where a local attacker can abuse a flaw in the CAN subsystem to corrupt memory, crash the system or escalate privileges.(CVE-2021-3609)

It was discovered that the eBPF implementation in the Linux kernel did not properly track bounds information for 32 bit registers when performing div and mod operations. A local attacker could use this to possibly execute arbitrary code.(CVE-2021-3600)

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

Security Fix(es):

• kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)

• kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)

• kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Urgent: Missing dptf_power.ko module in Rocky Linux8 (BZ#1968381)

• [mlx5] kdump over NFS fails: mlx5 driver gives error "Stop room 95 is bigger than the SQ size 64" (BZ#1969909)

• BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 in bluetooth hci_error_reset on intel-tigerlake-h01 (BZ#1972564)

• Update CIFS to kernel 5.10 (BZ#1973637)

• Backport "tick/nohz: Conditionally restart tick on idle exit" to Rocky Linux 8.5 (BZ#1978710)

• Significant performance drop starting on kernel-4.18.0-277 visible on mmap benchmark (BZ#1980314)

• Inaccessible NFS server overloads clients (native_queued_spin_lock_slowpath connotation?) (BZ#1980613)

• [Rocky Linux8.4 BUG],RialtoMLK, I915 graphic driver failed to boot with one new 120HZ panel (BZ#1981250)

• act_ct: subject to DNAT tuple collision (BZ#1982494)

Enhancement(s):

• [Lenovo 8.5 FEAT] drivers/nvme - Update to the latest upstream (BZ#1965415)

The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

• kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)

• kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)

• kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• kernel-rt: update RT source tree to the Rocky Linux-8.4.z source tree (BZ#1985050)

• kernel-rt: Merge mm/memcg: Fix kmem_cache_alloc() performance regression (BZ#1987102)

A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c. This allows an attacker to gain privileges or cause a DoS (via heap memory corruption) through user name space

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

Security Fix(es):

• kernel: race condition in net/can/bcm.c leads to local privilege escalation (CVE-2021-3609)

• kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)

• kernel: out-of-bounds write in xt_compat_target_from_user() in net/netfilter/x_tables.c (CVE-2021-22555)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Bug Fix(es):

• Urgent: Missing dptf_power.ko module in AlmaLinux8 (BZ#1968381)

• [mlx5] kdump over NFS fails: mlx5 driver gives error "Stop room 95 is bigger than the SQ size 64" (BZ#1969909)

• BUG: unable to handle kernel NULL pointer dereference at 0000000000000000 in bluetooth hci_error_reset on intel-tigerlake-h01 (BZ#1972564)

• Update CIFS to kernel 5.10 (BZ#1973637)

• Backport "tick/nohz: Conditionally restart tick on idle exit" to AlmaLinux 8.5 (BZ#1978710)

• Significant performance drop starting on kernel-4.18.0-277 visible on mmap benchmark (BZ#1980314)

• Inaccessible NFS server overloads clients (native_queued_spin_lock_slowpath connotation?) (BZ#1980613)

• [AlmaLinux8.4 BUG],RialtoMLK, I915 graphic driver failed to boot with one new 120HZ panel (BZ#1981250)

• act_ct: subject to DNAT tuple collision (BZ#1982494)

Enhancement(s):

• [Lenovo 8.5 FEAT] drivers/nvme - Update to the latest upstream (BZ#1965415)

• ELS-130: CVE-2021-22555: netfilter: x_tables: fix compat match/target pad out-of-bound write

• ELS-130: CVE-2021-22555: netfilter: x_tables: fix compat match/target pad out-of-bound write

• ELS-138: netfilter: x_tables: add missing tables zeroing
• ELS-138: CVE-2021-33909: seq_file: disallow extremely large seq buffer allocation
• ELS-138: CVE-2021-22555: netfilter: x_tables: fix compat match/target pad out-of-bound write
• ELS-138: CVE-2020-29661: tty: Fix ->pgrp locking in tiocspgrp()
• ELS-138: CVE-2020-25656: vt: keyboard, extend func_buf_lock to readers
• ELS-138: CVE-2020-25656: tty/vt: fix write/write race in ioctl(KDSKBSENT) handler
• ELS-138: CVE-2020-25656: vt: keyboard, simplify vt_kdgkbsent
• ELS-138: CVE-2020-25211: netfilter: ctnetlink: add a range check for l3/l4 protonum
• ELS-138: CKSIX-276: CVE-2019-19532: HID: Fix assumption that devices have inputs
• ELS-138: CVE-2021-27365: scsi: iscsi: Ensure sysfs attributes are limited to PAGE_SIZE
• ELS-138: CVE-2021-27365: scsi: iscsi: Verify lengths on passthrough PDUs
• ELS-138: CVE-2021-27363: CVE-2021-27364: scsi: iscsi: Restrict sessions and handles to admin capabilities
• ELS-138: sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output
• ELS-138: USB: hso: Fix OOB memory access in hso_probe/hso_get_config_data
• ELS-138: CVE-2019-14615: drm/i915/gen9: Clear residual context state on context switch
• ELS-138: CVE-2020-8647, CVE-2020-8649: vgacon: Fix a UAF in vgacon_invert_region
• ELS-138: CVE-2020-14331: vgacon: Fix for missing check in scrollback handling
• ELS-138: CVE-2021-3347: futex: Handle faults correctly for PI futexes
• ELS-138: CVE-2021-3347: futex: Provide and use pi_state_update_owner()
• ELS-138: KEYS: allow reaching the keys quotas exactly
• ELS-138: KEYS: reaching the keys quotas correctly
• ELS-138: fix -ENOMEM result with invalid user space pointer in sendto() syscall
• ELS-138: CVE-2017-18344: posix-timer: Properly check sigevent->sigev_notify
• ELS-138: CVE-2018-6927: futex: Prevent overflow by strengthen input validation
• ELS-138: CVE-2017-6951: KEYS: Change the name of the dead type to ".dead" to prevent user access
• ELS-138: CVE-2017-15299: KEYS: don't let add_key() update an uninstantiated key
• ELS-138: fix CVE-2016-9604
• ELS-138: KEYS: add missing permission check for request_key() destination
• ELS-138: CVE-2017-10661: timerfd: Protect the might cancel mechanism proper
• ELS-138: fix CVE-2017-7472
• ELS-138: fix CVE-2017-15274

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-22555)

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory.(CVE-2021-3653)

Maxim Levitsky and Paolo Bonzini discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel allowed a guest VM to disable restrictions on VMLOAD/VMSAVE in a nested guest. An attacker in a guest VM could use this to read or write portions of the host's physical memory.(CVE-2021-3656)

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-22555)

It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.(CVE-2021-33909)

The BPF subsystem in the Linux kernel before 4.17 mishandles situations with a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions, leading to an overflow. This affects kernel/bpf/core.c and net/core/filter.c.(CVE-2018-25020)

Maxim Levitsky discovered that the KVM hypervisor implementation for AMD processors in the Linux kernel did not properly prevent a guest VM from enabling AVIC in nested guest VMs. An attacker in a guest VM could use this to write to portions of the host's physical memory.(CVE-2021-3653)

Nadav Amit discovered that the hugetlb implementation in the Linux kernel did not perform TLB flushes under certain conditions. A local attacker could use this to leak or alter data from other processes that use huge pages.(CVE-2021-4002)

Andy Nguyen discovered that the netfilter subsystem in the Linux kernel contained an out-of-bounds write in its setsockopt() implementation. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code.(CVE-2021-22555)

It was discovered that the virtual file system implementation in the Linux kernel contained an unsigned to signed integer conversion error. A local attacker could use this to cause a denial of service (system crash) or execute arbitrary code.(CVE-2021-33909)

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

The following security bugs were fixed:

• CVE-2021-22555: A heap out-of-bounds write affecting Linux was discovered in net/netfilter/x_tables.c (bnc#1188116).
• CVE-2021-33909: fs/seq_file.c did not properly restrict seq buffer allocations, leading to an integer overflow, an Out-of-bounds Write, and escalation to root by an unprivileged user, aka CID-8cae8cd89f05 (bnc#1188062).
• CVE-2021-3609: A use-after-free in can/bcm could have led to privilege escalation (bsc#1187215).
• CVE-2021-3612: An out-of-bounds memory write flaw was found in the joystick devices subsystem in versions before 5.9-rc1, in the way the user calls ioctl JSIOCSBTNMAP. This flaw allowed a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability (bnc#1187585 ).
• CVE-2021-35039: kernel/module.c in the Linux kernel mishandled Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, did not occur for a module.sig_enforce=1 command-line argument (bnc#1188080).

The following non-security bugs were fixed:

• ACPI: APEI: fix synchronous external aborts in user-mode (git-fixes).
• ACPI: bus: Call kobject_put() in acpi_init() error path (git-fixes).
• ACPICA: Fix memory leak caused by _CID repair function (git-fixes).
• ACPI: EC: Make more Asus laptops use ECDT _GPE (git-fixes).
• ACPI: processor idle: Fix up C-state latency if not ordered (git-fixes).
• ACPI: property: Constify stubs for CONFIG_ACPI=n case (git-fixes).
• ACPI: resources: Add checks for ACPI IRQ override (git-fixes).
• ACPI: sysfs: Fix a buffer overrun problem with description_show() (git-fixes).
• ALSA: hda/realtek: Add another ALC236 variant support (git-fixes).
• ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D (git-fixes).
• ALSA: intel8x0: Fix breakage at ac97 clock measurement (git-fixes).
• ALSA: isa: Fix error return code in snd_cmi8330_probe() (git-fixes).
• ALSA: usb-audio: fix rate on Ozone Z90 USB headset (git-fixes).
• ALSA: usb-audio: scarlett2: Fix wrong resume call (git-fixes).
• ALSA: usb-audio: scarlett2: Read mixer volumes at init time (git-fixes).
• ALSA: usb-audio: scarlett2: Read mux at init time (git-fixes).
• amdgpu: fix GEM obj leak in amdgpu_display_user_framebuffer_create (bsc#1152472)
• ARM: ensure the signal page contains defined contents (bsc#1188445).
• ASoC: atmel-i2s: Fix usage of capture and playback at the same time (git-fixes).
• ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK (git-fixes).
• ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() (git-fixes).
• ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()' (git-fixes).
• ASoC: rsnd: tidyup loop on rsnd_adg_clk_query() (git-fixes).
• ASoC: tegra: Set driver_name=tegra for all machine drivers (git-fixes).
• ata: ahci_sunxi: Disable DIPM (git-fixes).
• ath10k: add missing error return code in ath10k_pci_probe() (git-fixes).
• ath10k: Fix an error code in ath10k_add_interface() (git-fixes).
• ath10k: go to path err_unsupported when chip id is not supported (git-fixes).
• ath10k: remove unused more_frags variable (git-fixes).
• ath9k: Fix kernel NULL pointer dereference during ath_reset_internal() (git-fixes).
• backlight: lm3630a_bl: Put fwnode in error case during ->probe() (git-fixes).
• blk-mq: Add blk_mq_delay_run_hw_queues() API call (bsc#1180092).
• blk-mq: In blk_mq_dispatch_rq_list() 'no budget' is a reason to kick (bsc#1180092).
• blk-mq: insert flush request to the front of dispatch queue (bsc#1180092).
• blk-mq: insert passthrough request into hctx->dispatch directly (bsc#1180092).
• blk-mq: Put driver tag in blk_mq_dispatch_rq_list() when no budget (bsc#1180092).
• blk-mq: Rerun dispatching in the case…

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

The following security bugs were fixed:

• CVE-2021-22555: A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c (bnc#1188116 ).
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to obtain full root privileges (bsc#1188062).

The following non-security bugs were fixed:

• ceph: must hold snap_rwsem when filling inode for async create (bsc#1187927).
• cgroup1: do not allow '\n' in renaming (bsc#1187972).
• qla2xxx: synchronize rport dev_loss_tmo setting (bsc#1182470 bsc#1185486).
• scsi: ufs: ufshcd-pltfrm depends on HAS_IOMEM (bsc#1187980).
• usb: dwc3: Fix debugfs creation flow (git-fixes).
• x86/pkru: Write hardware init value to PKRU when xstate is init (bsc#1152489).
• x86/process: Check PF_KTHREAD and not current->mm for kernel threads (bsc#1152489).

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

Security issues 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).

The following non-security bugs were fixed:

• usb: dwc3: Fix debugfs creation flow (git-fixes).

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).

In xt_compat_target_from_user of x_tables.c, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

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 12 SP5 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. (bnc#1188116)
• 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-2021-3612: Fixed an out-of-bounds memory write flaw which could allows a local user to crash the system or possibly escalate their privileges on the system. (bsc#1187585)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation (bsc#1187050).

The following non-security bugs were fixed:

• ACPI: property: Constify stubs for CONFIG_ACPI=n case (git-fixes).
• ACPI: sysfs: Fix a buffer overrun problem with description_show() (git-fixes).
• ALSA: isa: Fix error return code in snd_cmi8330_probe() (git-fixes).
• arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode (git-fixes).
• arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan (git-fixes).
• ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK (git-fixes).
• ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() (git-fixes).
• ata: ahci_sunxi: Disable DIPM (git-fixes).
• ath10k: Fix an error code in ath10k_add_interface() (git-fixes).
• Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid (git-fixes).
• brcmfmac: correctly report average RSSI in station info (git-fixes).
• brcmfmac: fix setting of station info chains bitmask (git-fixes).
• brcmsmac: mac80211_if: Fix a resource leak in an error handling path (git-fixes).
• can: flexcan: disable completely the ECC mechanism (git-fixes).
• can: gw: synchronize rcu operations before removing gw job entry (git-fixes).
• can: hi311x: hi3110_can_probe(): silence clang warning (git-fixes).
• can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path (git-fixes).
• can: xilinx_can: xcan_chip_start(): fix failure with invalid bus (git-fixes).
• cfg80211: call cfg80211_leave_ocb when switching away from OCB (git-fixes).
• char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol() (git-fixes).
• crypto: cavium/nitrox - Fix an error rhandling path in 'nitrox_probe()' (git-fixes).
• crypto: ccp - Fix a resource leak in an error handling path (12sp5).
• cxgb4: fix wrong shift (git-fixes).
• drm: qxl: ensure surf.data is ininitialized (git-fixes).
• drm/nouveau: wait for moving fence after pinning v2 (git-fixes).
• drm/radeon: wait for moving fence after pinning (git-fixes).
• drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write() (git-fixes).
• extcon: max8997: Add missing modalias string (git-fixes).
• extcon: sm5502: Drop invalid register write in sm5502_reg_data (git-fixes).
• fpga: stratix10-soc: Add missing fpga_mgr_free() call (git-fixes).
• fuse: check connected before queueing on fpq->io (bsc#1188273).
• fuse: reject internal errno (bsc#1188274).
• genirq: Disable interrupts for force threaded handlers (git-fixes)
• genirq: Fix reference leaks on irq affinity notifiers (git-fixes)
• genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY (git-fixes)
• genirq/irqdomain: Do not try to free an interrupt that has no (git-fixes)
• gve: Fix swapped vars when fetching max queues (git-fixes).
• HID: Add BUS_VIRTUAL to hid_connect logging (git-fixes).
• HID: gt683r: add missing MODULE_DEVICE_TABLE (git-fixes).
• HID: hid-sensor-hub: Return error for hid_set_field() failure (git-fixes).
• HID: usbhid: fix info leak in hid_submit_ctrl (git-fixes).
• hwmon: (max31722) Remove non-standard ACPI device IDs (git-fixes).
• hwmon: (max31790) Fix fan speed reporting for fan7..12 (git-fixes).
• i2c: robotfuzz-osif: fix…

The SUSE Linux Enterprise 15 SP2 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: 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-2021-3612: Fixed an out-of-bounds memory write flaw which could allows a local user to crash the system or possibly escalate their privileges on the system. (bsc#1187585)
• CVE-2021-35039: Fixed a bug where modules signature verification did not occur if CONFIG_MODULE_SIG is not set, regardless of the value of module.sig_enforce command-line argument. (bnc#1188080)

The following non-security bugs were fixed:

• ACPI: APEI: fix synchronous external aborts in user-mode (git-fixes).
• ACPI: bus: Call kobject_put() in acpi_init() error path (git-fixes).
• ACPICA: Fix memory leak caused by _CID repair function (git-fixes).
• ACPI: EC: Make more Asus laptops use ECDT _GPE (git-fixes).
• ACPI: processor idle: Fix up C-state latency if not ordered (git-fixes).
• ACPI: property: Constify stubs for CONFIG_ACPI=n case (git-fixes).
• ACPI: resources: Add checks for ACPI IRQ override (git-fixes).
• ACPI: sysfs: Fix a buffer overrun problem with description_show() (git-fixes).
• ALSA: hda/realtek: Add another ALC236 variant support (git-fixes).
• ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D (git-fixes).
• ALSA: intel8x0: Fix breakage at ac97 clock measurement (git-fixes).
• ALSA: isa: Fix error return code in snd_cmi8330_probe() (git-fixes).
• ALSA: usb-audio: fix rate on Ozone Z90 USB headset (git-fixes).
• ALSA: usb-audio: scarlett2: Fix wrong resume call (git-fixes).
• ALSA: usb-audio: scarlett2: Read mixer volumes at init time (git-fixes).
• ALSA: usb-audio: scarlett2: Read mux at init time (git-fixes).
• amdgpu: fix GEM obj leak in amdgpu_display_user_framebuffer_create (bsc#1152472)
• ASoC: atmel-i2s: Fix usage of capture and playback at the same time (git-fixes).
• ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK (git-fixes).
• ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() (git-fixes).
• ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()' (git-fixes).
• ASoC: rsnd: tidyup loop on rsnd_adg_clk_query() (git-fixes).
• ata: ahci_sunxi: Disable DIPM (git-fixes).
• ath10k: add missing error return code in ath10k_pci_probe() (git-fixes).
• ath10k: Fix an error code in ath10k_add_interface() (git-fixes).
• ath10k: go to path err_unsupported when chip id is not supported (git-fixes).
• ath10k: remove unused more_frags variable (git-fixes).
• ath9k: Fix kernel NULL pointer dereference during ath_reset_internal() (git-fixes).
• backlight: lm3630a_bl: Put fwnode in error case during ->probe() (git-fixes).
• Blacklist already cherry-picked ASoC commits
• Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event (git-fixes).
• Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid (git-fixes).
• brcmfmac: correctly report average RSSI in station info (git-fixes).
• brcmfmac: fix setting of station info chains bitmask (git-fixes).
• brcmsmac: mac80211_if: Fix a resource leak in an error handling path (git-fixes).
• can: gw: synchronize rcu operations before removing gw job entry (git-fixes).
• can: hi311x: hi3110_can_probe(): silence clang warning (git-fixes).
• can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path (git-fixes).
• cfg80211: call cfg80211_leave_ocb when switching away from OCB (git-fixes).
• char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol() (git-fixes).
• clk: actions: Fix bisp_factor_table based clocks on Owl S500 SoC (git-fixes).
• clk: actions: Fix SD…

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

The following security bugs were fixed:

• CVE-2021-22555: A heap out-of-bounds write affecting Linux since v2.6.19-rc1 was discovered in net/netfilter/x_tables.c (bnc#1188116 ).
• CVE-2021-33909: Fixed an out-of-bounds write in the filesystem layer that allows to obtain full root privileges (bsc#1188062).

The following non-security bugs were fixed:

• ceph: must hold snap_rwsem when filling inode for async create (bsc#1187927).
• cgroup1: do not allow '\n' in renaming (bsc#1187972).
• qla2xxx: synchronize rport dev_loss_tmo setting (bsc#1182470 bsc#1185486).
• scsi: ufs: ufshcd-pltfrm depends on HAS_IOMEM (bsc#1187980).
• usb: dwc3: Fix debugfs creation flow (git-fixes).
• x86/pkru: Write hardware init value to PKRU when xstate is init (bsc#1152489).
• x86/process: Check PF_KTHREAD and not current->mm for kernel threads (bsc#1152489).

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

Security issues 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).

The following non-security bugs were fixed:

• usb: dwc3: Fix debugfs creation flow (git-fixes).

The SUSE Linux Enterprise 12 SP5 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-2021-3612: Fixed an out-of-bounds memory write flaw which could allows a local user to crash the system or possibly escalate their privileges on the system. (bsc#1187585)
• CVE-2020-36385: Fixed a use-after-free flaw in ucma.c which allows for local privilege escalation. (bsc#1187050)

The following non-security bugs were fixed:

• ACPI: property: Constify stubs for CONFIG_ACPI=n case (git-fixes).
• ACPI: sysfs: Fix a buffer overrun problem with description_show() (git-fixes).
• ALSA: isa: Fix error return code in snd_cmi8330_probe() (git-fixes).
• arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode (git-fixes).
• arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan (git-fixes).
• ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK (git-fixes).
• ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() (git-fixes).
• ata: ahci_sunxi: Disable DIPM (git-fixes).
• ath10k: Fix an error code in ath10k_add_interface() (git-fixes).
• Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid (git-fixes).
• brcmfmac: correctly report average RSSI in station info (git-fixes).
• brcmfmac: fix setting of station info chains bitmask (git-fixes).
• brcmsmac: mac80211_if: Fix a resource leak in an error handling path (git-fixes).
• can: gw: synchronize rcu operations before removing gw job entry (git-fixes).
• can: hi311x: hi3110_can_probe(): silence clang warning (git-fixes).
• can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path (git-fixes).
• cfg80211: call cfg80211_leave_ocb when switching away from OCB (git-fixes).
• char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol() (git-fixes).
• crypto: cavium/nitrox - Fix an error rhandling path in 'nitrox_probe()' (git-fixes).
• cxgb4: fix wrong shift (git-fixes).
• drm: qxl: ensure surf.data is ininitialized (git-fixes).
• drm/nouveau: wait for moving fence after pinning v2 (git-fixes).
• drm/radeon: wait for moving fence after pinning (git-fixes).
• drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write() (git-fixes).
• extcon: max8997: Add missing modalias string (git-fixes).
• extcon: sm5502: Drop invalid register write in sm5502_reg_data (git-fixes).
• fpga: stratix10-soc: Add missing fpga_mgr_free() call (git-fixes).
• fuse: check connected before queueing on fpq->io (bsc#1188273).
• fuse: reject internal errno (bsc#1188274).
• genirq: Disable interrupts for force threaded handlers (git-fixes)
• genirq: Fix reference leaks on irq affinity notifiers (git-fixes)
• genirq: Let GENERIC_IRQ_IPI select IRQ_DOMAIN_HIERARCHY (git-fixes)
• genirq/irqdomain: Do not try to free an interrupt that has no (git-fixes)
• gve: Fix swapped vars when fetching max queues (git-fixes).
• HID: Add BUS_VIRTUAL to hid_connect logging (git-fixes).
• HID: gt683r: add missing MODULE_DEVICE_TABLE (git-fixes).
• HID: hid-sensor-hub: Return error for hid_set_field() failure (git-fixes).
• HID: usbhid: fix info leak in hid_submit_ctrl (git-fixes).
• hwmon: (max31722) Remove non-standard ACPI device IDs (git-fixes).
• hwmon: (max31790) Fix fan speed reporting for fan7..12 (git-fixes).
• i2c: robotfuzz-osif: fix control-request directions (git-fixes).
• ibmvnic: Allow device probe if the device is not ready at boot (bsc#1184114 ltc#192237).
• ibmvnic: fix kernel build warning (bsc#1184114 ltc#192237).
• ibmvnic: fix kernel build…

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 15 SP2 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-2021-3612: An out-of-bounds memory write flaw was found in the joystick devices subsystem in the way the user calls ioctl JSIOCSBTNMAP. This flaw allowed a local user to crash the system or possibly escalate their privileges on the system. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability (bnc#1187585 ).
• CVE-2021-35039: kernel/module.c mishandled Signature Verification, aka CID-0c18f29aae7c. Without CONFIG_MODULE_SIG, verification that a kernel module is signed, for loading via init_module, did not occur for a module.sig_enforce=1 command-line argument (bnc#1188080). NOTE that SUSE kernels are configured with CONFIG_MODULE_SIG=y, so are not affected.

The following non-security bugs were fixed:

• ACPI: APEI: fix synchronous external aborts in user-mode (git-fixes).
• ACPI: bus: Call kobject_put() in acpi_init() error path (git-fixes).
• ACPICA: Fix memory leak caused by _CID repair function (git-fixes).
• ACPI: EC: Make more Asus laptops use ECDT _GPE (git-fixes).
• ACPI: processor idle: Fix up C-state latency if not ordered (git-fixes).
• ACPI: property: Constify stubs for CONFIG_ACPI=n case (git-fixes).
• ACPI: resources: Add checks for ACPI IRQ override (git-fixes).
• ACPI: sysfs: Fix a buffer overrun problem with description_show() (git-fixes).
• ALSA: hda/realtek: Add another ALC236 variant support (git-fixes).
• ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D (git-fixes).
• ALSA: intel8x0: Fix breakage at ac97 clock measurement (git-fixes).
• ALSA: isa: Fix error return code in snd_cmi8330_probe() (git-fixes).
• ALSA: usb-audio: fix rate on Ozone Z90 USB headset (git-fixes).
• ALSA: usb-audio: scarlett2: Fix wrong resume call (git-fixes).
• ALSA: usb-audio: scarlett2: Read mixer volumes at init time (git-fixes).
• ALSA: usb-audio: scarlett2: Read mux at init time (git-fixes).
• amdgpu: fix GEM obj leak in amdgpu_display_user_framebuffer_create (bsc#1152472)
• ASoC: atmel-i2s: Fix usage of capture and playback at the same time (git-fixes).
• ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK (git-fixes).
• ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() (git-fixes).
• ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()' (git-fixes).
• ASoC: rsnd: tidyup loop on rsnd_adg_clk_query() (git-fixes).
• ata: ahci_sunxi: Disable DIPM (git-fixes).
• ath10k: add missing error return code in ath10k_pci_probe() (git-fixes).
• ath10k: Fix an error code in ath10k_add_interface() (git-fixes).
• ath10k: go to path err_unsupported when chip id is not supported (git-fixes).
• ath10k: remove unused more_frags variable (git-fixes).
• ath9k: Fix kernel NULL pointer dereference during ath_reset_internal() (git-fixes).
• backlight: lm3630a_bl: Put fwnode in error case during ->probe() (git-fixes).
• Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event (git-fixes).
• Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid (git-fixes).
• brcmfmac: correctly report average RSSI in station info (git-fixes).
• brcmfmac: fix setting of station info chains bitmask (git-fixes).
• brcmsmac: mac80211_if: Fix a resource leak in an error handling path (git-fixes).
• can: gw: synchronize rcu operations before removing gw job entry (git-fixes).
• can: hi311x: hi3110_can_probe(): silence clang warning (git-fixes).
• can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path (git-fixes). -…

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…