# https://syzkaller.appspot.com/bug?id=f5cecfecce637196c3cd645a5816ce6089c583f2
# See https://goo.gl/kgGztJ for information about syzkaller reproducers.
#{"threaded":true,"repeat":true,"procs":6,"slowdown":1,"sandbox":"none","tun":true,"netdev":true,"resetnet":true,"cgroups":true,"binfmt_misc":true,"close_fds":true,"usb":true,"sysctl":true,"tmpdir":true,"segv":true}
mkdirat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000100)='./cgroup/syz0\x00', 0x1ff)
bpf$BPF_TASK_FD_QUERY(0x14, &(0x7f0000000080)={0x0, 0xffffffffffffffff, 0x0, 0x7, &(0x7f0000000000)='cgroup\x00'}, 0x30)
r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000000), 0x200002, 0x0)
r1 = openat$cgroup_subtree(r0, &(0x7f0000000040), 0x2, 0x0)
write$cgroup_subtree(r1, &(0x7f0000000140)={[{0x2b, 'pids'}]}, 0x6) (fail_nth: 4)