# DF-1623 VERDICT

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

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

**Mechanism:** atmel_mxt.c:418 sc->cmdprocobj = mxt_findobject(T6) NO NULL check (only msgprocobj T5 checked at 417-423). 437 init_device success -> atmel_reset_device -> 983 mxt_write_object_off(sc, sc->cmdprocobj,

**Citation:** `sys/dev/smbus/atmel_mxt/atmel_mxt.c:418-983`

**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.