CVE-2022-50510 Details
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")
A hotplug callback leak vulnerability has been identified in the Linux kernel's ARM SMMU PMU driver. The issue arises in the 'arm_smmu_pmu_init()' function, which fails to remove a callback added by 'cpuhp_setup_state_multi()' when 'platform_driver_register()' encounters an error. This oversight can lead to a memory leak of the hotplug callback. The vulnerability affects several versions of the Linux kernel.
The vulnerability has been addressed in the Linux kernel. Users should upgrade to the latest version where this issue has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/359286f886feef38536eaa7e673dc3440f03b0a1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/582babe17ea878ec1d76f30e03f3a6ce6e30eb91 | kernel.org | Patch |
| https://git.kernel.org/stable/c/6f2d566b46436a50a80d6445e82879686b89588c | kernel.org | Patch |
| https://git.kernel.org/stable/c/b131304fe722853cf26e55c4fa21fc58a36e7f21 | kernel.org | Patch |
| https://git.kernel.org/stable/c/d69bdb61d577297d3851fc9f6403574bf73ef41f | kernel.org | Patch |
| https://git.kernel.org/stable/c/f245ca9a0fe7f794a8187ad803d5e2ced5a11cb2 | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-401 | Missing Release of Memory after Effective Lifetime | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 5.2, < 5.4.229 >= 5.5, < 5.10.163 >= 5.11, < 5.15.86 >= 5.16, < 6.0.16 >= 6.1, < 6.1.2 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Mar 17, 2026 | Modified Analysis | [email protected] |
| Feb 5, 2026 | Initial Analysis | [email protected] |
| Oct 7, 2025 | New CVE Received | kernel.org |