# DF-1602 VERDICT

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

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

**Mechanism:** scvgarndr.c:340-351 reads sc_vtb_getc(pos+scp->xsize{,+1}) and 384-391 writes sc_vtb_putc(pos+scp->xsize{,+1}) with NO bounds check. pos itself clamped [0,xsize*ysize-1] by set_mouse_pos, but pos+xsiz

**Citation:** `sys/dev/misc/syscons/scvgarndr.c:340-391`

**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.