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SUSE-SU-2022:3688-1 Not scored

Security update for the Linux Kernel

The SUSE Linux Enterprise 15 kernel was updated. The following security bugs were fixed: - CVE-2022-3303: Fixed a race condition in the sound subsystem due to improper locking (bnc#1203769). - CVE-2022-41218: Fixed an use-after-free caused by refcount races in drivers/media/dvb-core/dmxdev.c (bnc#1202960). - CVE-2022-3239: Fixed an use-after-free in the video4linux driver that could lead a local user to able to crash the system or escalate their privileges (bnc#1203552). - CVE-2022-41848: Fixed a race condition and resultant use-after-free if a physically proximate attacker removes a PCMCIA device while calling ioctl (bnc#1203987). - CVE-2022-2503: Fixed a bug in dm-verity, device-mapper table reloads allowed users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allowed root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates (bnc#1202677). The following non-security bugs were fixed: - dtb: Do not include sources in src.rpm - refer to kernel-source Same as other kernel binary packages there is no need to carry duplicate sources in dtb packages. - net: mana: Add rmb after checking owner bits (git-fixes). - net: mana: Add the Linux MANA PF driver (bug#1201309, jsc#PED-529). - x86/bugs: Reenable retbleed=off While for older kernels the return thunks are statically built in and cannot be dynamically patched out, retbleed=off should still be possible to do so that the mitigation can still be disabled on Intel who do not use the return thunks but IBRS.

Exploit probability Not scored
Published October 21, 2022
Required by Not available
Last source change February 4, 2026

02 / AFFECTED SOFTWARE

Affected packages

SUSE:Linux Enterprise High Availability Extension 15 kernel-default
SUSE:Linux Enterprise High Performance Computing 15-ESPOS kernel-default
SUSE:Linux Enterprise High Performance Computing 15-ESPOS kernel-docs
SUSE:Linux Enterprise High Performance Computing 15-ESPOS kernel-obs-build
SUSE:Linux Enterprise High Performance Computing 15-ESPOS kernel-source
SUSE:Linux Enterprise High Performance Computing 15-ESPOS kernel-syms
SUSE:Linux Enterprise High Performance Computing 15-ESPOS kernel-vanilla
SUSE:Linux Enterprise High Performance Computing 15-LTSS kernel-default
SUSE:Linux Enterprise High Performance Computing 15-LTSS kernel-docs
SUSE:Linux Enterprise High Performance Computing 15-LTSS kernel-obs-build
SUSE:Linux Enterprise High Performance Computing 15-LTSS kernel-source
SUSE:Linux Enterprise High Performance Computing 15-LTSS kernel-syms
SUSE:Linux Enterprise High Performance Computing 15-LTSS kernel-vanilla
SUSE:Linux Enterprise Live Patching 15 kernel-default
SUSE:Linux Enterprise Live Patching 15 kernel-livepatch-SLE15_Update_34
SUSE:Linux Enterprise Server 15-LTSS kernel-default
SUSE:Linux Enterprise Server 15-LTSS kernel-docs
SUSE:Linux Enterprise Server 15-LTSS kernel-obs-build
SUSE:Linux Enterprise Server 15-LTSS kernel-source
SUSE:Linux Enterprise Server 15-LTSS kernel-syms
SUSE:Linux Enterprise Server 15-LTSS kernel-vanilla
SUSE:Linux Enterprise Server 15-LTSS kernel-zfcpdump
SUSE:Linux Enterprise Server for SAP Applications 15 kernel-default
SUSE:Linux Enterprise Server for SAP Applications 15 kernel-docs
SUSE:Linux Enterprise Server for SAP Applications 15 kernel-obs-build
SUSE:Linux Enterprise Server for SAP Applications 15 kernel-source
SUSE:Linux Enterprise Server for SAP Applications 15 kernel-syms
SUSE:Linux Enterprise Server for SAP Applications 15 kernel-vanilla

03 / CONNECTIONS

Connected vulnerabilities

04 / EVIDENCE

Source records

Open Source Vulnerabilities SUSE-SU-2022:3688-1

The SUSE Linux Enterprise 15 kernel was updated. The following security bugs were fixed: - CVE-2022-3303: Fixed a race condition in the sound subsystem due to improper locking (bnc#1203769). - CVE-2022-41218: Fixed an use-after-free caused by refcount races in drivers/media/dvb-core/dmxdev.c (bnc#1202960). - CVE-2022-3239: Fixed an use-after-free in the video4linux driver that could lead a local user to able to crash the system or escalate their privileges (bnc#1203552). - CVE-2022-41848: Fixed a race condition and resultant use-after-free if a physically proximate attacker removes a PCMCIA device while calling ioctl (bnc#1203987). - CVE-2022-2503: Fixed a bug in dm-verity, device-mapper table reloads allowed users with root privileges to switch out the target with an equivalent dm-linear target and bypass verification till reboot. This allowed root to bypass LoadPin and can be used to load untrusted and unverified kernel modules and firmware, which implies arbitrary kernel execution and persistence for peripherals that do not verify firmware updates (bnc#1202677). The following non-security bugs were fixed: - dtb: Do not include sources in src.rpm - refer to kernel-source Same as other kernel binary packages there is no need to carry duplicate sources in dtb packages. - net: mana: Add rmb after checking owner bits (git-fixes). - net: mana: Add the Linux MANA PF driver (bug#1201309, jsc#PED-529). - x86/bugs: Reenable retbleed=off While for older kernels the return thunks are statically built in and cannot be dynamically patched out, retbleed=off should still be possible to do so that the mitigation can still be disabled on Intel who do not use the return thunks but IBRS.

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05 / REFERENCES

Further evidence