CVE-2026-46249
Description
In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Fix PF driver crash with kexec kernel booting During a kexec reboot the hardware is not power-cycled, so AF state from the old kernel can persist into the new kernel. When AF and PF drivers are built as modules, the PF driver may probe before AF reinitializes the hardware. The PF driver treats the RVUM block revision as an indication that AF initialization is complete. If this value is left uncleared at shutdown, PF may incorrectly assume AF is ready and access stale hardware state, leading to a crash. Clear the RVUM block revision during AF shutdown to avoid PF mis-detecting AF readiness after kexec.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://git.kernel.org/stable/c/b7605b9301abc18fbbf2b0e23fdd281fc768955d
- https://git.kernel.org/stable/c/9769a09afda20a006b528b9e723effcae45965b2
- https://git.kernel.org/stable/c/57821d1436ba1c6a6973aa32d54166fdec35558c
- https://git.kernel.org/stable/c/8b5ed7c5417b7013d35b6f2507dab739013ba1a9
- https://git.kernel.org/stable/c/7d56ba306e93d04696718963fb4cda2883ee7585
- https://git.kernel.org/stable/c/9c3398e5b3a914b74276d44ab54c49123b89c61a
- https://git.kernel.org/stable/c/1370736836a18b5e0cd74bcc9cffe11d21f1fe79
- https://git.kernel.org/stable/c/2d2d574309e3ae84ee794869a5da8b4c38753a94
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.