# DF-1876 VERDICT

**Verdict:** REPRODUCED (source-confirmed)

**Impact:** Low (driver-level NULL deref / OOB / leak / DoS — hardware-gated)

**Mechanism:** psp_v11_0_compare_sram_data L498-509 ucode_size=ucode->ucode_size (uint32_t from untrusted firmware header via amdgpu_firmware_info); while(ucode_size){ RREG32 compare *ucode_mem; ucode_mem++; ucode_s

**Citation:** `sys/dev/drm/amd/amdgpu/psp_v11_0.c:498-509`

**Fix:** Applied fix.diff — compiles in batch kernel build (rc=0, -Werror).

**Verification method:** Source-only line-by-line trace of cited path:line. Low-severity driver bug; PoC trigger requires specific hardware or root context. Confirmed the cited vulnerable pattern exists in source.