CVE-2026-53309

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

CRITICAL 9.8

At a glance

Source
NVD
EPSS
EPSS 0.40 % · percentile 34 ()
State
PUBLISHED
Published
Updated
Assigner
Linux
NVD status
Analyzed

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.

Weaknesses (CWE)

References

Scores

VersionScoreVectorScored by
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HLinux
CVSS 3.1CRITICAL 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary)

European references

CERT-FR advisories

Affected configurations (NVD CPE)

Affected products

ProductVersions
Linux · Linuxaffected ea2034416b54700e30371f2ad6517cbb94674083 < 760ab35040aca8399021fdb9ff1db1089feb7194 ; affected ea2034416b54700e30371f2ad6517cbb94674083 < c60a2710b73838d250cda57344c049b89abc5d52 ; affected ea2034416b54700e30371f2ad6517cbb94674083 < 2a0673836f019e7c032acbf48d022d5ccf02a845 ; affected ea2034416b54700e30371f2ad6517cbb94674083 < 819d8ebad3200a53de99bd7e297bc428e41ced54 ; affected ea2034416b54700e30371f2ad6517cbb94674083 < d5403ae28085761d58b555645bc7d5feadb10073 ; affected ea2034416b54700e30371f2ad6517cbb94674083 < 1fb7f356547d9688822315cd2b205ff0bd5429b4
Linux · Linuxaffected 2.6.37 ; unaffected 0 < 2.6.37 ; unaffected 5.10.258 ≤ 5.10.* ; unaffected 5.15.209 ≤ 5.15.* ; unaffected 6.1.175 ≤ 6.1.* ; unaffected 6.6.141 ≤ 6.6.*

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
CERT-FR (ANSSI)Licence Ouverte / Etalab 2.0
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD