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CVE-2026-63838

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

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac before 9f1daac27ca28e98c8c0e4450de42bb68d547250; affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac before 15e7b2ac2455995a6af02b9d3da7a432837aaf72; affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac before 134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5; affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac before a62b3e6e42359a79158c134e3cf5c74fe160c3f5; affected 547b02f74e4ac1e7d295a6266d5bc93a647cd4ac before f9e437cddf6cf9e603bdaefe148c1f4792aaf39c
Linux / Linuxaffected 6.6; unaffected 0 before 6.6; unaffected 6.6.141 through 6.6.*; unaffected 6.12.91 through 6.12.*; unaffected 6.18.33 through 6.18.*; unaffected 7.0.10 through 7.0.*; unaffected 7.1 through *

CWE

No CWE identifiers supplied.

References