# DF-1583 VERDICT

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

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

**Mechanism:** mfi_tbolt.c:471-480 error path frees slots + pool, sets sc->mfi_cmd_pool_tbolt=NULL, but NO return -> falls through to next loop iteration writing sc->mfi_cmd_pool_tbolt[i] = kmalloc() through NULL po

**Citation:** `sys/dev/raid/mfi/mfi_tbolt.c:455-480`

**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.