CVE-2021-4202

A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.

A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.

The Linux Kernel, the operating system core itself.

Security Fix(es):

A use-after-free read flaw was found in sock_getsockopt() in net/core/sock.c due to SO_PEERCRED and SO_PEERGROUPS race with listen() (and connect()) in the Linux kernel. In this flaw, an attacker with a user privileges may crash the system or leak internal kernel information.(CVE-2021-4203)

In gre_handle_offloads of ip_gre.c, there is a possible page fault due to an invalid memory access. This could lead to local information disclosure with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-150694665References: Upstream kernel.(CVE-2021-39633)

An unprivileged write to the file handler flaw in the Linux kernel s control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.(CVE-2021-4197)

A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.(CVE-2021-4202)

A use-after-free flaw was found in nci_request in net/nfc/nci/core.c in NFC Controller Interface (NCI) in the Linux kernel. This flaw could allow a local attacker with user privileges to cause a data race problem while the device is getting removed, leading to a privilege escalation problem.

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

The following security bugs were fixed:

• CVE-2022-0185: Incorrect param length parsing in legacy_parse_param which could have led to a local privilege escalation (bsc#1194517).
• CVE-2022-0322: Fixed a denial of service in SCTP sctp_addto_chunk (bsc#1194985).
• CVE-2021-4197: Fixed a cgroup issue where lower privileged processes could write to fds of lower privileged ones that could lead to privilege escalation (bsc#1194302).
• CVE-2021-46283: nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace (bnc#1194518).
• CVE-2021-4135: Fixed an information leak in the nsim_bpf_map_alloc function (bsc#1193927).
• CVE-2021-4202: Fixed a race condition during NFC device remove which could lead to a use-after-free memory corruption (bsc#1194529)
• CVE-2021-4083: A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allowed a local user to crash the system or escalate their privileges on the system. (bnc#1193727).
• CVE-2021-4149: Fixed a locking condition in btrfs which could lead to system deadlocks (bsc#1194001).
• CVE-2021-45485: In the IPv6 implementation net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses (bnc#1194094).
• CVE-2021-45486: In the IPv4 implementation net/ipv4/route.c has an information leak because the hash table is very small (bnc#1194087).

The following non-security bugs were fixed:

• ACPI: APD: Check for NULL pointer after calling devm_ioremap() (git-fixes).
• ACPI: Add stubs for wakeup handler functions (git-fixes).
• ACPI: scan: Create platform device for BCM4752 and LNV4752 ACPI nodes (git-fixes).
• ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: ctl: Fix copy of updated id with element read/write (git-fixes).
• ALSA: drivers: opl3: Fix incorrect use of vp->state (git-fixes).
• ALSA: hda/hdmi: Disable silent stream on GLK (git-fixes).
• ALSA: hda/realtek - Add headset Mic support for Lenovo ALC897 platform (git-fixes).
• ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master after reboot from Windows (git-fixes).
• ALSA: hda/realtek: Add a quirk for HP OMEN 15 mute LED (git-fixes).
• ALSA: hda/realtek: Add quirk for ASRock NUC Box 1100 (git-fixes).
• ALSA: hda/realtek: Amp init fixup for HP ZBook 15 G6 (git-fixes).
• ALSA: hda/realtek: Fix quirk for Clevo NJ51CU (git-fixes).
• ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek: Fixes HP Spectre x360 15-eb1xxx speakers (git-fixes).
• ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ (git-fixes).
• ALSA: hda: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: hda: Make proper use of timecounter (git-fixes).
• ALSA: jack: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: jack: Check the return value of kstrdup() (git-fixes).
• ALSA: oss: fix compile error when OSS_DEBUG is enabled (git-fixes).
• ALSA: pcm: oss: Fix negative period/buffer sizes (git-fixes).
• ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*() (git-fixes).
• ALSA: pcm: oss: Limit the period size to 16MB (git-fixes).
• ALSA: usb-audio: Drop superfluous '0' in Presonus Studio 1810c's ID (git-fixes).
• ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk (git-fixes).
• ASoC: codecs: wcd934x: handle channel mappping list correctly (git-fixes).
• ASoC: codecs: wcd934x:…

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

The following security bugs were fixed:

• CVE-2022-0185: Incorrect param length parsing in legacy_parse_param which could have led to a local privilege escalation (bsc#1194517).
• CVE-2022-0322: Fixed a denial of service in SCTP sctp_addto_chunk (bsc#1194985).
• CVE-2021-4197: Fixed a cgroup issue where lower privileged processes could write to fds of lower privileged ones that could lead to privilege escalation (bsc#1194302).
• CVE-2021-46283: nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace (bnc#1194518).
• CVE-2021-4135: Fixed an information leak in the nsim_bpf_map_alloc function (bsc#1193927).
• CVE-2021-4202: Fixed a race condition during NFC device remove which could lead to a use-after-free memory corruption (bsc#1194529)
• CVE-2021-4083: A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allowed a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4 (bnc#1193727).
• CVE-2021-4149: Fixed a locking condition in btrfs which could lead to system deadlocks (bsc#1194001).
• CVE-2021-45485: In the IPv6 implementation in net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses (bnc#1194094).
• CVE-2021-45486: In the IPv4 implementation in net/ipv4/route.c has an information leak because the hash table is very small (bnc#1194087).

The following non-security bugs were fixed:

• ACPI: APD: Check for NULL pointer after calling devm_ioremap() (git-fixes).
• ACPI: Add stubs for wakeup handler functions (git-fixes).
• ACPI: scan: Create platform device for BCM4752 and LNV4752 ACPI nodes (git-fixes).
• ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: ctl: Fix copy of updated id with element read/write (git-fixes).
• ALSA: drivers: opl3: Fix incorrect use of vp->state (git-fixes).
• ALSA: hda/hdmi: Disable silent stream on GLK (git-fixes).
• ALSA: hda/realtek - Add headset Mic support for Lenovo ALC897 platform (git-fixes).
• ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master after reboot from Windows (git-fixes).
• ALSA: hda/realtek: Add a quirk for HP OMEN 15 mute LED (git-fixes).
• ALSA: hda/realtek: Add quirk for ASRock NUC Box 1100 (git-fixes).
• ALSA: hda/realtek: Amp init fixup for HP ZBook 15 G6 (git-fixes).
• ALSA: hda/realtek: Fix quirk for Clevo NJ51CU (git-fixes).
• ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek: Fixes HP Spectre x360 15-eb1xxx speakers (git-fixes).
• ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ (git-fixes).
• ALSA: hda: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: hda: Make proper use of timecounter (git-fixes).
• ALSA: jack: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: jack: Check the return value of kstrdup() (git-fixes).
• ALSA: oss: fix compile error when OSS_DEBUG is enabled (git-fixes).
• ALSA: pcm: oss: Fix negative period/buffer sizes (git-fixes).
• ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*() (git-fixes).
• ALSA: pcm: oss: Limit the period size to 16MB (git-fixes).
• ALSA: usb-audio: Drop superfluous '0' in Presonus Studio 1810c's ID (git-fixes).
• ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk (git-fixes).
• ASoC: codecs: wcd934x: handle channel mappping…

The SUSE Linux Enterprise 15 SP1 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2019-15126: Fixed a vulnerability in Broadcom…

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

The following security bugs were fixed:

• CVE-2022-0185: Incorrect param length parsing in legacy_parse_param which could have led to a local privilege escalation (bsc#1194517).
• CVE-2022-0322: Fixed a denial of service in SCTP sctp_addto_chunk (bsc#1194985).
• CVE-2021-4197: Fixed a cgroup issue where lower privileged processes could write to fds of lower privileged ones that could lead to privilege escalation (bsc#1194302).
• CVE-2021-46283: nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace (bnc#1194518).
• CVE-2021-4135: Fixed an information leak in the nsim_bpf_map_alloc function (bsc#1193927).
• CVE-2021-4202: Fixed a race condition during NFC device remove which could lead to a use-after-free memory corruption (bsc#1194529)
• CVE-2021-4083: A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allowed a local user to crash the system or escalate their privileges on the system. (bnc#1193727).
• CVE-2021-4149: Fixed a locking condition in btrfs which could lead to system deadlocks (bsc#1194001).
• CVE-2021-45485: In the IPv6 implementation net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses (bnc#1194094).
• CVE-2021-45486: In the IPv4 implementation net/ipv4/route.c has an information leak because the hash table is very small (bnc#1194087).

The following non-security bugs were fixed:

• ACPI: APD: Check for NULL pointer after calling devm_ioremap() (git-fixes).
• ACPI: Add stubs for wakeup handler functions (git-fixes).
• ACPI: scan: Create platform device for BCM4752 and LNV4752 ACPI nodes (git-fixes).
• ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: ctl: Fix copy of updated id with element read/write (git-fixes).
• ALSA: drivers: opl3: Fix incorrect use of vp->state (git-fixes).
• ALSA: hda/hdmi: Disable silent stream on GLK (git-fixes).
• ALSA: hda/realtek - Add headset Mic support for Lenovo ALC897 platform (git-fixes).
• ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master after reboot from Windows (git-fixes).
• ALSA: hda/realtek: Add a quirk for HP OMEN 15 mute LED (git-fixes).
• ALSA: hda/realtek: Add quirk for ASRock NUC Box 1100 (git-fixes).
• ALSA: hda/realtek: Amp init fixup for HP ZBook 15 G6 (git-fixes).
• ALSA: hda/realtek: Fix quirk for Clevo NJ51CU (git-fixes).
• ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek: Fixes HP Spectre x360 15-eb1xxx speakers (git-fixes).
• ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ (git-fixes).
• ALSA: hda: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: hda: Make proper use of timecounter (git-fixes).
• ALSA: jack: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: jack: Check the return value of kstrdup() (git-fixes).
• ALSA: oss: fix compile error when OSS_DEBUG is enabled (git-fixes).
• ALSA: pcm: oss: Fix negative period/buffer sizes (git-fixes).
• ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*() (git-fixes).
• ALSA: pcm: oss: Limit the period size to 16MB (git-fixes).
• ALSA: usb-audio: Drop superfluous '0' in Presonus Studio 1810c's ID (git-fixes).
• ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk (git-fixes).
• ASoC: codecs: wcd934x: handle channel mappping list correctly (git-fixes).
• ASoC: codecs: wcd934x:…

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

The following security bugs were fixed:

• CVE-2022-0185: Incorrect param length parsing in legacy_parse_param which could have led to a local privilege escalation (bsc#1194517).
• CVE-2022-0322: Fixed a denial of service in SCTP sctp_addto_chunk (bsc#1194985).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel that occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-4197: Fixed a cgroup issue where lower privileged processes could write to fds of lower privileged ones that could lead to privilege escalation (bsc#1194302).
• CVE-2021-4135: Fixed an information leak in the nsim_bpf_map_alloc function (bsc#1193927).
• CVE-2021-4202: Fixed a race condition during NFC device remove which could lead to a use-after-free memory corruption (bsc#1194529)
• CVE-2021-4083: A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allowed a local user to crash the system or escalate their privileges on the system. (bnc#1193727).
• CVE-2021-4149: Fixed a locking condition in btrfs which could lead to system deadlocks (bsc#1194001).
• CVE-2021-45485: The IPv6 implementation in net/ipv6/output_core.c had an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses (bnc#1194094).
• CVE-2021-45486: The IPv4 implementation in net/ipv4/route.c had an information leak because the hash table is very small (bnc#1194087).
• CVE-2021-4001: A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. (bnc#1192990).
• CVE-2021-28715: Guest can force Linux netback driver to hog large amounts of kernel memory. Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to process them. There are some measures taken for avoiding to pile up too much data, but those can be bypassed by the guest: There was a timeout how long the client side of an interface can stop consuming new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default). Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time. (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in its RX queue ring page and the next package would require more than one free slot, which may be the case when using GSO, XDP, or software hashing. ()
• CVE-2021-28714: Guest can force Linux netback driver to hog large amounts of kernel memory. Incoming data packets for a guest in the Linux kernel's netback driver are buffered until the guest is ready to process them. There are some measures taken for avoiding to pile up too much data, but those can be bypassed by the guest: There was a timeout how long the client side of an interface can stop consuming new packets before it is assumed to have stalled, but this timeout is rather long (60 seconds by default). Using a UDP connection on a fast interface can easily accumulate gigabytes of data in that time. (CVE-2021-28715) The timeout could even never trigger if the guest manages to have only one free slot in its RX queue ring page and the next package would require more than one free slot, which may be the case when using GSO, XDP, or software hashing (bnc#1193442).
• CVE-2021-28713: Rogue backends can cause DoS of guests via high frequency…

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

The following security bugs were fixed:

• CVE-2022-0185: Incorrect param length parsing in legacy_parse_param which could have led to a local privilege escalation (bsc#1194517).
• CVE-2022-0322: Fixed a denial of service in SCTP sctp_addto_chunk (bsc#1194985).
• CVE-2021-4197: Fixed a cgroup issue where lower privileged processes could write to fds of lower privileged ones that could lead to privilege escalation (bsc#1194302).
• CVE-2021-46283: nf_tables_newset in net/netfilter/nf_tables_api.c in the Linux kernel allowed local users to cause a denial of service (NULL pointer dereference and general protection fault) because of the missing initialization for nft_set_elem_expr_alloc. A local user can set a netfilter table expression in their own namespace (bnc#1194518).
• CVE-2021-4135: Fixed an information leak in the nsim_bpf_map_alloc function (bsc#1193927).
• CVE-2021-4202: Fixed a race condition during NFC device remove which could lead to a use-after-free memory corruption (bsc#1194529)
• CVE-2021-4083: A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allowed a local user to crash the system or escalate their privileges on the system. This flaw affects Linux kernel versions prior to 5.16-rc4 (bnc#1193727).
• CVE-2021-4149: Fixed a locking condition in btrfs which could lead to system deadlocks (bsc#1194001).
• CVE-2021-45485: In the IPv6 implementation in net/ipv6/output_core.c has an information leak because of certain use of a hash table which, although big, doesn't properly consider that IPv6-based attackers can typically choose among many IPv6 source addresses (bnc#1194094).
• CVE-2021-45486: In the IPv4 implementation in net/ipv4/route.c has an information leak because the hash table is very small (bnc#1194087).

The following non-security bugs were fixed:

• ACPI: APD: Check for NULL pointer after calling devm_ioremap() (git-fixes).
• ACPI: Add stubs for wakeup handler functions (git-fixes).
• ACPI: scan: Create platform device for BCM4752 and LNV4752 ACPI nodes (git-fixes).
• ALSA: PCM: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: ctl: Fix copy of updated id with element read/write (git-fixes).
• ALSA: drivers: opl3: Fix incorrect use of vp->state (git-fixes).
• ALSA: hda/hdmi: Disable silent stream on GLK (git-fixes).
• ALSA: hda/realtek - Add headset Mic support for Lenovo ALC897 platform (git-fixes).
• ALSA: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master after reboot from Windows (git-fixes).
• ALSA: hda/realtek: Add a quirk for HP OMEN 15 mute LED (git-fixes).
• ALSA: hda/realtek: Add quirk for ASRock NUC Box 1100 (git-fixes).
• ALSA: hda/realtek: Amp init fixup for HP ZBook 15 G6 (git-fixes).
• ALSA: hda/realtek: Fix quirk for Clevo NJ51CU (git-fixes).
• ALSA: hda/realtek: Fix quirk for TongFang PHxTxX1 (git-fixes).
• ALSA: hda/realtek: Fixes HP Spectre x360 15-eb1xxx speakers (git-fixes).
• ALSA: hda/realtek: Headset fixup for Clevo NH77HJQ (git-fixes).
• ALSA: hda: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: hda: Make proper use of timecounter (git-fixes).
• ALSA: jack: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• ALSA: jack: Check the return value of kstrdup() (git-fixes).
• ALSA: oss: fix compile error when OSS_DEBUG is enabled (git-fixes).
• ALSA: pcm: oss: Fix negative period/buffer sizes (git-fixes).
• ALSA: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*() (git-fixes).
• ALSA: pcm: oss: Limit the period size to 16MB (git-fixes).
• ALSA: usb-audio: Drop superfluous '0' in Presonus Studio 1810c's ID (git-fixes).
• ALSA: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk (git-fixes).
• ASoC: codecs: wcd934x: handle channel mappping…

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

The following security bugs were fixed:

• CVE-2021-4083: Fixed race condition in Unix domain socket garbage collection that could lead to read memory after free (bsc#1193727).
• CVE-2021-4135: Fixed an information leak in the nsim_bpf_map_alloc function (bsc#1193927).
• CVE-2021-4149: Fixed improper lock operation in btrfs that allowed users to crash the kernel or deadlock the system (bsc#1194001).
• CVE-2021-4197: Fixed a cgroup issue where lower privileged processes could write to fds of lower privileged ones that could lead to privilege escalation (bsc#1194302).
• CVE-2021-4202: Fixed race condition in nci_request() that could cause use-after-free (bsc#1194529).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel that occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-46283: Fixed missing initialization in nf_tables_newset in net/netfilter/nf_tables_api.c that could cause a denial of service (bnc#1194518).
• CVE-2022-0185: Incorrect param length parsing in legacy_parse_param which could have led to a local privilege escalation (bsc#1194517).
• CVE-2022-0322: Fixed a denial of service in SCTP sctp_addto_chunk (bsc#1194985).

The following non-security bugs were fixed:

• acpi: APD: Check for NULL pointer after calling devm_ioremap() (git-fixes).
• acpi: Add stubs for wakeup handler functions (git-fixes).
• acpi: scan: Create platform device for BCM4752 and LNV4752 ACPI nodes (git-fixes).
• alsa: PCM: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• alsa: ctl: Fix copy of updated id with element read/write (git-fixes).
• alsa: drivers: opl3: Fix incorrect use of vp->state (git-fixes).
• alsa: hda/hdmi: Disable silent stream on GLK (git-fixes).
• alsa: hda/realtek - Add headset Mic support for Lenovo ALC897 platform (git-fixes).
• alsa: hda/realtek - Fix silent output on Gigabyte X570 Aorus Master after reboot from Windows (git-fixes).
• alsa: hda/realtek: Add a quirk for HP OMEN 15 mute LED (git-fixes).
• alsa: hda/realtek: Add quirk for ASRock NUC Box 1100 (git-fixes).
• alsa: hda/realtek: Amp init fixup for HP ZBook 15 G6 (git-fixes).
• alsa: hda/realtek: Fix quirk for Clevo NJ51CU (git-fixes).
• alsa: hda/realtek: Fix quirk for TongFang PHxTxX1 (git-fixes).
• alsa: hda/realtek: Fixes HP Spectre x360 15-eb1xxx speakers (git-fixes).
• alsa: hda/realtek: Headset fixup for Clevo NH77HJQ (git-fixes).
• alsa: hda: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• alsa: hda: Make proper use of timecounter (git-fixes).
• alsa: jack: Add missing rwsem around snd_ctl_remove() calls (git-fixes).
• alsa: jack: Check the return value of kstrdup() (git-fixes).
• alsa: oss: fix compile error when OSS_DEBUG is enabled (git-fixes).
• alsa: pcm: oss: Fix negative period/buffer sizes (git-fixes).
• alsa: pcm: oss: Handle missing errors in snd_pcm_oss_change_params*() (git-fixes).
• alsa: pcm: oss: Limit the period size to 16MB (git-fixes).
• alsa: usb-audio: Drop superfluous '0' in Presonus Studio 1810c's ID (git-fixes).
• alsa: usb-audio: Line6 HX-Stomp XL USB_ID for 48k-fixed quirk (git-fixes).
• amd/display: downgrade validation failure log level (git-fixes).
• arm64: Kconfig: add a choice for endianness (jsc#SLE-23432).
• asoc: codecs: wcd934x: handle channel mappping list correctly (git-fixes).
• asoc: codecs: wcd934x: return correct value from mixer put (git-fixes).
• asoc: codecs: wcd934x: return error code correctly from hw_params (git-fixes).
• asoc: codecs: wsa881x: fix return values from kcontrol put (git-fixes).
• asoc: cs42l42: Correct configuring of switch inversion from ts-inv (git-fixes).
• asoc: cs42l42: Disable regulators if probe fails (git-fixes).
• asoc: cs42l42: Use device_property API instead of of_property (git-fixes).
• asoc: fsl_asrc: refine the…

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

The following security bugs were fixed:

• CVE-2021-4083: Fixed race condition in Unix domain socket garbage collection that could lead to read memory after free (bsc#1193727).
• CVE-2021-4135: Fixed an information leak in the nsim_bpf_map_alloc function (bsc#1193927).
• CVE-2021-4149: Fixed improper lock operation in btrfs that allowed users to crash the kernel or deadlock the system (bsc#1194001).
• CVE-2021-4197: Fixed a cgroup issue where lower privileged processes could write to fds of lower privileged ones that could lead to privilege escalation (bsc#1194302).
• CVE-2021-4202: Fixed race condition in nci_request() that could cause use-after-free (bsc#1194529).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem in the Linux kernel that occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-45485: Fixed an information leak because of certain use of a hash table which use IPv6 source addresses (bsc#1194094).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2022-0185: Incorrect param length parsing in legacy_parse_param which could have led to a local privilege escalation (bsc#1194517).
• CVE-2022-0322: Fixed a denial of service in SCTP sctp_addto_chunk (bsc#1194985).

The following non-security bugs were fixed:

• ext4: Avoid trim error on fs with small groups (bsc#1191271).
• fget: clarify and improve __fget_files() implementation (bsc#1193727).
• kabi/severities: Add a kabi exception for drivers/tee/tee
• kprobes: Limit max data_size of the kretprobe instances (bsc#1193669).
• livepatch: Avoid CPU hogging with cond_resched (bsc#1071995).
• media: Revert 'media: uvcvideo: Set unique vdev name based in type' (bsc#1193255).
• moxart: fix potential use-after-free on remove path (bsc#1194516).
• powerpc/fadump: Fix inaccurate CPU state info in vmcore generated with panic (bsc#1193901).
• powerpc: handle kdump appropriately with crash_kexec_post_notifiers option (bsc#1193901).
• tpm: fix potential NULL pointer access in tpm_del_char_device (bsc#1184209, bsc#1193660).
• vfs: check fd has read access in kernel_read_file_from_fd() (bsc#1194888).

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

The following security bugs were fixed:

• CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).
• CVE-2019-0136: Fixed insufficient access control in the Intel(R) PROSet/Wireless WiFi Software driver that may have allowed an unauthenticated user to potentially enable denial of service via adjacent access (bnc#1193157).
• CVE-2020-35519: Fixed out-of-bounds memory access in x25_bind in net/x25/af_x25.c. A bounds check failure allowed a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information (bnc#1183696).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-33098: Fixed improper input validation in the Intel(R) Ethernet ixgbe driver that may have allowed an authenticated user to potentially cause denial of service via local access (bnc#1192877).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4155: Fixed XFS map issue when unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate (bsc#1194272).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-43976: Fixed insufficient access control in drivers/net/wireless/marvell/mwifiex/usb.c that allowed an attacker who connect a crafted USB device to cause denial of service (bnc#1192847).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-45485: Fixed information leak in the IPv6 implementation in net/ipv6/output_core.c (bnc#1194094).
• CVE-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table (bnc#1194087).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).

The following non-security bugs were fixed:

-…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2020-28097: Fixed out-of-bounds read in vgacon subsystem that mishandled software scrollback (bnc#1187723).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).
• CVE-2022-22942: Fixed stale file descriptors on failed usercopy (bsc#1195065).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).

The following non-security bugs were fixed:

• KVM: remember position in kvm->vcpus array (bsc#1190973).
• KVM: s390: index kvm->arch.idle_mask by vcpu_idx (bsc#1190973).
• SUNRPC: Add basic load balancing to the transport switch - kabi fix. (bnc#1192729).
• SUNRPC: Add basic load balancing to the transport switch. (bnc#1192729)
• SUNRPC: Fix initialisation of struct rpc_xprt_switch (bnc#1192729).
• SUNRPC: Optimise transport balancing code (bnc#1192729).
• SUNRPC: Replace division by multiplication in calculation of queue length (bnc#1192729).
• SUNRPC: Skip zero-refcount transports (bnc#1192729).
• USB: serial: option: add Telit FN990 compositions (git-fixes).
• bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds() (bsc#1194227).
• crypto: qat - fix undetected PFVF timeout in ACK loop (git-fixes).
• ext4: set csum seed in tmp inode while migrating to extents (bsc#1195272).
• fget: clarify and improve __fget_files() implementation (bsc#1193727).
• hv_netvsc: Set needed_headroom according to VF (bsc#1193507).
• ibmvnic: Allow extra failures before disabling (bsc#1195073 ltc#195713).
• ibmvnic: do not spin in tasklet (bsc#1195073 ltc#195713).
• ibmvnic: init ->running_cap_crqs early (bsc#1195073 ltc#195713).
• ibmvnic: remove unused ->wait_capability (bsc#1195073 ltc#195713).
• kABI fixup after adding vcpu_idx to struct kvm_cpu (bsc#1190973).
• kabi: mask new member 'empty' of struct Qdisc (bsc#1183405).
• kabi: revert drop of Qdisc::atomic_qlen (bsc#1183405).
• kprobes: Limit max data_size of the kretprobe instances (bsc#1193669).
• livepatch: Avoid CPU hogging with cond_resched (bsc#1071995).
• memstick: rtsx_usb_ms: fix UAF (bsc#1194516).
• mm/hwpoison: do not lock page again when…

The SUSE Linux Enterprise 15 SP1 LTSS kernel was updated to receive various security and bugfixes.

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2019-15126: Fixed a vulnerability in Broadcom…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-45486: Fixed an information leak because the hash table is very small in net/ipv4/route.c (bnc#1194087).
• CVE-2021-0920: Fixed a local privilege escalation due to an use after free bug in unix_gc (bsc#1193731).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28714: Fixed issue with xen/netback to handle rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could happen if removing device (bsc#1179599).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-43975: hw_atl_utils_fw_rpc_wait in drivers/net/ethernet/aquantia/atlantic/hw_atl/hw_atl_utils.c allowed an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value (bnc#1192845).
• CVE-2021-33098: Improper input validation in the Intel(R) Ethernet ixgbe driver for Linux before version 3.17.3 may have allowed an authenticated…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table (bnc#1194087).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2021-43976: Fixed a flaw that could allow an attacker (who can connect a crafted USB device) to cause a denial of service. (bnc#1192847)
• CVE-2021-43975: Fixed a flaw in hw_atl_utils_fw_rpc_wait that could allow an attacker (who can introduce a crafted device) to trigger an out-of-bounds write via a crafted length value. (bsc#1192845)
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4002: Fixed a missing TLB flush that could lead to leak or corruption of data in hugetlbfs. (bsc#1192946)
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-33098: Fixed a potential denial of service in Intel(R) Ethernet ixgbe driver due to improper input validation. (bsc#1192877)
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-28714: Fixed issue with xen/netback to add rx queue stall detection (XSA-392) (bsc#1193442).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-0920: Fixed use after free bug due to a race condition in unix_scm_to_skb of af_unix.c. This could have led to local escalation of privilege with System execution privileges needed (bnc#1193731).
• CVE-2020-27820: Fixed a vulnerability where a use-after-frees in nouveau's postclose() handler could…

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2020-28097: Fixed out-of-bounds read in vgacon subsystem that mishandled software scrollback (bnc#1187723).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).
• CVE-2022-22942: Fixed stale file descriptors on failed usercopy (bsc#1195065).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4159: Fixed kernel ptr leak vulnerability via BPF in coerce_reg_to_size (bsc#1194227).

The following non-security bugs were fixed:

• KVM: remember position in kvm->vcpus array (bsc#1190973).
• KVM: s390: index kvm->arch.idle_mask by vcpu_idx (bsc#1190973).
• SUNRPC: Add basic load balancing to the transport switch - kabi fix. (bnc#1192729).
• SUNRPC: Add basic load balancing to the transport switch. (bnc#1192729)
• SUNRPC: Fix initialisation of struct rpc_xprt_switch (bnc#1192729).
• SUNRPC: Optimise transport balancing code (bnc#1192729).
• SUNRPC: Replace division by multiplication in calculation of queue length (bnc#1192729).
• SUNRPC: Skip zero-refcount transports (bnc#1192729).
• USB: serial: option: add Telit FN990 compositions (git-fixes).
• crypto: qat - fix undetected PFVF timeout in ACK loop (git-fixes).
• ext4: set csum seed in tmp inode while migrating to extents (bsc#1195272).
• fget: clarify and improve __fget_files() implementation (bsc#1193727).
• hv_netvsc: Set needed_headroom according to VF (bsc#1193507).
• ibmvnic: Allow extra failures before disabling (bsc#1195073 ltc#195713).
• ibmvnic: do not spin in tasklet (bsc#1195073 ltc#195713).
• ibmvnic: init ->running_cap_crqs early (bsc#1195073 ltc#195713).
• ibmvnic: remove unused ->wait_capability (bsc#1195073 ltc#195713).
• kABI fixup after adding vcpu_idx to struct kvm_cpu (bsc#1190973).
• kabi: mask new member 'empty' of struct Qdisc (bsc#1183405).
• kabi: revert drop of Qdisc::atomic_qlen (bsc#1183405).
• livepatch: Avoid CPU hogging with cond_resched (bsc#1071995).
• memstick: rtsx_usb_ms: fix UAF (bsc#1194516).
• mm/hwpoison: do not lock page again when me_huge_page() successfully recovers (bsc#1194814).
• moxart: fix potential use-after-free on remove path (bsc#1194516).
• net, xdp: Introduce xdp_init_buff…

This update for the Linux Kernel 5.3.18-59_37 fixes several issues.

The following security issues were fixed:

• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194533).
• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195308).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1194460).

This update for the Linux Kernel 5.3.18-59_27 fixes several issues.

The following security issues were fixed:

• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194533).
• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195308).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1194460).

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

The following security bugs were fixed:

• CVE-2018-25020: Fixed an overflow in the BPF subsystem due to a mishandling of a long jump over an instruction sequence where inner instructions require substantial expansions into multiple BPF instructions. This affects kernel/bpf/core.c and net/core/filter.c (bnc#1193575).
• CVE-2019-0136: Fixed insufficient access control in the Intel(R) PROSet/Wireless WiFi Software driver that may have allowed an unauthenticated user to potentially enable denial of service via adjacent access (bnc#1193157).
• CVE-2020-35519: Fixed out-of-bounds memory access in x25_bind in net/x25/af_x25.c. A bounds check failure allowed a local attacker with a user account on the system to gain access to out-of-bounds memory, leading to a system crash or a leak of internal kernel information (bnc#1183696).
• CVE-2021-0935: Fixed possible out of bounds write in ip6_xmit of ip6_output.c due to a use after free. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation (bnc#1192032).
• CVE-2021-28711: Fixed issue with xen/blkfront to harden blkfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28712: Fixed issue with xen/netfront to harden netfront against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28713: Fixed issue with xen/console to harden hvc_xen against event channel storms (XSA-391) (bsc#1193440).
• CVE-2021-28715: Fixed issue with xen/netback to do not queue unlimited number of packages (XSA-392) (bsc#1193442).
• CVE-2021-33098: Fixed improper input validation in the Intel(R) Ethernet ixgbe driver that may have allowed an authenticated user to potentially cause denial of service via local access (bnc#1192877).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-4002: Fixed incorrect TLBs flush in hugetlbfs after huge_pmd_unshare (bsc#1192946).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4155: Fixed XFS map issue when unwritten blocks in XFS_IOC_{ALLOC,FREE}SP just like fallocate (bsc#1194272).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-43976: Fixed insufficient access control in drivers/net/wireless/marvell/mwifiex/usb.c that allowed an attacker who connect a crafted USB device to cause denial of service (bnc#1192847).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2021-45485: Fixed information leak in the IPv6 implementation in net/ipv6/output_core.c (bnc#1194094).
• CVE-2021-45486: Fixed information leak inside the IPv4 implementation caused by very small hash table (bnc#1194087).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).

The following non-security bugs were fixed:

-…

This update for the Linux Kernel 4.4.180-94_138 fixes several issues.

The following security issues were fixed:

• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194533).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1194460).

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

The following security bugs were fixed:

• CVE-2022-0435: Fixed remote stack overflow in net/tipc module that validate domain record count on input (bsc#1195254).
• CVE-2022-24448: Fixed an issue inside fs/nfs/dir.c if an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup (bnc#1195612).
• CVE-2021-3564: Fixed double-free memory corruption in the Linux kernel HCI device initialization subsystem that could have been used by attaching malicious HCI TTY Bluetooth devices. A local user could use this flaw to crash the system (bnc#1186207).
• CVE-2020-28097: Fixed out-of-bounds read in vgacon subsystem that mishandled software scrollback (bnc#1187723).
• CVE-2021-45095: Fixed refcount leak in pep_sock_accept in net/phonet/pep.c (bnc#1193867).
• CVE-2022-22942: Fixed stale file descriptors on failed usercopy (bsc#1195065).
• CVE-2021-39657: Fixed out of bounds read due to a missing bounds check in ufshcd_eh_device_reset_handler of ufshcd.c. This could lead to local information disclosure with System execution privileges needed (bnc#1193864).
• CVE-2021-39648: Fixed possible disclosure of kernel heap memory due to a race condition in gadget_dev_desc_UDC_show of configfs.c. This could lead to local information disclosure with System execution privileges needed. User interaction is not needed for exploitation (bnc#1193861).
• CVE-2021-44733: Fixed a use-after-free exists in drivers/tee/tee_shm.c in the TEE subsystem, that could have occured because of a race condition in tee_shm_get_from_id during an attempt to free a shared memory object (bnc#1193767).
• CVE-2022-0330: Fixed flush TLBs before releasing backing store (bsc#1194880).
• CVE-2022-0322: Fixed SCTP issue with account stream padding length for reconf chunk (bsc#1194985).
• CVE-2021-4197: Use cgroup open-time credentials for process migraton perm checks (bsc#1194302).
• CVE-2021-4202: Fixed NFC race condition by adding NCI_UNREG flag (bsc#1194529).
• CVE-2021-4083: Fixed a read-after-free memory flaw inside the garbage collection for Unix domain socket file handlers when users call close() and fget() simultaneouslyand can potentially trigger a race condition (bnc#1193727).
• CVE-2021-4149: Fixed btrfs unlock newly allocated extent buffer after error (bsc#1194001).
• CVE-2021-4135: Fixed zero-initialize memory inside netdevsim for new map's value in function nsim_bpf_map_alloc (bsc#1193927).

The following non-security bugs were fixed:

• KVM: remember position in kvm->vcpus array (bsc#1190973).
• KVM: s390: index kvm->arch.idle_mask by vcpu_idx (bsc#1190973).
• SUNRPC: Add basic load balancing to the transport switch - kabi fix. (bnc#1192729).
• SUNRPC: Add basic load balancing to the transport switch. (bnc#1192729)
• SUNRPC: Fix initialisation of struct rpc_xprt_switch (bnc#1192729).
• SUNRPC: Optimise transport balancing code (bnc#1192729).
• SUNRPC: Replace division by multiplication in calculation of queue length (bnc#1192729).
• SUNRPC: Skip zero-refcount transports (bnc#1192729).
• USB: serial: option: add Telit FN990 compositions (git-fixes).
• bpf: Verifer, adjust_scalar_min_max_vals to always call update_reg_bounds() (bsc#1194227).
• crypto: qat - fix undetected PFVF timeout in ACK loop (git-fixes).
• ext4: set csum seed in tmp inode while migrating to extents (bsc#1195272).
• fget: clarify and improve __fget_files() implementation (bsc#1193727).
• hv_netvsc: Set needed_headroom according to VF (bsc#1193507).
• ibmvnic: Allow extra failures before disabling (bsc#1195073 ltc#195713).
• ibmvnic: do not spin in tasklet (bsc#1195073 ltc#195713).
• ibmvnic: init ->running_cap_crqs early (bsc#1195073 ltc#195713).
• ibmvnic: remove unused ->wait_capability (bsc#1195073 ltc#195713).
• kABI fixup after adding vcpu_idx to struct kvm_cpu (bsc#1190973).
• kabi: mask new member 'empty' of struct Qdisc (bsc#1183405).…

Jeremy Cline discovered a use-after-free in the nouveau graphics driver of the Linux kernel during device removal. A privileged or physically proximate attacker could use this to cause a denial of service (system crash). (CVE-2020-27820)

It was discovered that the Bluetooth subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3640)

Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3752)

It was discovered that the SCTP protocol implementation in the Linux kernel did not properly verify VTAGs in some situations. A remote attacker could possibly use this to cause a denial of service (connection disassociation). (CVE-2021-3772)

It was discovered that the eBPF implementation in the Linux kernel contained a race condition around read-only maps. A privileged attacker could use this to modify read-only maps. (CVE-2021-4001)

It was discovered that the NFS server implementation in the Linux kernel contained an out-of-bounds write vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4090)

Felix Wilhelm discovered that the KVM implementation in the Linux kernel did not properly handle exit events from AMD Secure Encrypted Virtualization-Encrypted State (SEV-ES) guest VMs. An attacker in a guest VM could use this to cause a denial of service (host kernel crash) or possibly execute arbitrary code in the host kernel. (CVE-2021-4093)

Lin Ma discovered that the NFC Controller Interface (NCI) 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 possibly execute arbitrary code. (CVE-2021-4202)

It was discovered that the AMD Radeon GPU driver in the Linux kernel did not properly validate writes in the debugfs file system. A privileged attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42327)

Luo Likang discovered that the FireDTV Firewire driver in the Linux kernel did not properly perform bounds checking in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-42739)

It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-22600)

Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-39685)

Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4083)

Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. (CVE-2021-4155)

Lin Ma discovered that the NFC Controller Interface (NCI) 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 possibly execute arbitrary code. (CVE-2021-4202)

Brendan Dolan-Gavitt discovered that the aQuantia AQtion Ethernet device driver in the Linux kernel did not properly validate meta-data coming from the device. A local attacker who can control an emulated device can use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-43975)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-0330)

It was discovered that the VMware Virtual GPU driver in the Linux kernel did not properly handle certain failure conditions, leading to a stale entry in the file descriptor table. A local attacker could use this to expose sensitive information or possibly gain administrative privileges. (CVE-2022-22942)

It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-22600)

Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-39685)

Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4083)

Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. (CVE-2021-4155)

Lin Ma discovered that the NFC Controller Interface (NCI) 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 possibly execute arbitrary code. (CVE-2021-4202)

Brendan Dolan-Gavitt discovered that the aQuantia AQtion Ethernet device driver in the Linux kernel did not properly validate meta-data coming from the device. A local attacker who can control an emulated device can use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-43975)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-0330)

It was discovered that the VMware Virtual GPU driver in the Linux kernel did not properly handle certain failure conditions, leading to a stale entry in the file descriptor table. A local attacker could use this to expose sensitive information or possibly gain administrative privileges. (CVE-2022-22942)

Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-39685)

Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4083)

Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. (CVE-2021-4155)

Lin Ma discovered that the NFC Controller Interface (NCI) 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 possibly execute arbitrary code. (CVE-2021-4202)

Brendan Dolan-Gavitt discovered that the aQuantia AQtion Ethernet device driver in the Linux kernel did not properly validate meta-data coming from the device. A local attacker who can control an emulated device can use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-43975)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-0330)

It was discovered that the VMware Virtual GPU driver in the Linux kernel did not properly handle certain failure conditions, leading to a stale entry in the file descriptor table. A local attacker could use this to expose sensitive information or possibly gain administrative privileges. (CVE-2022-22942)

It was discovered that the Packet network protocol implementation in the Linux kernel contained a double-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-22600)

Jürgen Groß discovered that the Xen subsystem within the Linux kernel did not adequately limit the number of events driver domains (unprivileged PV backends) could send to other guest VMs. An attacker in a driver domain could use this to cause a denial of service in other guest VMs. (CVE-2021-28711, CVE-2021-28712, CVE-2021-28713)

Jürgen Groß discovered that the Xen network backend driver in the Linux kernel did not adequately limit the amount of queued packets when a guest did not process them. An attacker in a guest VM can use this to cause a denial of service (excessive kernel memory consumption) in the network backend domain. (CVE-2021-28714, CVE-2021-28715)

Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-39685)

Jann Horn discovered a race condition in the Unix domain socket implementation in the Linux kernel that could result in a read-after-free. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-4083)

Kirill Tkhai discovered that the XFS file system implementation in the Linux kernel did not calculate size correctly when pre-allocating space in some situations. A local attacker could use this to expose sensitive information. (CVE-2021-4155)

Lin Ma discovered that the NFC Controller Interface (NCI) 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 possibly execute arbitrary code. (CVE-2021-4202)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-0330)

It was discovered that the VMware Virtual GPU driver in the Linux kernel did not properly handle certain failure conditions, leading to a stale entry in the file descriptor table. A local attacker could use this to expose sensitive information or possibly gain administrative privileges. (CVE-2022-22942)

Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. (CVE-2021-4197)

Lin Ma discovered that the NFC Controller Interface (NCI) 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 possibly execute arbitrary code. (CVE-2021-4202)

It was discovered that the PF_KEYv2 implementation in the Linux kernel did not properly initialize kernel memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-1353)

It was discovered that the virtual graphics memory manager implementation in the Linux kernel was subject to a race condition, potentially leading to an information leak. (CVE-2022-1419)

Minh Yuan discovered that the floppy disk driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1652)

It was discovered that the Atheros ath9k wireless device driver in the Linux kernel did not properly handle some error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1679)

It was discovered that the Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1734)

赵子轩 discovered that the 802.2 LLC type 2 driver in the Linux kernel did not properly perform reference counting in some error conditions. A local attacker could use this to cause a denial of service. (CVE-2022-28356)

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

Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3752)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-39685)

It was discovered that the Ion Memory Manager subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-39714)

Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. (CVE-2021-4197)

Lin Ma discovered that the NFC Controller Interface (NCI) 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 possibly execute arbitrary code. (CVE-2021-4202)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-0330)

It was discovered that the PF_KEYv2 implementation in the Linux kernel did not properly initialize kernel memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-1353)

It was discovered that the virtual graphics memory manager implementation in the Linux kernel was subject to a race condition, potentially leading to an information leak. (CVE-2022-1419)

Minh Yuan discovered that the floppy disk driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1652)

It was discovered that the Atheros ath9k wireless device driver in the Linux kernel did not properly handle some error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1679)

It was discovered that the Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1734)

It was discovered that some Intel processors did not completely perform cleanup actions on multi-core shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123)

It was discovered that some Intel processors did not completely perform cleanup actions on microarchitectural fill buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21125)

It was discovered that some Intel processors did not properly perform…

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

Likang Luo discovered that a race condition existed in the Bluetooth subsystem of the Linux kernel, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-3752)

It was discovered that the NFC subsystem in the Linux kernel contained a use-after-free vulnerability in its NFC Controller Interface (NCI) implementation. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-3760)

Szymon Heidrich discovered that the USB Gadget subsystem in the Linux kernel did not properly restrict the size of control requests for certain gadget types, leading to possible out of bounds reads or writes. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2021-39685)

It was discovered that the Ion Memory Manager subsystem in the Linux kernel contained a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2021-39714)

Eric Biederman discovered that the cgroup process migration implementation in the Linux kernel did not perform permission checks correctly in some situations. A local attacker could possibly use this to gain administrative privileges. (CVE-2021-4197)

Lin Ma discovered that the NFC Controller Interface (NCI) 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 possibly execute arbitrary code. (CVE-2021-4202)

Sushma Venkatesh Reddy discovered that the Intel i915 graphics driver in the Linux kernel did not perform a GPU TLB flush in some situations. A local attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2022-0330)

It was discovered that the PF_KEYv2 implementation in the Linux kernel did not properly initialize kernel memory in some situations. A local attacker could use this to expose sensitive information (kernel memory). (CVE-2022-1353)

It was discovered that the virtual graphics memory manager implementation in the Linux kernel was subject to a race condition, potentially leading to an information leak. (CVE-2022-1419)

Minh Yuan discovered that the floppy disk driver in the Linux kernel contained a race condition, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1652)

It was discovered that the Atheros ath9k wireless device driver in the Linux kernel did not properly handle some error conditions, leading to a use-after-free vulnerability. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2022-1679)

It was discovered that the Marvell NFC device driver implementation in the Linux kernel did not properly perform memory cleanup operations in some situations, leading to a use-after-free vulnerability. A local attacker could possibly use this to cause a denial of service (system crash) or execute arbitrary code. (CVE-2022-1734)

It was discovered that some Intel processors did not completely perform cleanup actions on multi-core shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123)

It was discovered that some Intel processors did not completely perform cleanup actions on microarchitectural fill buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21125)

It was discovered that some Intel processors did not properly perform…