EUVD-2026-15394

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...

UBUNTU-CVE-2026-23393

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...

CVE-2026-23393

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...

CVE-2026-23393

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...

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...

CVE-2026-23393

CVE-2026-23393 – Linux kernel (bridge/cfm) race fix : A race during peer MEP deletion could occur because br_cfm_frame_rx() could re-schedule ccm_rx_dwork while peer_mep is freed under RCU, risking use-after-free. The fix replaces cancel_delayed_work_sync() with disable_delayed_work_sync() in bot...