CVE-2026-80910: ASoC: codecs: lpass-wsa-macro: Fix enum kcontrol accesses
In the Linux kernel, the following vulnerability has been resolved:
ASoC: codecs: lpass-wsa-macro: Fix enum kcontrol accesses
EAR SPKR PA Gain" and the four "WSA RX Mux" controls are enumerated, but their get and put callbacks access the value through ucontrol->value.integer.value[0] (a long) instead of ucontrol->value.enumerated.item[0] (an unsigned int).
This same pattern was fixed in the sibling drivers by commit bcfe5f76cc40 ("ASoC: codecs: rx-macro: fix accessing array out of bounds for enum type") and commit 0ea5eff7c606 ("ASoC: codecs: va-macro: fix accessing array out of bounds for enum type"), but wsa-macro was missed.
On 64-bit kernels with CONFIGSNDCTLDEBUG this trips the elem value sanity check and every read of these controls fails with -EINVAL.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
Linux kernel (ASoC: codecs: lpass-wsa-macro: Fix enum kcontrol accesses)to a version that resolves this vulnerability.Patch 0ea5eff7c606 - Upgrade
Upgrade
Linux kernel (ASoC: codecs: lpass-wsa-macro: Fix enum kcontrol accesses)to a version that resolves this vulnerability.Patch bcfe5f76cc40
Event History
Frequently Asked Questions
Which systems are affected in practice?
The failure is described for 64-bit Linux kernel systems with CONFIG_SND_CTL_DEBUG enabled that use the lpass-wsa-macro codec controls. Under those conditions, reads of the affected enumerated controls fail with -EINVAL.
Which audio controls are implicated?
The affected controls are "EAR SPKR PA Gain" and the four "WSA RX* Mux" controls. Their enum get and put callbacks use the integer value field instead of the enumerated item field.
How can I determine whether the issue is present?
On a 64-bit kernel with CONFIG_SND_CTL_DEBUG enabled, attempting to read one of the affected controls will trip the element-value sanity check and return -EINVAL. The provided stable kernel references identify fixes for this issue.