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CVE-2026-43125

dlm: validate length in dlm_search_rsb_tree

Published: 5/6/2026 Last updated: 7/2/2026 Reserved: 5/1/2026

In the Linux kernel, the following vulnerability has been resolved: dlm: validate length in dlm_search_rsb_tree The len parameter in dlm_dump_rsb_name() is not validated and comes from network messages. When it exceeds DLM_RESNAME_MAXLEN, it can cause out-of-bounds write in dlm_search_rsb_tree(). Add length validation to prevent potential buffer overflow.

CNA assigner: Linux (416baaa9-dc9f-4396-8d5f-8c081fb06d67) Requested by: n/a

Metrics

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

Opam packages affected (0)

No Opam package affected.

Products affected (2)

Product Vendor Version
Linux Linux n/a
Linux Linux < 76.0.3809.87

References (14)