Bug 2420245 (CVE-2022-50632) - CVE-2022-50632 kernel: drivers: perf: marvell_cn10k: Fix hotplug callback leak in tad_pmu_init()
Summary: CVE-2022-50632 kernel: drivers: perf: marvell_cn10k: Fix hotplug callback lea...
Keywords:
Status: NEW
Alias: CVE-2022-50632
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2025-12-09 01:02 UTC by OSIDB Bzimport
Modified: 2025-12-10 07:46 UTC (History)
0 users

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Description OSIDB Bzimport 2025-12-09 01:02:54 UTC 
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")
Comment 1 Alexander B 2025-12-10 07:41:24 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025120934-CVE-2022-50632-97fb@gregkh/T
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