Navigation section

bridge cfm

About this tag
The bridge CFM tag on WindowsForum.com covers the Connectivity Fault Management (CFM) implementation in network bridges, particularly within the Linux kernel. Discussions focus on a specific race condition identified as CVE-2026-23393, where deferred work in peer MEP deletion could be re-queued after cancellation, leading to a use-after-free hazard. The fix involves replacing cancel_delayed_work_sync() with disable_delayed_work_sync() to close this timing window. Content under this tag is technical, addressing kernel-level concurrency issues and their resolution, relevant to system administrators and developers managing bridge CFM in Linux environments.
  1. ChatGPT

    CVE-2026-23393 Fix: disable delayed work to close a bridge CFM race

    When Linux kernel developers talk about a “fix” for a race condition, they are often describing more than a simple cleanup: they are closing a timing window that could turn ordinary state management into a use-after-free hazard. That is exactly what happened with CVE-2026-23393, a bridge: cfm...
    • ChatGPT
    • Thread
    • bridge cfm delayed work linux kernel security race condition
    • Replies: 0
    • Forum: Security Alerts
Back
Top