GPU DDK - Duplicate calls to RGXCreateFreeList on the same reservation leads to GPU UAF

Software installed and run as a non-privileged user may conduct improper GPU system calls to achieve unauthorised reads and writes of physical memory from the GPU HW.

GPU DDK - MLIST/PM render state buffers writable allowing arbitrary writes to kernel memory pages

Software installed and run as a non-privileged user may conduct improper GPU system calls to allow unprivileged access to arbitrary physical memory page.

GPU DDK - DevmemIntGetReservationData does not ref the PMR it returns

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause mismanagement of reference counting to cause a potential use after free. Improper reference counting on an internal resource caused scenario where potential for use after free was present.

GPU DDK - Disguised freelist buffers passed to RGXCreateHWRTDataSet can cause arbitrary physical memory writes corrupting memory

Software installed and run as a non-privileged user may conduct improper GPU system calls to subvert GPU HW to write to arbitrary physical memory pages. Under certain circumstances this exploit could be used to corrupt data pages not allocated by the GPU driver but memory pages in use by the kernel and drivers running on the platform altering their behaviour. This attack can lead the GPU to perform write operations on restricted internal GPU buffers that can lead to a second order affect of corrupted arbitrary physical memory.

GPU DDK - Reservation::psMappedPMR can change while used by a freelist -> UAF

Software installed and run as a non-privileged user may conduct improper GPU system calls to cause mismanagement of resources reference counting creating a potential use after free scenario. Improper resource management and reference counting on an internal resource caused scenario where potential write use after free was present.

GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world

Intermediate register values of secure workloads can be exfiltrated in workloads scheduled from applications running in the non-secure environment of a platform.

GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP

A web page that contains unusual GPU shader code is loaded from the Internet into the GPU compiler process triggers a write use-after-free crash in the GPU shader compiler library. On certain platforms, when the compiler process has system privileges this could enable further exploits on the device. The shader code contained in the web page executes a path in the compiler that held onto an out of date pointer, pointing to a freed memory object.

GPU DDK - Multiple calls into PhysmemGEMPrimeExport can inherit write access permission for an existing read-only dma_buf import PMR

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.

GPU DDK - TOCTOU bug affecting psFWMemContext->uiPageCatBaseRegSet

Kernel or driver software installed on a Guest VM may post improper commands to the GPU Firmware to exploit a TOCTOU race condition and trigger a read and/or write of data outside the allotted memory escaping the virtual machine.

GPU DDK - KASAN Read UAF in the PVRSRVBridgeRGXSubmitTransfer2 due to improper error handling code

Software installed and run as a non-privileged user may conduct improper GPU system calls to trigger reads of stale data that can lead to kernel exceptions and write use-after-free. The Use After Free common weakness enumeration was chosen as the stale data can include handles to resources in which the reference counts can become unbalanced. This can lead to the premature destruction of a resource while in use.

GPU DDK - Guest VM can override its own FW VZ connection state after the FW has close it

Software installed and running inside a Guest VM may override Firmware's state and gain access to the GPU.

GPU DDK - Guest VM can delay the FW and GPU from processing workloads from other VMs

Software installed and running inside a Guest VM may conduct improper GPU system calls to prevent other Guests from running work on the GPU.

Possible kernel exceptions caused by reading and writing kernel heap data after free.

GPU DDK - Security fix for PP-171570 can lead to an uninitialised pointer dereference and memory leak

Possible memory leak or kernel exceptions caused by reading kernel heap data after free or NULL pointer dereference kernel exception.

GPU DDK - NULL Pointer dereference occurs in LockHandle on bridge entry when connection misused

Software installed and run as a non-privileged user may conduct improper GPU system calls to trigger NULL pointer dereference kernel exceptions.

GPU DDK - Freelist GPU VA can be remapped to another reservation/PMR to trigger GPU arbitrary write to physical memory

Software installed and run as a non-privileged user may conduct improper GPU system calls to subvert GPU HW to write to arbitrary physical memory pages.

GPU DDK - rgxfw_hwperf_get_packet_buffer OOB write

Kernel software installed and running inside a Guest VM may exploit memory shared with the GPU Firmware to write data outside the Guest's virtualised GPU memory.

GPU kernel implementations susceptible to memory leak

A GPU kernel can read sensitive data from another GPU kernel (even from another user or app) through an optimized GPU memory region called _local memory_ on various architectures.

In PVRSRVBridgeRGXKickTA3D2 of server_rgxta3d_bridge.c, there is a possible arbitrary code execution due to improper input validation. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.

In DevmemIntPFNotify of devicemem_server.c, there is a possible use-after-free due to a race condition. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.