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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-52931 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: batman-adv: tp_meter: avoid use of uninit sender vars batadv_tp_recv_ack() and batadv_tp_stop() are only valid for tp_vars in the BATADV_TP_SENDER role. When called with a BATADV_TP_RECEIVER role, it proceeds to read sender-only members that were never initialized, leading to undefined behavior. This can be triggered when a node that is currently acting as a receiver in an ongoing tp_meter session receives a malicious ACK packet. Guard against this by checking tp_vars->role immediately after the lookup and bailing out if it is not BATADV_TP_SENDER, before any of those members are accessed.


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/0e388af04b3958b178a1b979527f93eb46ea1fee kernel.org
https://git.kernel.org/stable/c/1a21c055f66e78973712a4a1be2a554f1ee2e4f4 kernel.org
https://git.kernel.org/stable/c/53f931e0146ae5bdab4cba302646827d06b3794b kernel.org
https://git.kernel.org/stable/c/6c65cf23d4c6170fcf5714c32aa64689718cb142 kernel.org
https://git.kernel.org/stable/c/85397e48afe6be83ffca5ad3f4792296bfc81d3d kernel.org
https://git.kernel.org/stable/c/9884c9c02d3c90e9215db3c5128f59045d20ae91 kernel.org
https://git.kernel.org/stable/c/dc2ae5fbd2dadc26735092f140b246841d969a11 kernel.org
https://git.kernel.org/stable/c/ecdaa3e4d91040206afe21bc8a0d1198a0971ff3 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-52931
NVD Published Date:
06/24/2026
NVD Last Modified:
06/24/2026
Source:
kernel.org