syzkaller-repros/linux/285343407387e269444777049c0f4c7a126ec48b.c

// KMSAN: uninit-value in rtm_dump_nexthop
// https://syzkaller.appspot.com/bug?id=285343407387e269444777049c0f4c7a126ec48b
// 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[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  intptr_t res = 0;
  res = syscall(__NR_socket, 0x10, 3, 0);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000000 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint64_t*)0x20000010 = 0x20000100;
  *(uint64_t*)0x20000100 = 0x20000040;
  memcpy((void*)0x20000040, "\x14\x00\x00\x00\x6a\x00\xfd\xff\x00\x01\x00\x00"
                            "\x00\x0f\x00\x00\x00\x00\x00\x00",
         20);
  *(uint64_t*)0x20000108 = 0x14;
  *(uint64_t*)0x20000018 = 1;
  *(uint64_t*)0x20000020 = 0;
  *(uint64_t*)0x20000028 = 0;
  *(uint32_t*)0x20000030 = 0;
  syscall(__NR_sendmsg, r[0], 0x20000000, 0);
  return 0;
}