# DF-1589 VERDICT

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

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

**Mechanism:** vega10_processpptables.c:269-273 if ucRevId==1 patom_record_v2[ucNumEntries-1].ucACGEnable. ucNumEntries UCHAR; 0-1=-1 -> patom_record_v2[-1] reads 13B before entries[]. Called from vega10_pp_tables_i

**Citation:** `sys/dev/drm/amd/powerplay/hwmgr/vega10_processpptables.c:269-273`

**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.