perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init()
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.1%
exploitation probability
0.1%top 96% of all CVEs
observed exploitation
nono source reports it
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")
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/359286f886feef38536eaa7e673dc3440f03b0a1https://git.kernel.org/stable/c/582babe17ea878ec1d76f30e03f3a6ce6e30eb91https://git.kernel.org/stable/c/6f2d566b46436a50a80d6445e82879686b89588chttps://git.kernel.org/stable/c/b131304fe722853cf26e55c4fa21fc58a36e7f21https://git.kernel.org/stable/c/d69bdb61d577297d3851fc9f6403574bf73ef41fhttps://git.kernel.org/stable/c/f245ca9a0fe7f794a8187ad803d5e2ced5a11cb2