Improper locking in Linux kernel - CVE-2025-22127

Vulnerability identifier: #VU107740

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-2025-22127

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 f2fs_read_multi_pages() function in fs/f2fs/data.c, within the f2fs_compress_ctx_add_page() function in fs/f2fs/compress.c. A local user can perform a denial of service (DoS) attack.

Linux kernel
Anolis OS
openEuler
Ubuntu
python3-perf-debuginfo
python3-perf
perf-debuginfo
perf
kernel-tools-devel
kernel-tools-debuginfo
kernel-tools
kernel-source
kernel-headers
kernel-devel
kernel-debugsource
kernel-debuginfo
bpftool-debuginfo
bpftool
kernel
kernel-tools-libs-devel
kernel-tools-libs
kernel-debug-devel
kernel-debug
linux (Ubuntu package)
linux-aws (Ubuntu package)
linux-azure (Ubuntu package)

Install update from vendor's website.

Linux kernel - update to 6.14.2
python3-perf-debuginfo - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
python3-perf - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
perf-debuginfo - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
perf - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel-tools-devel - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel-tools-debuginfo - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel-tools - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel-source - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel-headers - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel-devel - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel-debugsource - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel-debuginfo - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
bpftool-debuginfo - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
bpftool - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
kernel - addressed in versions 6.6.0-95.0.0.88, 6.6.0-95.0.0.99
python3-perf - update to 6.6.102-6
perf - update to 6.6.102-6
kernel-tools-libs-devel - update to 6.6.102-6
kernel-tools-libs - update to 6.6.102-6
kernel-tools - update to 6.6.102-6
kernel-headers - update to 6.6.102-6
kernel-devel - update to 6.6.102-6
kernel-debug-devel - update to 6.6.102-6
kernel-debug - update to 6.6.102-6
kernel - update to 6.6.102-6
bpftool - update to 6.6.102-6
linux (Ubuntu package) - addressed in versions 6.14.0-22.22, 6.14.0-1004.4, 6.14.0-1007.7, 6.14.0-1008.8
linux-aws (Ubuntu package) - addressed in versions 6.14.0-1007.7, 6.14.0-1007.7+1
linux-azure (Ubuntu package) - update to 6.14.0-1007.7

• https://git.kernel.org/stable/c/3147ee567dd9004a49826ddeaf0a4b12865d4409
• https://git.kernel.org/stable/c/7215cf8ef54bdc9082dffac4662416d54961e258
• https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.14.2

• Improper locking in Linux kernel f2fs
• openEuler 24.03 LTS SP1 update for kernel
• openEuler 24.03 LTS update for kernel
• Ubuntu update for linux
• Ubuntu update for linux-azure
• Ubuntu update for linux-aws
• Anolis OS update for kernel:6.6