CVE-2026-72415 ASoC: SDCA: Validate written enum value in ge_put_enum_double()
A local attacker can trigger an out-of-bounds read in the Linux kernel SDCA audio driver by supplying an invalid enum index, potentially leaking heap memory.
- 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-2026-72415?
CVE-2026-72415 is a high-severity memory corruption 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: SDCA: Validate written enum value in ge_put_enum_double()
ge_put_enum_double() passes the user-supplied enumeration index item[0] to snd_soc_enum_item_to_val() without checking it against the number of items in the enum:
ret = snd_soc_enum_item_to_val(e, item[0]);
snd_soc_enum_item_to_val() indexes the heap-allocated e->values[] array with that index (e->values is set from a devm_kcalloc() of e->items entries), so a control write with an out-of-range item[0] reads past the end of the values buffer. The bounds check in snd_soc_dapm_put_enum_double() only runs afterwards, so it does not prevent the read here.
Reject an out-of-range item before using it, matching the other enum put handlers.
This issue was pointed out by the Sashiko AI review bot while reviewing a related enum-validation series: https://lore.kernel.org/all/[email protected]/
Which versions are affected by CVE-2026-72415?
How do I fix CVE-2026-72415?
Apply the vendor's patch.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-72415 being exploited?
There is no known exploitation of CVE-2026-72415 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-72415, GHSA-cq9w-mfcc-7q5j, UBUNTU-CVE-2026-72415.