CVE-2026-46249

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

Description A crash occurs in the PF driver during a kexec reboot because the hardware is not power-cycled, allowing the AF state from the previous kernel to persist. When AF and PF drivers are built as modules, the PF driver may probe before the AF reinitializes the hardware. The PF driver uses the RVUM block revision as an indicator that AF initialization is complete; if this value remains uncleared during shutdown, the PF driver may incorrectly assume the AF is ready and access stale hardware state.

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