Improper locking in Linux kernel - CVE-2022-48902

Vulnerability identifier: #VU96435

CSH Severity: Low

CVSS v4 BT: 4.3 [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/E:U/U:Clear]

CVE-ID: CVE-2022-48902

CWE-ID: CWE-667

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 improper locking within the assert_eb_page_uptodate() function in fs/btrfs/extent_io.c. A local user can perform a denial of service (DoS) attack.

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

Install update from vendor's website.

Linux kernel - addressed in versions 5.15.27, 5.16.13, 5.17
perf-debuginfo - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
python3-perf-debuginfo - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
python3-perf - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
perf - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-tools-devel - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-tools-debuginfo - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-tools - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-source - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-headers - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-devel - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-debugsource - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
kernel-debuginfo - addressed in versions 5.10.0-136.93.0.174, 5.10.0-228.0.0.127, 5.10.0-228.0.0.130
bpftool-debuginfo - update to 5.10.0-228.0.0.127
bpftool - update to 5.10.0-228.0.0.127

• https://git.kernel.org/stable/c/e00077aa439f0e8f416699fa4e9600db6583db70
• https://git.kernel.org/stable/c/9efcc83b33b576302147634eca9bece8e3737e34
• https://git.kernel.org/stable/c/a50e1fcbc9b85fd4e95b89a75c0884cb032a3e06
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.27
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.16.13
• https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.17

• Improper locking in Linux kernel btrfs
• openEuler 22.03 LTS SP1 update for kernel
• openEuler 22.03 LTS SP4 update for kernel
• openEuler 22.03 LTS SP3 update for kernel