Improper error handling in Linux kernel - CVE-2025-68771
Published: January 14, 2026
Vulnerability identifier: #VU121419
CSH Severity: Low
CVSS v4.0: 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-2025-68771
CWE-ID: CWE-388
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vendor: Linux Foundation
Affected software:
Linux kernel
Linux kernel
Detailed vulnerability description
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to improper error handling within the ocfs2_claim_suballoc_bits() function in fs/ocfs2/suballoc.c. A local user can perform a denial of service (DoS) attack.
How to mitigate CVE-2025-68771
Install update from vendor's repository.
Sources
- https://git.kernel.org/stable/c/039bef30e320827bac8990c9f29d2a68cd8adb5f
- https://git.kernel.org/stable/c/7acc0390e0dd7474c4451d05465a677d55ad4268
- https://git.kernel.org/stable/c/96f1b074c98c20f55a3b23d2ab44d9fb0f619869
- https://git.kernel.org/stable/c/b08a33d5f80efe6979a6e8f905c1a898910c21dd
- https://git.kernel.org/stable/c/e24aedae71652d4119049f1fbef6532ccbe3966d