CVE-2026-46249
kernel: octeontx2-af: Fix PF driver crash with kexec kernel booting
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · June 3, 2026
Updated · June 28, 2026
Description
A flaw was found in the Linux kernel's octeontx2-af PF driver. This vulnerability occurs during a kexec reboot when the hardware is not power-cycled, causing the AF state from the old kernel to persist. If the RVUM block revision is not cleared during AF shutdown, the PF driver may incorrectly assume the AF is ready and access stale hardware state. This can lead to a system crash, resulting in a Denial of Service (DoS).
CVSS score applicability
The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-909 · Missing Initialization of Resource