CVE-2026-74293 ASoC: fsl: fsl_audmix: Validate written enum values
Missing validation of enum values in the Linux kernel fsl_audmix driver allows out-of-bounds access, potentially leading to crashes or code execution.
- 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-2026-74293?
CVE-2026-74293 is a high-severity vulnerability in Linux, published on 15 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: fsl: fsl_audmix: Validate written enum values
fsl_audmix_put_mix_clk_src() and fsl_audmix_put_out_src() convert the user-provided enum item with snd_soc_enum_item_to_val() before checking whether the item is within the enum's item count.
The generic snd_soc_put_enum_double() helper performs that validation, but these callbacks use the converted value first: the clock-source path tests it with BIT(), and the output-source path indexes the prms transition table with it.
Reject out-of-range enum items before converting them.
Which versions are affected by CVE-2026-74293?
How do I fix CVE-2026-74293?
Apply the vendor's patch.
Is CVE-2026-74293 being exploited?
There is no known exploitation of CVE-2026-74293 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-74293, DEBIAN-CVE-2026-74293, GHSA-p8cv-f9j9-548c, UBUNTU-CVE-2026-74293.