ioctl$LOOP_CTL_GET_FREE(r2, 0x4c82)
r3 = openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000000180), 0x180, 0x0)
r4 = ioctl$LOOP_CTL_GET_FREE(r3, 0x4c82)
ioctl$LOOP_CTL_REMOVE(r3, 0x4c81, r4)
ioctl$LOOP_CTL_REMOVE(0xffffffffffffffff, 0x4c81, r4)
BUG: leak checking failed