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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-52914 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: fix fragment reassembly length accounting batman-adv keeps a running payload length for queued fragments and uses it to validate a fragment chain before reassembly. That accounting currently allows the accumulated fragment length to be truncated during updates. As a result, malformed fragment chains can bypass the intended validation and drive reassembly with inconsistent length state, leading to a local denial of service. Fix the accounting by storing the accumulated length in a length-typed field and rejecting update overflows before the existing validation logic runs. The fix was verified against the original reproducer and against valid fragment reassembly paths.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/37be61825b15534a16ff9cfc9546de155b6df982 kernel.org
https://git.kernel.org/stable/c/3eb8bcb823391bd58997831b3c9c152a4ba8e255 kernel.org
https://git.kernel.org/stable/c/975563c5de1123dde1ec7946bf5556d20c89d74e kernel.org
https://git.kernel.org/stable/c/9cd3f16c320bfdadd4509358122368deb56a5741 kernel.org
https://git.kernel.org/stable/c/e4f3f6b818aa6a678bc54a2d4e0bece2303c6a64 kernel.org
https://git.kernel.org/stable/c/e910dbf509125fe51ad68e4fa74dc8ab0a8e787a kernel.org
https://git.kernel.org/stable/c/f653b040dad1af70fa5cd4fe085e4758925480c9 kernel.org
https://git.kernel.org/stable/c/fdb2c96efb2baeb3725e9ce3ede8f1e36f5490f0 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-52914
NVD Published Date:
06/24/2026
NVD Last Modified:
06/28/2026
Source:
kernel.org