CVE-2026-93109

CVE-2026-93109: vulnerability in Linux

RDMA/mlx5: Drain RCU callbacks during module teardown

Published

3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · Linux
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References
https://git.kernel.org/stable/c/2f946e7839f677fa14574b6babad14b37ae0bbbehttps://git.kernel.org/stable/c/4664368b9bd9d5d79ebad24056b98c34b9fed20fhttps://git.kernel.org/stable/c/4be7810ba70291abb2f68cc6db0ae1b93ee9c76ahttps://git.kernel.org/stable/c/59d60e04afd012f07e996d2e34cb90a4ec6f5cffhttps://git.kernel.org/stable/c/7babc25d8dd5b7642920fbc0737cfd1469e7025bhttps://git.kernel.org/stable/c/ca428e597f12b278bf158356e34641e6386cfa82https://git.kernel.org/stable/c/e37cdd75f8d61c1123d324ae5667ac3da562290e