CVE-2026-63838

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

N/A
Published: July 19, 2026 at 02:04 PM UTC
Updated: July 27, 2026 at 05:57 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.6 ≤ v < 6.12.916.6 ≤ v < 6.18.336.6 ≤ v < 6.6.1416.6 ≤ v < 7.0.106.6 ≤ v < 7.1547b02f74e4ac1e7d295a6266d5bc93a647cd4ac6.6
Vendor states this is fixed in 134c61925e9e9ee0f4fdbab5c3984d5bb024f5f5 (fixed)
Vendor states this is fixed in 15e7b2ac2455995a6af02b9d3da7a432837aaf72 (fixed)
Vendor states this is fixed in 9f1daac27ca28e98c8c0e4450de42bb68d547250 (fixed)
Vendor states this is fixed in a62b3e6e42359a79158c134e3cf5c74fe160c3f5 (fixed)
Vendor states this is fixed in f9e437cddf6cf9e603bdaefe148c1f4792aaf39c (fixed)
Vendor states this is fixed in 6.12.91 (unaffected)
Vendor states this is fixed in 6.18.33 (unaffected)
Vendor states this is fixed in 6.6 (unaffected)
Vendor states this is fixed in 6.6.141 (unaffected)
Vendor states this is fixed in 7.0.10 (unaffected)
Vendor states this is fixed in 7.1 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

Quick Info

StatusAWAITING ANALYSIS

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