Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 7210cb7a72a22303cdb225bd1aea28697a17bbae before 2deafd015ea9a0e75ee5764e20eb1e16bd73efd8; affected 7210cb7a72a22303cdb225bd1aea28697a17bbae before 67288113c5e6cf9e659b4065c0ed6f16100e0c71; affected 7210cb7a72a22303cdb225bd1aea28697a17bbae before 082083c9fbd99422a0370fe2102144a231c9f5d6; affected 7210cb7a72a22303cdb225bd1aea28697a17bbae before 5f053a2e7209d326cbbc07738fa6d6893d307438; affected 7210cb7a72a22303cdb225bd1aea28697a17bbae before 080e5563f878c64e697b89e7439d730d0daad882 |
| Linux / Linux | affected 3.4; unaffected 0 before 3.4; unaffected 6.6.160 through 6.6.*; unaffected 6.12.75 through 6.12.*; unaffected 6.18.16 through 6.18.*; unaffected 6.19.6 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2deafd015ea9a0e75ee5764e20eb1e16bd73efd8
- https://git.kernel.org/stable/c/67288113c5e6cf9e659b4065c0ed6f16100e0c71
- https://git.kernel.org/stable/c/082083c9fbd99422a0370fe2102144a231c9f5d6
- https://git.kernel.org/stable/c/5f053a2e7209d326cbbc07738fa6d6893d307438
- https://git.kernel.org/stable/c/080e5563f878c64e697b89e7439d730d0daad882
ADP enrichment
A flaw was found in the Linux kernel's Distributed Lock Manager (dlm) module. An attacker could send specially crafted network messages with an oversized length parameter to the dlm_dump_rsb_name() function. This lack of validation can lead to an out-of-bounds write in the dlm_search_rsb_tree() function, potentially causing a buffer overflow. This vulnerability could allow for denial of service or, in some cases, arbitrary code execution.
- https://access.redhat.com/security/cve/CVE-2026-43125
- https://bugzilla.redhat.com/show_bug.cgi?id=2467234
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43125.json
- https://access.redhat.com/errata/RHSA-2026:35844
- https://access.redhat.com/errata/RHSA-2026:41236
- https://access.redhat.com/errata/RHSA-2026:34095
- https://access.redhat.com/errata/RHSA-2026:36767
- https://access.redhat.com/errata/RHSA-2026:34094
- https://access.redhat.com/errata/RHSA-2026:25217
- https://access.redhat.com/errata/RHSA-2026:25121
- https://access.redhat.com/errata/RHSA-2026:55762
- https://access.redhat.com/errata/RHSA-2026:59091
- https://access.redhat.com/errata/RHSA-2026:33899
- https://access.redhat.com/errata/RHSA-2026:35863
- https://access.redhat.com/errata/RHSA-2026:55761
- https://access.redhat.com/errata/RHSA-2026:55837
- https://access.redhat.com/errata/RHSA-2026:56224
- https://access.redhat.com/errata/RHSA-2026:56225
- https://access.redhat.com/errata/RHSA-2026:55763
- https://access.redhat.com/errata/RHSA-2026:25120
- https://access.redhat.com/errata/RHSA-2026:33900
No English description supplied.
No references supplied.