CVE-2026-72302 ASoC: SOF: ipc3-control: Use overflow checks in control_update size calc
An integer overflow in the Linux kernel's SOF IPC3 control update allows out-of-bounds access, potentially leading to code execution or denial of service.
- 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-2026-72302?
CVE-2026-72302 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: SOF: ipc3-control: Use overflow checks in control_update size calc
In sof_ipc3_control_update(), the expected_size calculation uses firmware-provided cdata->num_elems in arithmetic that could overflow on 32-bit platforms, wrapping to a small value. This would allow the cdata->rhdr.hdr.size comparison to pass with mismatched sizes, potentially leading to out-of-bounds access in snd_sof_update_control.
Use check_mul_overflow() and check_add_overflow() to detect and reject overflowed size calculations.
Which versions are affected by CVE-2026-72302?
How do I fix CVE-2026-72302?
Apply the vendor's patch.
Is CVE-2026-72302 being exploited?
There is no known exploitation of CVE-2026-72302 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72302, DEBIAN-CVE-2026-72302, GHSA-vwf3-ww8v-29c4, UBUNTU-CVE-2026-72302.