r0 = syz_open_procfs$namespace(0x0, &(0x7f0000000080)='ns/mnt\x00') setresuid(0x0, 0xee01, 0x0) open_by_handle_at(r0, &(0x7f0000000000)=@ceph_nfs_snapfh={0x1c, 0xf1, {0x8}}, 0x0)