Bug 2502308 (CVE-2026-63838) - CVE-2026-63838 kernel: ASoC: rsnd: Fix potential out-of-bounds access of component_dais[]
Summary: CVE-2026-63838 kernel: ASoC: rsnd: Fix potential out-of-bounds access of comp...
Keywords:
Status: NEW
Alias: CVE-2026-63838
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-19 15:03 UTC by OSIDB Bzimport
Modified: 2026-07-20 16:59 UTC (History)
2 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-19 15:03:05 UTC
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.


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