GPU drivers vulnerabilities

In GPU drivers, an integer overflow when calculating physical offsets for sparse PMRs may cause 32-bit truncation for PMRs larger than 4 GB, leading to incorrect GPU MMU mappings and potential access to unintended physical memory.

A vulnerability in the sparse memory implementation of GPU drivers allows out-of-bounds (OOB) kernel memory reads or writes. The flaw occurs when indexing pages larger than 4 kB in the page freeing logic, leading to incorrect buffer access.

Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permissions to memory buffers exported as read-only. This is caused by improper handling of the memory protections for the buffer resource.