In the Linux kernel, the following vulnerability has been resolved:

accel/amdxdna: Validate command buffer payload count

The count field in the command header is used to determine the valid payload size. Verify that the valid payload does not exceed the remaining buffer space.

In the Linux kernel, the following vulnerability has been resolved:

accel/amdxdna: Fix out-of-bounds memset in command slot handling

The remaining space in a command slot may be smaller than the size of the command header. Clearing the command header with memset() before verifying the available slot space can result in an out-of-bounds write and memory corruption.

Fix this by moving the memset() call after the size validation.