CVE-2023-53674

clk: Fix memory leak in devm_clk_notifier_register()

State: Published
Severity: 7.8 High
Published: Oct 7, 2025
Updated: Aug 5, 2026
Reserved: Oct 7, 2025

Description

In the Linux kernel, the following vulnerability has been resolved:

clk: Fix memory leak in devm_clk_notifier_register()

devm_clk_notifier_register() allocates a devres resource for clk notifier but didn't register that to the device, so the notifier didn't get unregistered on device detach and the allocated resource was leaked.

Fix the issue by registering the resource through devres_add().

This issue was found with kmemleak on a Chromebook.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before a326cf0107b197e649bbaa2a2b1355894826ce32Affected 6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before 49451db71b746df990888068961f1033f7c9b734Affected 6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before cb1b04fd4283fc8f9acefe0ddc61ba072ed44877Affected 6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before efbbda79b2881a04dcd0e8f28634933d79e17e49Affected 6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before 7fb933e56f77a57ef7cfc59fc34cbbf1b1fa31ffAffected
LinuxLinux	5.11Affected before 5.11Not affected 5.15.121 through 5.15.Not affected 6.1.39 through 6.1.Not affected 6.3.13 through 6.3.Not affected 6.4.4 through 6.4.Not affected 6.5 and laterNot affected

Product

Versions

LinuxLinux

6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before a326cf0107b197e649bbaa2a2b1355894826ce32Affected
6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before 49451db71b746df990888068961f1033f7c9b734Affected
6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before cb1b04fd4283fc8f9acefe0ddc61ba072ed44877Affected
6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before efbbda79b2881a04dcd0e8f28634933d79e17e49Affected
6d30d50d037dfa092f9d5d1fffa348ab4abb7163 to before 7fb933e56f77a57ef7cfc59fc34cbbf1b1fa31ffAffected

LinuxLinux

5.11Affected
before 5.11Not affected
5.15.121 through 5.15.*Not affected
6.1.39 through 6.1.*Not affected
6.3.13 through 6.3.*Not affected
6.4.4 through 6.4.*Not affected
6.5 and laterNot affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.