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.
Affected products
linux: linux kernel
References10
- git.kernel.org/stable/c/080e5563f878c64e697b89e7439d730d0daad882 Patch
- git.kernel.org/stable/c/082083c9fbd99422a0370fe2102144a231c9f5d6 Patch
- git.kernel.org/stable/c/5f053a2e7209d326cbbc07738fa6d6893d307438 Patch
- git.kernel.org/stable/c/67288113c5e6cf9e659b4065c0ed6f16100e0c71 Patch
- git.kernel.org/stable/c/0270664871616eb3a5c864b9aa17be76fd35b920
- git.kernel.org/stable/c/2deafd015ea9a0e75ee5764e20eb1e16bd73efd8
- git.kernel.org/stable/c/c98d071a1ca903b705316225e47006aaa20e989c
- access.redhat.com/errata/RHSA-2026:25120
- access.redhat.com/errata/RHSA-2026:25121
- access.redhat.com/errata/RHSA-2026:25217
Metrics
- CVSS 3.1
-
9.8
CRITICAL
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 1% percentile: 46 · as of 13 November 2026
- CWE
- CWE-787CWE-130
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