r0 = openat$procfs(0xffffffffffffff9c, &(0x7f0000000040)='/proc/vmallocinfo\x00', 0x0, 0x0)
r1 = syz_open_dev$tty20(0xc, 0x4, 0x1)
sendfile(r1, r0, 0x0, 0xffe3)
ioctl$TCSETSF(r1, 0x5404, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x0, 0x0, "6dd9f255cb4277c0eba3768f4c8058a03abf77"})