r0 = syz_open_dev$tty20(0xc, 0x4, 0x0)
writev(r0, &(0x7f0000000380)=[{&(0x7f0000000280)="2143b4e5e038d2094a9713d231c1850b526fbfa797a1ca55a8daed89f3d4b21ae45577e70f44d1461b48", 0x2a}], 0x1)