CVE-2026-43125 | In the Linux kernel, the following vulnerability has been re… | CVSS 9.8 CRITICAL

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.

Metadata

CVE ID: CVE-2026-43125
State: PUBLISHED
Assigner: Linux
Reserved: 2026-05-01 14:12 UTC
Published: 2026-05-06 11:27 UTC
Last updated: 2026-05-11 22:18 UTC
Vendor / Product: Linux / Linux
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

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

Affected products (2)

Vendor	Product	Platform	Versions
Linux	Linux	—	7210cb7a72a22303cdb225bd1aea28697a17bbae < 67288113c5e6cf9e659b4065c0ed6f16100e0c71, 7210cb7a72a22303cdb225bd1aea28697a17bbae < 082083c9fbd99422a0370fe2102144a231c9f5d6, 7210cb7a72a22303cdb225bd1aea28697a17bbae < 5f053a2e7209d326cbbc07738fa6d6893d307438, 7210cb7a72a22303cdb225bd1aea28697a17bbae < 080e5563f878c64e697b89e7439d730d0daad882
Linux	Linux	—	3.4, 0 < 3.4, 6.12.75 ≤ 6.12., 6.18.16 ≤ 6.18. …

CVSS scores (1)

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

References (4)