CVE-2026-72147 dmaengine: dw-edma-pcie: Reject devices without driver data
A local attacker can cause a kernel crash by binding a device without driver data to the dw-edma-pcie driver, leading to a NULL pointer dereference.
- 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-2026-72147?
CVE-2026-72147 is a 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:
dmaengine: dw-edma-pcie: Reject devices without driver data
dw_edma_pcie_probe() treats the PCI device ID driver_data as the template for the controller layout and copies it unconditionally. A device bound dynamically via sysfs can match the driver without that data, which leads to a NULL pointer dereference.
Reject such matches before enabling the device.
Which versions are affected by CVE-2026-72147?
How do I fix CVE-2026-72147?
Apply the vendor's patch.
Is CVE-2026-72147 being exploited?
There is no known exploitation of CVE-2026-72147 in the wild and no public exploit code.
Sources
Also known as BELL-CVE-2026-72147, DEBIAN-CVE-2026-72147, GHSA-47f2-6xxj-8w97, UBUNTU-CVE-2026-72147.