// https://syzkaller.appspot.com/bug?id=6fbc91d0c6add1581a99602aa73375949eeae41b
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#ifndef SYS_ktrace
#define SYS_ktrace 45
#endif
#ifndef SYS_mmap
#define SYS_mmap 197
#endif
#ifndef SYS_open
#define SYS_open 5
#endif
#ifndef SYS_sendmsg
#define SYS_sendmsg 28
#endif
#ifndef SYS_socket
#define SYS_socket 394
#endif

static unsigned long long procid;

static void kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

static void sleep_ms(uint64_t ms)
{
  usleep(ms * 1000);
}

static uint64_t current_time_ms(void)
{
  struct timespec ts;
  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    exit(1);
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      execute_one();
      exit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      sleep_ms(1);
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[1] = {0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  memcpy((void*)0x20000000, "./file0\000", 8);
  syscall(SYS_open, 0x20000000ul, 0x6a0ul, 0ul);
  memcpy((void*)0x20000040, "./file0\000", 8);
  syscall(SYS_ktrace, 0x20000040ul, 4ul, 0xf0cul, 0);
  res = syscall(SYS_socket, 2ul, 2ul, 0);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20001480 = 0;
  *(uint32_t*)0x20001488 = 0;
  *(uint64_t*)0x20001490 = 0;
  *(uint64_t*)0x20001498 = 0;
  *(uint64_t*)0x200014a0 = 0x200003c0;
  memcpy((void*)0x200003c0,
         "\x10\x04\x00\x00\x00\xf0\xff\x00\x07\x00\x00\x00\x01\x00\x00\x00\x14"
         "\xe2\xd8\xdd\x5c\xeb\xb0\x41\xd1\x6b\x1f\x8e\xf0\x5a\x52\xf5\x80\x5d"
         "\xb7\x9a\x83\x97",
         38);
  *(uint64_t*)0x200014a8 = 0x10;
  *(uint32_t*)0x200014b0 = 0;
  syscall(SYS_sendmsg, r[0], 0x20001480ul, 0ul);
}
int main(void)
{
  syscall(SYS_mmap, 0x20000000ul, 0x1000000ul, 3ul, 0x1012ul, -1, 0ul, 0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}