CVE-2026-53309
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…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.40%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.40% probability · 33th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-193
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/01b61e8dda9b0fdb0d4cda43de25f4e390554d7bPatch
- https://git.kernel.org/stable/c/1fb7f356547d9688822315cd2b205ff0bd5429b4Patch
- https://git.kernel.org/stable/c/2a0673836f019e7c032acbf48d022d5ccf02a845Patch
- https://git.kernel.org/stable/c/426cd8eedac89b86148d4478990eeef16e8a2520Patch
- https://git.kernel.org/stable/c/760ab35040aca8399021fdb9ff1db1089feb7194Patch
- https://git.kernel.org/stable/c/819d8ebad3200a53de99bd7e297bc428e41ced54Patch
- https://git.kernel.org/stable/c/c60a2710b73838d250cda57344c049b89abc5d52Patch
- https://git.kernel.org/stable/c/d5403ae28085761d58b555645bc7d5feadb10073Patch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.