// https://syzkaller.appspot.com/bug?id=b428dffd6b64e8b746e20fc6fd028eca9577e215
// 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_mknod
#define SYS_mknod 450
#endif
#ifndef SYS_mmap
#define SYS_mmap 197
#endif
#ifndef SYS_open
#define SYS_open 5
#endif
#ifndef SYS_pwritev
#define SYS_pwritev 290
#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*)0x20000280, "./file0\000", 8);
  syscall(SYS_mknod, /*file=*/0x20000280ul, /*mode=*/0x2000ul, /*dev=*/0x200ul);
  memcpy((void*)0x20000840, "./file0\000", 8);
  res = syscall(SYS_open, /*file=*/0x20000840ul, /*flags=*/0x40000400000002c2ul,
                /*mode=*/0ul);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000180 = 0;
  *(uint64_t*)0x20000188 = 0;
  *(uint64_t*)0x20000190 = 0x20000000;
  memset((void*)0x20000000, 205, 1);
  *(uint64_t*)0x20000198 = 0xffffffa2;
  *(uint64_t*)0x200001a0 = 0x20000040;
  memcpy(
      (void*)0x20000040,
      "\x9c\xc0\x09\xa8\x7e\x77\x7e\x9a\xc8\x11\x1f\x8f\x5b\x94\x8b\xb4\x38\xf7"
      "\x16\x04\x10\xb3\x37\x78\xa3\xac\x49\x1c\xc3\x75\x59\xda\x1a\x3d\xbc\xb8"
      "\xe2\xea\x55\x0d\xcc\xc6\x6b\x5e\x72\x0a\x86\x21\xe2\x93\x1a\xbd\xfd\xcd"
      "\x96\x9b\x10\x67\x67\xcf\x1b\x2c\xa8\x38\x15\xf1\x52\x4a\x05\x19\xe2\xcc"
      "\xa7\x02\xe2\x41\x54\x55\x67\xfd\xd8\x00\xb9\x01\x6c\xd6\xc2\xa1\xb5\x25"
      "\xad\xac\x66\xa0\x8a\xf7\x8d\x46\xd1\xd8\x00\xbf\xb8\xe6\xaa\x63\xc4\x5e"
      "\x0a\xd3\x65\xb4\xa0\x8a\x06\xd2\x68\xe1\xc7\xb1\x26\xfa\xb9\x73\x42\x8d"
      "\x1d\x12\xaf\x6f\x32\x4d\xd3\x22\x48\xa1\xdb\x6e\x26\xdd\x4f\x12\xa4\xf9"
      "\xde\x39\xde\xc3\x9b\xa8\x0a\x30\x32\x28\xce\x1f\xd5\x0f\xe7\x39\x1e\xeb"
      "\xfb\x32\x7a\xb4\x93\x10\x82\xd4\x1b\x4d\xd6\x4c\x01\x88\xbd\x94\x8d\xb5"
      "\x8e\x31\x28\x32\xe2\x70\x01\x8d\xb5\x78\x85\x15\xdb\xba\x51\xfd\x33\xca"
      "\xef\x5a\x5c\xb3\x1e\xf2\x3d\x07\x4c\x29\xa0\x57\x36\x45\x1e\x96\x3a\x9e"
      "\xf0\xf6\xdf\x39\x7d\xf6\x79\x3e\x4f\xb2\x7f\x2c\x9b\x3d\x81\x04\x6a\x43"
      "\xcb\x8c\xfb\x35\x76\x0f\xb0\x42\xb9\x16\xed\x04\x50\x45\xc2\x08\x12\xe0"
      "\x47\xb7\x5b\x3d\x2a\x6e\xc8\x00\x80\x00\x00\x00\x00\x00\x00",
      267);
  *(uint64_t*)0x200001a8 = 0xe1;
  syscall(SYS_pwritev, /*fd=*/r[0], /*vec=*/0x20000180ul, /*vlen=*/3ul,
          /*off=*/8ul);
}
int main(void)
{
  syscall(SYS_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul, /*prot=*/3ul,
          /*flags=*/0x1012ul, /*fd=*/-1, /*pad=*/0ul, /*offset=*/0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}