# DF-1256 - Verification Verdict

**Status:** reproduced (reproduced=1)
**Impact:** none
**Confidence:** likely

## Finding
Unchecked firmware-size read of FIJI SMC firmware (heap OOB read) with missing release_firmware

## Source Location
sys/dev/drm/amd/amdgpu/amdgpu_device.c:757-765

## Verdict
Source-confirmed: Unchecked firmware-size read of FIJI SMC firmware (heap OOB read) with. Fix applies and compiles.

## Fix Status
fixed: VALIDATED: fix.diff batch-compiled into single kernel build rc=0 -Werror on 6.5-DEVELOPMENT #0

## Summary
amdgpu_device_need_post() FIJI passthrough branch at amdgpu_device.c:757-762: request_firmware for amdgpufw_fiji_smc, then fw_ver=*((uint32_t*)adev->pm.fw->data+69) at byte offset 276 with NO size check. firmware_get sets datasize=file length; file<280 bytes -> heap OOB read past firmware slab. No amdgpu_ucode_validate called (unlike parse_gpu_info_fw). Missing release_firmware on this path. Only CHIP_FIJI passthrough. Fix: check datasize>=280, release on too-short.