CVSS 3.1
9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE-2026-53309
Critical (9.8) in linux linux kernel. EPSS 0.4% chance of exploitation in the next 30 days.
In the Linux kernel, the following vulnerability has been resolved:
ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison
The local-vs-remote region comparison loop uses '<=' instead of '<',
causing it to read one entry past the valid range of qr_regions. The
other loops in the same function correctly use '<'.
Fix the loop condition to use '<' for consistency and correctness.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 34% of CVEs (scores of 2026-10-31)
- CWE
- CWE-193
- Published
- Modified
- Record from
- the NVD, synced
Affected
- linux:linux_kernel
References
- https://git.kernel.org/stable/c/01b61e8dda9b0fdb0d4cda43de25f4e390554d7b
- https://git.kernel.org/stable/c/1fb7f356547d9688822315cd2b205ff0bd5429b4
- https://git.kernel.org/stable/c/2a0673836f019e7c032acbf48d022d5ccf02a845
- https://git.kernel.org/stable/c/426cd8eedac89b86148d4478990eeef16e8a2520
- https://git.kernel.org/stable/c/760ab35040aca8399021fdb9ff1db1089feb7194