CVE-2026-53309
CRITICALDescription
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.
CVSS v3 Vector
Exploitability
Impact
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploit Intelligence
Low risk: more likely to be exploited than 32% of all known CVEs.
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
- https://git.kernel.org/stable/c/819d8ebad3200a53de99bd7e297bc428e41ced54
- https://git.kernel.org/stable/c/c60a2710b73838d250cda57344c049b89abc5d52
- https://git.kernel.org/stable/c/d5403ae28085761d58b555645bc7d5feadb10073
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Start freeThis product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-06-28.