openat$dir(0xffffffffffffff9c, 0x0, 0x0, 0x0)
unlinkat(0xffffffffffffffff, 0x0, 0x0)
openat$dir(0xffffffffffffff9c, &(0x7f00000009c0)='./file0\x00', 0x0, 0x0)
openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000c40)='./cgroup/syz1\x00', 0x200002, 0x0)