CVE-2026-80583
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
CSIRTS triage
- What
- Incorrect enum kcontrol access patterns in lpass-tx-macro audio codec driver.
- Who is affected
- Systems using Qualcomm LPASS transmit macro audio codec.
- Urgency
- Low priority; limited scope to audio codec controls with minimal security impact.
- Action
- Update kernel with enum kcontrol access correction in lpass-tx-macro driver.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Low exploitation risk0.12% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 2% of all EPSS-scored CVEs.
Advisory coverage (3)
- unknownDSA-6477-1 linux - security updatedebian · 2026-08-29
- highCVE-2026-80583: In the Linux kernel, the following vulnerability has been resolved: ASoC: codecs: lpass-tx-mac…nvd · 2026-08-26
- lowCVE-2026-80583: ASoC: codecs: lpass-tx-macro: Fix enum kcontrol accessesmsrc · 2026-08-11
External references
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