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.
References8
- git.kernel.org/stable/c/673db10729fb121ea1b16fe57791a0cb9eac1eb5
- git.kernel.org/stable/c/77d4fa8a3ea1c3e8b996ac35e59aee9e77389905
- git.kernel.org/stable/c/7a68257b90d8a9b6d605abc99469ded45ecba63b
- git.kernel.org/stable/c/95232281512b15338549171ed9a2acf21f946ffb
- git.kernel.org/stable/c/9f7dc355f62c011e4afe8286cf71130d4bfb9d80
- git.kernel.org/stable/c/ef39758637cc5b603fb05b625c45a98aa306e338
- git.kernel.org/stable/c/f77117530fc3f5932ffb107182a6dd34006be9b6
- git.kernel.org/stable/c/fe9c8d641f6991614d1229a3ffd3e33b879bba9c
Metrics
- CVSS 3.1
-
7.8
HIGH
Score source: CNA
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 7 · as of 11 November 2026
- CWE
- CWE-754
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