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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.

PUBLISHED Reserved 2026-05-13 | Published 2026-06-03 | Updated 2026-06-03 | Assigner Linux

Product status

Default status
unaffected

54494aa5d1e68945dc79feb7c8461cd382e11d8a (git) before b7605b9301abc18fbbf2b0e23fdd281fc768955d
affected

54494aa5d1e68945dc79feb7c8461cd382e11d8a (git) before 9769a09afda20a006b528b9e723effcae45965b2
affected

54494aa5d1e68945dc79feb7c8461cd382e11d8a (git) before 57821d1436ba1c6a6973aa32d54166fdec35558c
affected

54494aa5d1e68945dc79feb7c8461cd382e11d8a (git) before 8b5ed7c5417b7013d35b6f2507dab739013ba1a9
affected

54494aa5d1e68945dc79feb7c8461cd382e11d8a (git) before 7d56ba306e93d04696718963fb4cda2883ee7585
affected

54494aa5d1e68945dc79feb7c8461cd382e11d8a (git) before 9c3398e5b3a914b74276d44ab54c49123b89c61a
affected

54494aa5d1e68945dc79feb7c8461cd382e11d8a (git) before 1370736836a18b5e0cd74bcc9cffe11d21f1fe79
affected

54494aa5d1e68945dc79feb7c8461cd382e11d8a (git) before 2d2d574309e3ae84ee794869a5da8b4c38753a94
affected

Default status
affected

4.20
affected

Any version before 4.20
unaffected

5.10.252 (semver)
unaffected

5.15.202 (semver)
unaffected

6.1.165 (semver)
unaffected

6.6.128 (semver)
unaffected

6.12.75 (semver)
unaffected

6.18.14 (semver)
unaffected

6.19.4 (semver)
unaffected

7.0 (original_commit_for_fix)
unaffected

References

git.kernel.org/...c/b7605b9301abc18fbbf2b0e23fdd281fc768955d

git.kernel.org/...c/9769a09afda20a006b528b9e723effcae45965b2

git.kernel.org/...c/57821d1436ba1c6a6973aa32d54166fdec35558c

git.kernel.org/...c/8b5ed7c5417b7013d35b6f2507dab739013ba1a9

git.kernel.org/...c/7d56ba306e93d04696718963fb4cda2883ee7585

git.kernel.org/...c/9c3398e5b3a914b74276d44ab54c49123b89c61a

git.kernel.org/...c/1370736836a18b5e0cd74bcc9cffe11d21f1fe79

git.kernel.org/...c/2d2d574309e3ae84ee794869a5da8b4c38753a94

cve.org (CVE-2026-46249)

nvd.nist.gov (CVE-2026-46249)

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