CVE-2026-80583 ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses
Incorrect data type access in the LPASS TX macro audio driver causes control read failures on debug-enabled 64-bit kernels.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-80583?
CVE-2026-80583 is a high-severity vulnerability in Linux, published on 26 Aug 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In the Linux kernel, the following vulnerability has been resolved:
ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accesses
The "DEC0 MODE" to "DEC7 MODE" controls are enumerated, but tx_macro_dec_mode_get() and tx_macro_dec_mode_put() access their 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 tx-macro was missed.
On 64-bit kernels built with CONFIG_SND_CTL_DEBUG, the elem value sanity check catches the 4 bytes written past the enumerated item and every read of these controls fails with -EINVAL:
snd-sm8250 sound: control 2:0:0:DEC0 MODE:0: access overflow
Which versions are affected by CVE-2026-80583?
How do I fix CVE-2026-80583?
Apply the vendor's patch.
Is CVE-2026-80583 being exploited?
There is no known exploitation of CVE-2026-80583 in the wild and no public exploit code.
Sources
Also known as AZL-97680, BELL-CVE-2026-80583, DEBIAN-CVE-2026-80583, GHSA-4jrc-26j5-hv3j, UBUNTU-CVE-2026-80583.