r0 = add_key$keyring(&(0x7f00000005c0), &(0x7f0000000600)={'syz', 0x2}, 0x0, 0x0, 0xfffffffffffffffd)
keyctl$restrict_keyring(0x1d, r0, &(0x7f0000000640)='big_key\x00', &(0x7f0000000680)='syztnl2\x00')