r0 = syz_open_dev$tty1(0xc, 0x4, 0x1)
ioctl$FIONREAD(r0, 0x541b, 0x0)
ioctl$TCSETSF2(r0, 0x402c542d, &(0x7f0000002280)={0x0, 0x3, 0x24, 0x0, 0x0, "f7f9d1306018688ef1a6b07bdd129f3f9c4a69", 0x40})
r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000040)='net/raw\x00')
r2 = fcntl$dupfd(r0, 0x406, r1)
ioctl$TIOCVHANGUP(r2, 0x5437, 0x0)