kernel: drm/dp_mst: Fix resetting msg rx state after topology removal

A flaw was found in the Linux kernel's DisplayPort Multi-Stream Transport DP MST subsystem. A race condition can occur when a DisplayPort device is disconnected while sideband communication messages are actively being processed. A local user or an attacker with physical access to the display port...

kernel: drm/dp_mst: Fix resetting msg rx state after topology removal

A flaw was found in the Linux kernel's DisplayPort Multi-Stream Transport DP MST subsystem. A race condition can occur when a DisplayPort device is disconnected while sideband communication messages are actively being processed. A local user or an attacker with physical access to the display port...

PT-2025-3601

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.6.74 Description The issue arises when the MST topology is removed during the reception of an MST down reply or MST up request sideband message. This can cause a race condition between threads, leading to a...