r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000040), 0x0, 0x0) stat(&(0x7f0000001cc0)='.\x00', &(0x7f0000001c00)={0x0, 0x0, 0x0, 0x0, 0x0}) setresuid(0xffffffffffffffff, r1, 0x0) ioctl$TIOCSLCKTRMIOS(r0, 0x5457, 0x0)