CVEvulnerability
CVE-2026-63838
- Status
- Undergoing Analysis
- Published
- 2026-07-19
- Last modified
- 2026-07-27
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
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/134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5 git.kernel.org
- https://git.kernel.org/stable/c/15e7b2ac2455995a6af02b9d3da7a432837aaf72 git.kernel.org
- https://git.kernel.org/stable/c/9f1daac27ca28e98c8c0e4450de42bb68d547250 git.kernel.org
- https://git.kernel.org/stable/c/a62b3e6e42359a79158c134e3cf5c74fe160c3f5 git.kernel.org
- https://git.kernel.org/stable/c/f9e437cddf6cf9e603bdaefe148c1f4792aaf39c git.kernel.org