### DF-1011 VULNERABLE build+run
pass1: nfmt=1 nfrm=258 nitv=254 (true nitv should be 65790)
kmalloc interval slab: nitv=254 -> 1016 bytes
pass2: actually wrote 65790 intervals (263160 bytes) into 1016-byte slab
RESULT: OVERFLOW CONFIRMED — 262144 bytes (65536 intervals) written past the slab into the kernel heap
rc=1