CVE-2026-63838

Summary

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 Software

VendorProductVersion RangeStatus
LinuxLinux547b02f74e4ac1e7d295a6266d5bc93a647cd4ac < 9f1daac27ca28e98c8c0e4450de42bb68d547250affected
LinuxLinux547b02f74e4ac1e7d295a6266d5bc93a647cd4ac < 15e7b2ac2455995a6af02b9d3da7a432837aaf72affected
LinuxLinux547b02f74e4ac1e7d295a6266d5bc93a647cd4ac < 134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5affected
LinuxLinux547b02f74e4ac1e7d295a6266d5bc93a647cd4ac < a62b3e6e42359a79158c134e3cf5c74fe160c3f5affected
LinuxLinux547b02f74e4ac1e7d295a6266d5bc93a647cd4ac < f9e437cddf6cf9e603bdaefe148c1f4792aaf39caffected
LinuxLinux6.6affected
LinuxLinux0 < 6.6unaffected
LinuxLinux6.6.141 <= 6.6.*unaffected
LinuxLinux6.12.91 <= 6.12.*unaffected
LinuxLinux6.18.33 <= 6.18.*unaffected
LinuxLinux7.0.10 <= 7.0.*unaffected
LinuxLinux7.1 <= *unaffected

Weaknesses

References