CVE-2026-46249
What it is
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.
At a glance
- Exploitability
- Can be exploited locally on the machine with a low-privilege account. High risk of service disruption.
- Exploit odds
- 0.1% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.1% in the next 30 days (EPSS).
- Severity: 5.5 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.1% · EPSS, next 30 days
- Record status
- Analyzed
Affected
- Linux Kernel < 5.10.252
- Linux Kernel < 5.15.202
- Linux Kernel < 6.1.165
- Linux Kernel < 6.6.128
- Linux Kernel < 6.12.75
- Linux Kernel < 6.18.14
- Linux Kernel < 6.19.4
Attack profile CVSS 3.1 · 5.5
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-46249.md and follow it. Check whether this project is affected by CVE-2026-46249. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://git.kernel.org/stable/c/1370736836a18b5e0cd74bcc9cffe11d21f1fe79
- https://git.kernel.org/stable/c/2d2d574309e3ae84ee794869a5da8b4c38753a94
- https://git.kernel.org/stable/c/57821d1436ba1c6a6973aa32d54166fdec35558c
- https://git.kernel.org/stable/c/7d56ba306e93d04696718963fb4cda2883ee7585
- https://git.kernel.org/stable/c/8b5ed7c5417b7013d35b6f2507dab739013ba1a9
- https://git.kernel.org/stable/c/9769a09afda20a006b528b9e723effcae45965b2
- https://git.kernel.org/stable/c/9c3398e5b3a914b74276d44ab54c49123b89c61a
- https://git.kernel.org/stable/c/b7605b9301abc18fbbf2b0e23fdd281fc768955d
References
- https://git.kernel.org/stable/c/1370736836a18b5e0cd74bcc9cffe11d21f1fe79
- https://git.kernel.org/stable/c/2d2d574309e3ae84ee794869a5da8b4c38753a94
- https://git.kernel.org/stable/c/57821d1436ba1c6a6973aa32d54166fdec35558c
- https://git.kernel.org/stable/c/7d56ba306e93d04696718963fb4cda2883ee7585
- https://git.kernel.org/stable/c/8b5ed7c5417b7013d35b6f2507dab739013ba1a9
- https://git.kernel.org/stable/c/9769a09afda20a006b528b9e723effcae45965b2
- https://git.kernel.org/stable/c/9c3398e5b3a914b74276d44ab54c49123b89c61a
- https://git.kernel.org/stable/c/b7605b9301abc18fbbf2b0e23fdd281fc768955d