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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
4Patches
Vulnerability mechanics
References
8- git.kernel.org/stable/c/1370736836a18b5e0cd74bcc9cffe11d21f1fe79nvdPatch
- git.kernel.org/stable/c/2d2d574309e3ae84ee794869a5da8b4c38753a94nvdPatch
- git.kernel.org/stable/c/57821d1436ba1c6a6973aa32d54166fdec35558cnvdPatch
- git.kernel.org/stable/c/7d56ba306e93d04696718963fb4cda2883ee7585nvdPatch
- git.kernel.org/stable/c/8b5ed7c5417b7013d35b6f2507dab739013ba1a9nvdPatch
- git.kernel.org/stable/c/9769a09afda20a006b528b9e723effcae45965b2nvdPatch
- git.kernel.org/stable/c/9c3398e5b3a914b74276d44ab54c49123b89c61anvdPatch
- git.kernel.org/stable/c/b7605b9301abc18fbbf2b0e23fdd281fc768955dnvdPatch
News mentions
1- Linux Kernel: 25 Vulnerabilities Disclosed in Single Batch on June 3, 2026Vypr Intelligence · Jun 3, 2026