// https://syzkaller.appspot.com/bug?id=b2111cea752e77d998c84b08e90ebb09f8150ed8
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdio.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/stat.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 <stdint.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);
}

#define BITMASK_LEN(type, bf_len) (type)((1ull << (bf_len)) - 1)

#define BITMASK_LEN_OFF(type, bf_off, bf_len)                                  \
  (type)(BITMASK_LEN(type, (bf_len)) << (bf_off))

#define STORE_BY_BITMASK(type, addr, val, bf_off, bf_len)                      \
  if ((bf_off) == 0 && (bf_len) == 0) {                                        \
    *(type*)(addr) = (type)(val);                                              \
  } else {                                                                     \
    type new_val = *(type*)(addr);                                             \
    new_val &= ~BITMASK_LEN_OFF(type, (bf_off), (bf_len));                     \
    new_val |= ((type)(val)&BITMASK_LEN(type, (bf_len))) << (bf_off);          \
    *(type*)(addr) = new_val;                                                  \
  }

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 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()
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      fail("loop fork failed");
    if (pid == 0) {
      prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
      setpgrp();
      test();
      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) {
        kill(-pid, SIGKILL);
        kill(pid, SIGKILL);
        while (waitpid(-1, &status, __WALL) != pid) {
        }
        break;
      }
    }
  }
}

long r[1];
uint64_t procid;
void test()
{
  memset(r, -1, sizeof(r));
  syscall(__NR_mmap, 0x20000000, 0xfff000, 3, 0x32, -1, 0);
  *(uint32_t*)0x2025c000 = 2;
  *(uint32_t*)0x2025c004 = 0x78;
  *(uint8_t*)0x2025c008 = 0xe2;
  *(uint8_t*)0x2025c009 = 0;
  *(uint8_t*)0x2025c00a = 0;
  *(uint8_t*)0x2025c00b = 0;
  *(uint32_t*)0x2025c00c = 0;
  *(uint64_t*)0x2025c010 = 0;
  *(uint64_t*)0x2025c018 = 0;
  *(uint64_t*)0x2025c020 = 0;
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 0, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 1, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 2, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 3, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 4, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 1, 5, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 6, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 7, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 8, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 9, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 10, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 11, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 12, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 13, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 14, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 15, 2);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 17, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 18, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 19, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 20, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 21, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 22, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 23, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 24, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 25, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 26, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 27, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 28, 1);
  STORE_BY_BITMASK(uint64_t, 0x2025c028, 0, 29, 35);
  *(uint32_t*)0x2025c030 = 0;
  *(uint32_t*)0x2025c034 = 0;
  *(uint64_t*)0x2025c038 = 0x20000000;
  *(uint64_t*)0x2025c040 = 0;
  *(uint64_t*)0x2025c048 = 0;
  *(uint64_t*)0x2025c050 = 0;
  *(uint64_t*)0x2025c058 = 0;
  *(uint32_t*)0x2025c060 = 0;
  *(uint64_t*)0x2025c068 = 0;
  *(uint32_t*)0x2025c070 = 0;
  *(uint16_t*)0x2025c074 = 0;
  *(uint16_t*)0x2025c076 = 0;
  syscall(__NR_perf_event_open, 0x2025c000, 0, -1, -1, 0);
  memcpy((void*)0x20001000, "/dev/binder#", 13);
  r[0] = syz_open_dev(0x20001000, 0 + procid * 1, 0);
  *(uint64_t*)0x20008fd0 = 4;
  *(uint64_t*)0x20008fd8 = 0;
  *(uint64_t*)0x20008fe0 = 0x2000a000;
  *(uint64_t*)0x20008fe8 = 1;
  *(uint64_t*)0x20008ff0 = 0xfffffffe;
  *(uint64_t*)0x20008ff8 = 0x2000affc;
  *(uint32_t*)0x2000a000 = 0x630b;
  memcpy((void*)0x2000affc, "\xd8", 1);
  syscall(__NR_ioctl, r[0], 0xc0306201, 0x20008fd0);
}

int main()
{
  for (procid = 0; procid < 8; procid++) {
    if (fork() == 0) {
      for (;;) {
        loop();
      }
    }
  }
  sleep(1000000);
  return 0;
}