Vulnerability details
CVE-2026-53309
Linux Linux
ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison
CVSS 3.1
9.8Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 2.6.37 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ea2034416b54700e30371f2ad6517cbb94674083 ≤ v < c60a2710b73838d250cda57344c049b89abc5d52 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ea2034416b54700e30371f2ad6517cbb94674083 ≤ v < 2a0673836f019e7c032acbf48d022d5ccf02a845 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ea2034416b54700e30371f2ad6517cbb94674083 ≤ v < 819d8ebad3200a53de99bd7e297bc428e41ced54 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ea2034416b54700e30371f2ad6517cbb94674083 ≤ v < 760ab35040aca8399021fdb9ff1db1089feb7194 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ea2034416b54700e30371f2ad6517cbb94674083 ≤ v < 1fb7f356547d9688822315cd2b205ff0bd5429b4 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ea2034416b54700e30371f2ad6517cbb94674083 ≤ v < 426cd8eedac89b86148d4478990eeef16e8a2520 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ea2034416b54700e30371f2ad6517cbb94674083 ≤ v < 01b61e8dda9b0fdb0d4cda43de25f4e390554d7b | CVEProject cvelistV5 (CNA) |
| Linux | Linux | ea2034416b54700e30371f2ad6517cbb94674083 ≤ v < d5403ae28085761d58b555645bc7d5feadb10073 | CVEProject cvelistV5 (CNA) |
References and advisories
8- https://git.kernel.org/stable/c/760ab35040aca8399021fdb9ff1db1089feb7194
- https://git.kernel.org/stable/c/c60a2710b73838d250cda57344c049b89abc5d52
- https://git.kernel.org/stable/c/2a0673836f019e7c032acbf48d022d5ccf02a845
- https://git.kernel.org/stable/c/819d8ebad3200a53de99bd7e297bc428e41ced54
- https://git.kernel.org/stable/c/d5403ae28085761d58b555645bc7d5feadb10073
- https://git.kernel.org/stable/c/1fb7f356547d9688822315cd2b205ff0bd5429b4
- https://git.kernel.org/stable/c/426cd8eedac89b86148d4478990eeef16e8a2520
- https://git.kernel.org/stable/c/01b61e8dda9b0fdb0d4cda43de25f4e390554d7b
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Details
- Published
- 2026-06-26
- Last updated
- 2026-08-05
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.39%
Probability of exploitation in 30 days
34.3%
Percentile (among all CVEs)
Weaknesses (CWE)
- —