// https://syzkaller.appspot.com/bug?id=d6533ca4afc571e2db183c47b749ea44c1c5c2db
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <errno.h>
#include <linux/futex.h>
#include <pthread.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <sys/prctl.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}
#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

static void fail(const char* msg, ...)
{
  int e = errno;
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}

static uint64_t current_time_ms()
{
  struct timespec ts;

  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    fail("clock_gettime failed");
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void execute_one();
extern unsigned long long procid;

static void loop()
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      fail("clone failed");
    if (pid == 0) {
      prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
      setpgrp();
      execute_one();
      doexit(0);
    }

    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      int res = waitpid(-1, &status, __WALL | WNOHANG);
      if (res == pid) {
        break;
      }
      usleep(1000);
      if (current_time_ms() - start < 3 * 1000)
        continue;
      kill(-pid, SIGKILL);
      kill(pid, SIGKILL);
      while (waitpid(-1, &status, __WALL) != pid) {
      }
      break;
    }
  }
}

struct thread_t {
  int created, running, call;
  pthread_t th;
};

static struct thread_t threads[16];
static void execute_call(int call);
static int running;

static void* thr(void* arg)
{
  struct thread_t* th = (struct thread_t*)arg;
  for (;;) {
    while (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE))
      syscall(SYS_futex, &th->running, FUTEX_WAIT, 0, 0);
    execute_call(th->call);
    __atomic_fetch_sub(&running, 1, __ATOMIC_RELAXED);
    __atomic_store_n(&th->running, 0, __ATOMIC_RELEASE);
    syscall(SYS_futex, &th->running, FUTEX_WAKE);
  }
  return 0;
}

static void execute(int num_calls)
{
  int call, thread;
  running = 0;
  for (call = 0; call < num_calls; call++) {
    for (thread = 0; thread < sizeof(threads) / sizeof(threads[0]); thread++) {
      struct thread_t* th = &threads[thread];
      if (!th->created) {
        th->created = 1;
        pthread_attr_t attr;
        pthread_attr_init(&attr);
        pthread_attr_setstacksize(&attr, 128 << 10);
        pthread_create(&th->th, &attr, thr, th);
      }
      if (!__atomic_load_n(&th->running, __ATOMIC_ACQUIRE)) {
        th->call = call;
        __atomic_fetch_add(&running, 1, __ATOMIC_RELAXED);
        __atomic_store_n(&th->running, 1, __ATOMIC_RELEASE);
        syscall(SYS_futex, &th->running, FUTEX_WAKE);
        struct timespec ts;
        ts.tv_sec = 0;
        ts.tv_nsec = 20 * 1000 * 1000;
        syscall(SYS_futex, &th->running, FUTEX_WAIT, 1, &ts);
        if (running)
          usleep((call == num_calls - 1) ? 10000 : 1000);
        break;
      }
    }
  }
}

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};
unsigned long long procid;
void execute_call(int call)
{
  long res;
  switch (call) {
  case 0:
    *(uint32_t*)0x20000040 = 0;
    *(uint32_t*)0x20000044 = 0;
    *(uint32_t*)0x20000048 = 9;
    *(uint32_t*)0x2000004c = 3;
    *(uint32_t*)0x20000050 = 0;
    *(uint32_t*)0x20000054 = 0x8b0;
    *(uint8_t*)0x20000058 = 0;
    *(uint8_t*)0x20000059 = 0;
    *(uint8_t*)0x2000005a = 0;
    *(uint8_t*)0x2000005b = 0;
    *(uint8_t*)0x2000005c = 0;
    *(uint8_t*)0x2000005d = 0;
    *(uint8_t*)0x2000005e = 0;
    *(uint8_t*)0x2000005f = 0;
    *(uint8_t*)0x20000060 = 0;
    *(uint8_t*)0x20000061 = 0;
    *(uint8_t*)0x20000062 = 0;
    *(uint8_t*)0x20000063 = 0;
    *(uint8_t*)0x20000064 = 0;
    *(uint8_t*)0x20000065 = 0;
    *(uint8_t*)0x20000066 = 0;
    *(uint8_t*)0x20000067 = 0;
    *(uint8_t*)0x20000068 = 0;
    *(uint8_t*)0x20000069 = 0;
    *(uint8_t*)0x2000006a = 0;
    *(uint8_t*)0x2000006b = 0;
    *(uint8_t*)0x2000006c = 0;
    *(uint8_t*)0x2000006d = 0;
    *(uint8_t*)0x2000006e = 0;
    *(uint8_t*)0x2000006f = 0;
    *(uint8_t*)0x20000070 = 0;
    *(uint8_t*)0x20000071 = 0;
    *(uint8_t*)0x20000072 = 0;
    *(uint8_t*)0x20000073 = 0;
    *(uint8_t*)0x20000074 = 0;
    *(uint8_t*)0x20000075 = 0;
    *(uint8_t*)0x20000076 = 0;
    *(uint8_t*)0x20000077 = 0;
    *(uint8_t*)0x20000078 = 0;
    *(uint8_t*)0x20000079 = 0;
    *(uint8_t*)0x2000007a = 0;
    *(uint8_t*)0x2000007b = 0;
    *(uint8_t*)0x2000007c = 0;
    *(uint8_t*)0x2000007d = 0;
    *(uint8_t*)0x2000007e = 0;
    *(uint8_t*)0x2000007f = 0;
    *(uint8_t*)0x20000080 = 0;
    *(uint8_t*)0x20000081 = 0;
    *(uint8_t*)0x20000082 = 0;
    *(uint8_t*)0x20000083 = 0;
    *(uint8_t*)0x20000084 = 0;
    *(uint8_t*)0x20000085 = 0;
    *(uint8_t*)0x20000086 = 0;
    *(uint8_t*)0x20000087 = 0;
    *(uint8_t*)0x20000088 = 0;
    *(uint8_t*)0x20000089 = 0;
    *(uint8_t*)0x2000008a = 0;
    *(uint8_t*)0x2000008b = 0;
    *(uint8_t*)0x2000008c = 0;
    *(uint8_t*)0x2000008d = 0;
    *(uint8_t*)0x2000008e = 0;
    *(uint8_t*)0x2000008f = 0;
    *(uint8_t*)0x20000090 = 0;
    *(uint8_t*)0x20000091 = 0;
    *(uint8_t*)0x20000092 = 0;
    *(uint8_t*)0x20000093 = 0;
    *(uint8_t*)0x20000094 = 0;
    *(uint8_t*)0x20000095 = 0;
    *(uint8_t*)0x20000096 = 0;
    *(uint8_t*)0x20000097 = 0;
    syscall(__NR_ioctl, -1, 0xc058534b, 0x20000040);
    break;
  case 1:
    res = syscall(__NR_socketpair, 0x1a, 0x340b17e3f6a37608, 4, 0x20000100);
    if (res != -1) {
      r[0] = *(uint32_t*)0x20000100;
      r[1] = *(uint32_t*)0x20000104;
    }
    break;
  case 2:
    syscall(__NR_ioctl, r[0], 0x4b2f, 0x22);
    break;
  case 3:
    *(uint32_t*)0x20000240 = 8;
    *(uint32_t*)0x20000244 = 3;
    *(uint32_t*)0x20000248 = 6;
    *(uint32_t*)0x2000024c = 0;
    *(uint8_t*)0x20000250 = 0;
    *(uint8_t*)0x20000251 = 0;
    *(uint8_t*)0x20000252 = 0;
    *(uint8_t*)0x20000253 = 0;
    *(uint8_t*)0x20000254 = 0;
    *(uint8_t*)0x20000255 = 0;
    *(uint8_t*)0x20000256 = 0;
    *(uint8_t*)0x20000257 = 0;
    *(uint8_t*)0x20000258 = 0;
    *(uint8_t*)0x20000259 = 0;
    *(uint8_t*)0x2000025a = 0;
    *(uint8_t*)0x2000025b = 0;
    *(uint8_t*)0x2000025c = 0;
    *(uint8_t*)0x2000025d = 0;
    *(uint8_t*)0x2000025e = 0;
    *(uint8_t*)0x2000025f = 0;
    *(uint8_t*)0x20000260 = 0;
    *(uint8_t*)0x20000261 = 0;
    *(uint8_t*)0x20000262 = 0;
    *(uint8_t*)0x20000263 = 0;
    *(uint8_t*)0x20000264 = 0;
    *(uint8_t*)0x20000265 = 0;
    *(uint8_t*)0x20000266 = 0;
    *(uint8_t*)0x20000267 = 0;
    *(uint8_t*)0x20000268 = 0;
    *(uint8_t*)0x20000269 = 0;
    *(uint8_t*)0x2000026a = 0;
    *(uint8_t*)0x2000026b = 0;
    *(uint8_t*)0x2000026c = 0;
    *(uint8_t*)0x2000026d = 0;
    *(uint8_t*)0x2000026e = 0;
    *(uint8_t*)0x2000026f = 0;
    *(uint8_t*)0x20000270 = 0;
    *(uint8_t*)0x20000271 = 0;
    *(uint8_t*)0x20000272 = 0;
    *(uint8_t*)0x20000273 = 0;
    *(uint8_t*)0x20000274 = 0;
    *(uint8_t*)0x20000275 = 0;
    *(uint8_t*)0x20000276 = 0;
    *(uint8_t*)0x20000277 = 0;
    *(uint8_t*)0x20000278 = 0;
    *(uint8_t*)0x20000279 = 0;
    *(uint8_t*)0x2000027a = 0;
    *(uint8_t*)0x2000027b = 0;
    *(uint8_t*)0x2000027c = 0;
    *(uint8_t*)0x2000027d = 0;
    *(uint8_t*)0x2000027e = 0;
    *(uint8_t*)0x2000027f = 0;
    *(uint8_t*)0x20000280 = 0;
    *(uint8_t*)0x20000281 = 0;
    *(uint8_t*)0x20000282 = 0;
    *(uint8_t*)0x20000283 = 0;
    *(uint8_t*)0x20000284 = 0;
    *(uint8_t*)0x20000285 = 0;
    *(uint8_t*)0x20000286 = 0;
    *(uint8_t*)0x20000287 = 0;
    *(uint8_t*)0x20000288 = 0;
    *(uint8_t*)0x20000289 = 0;
    *(uint8_t*)0x2000028a = 0;
    *(uint8_t*)0x2000028b = 0;
    *(uint8_t*)0x2000028c = 0;
    *(uint8_t*)0x2000028d = 0;
    *(uint8_t*)0x2000028e = 0;
    *(uint8_t*)0x2000028f = 0;
    *(uint8_t*)0x20000290 = 0;
    *(uint8_t*)0x20000291 = 0;
    *(uint8_t*)0x20000292 = 0;
    *(uint8_t*)0x20000293 = 0;
    *(uint8_t*)0x20000294 = 0;
    *(uint8_t*)0x20000295 = 0;
    *(uint8_t*)0x20000296 = 0;
    *(uint8_t*)0x20000297 = 0;
    *(uint8_t*)0x20000298 = 0;
    *(uint8_t*)0x20000299 = 0;
    *(uint8_t*)0x2000029a = 0;
    *(uint8_t*)0x2000029b = 0;
    *(uint8_t*)0x2000029c = 0;
    *(uint8_t*)0x2000029d = 0;
    *(uint8_t*)0x2000029e = 0;
    *(uint8_t*)0x2000029f = 0;
    *(uint8_t*)0x200002a0 = 0;
    *(uint8_t*)0x200002a1 = 0;
    *(uint8_t*)0x200002a2 = 0;
    *(uint8_t*)0x200002a3 = 0;
    *(uint8_t*)0x200002a4 = 0;
    *(uint8_t*)0x200002a5 = 0;
    *(uint8_t*)0x200002a6 = 0;
    *(uint8_t*)0x200002a7 = 0;
    *(uint8_t*)0x200002a8 = 0;
    *(uint8_t*)0x200002a9 = 0;
    *(uint8_t*)0x200002aa = 0;
    *(uint8_t*)0x200002ab = 0;
    *(uint8_t*)0x200002ac = 0;
    *(uint8_t*)0x200002ad = 0;
    *(uint8_t*)0x200002ae = 0;
    *(uint8_t*)0x200002af = 0;
    *(uint8_t*)0x200002b0 = 0;
    *(uint8_t*)0x200002b1 = 0;
    *(uint8_t*)0x200002b2 = 0;
    *(uint8_t*)0x200002b3 = 0;
    *(uint8_t*)0x200002b4 = 0;
    *(uint8_t*)0x200002b5 = 0;
    *(uint8_t*)0x200002b6 = 0;
    *(uint8_t*)0x200002b7 = 0;
    *(uint8_t*)0x200002b8 = 0;
    *(uint8_t*)0x200002b9 = 0;
    *(uint8_t*)0x200002ba = 0;
    *(uint8_t*)0x200002bb = 0;
    *(uint8_t*)0x200002bc = 0;
    *(uint8_t*)0x200002bd = 0;
    *(uint8_t*)0x200002be = 0;
    *(uint8_t*)0x200002bf = 0;
    *(uint8_t*)0x200002c0 = 0;
    *(uint8_t*)0x200002c1 = 0;
    *(uint8_t*)0x200002c2 = 0;
    *(uint8_t*)0x200002c3 = 0;
    *(uint8_t*)0x200002c4 = 0;
    *(uint8_t*)0x200002c5 = 0;
    *(uint8_t*)0x200002c6 = 0;
    *(uint8_t*)0x200002c7 = 0;
    *(uint8_t*)0x200002c8 = 0;
    *(uint8_t*)0x200002c9 = 0;
    *(uint8_t*)0x200002ca = 0;
    *(uint8_t*)0x200002cb = 0;
    *(uint8_t*)0x200002cc = 0;
    *(uint8_t*)0x200002cd = 0;
    *(uint8_t*)0x200002ce = 0;
    *(uint8_t*)0x200002cf = 0;
    *(uint8_t*)0x200002d0 = 0;
    *(uint8_t*)0x200002d1 = 0;
    *(uint8_t*)0x200002d2 = 0;
    *(uint8_t*)0x200002d3 = 0;
    *(uint8_t*)0x200002d4 = 0;
    *(uint8_t*)0x200002d5 = 0;
    *(uint8_t*)0x200002d6 = 0;
    *(uint8_t*)0x200002d7 = 0;
    *(uint8_t*)0x200002d8 = 0;
    *(uint8_t*)0x200002d9 = 0;
    *(uint8_t*)0x200002da = 0;
    *(uint8_t*)0x200002db = 0;
    *(uint8_t*)0x200002dc = 0;
    *(uint8_t*)0x200002dd = 0;
    *(uint8_t*)0x200002de = 0;
    *(uint8_t*)0x200002df = 0;
    *(uint8_t*)0x200002e0 = 0;
    *(uint8_t*)0x200002e1 = 0;
    *(uint8_t*)0x200002e2 = 0;
    *(uint8_t*)0x200002e3 = 0;
    *(uint8_t*)0x200002e4 = 0;
    *(uint8_t*)0x200002e5 = 0;
    *(uint8_t*)0x200002e6 = 0;
    *(uint8_t*)0x200002e7 = 0;
    *(uint8_t*)0x200002e8 = 0;
    *(uint8_t*)0x200002e9 = 0;
    *(uint8_t*)0x200002ea = 0;
    *(uint8_t*)0x200002eb = 0;
    *(uint8_t*)0x200002ec = 0;
    *(uint8_t*)0x200002ed = 0;
    *(uint8_t*)0x200002ee = 0;
    *(uint8_t*)0x200002ef = 0;
    *(uint8_t*)0x200002f0 = 0;
    *(uint8_t*)0x200002f1 = 0;
    *(uint8_t*)0x200002f2 = 0;
    *(uint8_t*)0x200002f3 = 0;
    *(uint8_t*)0x200002f4 = 0;
    *(uint8_t*)0x200002f5 = 0;
    *(uint8_t*)0x200002f6 = 0;
    *(uint8_t*)0x200002f7 = 0;
    *(uint8_t*)0x200002f8 = 0;
    *(uint8_t*)0x200002f9 = 0;
    *(uint8_t*)0x200002fa = 0;
    *(uint8_t*)0x200002fb = 0;
    *(uint8_t*)0x200002fc = 0;
    *(uint8_t*)0x200002fd = 0;
    *(uint8_t*)0x200002fe = 0;
    *(uint8_t*)0x200002ff = 0;
    *(uint32_t*)0x20000300 = 0;
    *(uint32_t*)0x20000304 = 0xfff;
    *(uint32_t*)0x20000308 = 2;
    *(uint32_t*)0x2000030c = 0xfffffffc;
    memcpy((void*)0x20000310,
           "\xbe\xc5\x87\x8b\xe4\xf4\x4c\xb2\x8e\x46\xf7\x9b\x7c\xd0\xf6\x55",
           16);
    *(uint8_t*)0x20000320 = 0;
    *(uint8_t*)0x20000321 = 0;
    *(uint8_t*)0x20000322 = 0;
    *(uint8_t*)0x20000323 = 0;
    *(uint8_t*)0x20000324 = 0;
    *(uint8_t*)0x20000325 = 0;
    *(uint8_t*)0x20000326 = 0;
    *(uint8_t*)0x20000327 = 0;
    *(uint8_t*)0x20000328 = 0;
    *(uint8_t*)0x20000329 = 0;
    *(uint8_t*)0x2000032a = 0;
    *(uint8_t*)0x2000032b = 0;
    *(uint8_t*)0x2000032c = 0;
    *(uint8_t*)0x2000032d = 0;
    *(uint8_t*)0x2000032e = 0;
    *(uint8_t*)0x2000032f = 0;
    *(uint8_t*)0x20000330 = 0;
    *(uint8_t*)0x20000331 = 0;
    *(uint8_t*)0x20000332 = 0;
    *(uint8_t*)0x20000333 = 0;
    *(uint8_t*)0x20000334 = 0;
    *(uint8_t*)0x20000335 = 0;
    *(uint8_t*)0x20000336 = 0;
    *(uint8_t*)0x20000337 = 0;
    *(uint8_t*)0x20000338 = 0;
    *(uint8_t*)0x20000339 = 0;
    *(uint8_t*)0x2000033a = 0;
    *(uint8_t*)0x2000033b = 0;
    *(uint8_t*)0x2000033c = 0;
    *(uint8_t*)0x2000033d = 0;
    *(uint8_t*)0x2000033e = 0;
    *(uint8_t*)0x2000033f = 0;
    *(uint8_t*)0x20000340 = 0;
    *(uint8_t*)0x20000341 = 0;
    *(uint8_t*)0x20000342 = 0;
    *(uint8_t*)0x20000343 = 0;
    *(uint8_t*)0x20000344 = 0;
    *(uint8_t*)0x20000345 = 0;
    *(uint8_t*)0x20000346 = 0;
    *(uint8_t*)0x20000347 = 0;
    *(uint8_t*)0x20000348 = 0;
    *(uint8_t*)0x20000349 = 0;
    *(uint8_t*)0x2000034a = 0;
    *(uint8_t*)0x2000034b = 0;
    *(uint8_t*)0x2000034c = 0;
    *(uint8_t*)0x2000034d = 0;
    *(uint8_t*)0x2000034e = 0;
    *(uint8_t*)0x2000034f = 0;
    *(uint8_t*)0x20000350 = 0;
    *(uint8_t*)0x20000351 = 0;
    *(uint8_t*)0x20000352 = 0;
    *(uint8_t*)0x20000353 = 0;
    *(uint8_t*)0x20000354 = 0;
    *(uint8_t*)0x20000355 = 0;
    *(uint8_t*)0x20000356 = 0;
    *(uint8_t*)0x20000357 = 0;
    *(uint8_t*)0x20000358 = 0;
    *(uint8_t*)0x20000359 = 0;
    *(uint8_t*)0x2000035a = 0;
    *(uint8_t*)0x2000035b = 0;
    *(uint8_t*)0x2000035c = 0;
    *(uint8_t*)0x2000035d = 0;
    *(uint8_t*)0x2000035e = 0;
    *(uint8_t*)0x2000035f = 0;
    syscall(__NR_ioctl, r[1], 0xc1205531, 0x20000240);
    break;
  case 4:
    memcpy((void*)0x20000000, "/dev/loop-control", 18);
    syscall(__NR_openat, 0xffffffffffffff9c, 0x20000000, 0, 0);
    break;
  }
}

void execute_one()
{
  execute(5);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  for (procid = 0; procid < 8; procid++) {
    if (fork() == 0) {
      for (;;) {
        loop();
      }
    }
  }
  sleep(1000000);
  return 0;
}