CVE-2026-72263 ASoC: SOF: topology: fix memory leak in snd_sof_load_topology
A memory leak in the Linux kernel's SOF topology loader allows local attackers to exhaust system memory, causing 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-2026-72263?
CVE-2026-72263 is a 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: SOF: topology: fix memory leak in snd_sof_load_topology
When the topology filename contains "dummy" and tplg_cnt is 0, the function returns -EINVAL directly without freeing the tplg_files allocated by kcalloc() at line 2497. This leaks memory on every such topology load attempt.
Fix this by setting ret = -EINVAL and jumping to the out: label, which already handles the kfree(tplg_files) cleanup.
Which versions are affected by CVE-2026-72263?
How do I fix CVE-2026-72263?
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-2026-72263 being exploited?
There is no known exploitation of CVE-2026-72263 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-72263, GHSA-grg6-q2j8-ggrp, UBUNTU-CVE-2026-72263.