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.

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Advisories
Source ID Title
Ubuntu USN Ubuntu USN USN-8490-1 Linux kernel vulnerabilities
Ubuntu USN Ubuntu USN USN-8491-1 Linux kernel (OEM) vulnerabilities
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 08 May 2026 20:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Fri, 08 May 2026 18:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-787

Fri, 08 May 2026 13:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}


Thu, 07 May 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-130
References
Metrics threat_severity

None

cvssV3_1

{'score': 7.0, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

threat_severity

Important


Wed, 06 May 2026 16:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Wed, 06 May 2026 12:15:00 +0000

Type Values Removed Values Added
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.
Title dlm: validate length in dlm_search_rsb_tree
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-07-02T12:05:28.562Z

Reserved: 2026-05-01T14:12:55.988Z

Link: CVE-2026-43125

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2026-05-06T12:16:29.450

Modified: 2026-06-17T10:48:58.970

Link: CVE-2026-43125

cve-icon Redhat

Severity : Important

Publid Date: 2026-05-06T00:00:00Z

Links: CVE-2026-43125 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-08T22:15:18Z

Weaknesses