r0 = syz_open_dev$loop(&(0x7f0000000000), 0x0, 0x0)
r1 = syz_open_dev$loop(&(0x7f0000000000), 0x10001, 0x0)
r2 = creat(&(0x7f0000000040)='./file0\x00', 0x0)
ioctl$LOOP_SET_FD(r1, 0x40081271, 0xffffffffffffffff)
ioctl$LOOP_SET_FD(r0, 0x4c00, r2)
openat$cgroup_root(0xffffffffffffff9c, 0x0, 0x200002, 0x0)
ioctl$sock_inet6_udp_SIOCINQ(r2, 0x541b, &(0x7f0000000100))
pwritev2(r1, 0x0, 0x0, 0x0, 0x0, 0x0)
ioctl$LOOP_SET_BLOCK_SIZE(0xffffffffffffffff, 0x4c09, 0x300)