CVE-2026-72067

Description

In the Linux kernel, the following vulnerability has been resolved: cpu: hotplug: Preserve per instance callback errors cpuhp_invoke_callback() unwinds earlier callbacks for the same hotplug state when one instance fails. The rollback path currently reuses ret, so a successful rollback can hide the original error and make the failed transition look successful. Keep the rollback result separate from the original error.

References

• https://git.kernel.org/stable/c/673db10729fb121ea1b16fe57791a0cb9eac1eb5
• https://git.kernel.org/stable/c/77d4fa8a3ea1c3e8b996ac35e59aee9e77389905
• https://git.kernel.org/stable/c/7a68257b90d8a9b6d605abc99469ded45ecba63b
• https://git.kernel.org/stable/c/95232281512b15338549171ed9a2acf21f946ffb
• https://git.kernel.org/stable/c/9f7dc355f62c011e4afe8286cf71130d4bfb9d80