ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison
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.
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- 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
- https://git.kernel.org/stable/c/819d8ebad3200a53de99bd7e297bc428e41ced54
- https://git.kernel.org/stable/c/c60a2710b73838d250cda57344c049b89abc5d52
- https://git.kernel.org/stable/c/d5403ae28085761d58b555645bc7d5feadb10073
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53309.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-53309