r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000000), 0x0, 0x0)
ioctl$TIOCSTI(r0, 0x5412, &(0x7f0000000080))
r1 = dup(r0)
ioctl$TIOCSTI(r1, 0x5412, &(0x7f0000000180))
readv(r0, &(0x7f0000000040)=[{&(0x7f00000000c0)=""/134, 0x86}], 0x1)