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CVE

CVE-2026-53309

ocfs2/dlm: fix off-by-one in dlm_match_regions() region comparison
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CVE

CVE-2026-53309

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 dlmmatchregions() 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.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

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, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53309.json, https://nvd.nist.gov/vuln/detail/CVE-2026-53309, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00404%
EPSS Percentile
0.32701%
Introduced Version
ea2034416b54700e30371f2ad6517cbb94674083,2.6.37,5.11.0,5.16.0,6.2.0,6.7.0,6.13.0,6.19.0,0
Fix Available
01b61e8dda9b0fdb0d4cda43de25f4e390554d7b,5.10.258,5.15.209,6.1.175,6.6.141,6.12.91,6.18.33,7.0.10,6.1.176-1,5.10.259-1,6.1.176-1~deb11u1,6.12.94-1

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