r0 = syz_open_dev$sg(&(0x7f0000002ac0), 0x0, 0x0) add_key$keyring(&(0x7f0000000500), 0x0, 0x0, 0x0, 0xffffffffffffffff) readv(r0, &(0x7f0000000000)=[{&(0x7f0000000040)=""/24, 0x18}], 0x1)