dmaengine: dw-edma-pcie: Reject devices without driver data
3Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackepss 0.2%
exploitation probability
0.2%top 90% of all CVEs
observed exploitation
nono source reports it
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.
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/043acb00e4edd4b9ffb9dd0e357482dcd9086486https://git.kernel.org/stable/c/044f7b3252d4fb2143d4999eec2800c08f1001edhttps://git.kernel.org/stable/c/11d7cfe0c119691b2dafbb699bbca90258c678aahttps://git.kernel.org/stable/c/2733b5dcb5a4ba4446f7bac954b97e4501dcaa64https://git.kernel.org/stable/c/a1042599fa8f9e313be176eb1ea1ae199f983419