CVE-2026-63838

high

Description

In the Linux kernel, the following vulnerability has been resolved: ASoC: rsnd: Fix potential out-of-bounds access of component_dais[] component_dais[RSND_MAX_COMPONENT] is initially zero-initialized and later populated in rsnd_dai_of_node(). However, the existing boundary check: if (i >= RSND_MAX_COMPONENT) does not guarantee that the last valid element remains zero. As a result, the loop can rely on component_dais[RSND_MAX_COMPONENT] being zero, which may lead to an out-of-bounds access. Found by Linux Verification Center (linuxtesting.org) with SVACE.

References

https://git.kernel.org/stable/c/f9e437cddf6cf9e603bdaefe148c1f4792aaf39c

https://git.kernel.org/stable/c/a62b3e6e42359a79158c134e3cf5c74fe160c3f5

https://git.kernel.org/stable/c/9f1daac27ca28e98c8c0e4450de42bb68d547250

https://git.kernel.org/stable/c/15e7b2ac2455995a6af02b9d3da7a432837aaf72

https://git.kernel.org/stable/c/134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5

Details

Source: Mitre, NVD

Published: 2026-07-19

Updated: 2026-07-19

Risk Information

CVSS v2

Base Score: 5.6

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

Severity: Medium

CVSS v3

Base Score: 7.1

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

Severity: High

EPSS

EPSS: 0.00168