Memory leak in Linux kernel - CVE-2022-49457

Vulnerability identifier: #VU104285

CSH Severity: Low

CVSS v4 BT: 1.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:U/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-49457

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 dcscb_init() function in arch/arm/mach-versatile/dcscb.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
openEuler
kernel
bpftool
bpftool-debuginfo
kernel-debuginfo
kernel-debugsource
kernel-devel
kernel-source
kernel-tools
kernel-tools-debuginfo
kernel-tools-devel
perf
perf-debuginfo
python2-perf
python2-perf-debuginfo
python3-perf
python3-perf-debuginfo

Install update from vendor's website.

Linux kernel - update to 5.4.198
kernel - update to 4.19.90-2504.1.0.0322
bpftool - update to 4.19.90-2504.1.0.0322
bpftool-debuginfo - update to 4.19.90-2504.1.0.0322
kernel-debuginfo - update to 4.19.90-2504.1.0.0322
kernel-debugsource - update to 4.19.90-2504.1.0.0322
kernel-devel - update to 4.19.90-2504.1.0.0322
kernel-source - update to 4.19.90-2504.1.0.0322
kernel-tools - update to 4.19.90-2504.1.0.0322
kernel-tools-debuginfo - update to 4.19.90-2504.1.0.0322
kernel-tools-devel - update to 4.19.90-2504.1.0.0322
perf - update to 4.19.90-2504.1.0.0322
perf-debuginfo - update to 4.19.90-2504.1.0.0322
python2-perf - update to 4.19.90-2504.1.0.0322
python2-perf-debuginfo - update to 4.19.90-2504.1.0.0322
python3-perf - update to 4.19.90-2504.1.0.0322
python3-perf-debuginfo - update to 4.19.90-2504.1.0.0322

• https://git.kernel.org/stable/c/23b44f9c649bbef10b45fa33080cd8b4166800ae
• https://git.kernel.org/stable/c/2d7b23db35254b7d46e852967090c64cdccf24da
• https://git.kernel.org/stable/c/3c6006faed9aba5144b33176d061031a9be66954
• https://git.kernel.org/stable/c/83c329b980bddbc8c6a3d287d91f2103a4d4a860
• https://git.kernel.org/stable/c/a0fc05cd17617e63fc13ad0c01f3f0afd890d8ec
• https://git.kernel.org/stable/c/bbdfb7d4f036118d36415a2575efa6f5246505ae
• https://git.kernel.org/stable/c/d146e2a9864ade19914494de3fb520390b415d58
• https://git.kernel.org/stable/c/d6de7b181c29cd4578ec139aafb5eac062abbe1b
• https://git.kernel.org/stable/c/fcd1999ba97445a12cc394f5f42ffd9116bf0185
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.4.198

• Memory leak in Linux kernel arm mach-versatile
• openEuler 20.03 LTS SP4 update for kernel