CVE-2026-45973

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A race condition in the RDMA/mlx5 driver occurs during firmware reset in LAG mode, causing the driver to hang indefinitely while waiting for UMR completion during device unload. In LAG mode, the bond device is registered only on the master, preventing it from receiving sys error events from the slave. Consequently, during a firmware reset, UMR posts succeed but completions never arrive because the slave is inactive while the master has not yet entered an error state.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.