CVE-2022-50510

perf/smmuv3: Fix hotplug callback leak in arm_smmu_pmu_init()

MEDIUM

5.5

CVSS Score

Published: October 7, 2025 at 03:19 PM UTC

Updated: June 17, 2026 at 05:23 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.2%

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")

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.11 ≤ v < 5.15.865.16 ≤ v < 6.0.165.2 ≤ v < 5.10.1635.2 ≤ v < 5.15.865.2 ≤ v < 5.4.2295.2 ≤ v < 6.0.165.2 ≤ v < 6.1.25.2 ≤ v < 6.25.5 ≤ v < 5.10.1636.1 ≤ v < 6.1.25.27d839b4b9e00645e49345d6ce5dfa8edf53c1a21

Vendor states this is fixed in 359286f886feef38536eaa7e673dc3440f03b0a1 (fixed)

Vendor states this is fixed in 582babe17ea878ec1d76f30e03f3a6ce6e30eb91 (fixed)

Vendor states this is fixed in 6f2d566b46436a50a80d6445e82879686b89588c (fixed)

Vendor states this is fixed in b131304fe722853cf26e55c4fa21fc58a36e7f21 (fixed)

Vendor states this is fixed in d69bdb61d577297d3851fc9f6403574bf73ef41f (fixed)

Vendor states this is fixed in f245ca9a0fe7f794a8187ad803d5e2ced5a11cb2 (fixed)

Vendor states this is fixed in 5.10.163 (unaffected)

Vendor states this is fixed in 5.15.86 (unaffected)

Vendor states this is fixed in 5.2 (unaffected)

Vendor states this is fixed in 5.4.229 (unaffected)

Vendor states this is fixed in 6.0.16 (unaffected)

Vendor states this is fixed in 6.1.2 (unaffected)