CVE-2026-31475

high

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.

References

https://git.kernel.org/stable/c/fe757092d2329c397ecb32f2bf68a5b1c4bd9193

https://git.kernel.org/stable/c/d472d1a52985211b92883bb64bbe710b45980190

https://git.kernel.org/stable/c/1a82c3272626db9006f4c2cad3adf2916417aed6

Details

Source: Mitre, NVD

Published: 2026-04-22

Updated: 2026-04-27

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C

Severity: Medium

CVSS v3

Base Score: 7.8

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

Severity: High

EPSS

EPSS: 0.00017