syzkaller-repros/linux/90f9738058b5de9e9e580f12eabb2816d506a610.c

// KASAN: use-after-free Read in tcp_init_tso_segs
// https://syzkaller.appspot.com/bug?id=90f9738058b5de9e9e580f12eabb2816d506a610
// status:fixed
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  intptr_t res = 0;
  res = syscall(__NR_socket, 0xa, 1, 0);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x20000180 = 0xa;
  *(uint16_t*)0x20000182 = htobe16(0x4e22);
  *(uint32_t*)0x20000184 = htobe32(0);
  *(uint64_t*)0x20000188 = htobe64(0);
  *(uint64_t*)0x20000190 = htobe64(1);
  *(uint32_t*)0x20000198 = 0;
  syscall(__NR_bind, r[0], 0x20000180, 0x1c);
  syscall(__NR_listen, r[0], 0);
  res = syscall(__NR_socket, 0xa, 1, 0);
  if (res != -1)
    r[1] = res;
  *(uint16_t*)0x200000c0 = 0xa;
  *(uint16_t*)0x200000c2 = htobe16(0x4e22);
  *(uint32_t*)0x200000c4 = htobe32(0);
  memcpy((void*)0x200000c8,
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint32_t*)0x200000d8 = 0;
  syscall(__NR_sendto, r[1], 0, 0x98, 0x20040010, 0x200000c0, 0x1c);
  return 0;
}