// https://syzkaller.appspot.com/bug?id=07c86caf545892c7d50891a5e414b12243ee9c99
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <fcntl.h>
#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <unistd.h>

#include <stdint.h>
#include <string.h>

static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block",
            (uint8_t)a1, (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf));
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

static void test();

void loop()
{
  while (1) {
    test();
  }
}

long r[1];
void* thr(void* arg)
{
  switch ((long)arg) {
  case 0:
    syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul,
            0xfffffffffffffffful, 0x0ul);
    break;
  case 1:
    memcpy((void*)0x20000000, "/dev/sg#", 9);
    r[0] = syz_open_dev(0x20000000ul, 0x0ul, 0x2ul);
    break;
  case 2:
    *(uint64_t*)0x20001000 = (uint64_t)0x0;
    *(uint64_t*)0x20001008 = (uint64_t)0x0;
    *(uint16_t*)0x20001010 = (uint16_t)0x0;
    *(uint16_t*)0x20001012 = (uint16_t)0x0;
    *(uint32_t*)0x20001014 = (uint32_t)0x0;
    *(uint64_t*)0x20001018 = (uint64_t)0x0;
    *(uint64_t*)0x20001020 = (uint64_t)0x0;
    *(uint16_t*)0x20001028 = (uint16_t)0x0;
    *(uint16_t*)0x2000102a = (uint16_t)0x0;
    *(uint32_t*)0x2000102c = (uint32_t)0x2;
    *(uint64_t*)0x20001030 = (uint64_t)0x0;
    *(uint64_t*)0x20001038 = (uint64_t)0x0;
    *(uint16_t*)0x20001040 = (uint16_t)0x0;
    *(uint16_t*)0x20001042 = (uint16_t)0x0;
    *(uint32_t*)0x20001044 = (uint32_t)0x0;
    *(uint64_t*)0x20001048 = (uint64_t)0x0;
    *(uint64_t*)0x20001050 = (uint64_t)0x2710;
    *(uint16_t*)0x20001058 = (uint16_t)0x0;
    *(uint16_t*)0x2000105a = (uint16_t)0x0;
    *(uint32_t*)0x2000105c = (uint32_t)0x0;
    syscall(__NR_write, r[0], 0x20001000ul, 0x60ul);
    break;
  case 3:
    *(uint64_t*)0x20b16000 = (uint64_t)0x20dc8000;
    *(uint64_t*)0x20b16008 = (uint64_t)0xa5;
    syscall(__NR_readv, r[0], 0x20b16000ul, 0x1ul);
    break;
  }
  return 0;
}

void test()
{
  long i;
  pthread_t th[8];

  memset(r, -1, sizeof(r));
  srand(getpid());
  for (i = 0; i < 4; i++) {
    pthread_create(&th[i], 0, thr, (void*)i);
    usleep(rand() % 10000);
  }
  for (i = 0; i < 4; i++) {
    pthread_create(&th[4 + i], 0, thr, (void*)i);
    if (rand() % 2)
      usleep(rand() % 10000);
  }
  usleep(rand() % 100000);
}

int main()
{
  loop();
  return 0;
}