Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-46249

octeontx2-af: Fix PF driver crash with kexec kernel booting

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 54494aa5d1e68945dc79feb7c8461cd382e11d8a to < b7605b9301abc18fbbf2b0e23fdd281fc768955daffected
  • 54494aa5d1e68945dc79feb7c8461cd382e11d8a to < 9769a09afda20a006b528b9e723effcae45965b2affected
  • 54494aa5d1e68945dc79feb7c8461cd382e11d8a to < 57821d1436ba1c6a6973aa32d54166fdec35558caffected
  • 54494aa5d1e68945dc79feb7c8461cd382e11d8a to < 8b5ed7c5417b7013d35b6f2507dab739013ba1a9affected
  • 54494aa5d1e68945dc79feb7c8461cd382e11d8a to < 7d56ba306e93d04696718963fb4cda2883ee7585affected
  • 54494aa5d1e68945dc79feb7c8461cd382e11d8a to < 9c3398e5b3a914b74276d44ab54c49123b89c61aaffected
  • 54494aa5d1e68945dc79feb7c8461cd382e11d8a to < 1370736836a18b5e0cd74bcc9cffe11d21f1fe79affected
  • 54494aa5d1e68945dc79feb7c8461cd382e11d8a to < 2d2d574309e3ae84ee794869a5da8b4c38753a94affected

Linux Linux

Default version status: affected

  • 4.20affected
  • 0 to < 4.20unaffected
  • 5.10.252 to ≤ 5.10.*unaffected
  • 5.15.202 to ≤ 5.15.*unaffected
  • 6.1.165 to ≤ 6.1.*unaffected
  • 6.6.128 to ≤ 6.6.*unaffected
  • 6.12.75 to ≤ 6.12.*unaffected
  • 6.18.14 to ≤ 6.18.*unaffected
  • 6.19.4 to ≤ 6.19.*unaffected
  • 7.0 to ≤ *unaffected

References