CVE-2022-50510
perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init()
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")
INFO
Published Date :
Oct. 7, 2025, 4:15 p.m.
Last Modified :
Oct. 8, 2025, 7:38 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Solution
- Remove callback using cpuhp_remove_multi_state() on failure.
- Apply the patch to the Linux kernel.
- Update the Linux kernel to a patched version.
References to Advisories, Solutions, and Tools
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information, practical solutions, and valuable tools related to
CVE-2022-50510
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CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2022-50510
is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2022-50510
weaknesses.
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CVE-2022-50510
vulnerability anywhere in the article.
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CVE-2022-50510
vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Oct. 07, 2025
Action Type Old Value New Value Added 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") Added Reference https://git.kernel.org/stable/c/359286f886feef38536eaa7e673dc3440f03b0a1 Added Reference https://git.kernel.org/stable/c/582babe17ea878ec1d76f30e03f3a6ce6e30eb91 Added Reference https://git.kernel.org/stable/c/6f2d566b46436a50a80d6445e82879686b89588c Added Reference https://git.kernel.org/stable/c/b131304fe722853cf26e55c4fa21fc58a36e7f21 Added Reference https://git.kernel.org/stable/c/d69bdb61d577297d3851fc9f6403574bf73ef41f Added Reference https://git.kernel.org/stable/c/f245ca9a0fe7f794a8187ad803d5e2ced5a11cb2