CVE-2026-93109

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.

EPSS

0.2% chance of exploitation in the next 30 days; higher than 11% of CVEs (scores of 2026-10-25)

Published

2026-09-17

Modified

2026-10-19

Record from

the NVD, synced 2026-10-19

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

Check your stackJSON