CVE-2026-72260 ASoC: mediatek: mt8192: Check runtime resume during probe
A missing error check in the MT8192 audio driver probe can cause a PM usage count leak, potentially leading to denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-72260?
CVE-2026-72260 is a denial of service 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: mediatek: mt8192: Check runtime resume during probe
The MT8192 AFE probe enables runtime PM temporarily while reinitializing the regmap cache from hardware, but it uses pm_runtime_get_sync() without checking the return value. If runtime resume fails, probe keeps going without the device necessarily being accessible, and pm_runtime_get_sync() may leave the PM usage count incremented.
The regmap_reinit_cache() failure path also returns before dropping the temporary PM reference and before clearing pm_runtime_bypass_reg_ctl.
Use pm_runtime_resume_and_get() so resume failures do not leak a usage count, and clear the temporary bypass flag after dropping the probe PM reference on all regmap_reinit_cache() outcomes.
Which versions are affected by CVE-2026-72260?
How do I fix CVE-2026-72260?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-72260 being exploited?
There is no known exploitation of CVE-2026-72260 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72260, DEBIAN-CVE-2026-72260, GHSA-g833-2rhh-96rv, UBUNTU-CVE-2026-72260.