CVE-2026-63838

ASoC: rsnd: Fix potential out-of-bounds access of component_dais[]

State: Published
Severity: Not scored
Published: Jul 19, 2026
Updated: Jul 19, 2026
Reserved: Jul 19, 2026

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before 9f1daac27ca28e98c8c0e4450de42bb68d547250Affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before 15e7b2ac2455995a6af02b9d3da7a432837aaf72Affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before 134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5Affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before a62b3e6e42359a79158c134e3cf5c74fe160c3f5Affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before f9e437cddf6cf9e603bdaefe148c1f4792aaf39cAffected
LinuxLinux	6.6Affected before 6.6Not affected 6.6.141 through 6.6.Not affected 6.12.91 through 6.12.Not affected 6.18.33 through 6.18.Not affected 7.0.10 through 7.0.Not affected 7.1 and laterNot affected

Product

Versions

LinuxLinux

547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before 9f1daac27ca28e98c8c0e4450de42bb68d547250Affected
547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before 15e7b2ac2455995a6af02b9d3da7a432837aaf72Affected
547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before 134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5Affected
547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before a62b3e6e42359a79158c134e3cf5c74fe160c3f5Affected
547b02f74e4ac1e7d295a6266d5bc93a647cd4ac to before f9e437cddf6cf9e603bdaefe148c1f4792aaf39cAffected

LinuxLinux

6.6Affected
before 6.6Not affected
6.6.141 through 6.6.*Not affected
6.12.91 through 6.12.*Not affected
6.18.33 through 6.18.*Not affected
7.0.10 through 7.0.*Not affected
7.1 and laterNot affected

References

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