CVE-2026-93109

About 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 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 product:

AlmaLinux 9.2 ESU , Amazon Linux 2 ELS , Debian 11 ELS , TuxCare 9.6 ESU , TuxCare 9.8 ESU

Affected packages:

linux @ 5.10.259 (+4 more)

Live-patch status from KernelCare for each operating system.