CVE-2026-31475

HighCVSS 7.8/10Last modified Nov 11, 2026

Description

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

ASoC: sma1307: fix double free of devm_kzalloc() memory

A previous change added NULL checks and cleanup for allocation failures in sma1307_setting_loaded().

However, the cleanup for mode_set entries is wrong. Those entries are allocated with devm_kzalloc(), so they are device-managed resources and must not be freed with kfree(). Manually freeing them in the error path can lead to a double free when devres later releases the same memory.

Drop the manual kfree() loop and let devres handle the cleanup.

Metrics

CVSS 3.1 7.8/10CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-415

Affected software

VendorProductVersions
LinuxLinux>= 0ec6bd16705fe21d6429d6b8f7981eae2142bba8, < d472d1a52985211b92883bb64bbe710b45980190; >= 0ec6bd16705fe21d6429d6b8f7981eae2142bba8, < 1a82c3272626db9006f4c2cad3adf2916417aed6; >= 0ec6bd16705fe21d6429d6b8f7981eae2142bba8, < fe757092d2329c397ecb32f2bf68a5b1c4bd9193; f8434b8ba437d3f6cbcd9ffe8405bd16ed28fc5c; >= 6.14.9, < 6.15
LinuxLinux6.15

References

Timeline

Published
Apr 22, 2026
Last modified
Nov 11, 2026
NVD status
Analyzed

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CVE-2026-31475: High severity, CVSS 7.8 | Vulnix