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Description

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.

PUBLISHED Reserved 2026-05-01 | Published 2026-05-06 | Updated 2026-05-08 | Assigner Linux




CRITICAL: 9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Product status

Default status
unaffected

7210cb7a72a22303cdb225bd1aea28697a17bbae (git) before 67288113c5e6cf9e659b4065c0ed6f16100e0c71
affected

7210cb7a72a22303cdb225bd1aea28697a17bbae (git) before 082083c9fbd99422a0370fe2102144a231c9f5d6
affected

7210cb7a72a22303cdb225bd1aea28697a17bbae (git) before 5f053a2e7209d326cbbc07738fa6d6893d307438
affected

7210cb7a72a22303cdb225bd1aea28697a17bbae (git) before 080e5563f878c64e697b89e7439d730d0daad882
affected

Default status
affected

3.4
affected

Any version before 3.4
unaffected

6.12.75 (semver)
unaffected

6.18.16 (semver)
unaffected

6.19.6 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/67288113c5e6cf9e659b4065c0ed6f16100e0c71

git.kernel.org/...c/082083c9fbd99422a0370fe2102144a231c9f5d6

git.kernel.org/...c/5f053a2e7209d326cbbc07738fa6d6893d307438

git.kernel.org/...c/080e5563f878c64e697b89e7439d730d0daad882

cve.org (CVE-2026-43125)

nvd.nist.gov (CVE-2026-43125)

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