Unrated severityNVD Advisory· Published Oct 7, 2025
perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init()
CVE-2022-50510
Description
In the Linux kernel, the following vulnerability has been resolved:
perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init()
arm_smmu_pmu_init() won't remove the callback added by cpuhp_setup_state_multi() when platform_driver_register() failed. Remove the callback by cpuhp_remove_multi_state() in fail path.
Similar to the handling of arm_ccn_init() in commit 26242b330093 ("bus: arm-ccn: Prevent hotplug callback leak")
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Affected products
2Patches
Vulnerability mechanics
References
6- git.kernel.org/stable/c/359286f886feef38536eaa7e673dc3440f03b0a1mitre
- git.kernel.org/stable/c/582babe17ea878ec1d76f30e03f3a6ce6e30eb91mitre
- git.kernel.org/stable/c/6f2d566b46436a50a80d6445e82879686b89588cmitre
- git.kernel.org/stable/c/b131304fe722853cf26e55c4fa21fc58a36e7f21mitre
- git.kernel.org/stable/c/d69bdb61d577297d3851fc9f6403574bf73ef41fmitre
- git.kernel.org/stable/c/f245ca9a0fe7f794a8187ad803d5e2ced5a11cb2mitre
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