Description

In the Linux kernel, the following vulnerability has been resolved: drivers: perf: marvell_cn10k: Fix hotplug callback leak in tad_pmu_init() tad_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")

References 3

• git.kernel.org https://git.kernel.org/stable/c/367404bfd1aa87b2a50059cd8edc6c12c367cd15
• git.kernel.org https://git.kernel.org/stable/c/7772f4de934123ccd7c7cdc1dc4e46fdd5d767fb
• git.kernel.org https://git.kernel.org/stable/c/973ae93d80d9d262f695eb485a1902b74c4b9098

Remediation