Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Drain RCU callbacks during module teardown devx_free_subscription() can remain queued after the last DevX event file drops its module reference or an auxiliary driver detaches its devices. mlx5_ib can then unload before the callback runs. Registration error unwind has the same risk because driver registration can attach existing devices before failing. Wait after all drivers have stopped.
References
- https://git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbe
- https://git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20f
- https://git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76a
- https://git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cff
- https://git.kernel.org/stable/c/7babc25d8dd5b7642920fbc0737cfd1469e7025b
- https://git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82
- https://git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e
FAQ
What is CVE-2026-93109?
CVE-2026-93109 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: RDMA/mlx5: Drain RCU callbacks during module teardown devx_free_subscription() can remain queued after the last DevX event file dr...
How severe is CVE-2026-93109?
CVSS scoring is not yet available for CVE-2026-93109. Check NVD for updates.
Is there a patch for CVE-2026-93109?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.