CVEvulnerability
CVE-2026-53309
9.8 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-26
- Last modified
- 2026-07-06
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-193
Description
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.
Affected configurations
• linux linux kernel (>= 2.6.37 < 5.10.258)
• linux linux kernel (>= 5.11 < 5.15.209)
• linux linux kernel (>= 5.16 < 6.1.175)
• linux linux kernel (>= 6.2 < 6.6.141)
• linux linux kernel (>= 6.7 < 6.12.91)
• linux linux kernel (>= 6.13 < 6.18.33)
• linux linux kernel (>= 6.19 < 7.0.10)
Related
Weakness · CWE (1)
- CWE-193 Off-by-one Error weakness
References
- https://git.kernel.org/stable/c/01b61e8dda9b0fdb0d4cda43de25f4e390554d7b Patch
- https://git.kernel.org/stable/c/1fb7f356547d9688822315cd2b205ff0bd5429b4 Patch
- https://git.kernel.org/stable/c/2a0673836f019e7c032acbf48d022d5ccf02a845 Patch
- https://git.kernel.org/stable/c/426cd8eedac89b86148d4478990eeef16e8a2520 Patch
- https://git.kernel.org/stable/c/760ab35040aca8399021fdb9ff1db1089feb7194 Patch
- https://git.kernel.org/stable/c/819d8ebad3200a53de99bd7e297bc428e41ced54 Patch
- https://git.kernel.org/stable/c/c60a2710b73838d250cda57344c049b89abc5d52 Patch
- https://git.kernel.org/stable/c/d5403ae28085761d58b555645bc7d5feadb10073 Patch