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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-63838
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-19 15:16:50 UTC
Updated2026-07-19 15:16:50 UTC
DescriptionIn 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.

Risk And Classification

EPSS: 0.001680000 probability, percentile 0.064710000 (date 2026-07-20)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac 9f1daac27ca28e98c8c0e4450de42bb68d547250 git Not specified
CNA Linux Linux affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac 15e7b2ac2455995a6af02b9d3da7a432837aaf72 git Not specified
CNA Linux Linux affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac 134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5 git Not specified
CNA Linux Linux affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac a62b3e6e42359a79158c134e3cf5c74fe160c3f5 git Not specified
CNA Linux Linux affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac f9e437cddf6cf9e603bdaefe148c1f4792aaf39c git Not specified
CNA Linux Linux affected 6.6 Not specified
CNA Linux Linux unaffected 6.6 semver Not specified
CNA Linux Linux unaffected 6.6.141 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.91 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.33 6.18.* semver Not specified
CNA Linux Linux unaffected 7.0.10 7.0.* semver Not specified
CNA Linux Linux unaffected 7.1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/15e7b2ac2455995a6af02b9d3da7a432837aaf72 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a62b3e6e42359a79158c134e3cf5c74fe160c3f5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/f9e437cddf6cf9e603bdaefe148c1f4792aaf39c 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/9f1daac27ca28e98c8c0e4450de42bb68d547250 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
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