syz_open_procfs$namespace(0x0, &(0x7f0000000000)='ns/cgroup\x00')
openat$cgroup_root(0xffffffffffffff9c, &(0x7f00000003c0)='./cgroup.net/syz0\x00', 0x200002, 0x0)
pipe2$9p(&(0x7f0000000440)={0xffffffffffffffff, <r0=>0xffffffffffffffff}, 0x0)
write$P9_RLERROR(r0, &(0x7f0000000480)={0x13, 0x7, 0x2, {0xa, '@.#$}[j%:%'}}, 0x13)
openat$snapshot(0xffffffffffffff9c, &(0x7f00000004c0), 0x4040, 0x0)