r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
writev(r0, &(0x7f0000000180)=[{&(0x7f0000000200)="d24a7e76e21543dcb716f26cb5622c64800757ea1132b3ce0ec5e8db04039b3146", 0x21}], 0x1)