CVE-2026-46249

MEDIUM EPSS 1.8%
Published Jun 3, 20263w ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Jun 3, 2026 3w ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
1.8% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥4.20  –  <5.10.252
linuxlinux_kernel*≥5.11  –  <5.15.202
linuxlinux_kernel*≥5.16  –  <6.1.165
linuxlinux_kernel*≥6.2  –  <6.6.128
linuxlinux_kernel*≥6.7  –  <6.12.75
linuxlinux_kernel*≥6.13  –  <6.18.14
linuxlinux_kernel*≥6.19  –  <6.19.4

References 8

  • git.kernel.org https://git.kernel.org/stable/c/1370736836a18b5e0cd74bcc9cffe11d21f1fe79
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2d2d574309e3ae84ee794869a5da8b4c38753a94
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/57821d1436ba1c6a6973aa32d54166fdec35558c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7d56ba306e93d04696718963fb4cda2883ee7585
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8b5ed7c5417b7013d35b6f2507dab739013ba1a9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9769a09afda20a006b528b9e723effcae45965b2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9c3398e5b3a914b74276d44ab54c49123b89c61a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7605b9301abc18fbbf2b0e23fdd281fc768955d
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/1370736836a18b5e0cd74bcc9cffe11d21f1fe79
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2d2d574309e3ae84ee794869a5da8b4c38753a94
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/57821d1436ba1c6a6973aa32d54166fdec35558c
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/7d56ba306e93d04696718963fb4cda2883ee7585
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/8b5ed7c5417b7013d35b6f2507dab739013ba1a9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9769a09afda20a006b528b9e723effcae45965b2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/9c3398e5b3a914b74276d44ab54c49123b89c61a
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/b7605b9301abc18fbbf2b0e23fdd281fc768955d
    Patch