CVE-2023-53674

clk: Fix memory leak in devm_clk_notifier_register()

MEDIUM
5.5
CVSS Score
Published: October 7, 2025 at 03:21 PM UTC
Updated: October 28, 2026 at 08:10 PM 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: 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.

Affected

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

5.11 ≤ v < 5.15.1215.16 ≤ v < 6.1.396.2 ≤ v < 6.3.136.4 ≤ v < 6.4.45.116d30d50d037dfa092f9d5d1fffa348ab4abb7163
Vendor states this is fixed in 49451db71b746df990888068961f1033f7c9b734 (fixed)
Vendor states this is fixed in 7fb933e56f77a57ef7cfc59fc34cbbf1b1fa31ff (fixed)
Vendor states this is fixed in a326cf0107b197e649bbaa2a2b1355894826ce32 (fixed)
Vendor states this is fixed in cb1b04fd4283fc8f9acefe0ddc61ba072ed44877 (fixed)
Vendor states this is fixed in efbbda79b2881a04dcd0e8f28634933d79e17e49 (fixed)
Vendor states this is fixed in 5.11 (unaffected)
Vendor states this is fixed in 5.15.121 (unaffected)
Vendor states this is fixed in 6.1.39 (unaffected)
Vendor states this is fixed in 6.3.13 (unaffected)
Vendor states this is fixed in 6.4.4 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-401

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