CVE-2026-31475

HIGH

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

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 2.2%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-415
Status published
Products (12)
Linux/Linux < 6.15
Linux/Linux 0ec6bd16705fe21d6429d6b8f7981eae2142bba8 - 1a82c3272626db9006f4c2cad3adf2916417aed6
Linux/Linux 0ec6bd16705fe21d6429d6b8f7981eae2142bba8 - d472d1a52985211b92883bb64bbe710b45980190
Linux/Linux 0ec6bd16705fe21d6429d6b8f7981eae2142bba8 - fe757092d2329c397ecb32f2bf68a5b1c4bd9193
Linux/Linux 6.15
Linux/Linux 6.18.21 - 6.18.*
Linux/Linux 6.19.11 - 6.19.*
Linux/Linux 7.0
Linux/Linux f8434b8ba437d3f6cbcd9ffe8405bd16ed28fc5c
linux/linux_kernel 6.15
... and 2 more
Published Apr 22, 2026
Tracked Since Apr 22, 2026