CVE-2026-43382 batman-adv: Avoid double-rtnl_lock ELP metric worker

In the Linux kernel, the following vulnerability has been resolved: batman-adv: Avoid double-rtnllock ELP metric worker batadvvelpgetthroughput might be called when the RTNL lock is already held. This could be problematic when the work queue item is cancelled via canceldelayedworksync in...

CVE-2026-43382

Summary: CVE-2026-43382 affects the Linux kernel batman-adv component. The issue arises when batadv_v_elp_get_throughput() runs with the RTNL lock already held, which could cause a deadlock during cancellation of a work item. The fix switches to rtnl_trylock to skip ethtool retrieval if the RTNL ...