# DF-1580 VERDICT

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

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

**Mechanism:** hptrr_osm_bsd.c:1265 kmalloc(nOutBufferSize, M_DEVBUF, M_WAITOK) NO M_ZERO. ldm writes only required bytes per ioctl. 1273-1277 copyout(lpOutBuffer, user, nOutBufferSize) copies FULL user-supplied siz

**Citation:** `sys/dev/raid/hptrr/hptrr_osm_bsd.c:1266-1277`

**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.