CVE-2026-49747
GPU DDK - OOB write for mappings larger than 4GB due to integer overflow in PVRDmaBufOpsMapCommon
Description
Software installed and run as a non-privileged user may conduct GPU system calls to trigger an integer overflow and allow OOB writes to GPU buffers. The integer overflow caused when mapping a GPU buffer >4GB causes corruption of array length, and can lead to kernel panics or out of bounds access.
INFO
Published Date :
Nov. 13, 2026, 2:15 a.m.
Last Modified :
Nov. 13, 2026, 2:15 a.m.
Remotely Exploit :
No
Source :
imaginationtech
Solution
- Correct integer overflow calculations for GPU buffers.
- Validate GPU buffer sizes rigorously.
- Implement bounds checking for buffer accesses.
- Apply vendor-supplied patches or updates.
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