// https://syzkaller.appspot.com/bug?id=de23f6e644d3432614a9ee76939949c960abea97
// 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();
      int fd;
      for (fd = 3; fd < 30; fd++)
        close(fd);
      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 < 5 * 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 int collide;

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);
        if (collide && call % 2)
          break;
        struct timespec ts;
        ts.tv_sec = 0;
        ts.tv_nsec = 20 * 1000 * 1000;
        syscall(SYS_futex, &th->running, FUTEX_WAIT, 1, &ts);
        if (__atomic_load_n(&running, __ATOMIC_RELAXED))
          usleep((call == num_calls - 1) ? 10000 : 1000);
        break;
      }
    }
  }
}

uint64_t r[8] = {0xffffffffffffffff,
                 0x0,
                 0x0,
                 0xffffffffffffffff,
                 0x0,
                 0xffffffffffffffff,
                 0x0,
                 0xffffffffffffffff};
void execute_call(int call)
{
  long res;
  switch (call) {
  case 0:
    res = syscall(__NR_inotify_init);
    if (res != -1)
      r[0] = res;
    break;
  case 1:
    res = syscall(__NR_fstat, 0xffffff9c, 0x20000000);
    if (res != -1)
      r[1] = *(uint32_t*)0x2000000c;
    break;
  case 2:
    *(uint32_t*)0x200000c0 = 0xc;
    res = syscall(__NR_getsockopt, -1, 1, 0x11, 0x20000080, 0x200000c0);
    if (res != -1)
      r[2] = *(uint32_t*)0x20000088;
    break;
  case 3:
    syscall(__NR_fchown, r[0], r[1], r[2]);
    break;
  case 4:
    *(uint64_t*)0x20000100 = 0;
    *(uint64_t*)0x20000108 = 0;
    syscall(__NR_nanosleep, 0x20000100, 0x20000140);
    break;
  case 5:
    res = syscall(__NR_socket, 2, 2, 0);
    if (res != -1)
      r[3] = res;
    break;
  case 6:
    *(uint32_t*)0x20000180 = 1;
    syscall(__NR_ioctl, r[3], 0x894c, 0x20000180);
    break;
  case 7:
    memcpy((void*)0x200001c0, "pkcs7_test", 11);
    *(uint8_t*)0x20000200 = 0x73;
    *(uint8_t*)0x20000201 = 0x79;
    *(uint8_t*)0x20000202 = 0x7a;
    *(uint8_t*)0x20000203 = 0x20;
    *(uint8_t*)0x20000204 = 0;
    res = syscall(__NR_add_key, 0x200001c0, 0x20000200, 0x20000240, 0,
                  0xfffffff8);
    if (res != -1)
      r[4] = res;
    break;
  case 8:
    syscall(__NR_keyctl, 5, r[4], 0x8200a00);
    break;
  case 9:
    res = syscall(__NR_dup2, r[0], r[0]);
    if (res != -1)
      r[5] = res;
    break;
  case 10:
    syscall(__NR_ioctl, r[5], 0x894b, 0x20000280);
    break;
  case 11:
    memcpy((void*)0x200002c0, "\x6e\x61\x74\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                              "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                              "\x00\x00\x00\x00\x00\x00\x00\x00",
           32);
    *(uint32_t*)0x200002e0 = 0;
    *(uint32_t*)0x200002e4 = 0;
    *(uint32_t*)0x200002e8 = 0;
    *(uint64_t*)0x200002f0 = 0;
    *(uint64_t*)0x200002f8 = 0;
    *(uint64_t*)0x20000300 = 0;
    *(uint64_t*)0x20000308 = 0;
    *(uint64_t*)0x20000310 = 0;
    *(uint64_t*)0x20000318 = 0;
    *(uint32_t*)0x20000320 = 0;
    *(uint64_t*)0x20000328 = 0;
    *(uint64_t*)0x20000330 = 0;
    *(uint32_t*)0x20000340 = 0x78;
    syscall(__NR_getsockopt, r[3], 0, 0x80, 0x200002c0, 0x20000340);
    break;
  case 12:
    memcpy((void*)0x20000380, "\x62\x72\x6f\x75\x74\x65\x00\x00\x00\x00\x00\x00"
                              "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
                              "\x00\x00\x00\x00\x00\x00\x00\x00",
           32);
    *(uint32_t*)0x200003a0 = 0;
    *(uint32_t*)0x200003a4 = 0;
    *(uint32_t*)0x200003a8 = 0;
    *(uint64_t*)0x200003b0 = 0;
    *(uint64_t*)0x200003b8 = 0;
    *(uint64_t*)0x200003c0 = 0;
    *(uint64_t*)0x200003c8 = 0;
    *(uint64_t*)0x200003d0 = 0;
    *(uint64_t*)0x200003d8 = 0;
    *(uint32_t*)0x200003e0 = 0;
    *(uint64_t*)0x200003e8 = 0;
    *(uint64_t*)0x200003f0 = 0;
    *(uint32_t*)0x20000400 = 0x78;
    syscall(__NR_getsockopt, r[3], 0, 0x80, 0x20000380, 0x20000400);
    break;
  case 13:
    syscall(__NR_fcntl, r[0], 2, 1);
    break;
  case 14:
    *(uint16_t*)0x20000440 = 0xa;
    *(uint16_t*)0x20000442 = htobe16(0x4e23);
    *(uint32_t*)0x20000444 = 0x99;
    *(uint64_t*)0x20000448 = htobe64(0);
    *(uint64_t*)0x20000450 = htobe64(1);
    *(uint32_t*)0x20000458 = 6;
    *(uint16_t*)0x200004c0 = 5;
    *(uint16_t*)0x200004c2 = 0xff;
    *(uint32_t*)0x200004c4 = 0;
    memcpy((void*)0x200004c8,
           "\x72\x4f\xde\x1b\xd5\xaf\x49\x05\x0b\xc9\x8a\xa5\x5d\x0c\xf6\x54"
           "\x19\xb7\x47\xa7\xbf\x6a\xaf\x6a\x84\x13\xe6\xae\xe9\x46\xd3\x96"
           "\x9f\xe7\x02\x3a\x86\x82\xba\x6c\x1d\x73\xa7\xdc\x49\x28\x2b\xc7"
           "\x43\x20\xb1\x8f\x45\x2f\xd4\xed\x65\x0c\x3c\xcb\x61\xc0\xa1\x90"
           "\x75\xe6\x76\x01\xb8\x47\xd2\xc1\xfd\x7d\x54\x73\xa0\x2a\xb1\x04",
           80);
    syscall(__NR_setsockopt, r[5], 6, 0xe, 0x20000440, 0xd8);
    break;
  case 15:
    syscall(__NR_ioctl, r[5], 0x5413, 0x20000540);
    break;
  case 16:
    memcpy((void*)0x20000580, "trusted.", 8);
    memcpy((void*)0x20000588, "{em0.]ppp0wlan0", 16);
    memcpy((void*)0x200005c0, "broute", 7);
    syscall(__NR_fsetxattr, r[5], 0x20000580, 0x200005c0, 7, 1);
    break;
  case 17:
    res = syscall(__NR_shmget, 0x798dd815, 0x3000, 0x54000004, 0x20ffa000);
    if (res != -1)
      r[6] = res;
    break;
  case 18:
    syscall(__NR_shmctl, r[6], 0xe, 0x20000600);
    break;
  case 19:
    memcpy((void*)0x20000640, "./file0", 8);
    *(uint64_t*)0x20000680 = 4;
    *(uint64_t*)0x20000688 = 0xc84;
    syscall(__NR_utime, 0x20000640, 0x20000680);
    break;
  case 20:
    memcpy((void*)0x200006c0,
           "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
           16);
    *(uint16_t*)0x200006d0 = 2;
    *(uint16_t*)0x200006d2 = htobe16(0x4e20);
    *(uint32_t*)0x200006d4 = htobe32(0xe0000002);
    *(uint8_t*)0x200006d8 = 0;
    *(uint8_t*)0x200006d9 = 0;
    *(uint8_t*)0x200006da = 0;
    *(uint8_t*)0x200006db = 0;
    *(uint8_t*)0x200006dc = 0;
    *(uint8_t*)0x200006dd = 0;
    *(uint8_t*)0x200006de = 0;
    *(uint8_t*)0x200006df = 0;
    syscall(__NR_ioctl, r[5], 0x8917, 0x200006c0);
    break;
  case 21:
    syscall(__NR_keyctl, 0x13, r[4], 0x7fff, 0x80, r[4]);
    break;
  case 22:
    syscall(__NR_socket, 2, 2, 1);
    break;
  case 23:
    memcpy((void*)0x20000780, "/dev/ptmx", 10);
    res = syscall(__NR_openat, 0xffffffffffffff9c, 0x20000780, 0x101000, 0);
    if (res != -1)
      r[7] = res;
    break;
  case 24:
    syscall(__NR_read, r[7], 0x200007c0, 0xa7);
    break;
  }
}

void execute_one()
{
  execute(25);
  collide = 1;
  execute(25);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  for (;;) {
    loop();
  }
}