CVE-2026-93169 dmaengine: zynqmp_dma: fix race between runtime PM and device removal
A race condition in the ZynqMP DMA driver during device removal can cause a system crash, requiring local privileged access to exploit.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-93169?
CVE-2026-93169 is a vulnerability in Linux, published on 17 Sep 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:
dmaengine: zynqmp_dma: fix race between runtime PM and device removal
In zynqmp_dma_remove(), runtime PM was disabled only after checking state and doing a manual suspend. This can race with runtime PM in the remove/unbind (rmmod) path.
Disable runtime PM first, then suspend only if the device is not already suspended. To prevent any further runtime PM transitions.
Which versions are affected by CVE-2026-93169?
How do I fix CVE-2026-93169?
Apply the vendor's patch.
Is CVE-2026-93169 being exploited?
There is no known exploitation of CVE-2026-93169 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-93169, DEBIAN-CVE-2026-93169, GHSA-8fpv-h88w-w8wj, UBUNTU-CVE-2026-93169.