CVE-2026-23393

A flaw was found in the Linux kernel's bridge Connectivity Fault Management CFM component. A race condition can occur during the deletion of a peer Maintenance Entity Group End Point MEP. This allows the brcfmframerx function to re-schedule a delayed work on a MEP object after it has been marked...

CVE-2026-23393 bridge: cfm: Fix race condition in peer_mep deletion

In the Linux kernel, the following vulnerability has been resolved: bridge: cfm: Fix race condition in peermep deletion When a peer MEP is being deleted, canceldelayedworksync is called on ccmrxdwork before freeing. However, brcfmframerx runs in softirq context under rcureadlock without RTNL and...