Memory leak in Linux kernel - CVE-2022-50025

Vulnerability identifier: #VU111394

CSH Severity: Low

CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2022-50025

CWE-ID: CWE-401

Exploitation vector: Local access

Exploit availability: No public exploit available

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to memory leak within the afu_allocate_irqs() function in drivers/misc/cxl/irq.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server 12 SP5 LTSS Extended
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Live Patching
kgraft-patch-4_12_14-122_269-default
kernel-syms
kernel-default-kgraft-devel
kernel-default-kgraft
kernel-default-devel-debuginfo
kernel-default-man
kernel-devel
kernel-source
kernel-macros
kernel-default
cluster-md-kmp-default-debuginfo
dlm-kmp-default-debuginfo
gfs2-kmp-default-debuginfo
ocfs2-kmp-default-debuginfo
kernel-default-base-debuginfo
dlm-kmp-default
cluster-md-kmp-default
kernel-default-base
gfs2-kmp-default
kernel-default-devel
kernel-default-debuginfo
kernel-default-debugsource
ocfs2-kmp-default

Install update from vendor's repository.

Linux kernel - update to 4.9.326
kgraft-patch-4_12_14-122_269-default - update to 1-8.3.1
kernel-syms - update to 4.12.14-122.269.1
kernel-default-kgraft-devel - update to 4.12.14-122.269.1
kernel-default-kgraft - update to 4.12.14-122.269.1
kernel-default-devel-debuginfo - update to 4.12.14-122.269.1
kernel-default-man - update to 4.12.14-122.269.1
kernel-devel - update to 4.12.14-122.269.1
kernel-source - update to 4.12.14-122.269.1
kernel-macros - update to 4.12.14-122.269.1
kernel-default - update to 4.12.14-122.269.1
cluster-md-kmp-default-debuginfo - update to 4.12.14-122.269.1
dlm-kmp-default-debuginfo - update to 4.12.14-122.269.1
gfs2-kmp-default-debuginfo - update to 4.12.14-122.269.1
ocfs2-kmp-default-debuginfo - update to 4.12.14-122.269.1
kernel-default-base-debuginfo - update to 4.12.14-122.269.1
dlm-kmp-default - update to 4.12.14-122.269.1
cluster-md-kmp-default - update to 4.12.14-122.269.1
kernel-default-base - update to 4.12.14-122.269.1
gfs2-kmp-default - update to 4.12.14-122.269.1
kernel-default-devel - update to 4.12.14-122.269.1
kernel-default-debuginfo - update to 4.12.14-122.269.1
kernel-default-debugsource - update to 4.12.14-122.269.1
ocfs2-kmp-default - update to 4.12.14-122.269.1

• https://git.kernel.org/stable/c/3a15b45b5454da862376b5d69a4967f5c6fa1368
• https://git.kernel.org/stable/c/4be138bcd6d68cec0ce47051b117541061f5141a
• https://git.kernel.org/stable/c/6544ff559315498ad6c0a311359ca44987f9ca07
• https://git.kernel.org/stable/c/695af60af755873399ce01cb97176768828bc1fd
• https://git.kernel.org/stable/c/89d51dc6878c47b6400922fac21b6a33f9d1a588
• https://git.kernel.org/stable/c/addff638c41753639368c252d0c5ba0d8fe9ed97
• https://git.kernel.org/stable/c/c2557780ee7818b701681c226fa4cb7c0b171665
• https://git.kernel.org/stable/c/c2c7a29f99788e9e5dfe41d16868ea33da7cc235
• https://mirrors.edge.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.9.326

• Memory leak in Linux kernel misc cxl driver
• SUSE update for the Linux Kernel