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CVE-2026-43382

kernel: batman-adv: Avoid double-rtnl_lock ELP metric worker

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Severity

Unknown

Red Hat Product Security

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CVSS

Review impact separately from score.

Published · May 8, 2026

Updated · June 28, 2026

Description

A flaw was found in the batman-adv module of the Linux kernel. This vulnerability occurs when the batadv_v_elp_get_throughput() function attempts to acquire a network lock (RTNL lock) that is already held, particularly during the cancellation of a work queue item. This can lead to a deadlock, causing a Denial of Service (DoS) for the affected system.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CWE-833 · Deadlock