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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-31683 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: avoid OGM aggregation when skb tailroom is insufficient When OGM aggregation state is toggled at runtime, an existing forwarded packet may have been allocated with only packet_len bytes, while a later packet can still be selected for aggregation. Appending in this case can hit skb_put overflow conditions. Reject aggregation when the target skb tailroom cannot accommodate the new packet. The caller then falls back to creating a new forward packet instead of appending.


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/0b10a8b355c3f71012ce89289ec2c2f5e3bfd6c1 kernel.org Patch 
https://git.kernel.org/stable/c/0d4aef630be9d5f9c1227d07669c26c4383b5ad0 kernel.org Patch 
https://git.kernel.org/stable/c/0e35db29fc5a97a8553f7c2d3a2ba730e46b1ee8 kernel.org Patch 
https://git.kernel.org/stable/c/1ada20331f2df2a942d6b83ae1f04a304b642e2a kernel.org Patch 
https://git.kernel.org/stable/c/67176c96f325837b0bb3e9538ca2eba414f447d8 kernel.org Patch 
https://git.kernel.org/stable/c/6755347c5f9bdd44dee80f692208b056fcd40a52 kernel.org Patch 
https://git.kernel.org/stable/c/6e40ebb999c2c3d2fbb3cacb61f0384ee6e69075 kernel.org Patch 
https://git.kernel.org/stable/c/eda89a1bae0602aec8314ced299bb243b9f9aeef kernel.org Patch 

Weakness Enumeration

CWE-ID CWE Name Source
NVD-CWE-noinfo Insufficient Information cwe source acceptance level NIST  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-31683
NVD Published Date:
04/25/2026
NVD Last Modified:
05/06/2026
Source:
kernel.org