r0 = syz_open_dev$loop(&(0x7f0000000100), 0x0, 0x0)
r1 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000080)='/proc/bus/input/devices\x00', 0x0, 0x0)
r2 = dup2(r0, r1)
ioctl$LOOP_CHANGE_FD(r2, 0x125d, 0xffffffffffffffff)