What’s Vulnerable › Vulnerabilities

CVE-2023-53518: PM / devfreq: Fix leak in devfreq_dev_release()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-10-01 · updated 2026-10-15
• Weakness: CWE-401

Description

In the Linux kernel, the following vulnerability has been resolved: PM / devfreq: Fix leak in devfreq_dev_release() srcu_init_notifier_head() allocates resources that need to be released with a srcu_cleanup_notifier_head() call. Reported by kmemleak.

Affected products

• Linux kernel: from 4.7 before 4.14.326; from 4.15 before 4.19.295; from 4.20 before 5.4.257; from 5.5 before 5.10.195; from 5.11 before 5.15.132; from 5.16 before 6.1.53 — fixed in 4.14.326, 4.19.295, 5.10.195, 5.15.132, 5.4.257, 6.1.53

How to fix

Upgrade to a fixed version: Linux kernel 4.14.326, 4.19.295, 5.10.195, 5.15.132. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/111bafa210ae546bee7644be730c42df9c35b66e
• https://git.kernel.org/stable/c/1640e9c72173911ad0fddb05012c01eafe082c4e
• https://git.kernel.org/stable/c/29811f4b8255d4238cf326f3bb7129784766beab
• https://git.kernel.org/stable/c/3354c401c68d70567d1ef25d12f4e22a7813a3c6
• https://git.kernel.org/stable/c/5693d077595de721f9ddbf9d37f40e5409707dfe
• https://git.kernel.org/stable/c/64e6e0dc2d578c0a9e31cb4edd719f0a3ed98f6d
• https://git.kernel.org/stable/c/7462483446cb9986568ad7adae746ce5f18d2968
• https://git.kernel.org/stable/c/8918025feb2f5f7c73f2495c158f22997e25cb02
• https://git.kernel.org/stable/c/ab192e5e5d3b48415909a8408acfd007a607bcc0

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