NULL pointer dereference in Linux kernel - CVE-2022-49428

Vulnerability identifier: #VU104570

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-2022-49428

CWE-ID: CWE-476

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 NULL pointer dereference within the __recover_dot_dentries() function in fs/f2fs/namei.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 5.17.14
kernel - update to 4.19.90-2512.4.0.0356
bpftool - update to 4.19.90-2512.4.0.0356
bpftool-debuginfo - update to 4.19.90-2512.4.0.0356
kernel-debuginfo - update to 4.19.90-2512.4.0.0356
kernel-debugsource - update to 4.19.90-2512.4.0.0356
kernel-devel - update to 4.19.90-2512.4.0.0356
kernel-source - update to 4.19.90-2512.4.0.0356
kernel-tools - update to 4.19.90-2512.4.0.0356
kernel-tools-debuginfo - update to 4.19.90-2512.4.0.0356
kernel-tools-devel - update to 4.19.90-2512.4.0.0356
perf - update to 4.19.90-2512.4.0.0356
perf-debuginfo - update to 4.19.90-2512.4.0.0356
python2-perf - update to 4.19.90-2512.4.0.0356
python2-perf-debuginfo - update to 4.19.90-2512.4.0.0356
python3-perf - update to 4.19.90-2512.4.0.0356
python3-perf-debuginfo - update to 4.19.90-2512.4.0.0356

• https://git.kernel.org/stable/c/12662d19467b391b5b509ac5e9ab4f583c6dde16
• https://git.kernel.org/stable/c/250e5a6be52a6b9d82fe91976c83cc158868b4e9
• https://git.kernel.org/stable/c/2f46160d0a19b13bfe96c0dd50eed5c5d253ab7a
• https://git.kernel.org/stable/c/34f48ce5d5936eea33e3b6415403e57eb84aff97
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17.14

• NULL pointer dereference in Linux kernel f2fs
• openEuler 20.03 LTS SP4 update for kernel