// https://syzkaller.appspot.com/bug?id=7b273dd7eb5ec99a0f9a1376be676b4747648d56
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

static unsigned long long procid;

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 bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);
  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

static long syz_open_dev(volatile long a0, volatile long a1, volatile long 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) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 0);
  }
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  int i;
  for (i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

static void loop(void)
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      setup_test();
      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 < 5 * 1000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syz_open_dev(0xc, 4, 1);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x20000000 = 0;
  *(uint16_t*)0x20000002 = 0;
  *(uint16_t*)0x20000004 = 0;
  *(uint16_t*)0x20000006 = 0;
  *(uint16_t*)0x20000008 = 4;
  *(uint16_t*)0x2000000a = 4;
  syscall(__NR_ioctl, r[0], 0x560a, 0x20000000ul);
  memcpy((void*)0x20000180, "/dev/fb0\000", 9);
  res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000180ul, 0ul, 0ul);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000008 = 0x18b;
  *(uint32_t*)0x2000000c = 0x360;
  *(uint32_t*)0x20000010 = 0;
  *(uint32_t*)0x20000014 = 0;
  *(uint32_t*)0x20000018 = 4;
  *(uint32_t*)0x2000001c = 0;
  *(uint32_t*)0x20000020 = 0;
  *(uint32_t*)0x20000024 = 0;
  *(uint32_t*)0x20000028 = 0;
  *(uint32_t*)0x2000002c = 0;
  *(uint32_t*)0x20000030 = 0;
  *(uint32_t*)0x20000034 = 0;
  *(uint32_t*)0x20000038 = 0;
  *(uint32_t*)0x2000003c = 0;
  *(uint32_t*)0x20000040 = 0;
  *(uint32_t*)0x20000044 = 0;
  *(uint32_t*)0x20000048 = 0;
  *(uint32_t*)0x2000004c = 0;
  *(uint32_t*)0x20000050 = 5;
  *(uint32_t*)0x20000054 = 0;
  *(uint32_t*)0x20000058 = 0;
  *(uint32_t*)0x2000005c = 0;
  *(uint32_t*)0x20000060 = 0;
  *(uint32_t*)0x20000064 = 0;
  *(uint32_t*)0x20000068 = 0;
  *(uint32_t*)0x2000006c = 0;
  *(uint32_t*)0x20000070 = 0;
  *(uint32_t*)0x20000074 = 0;
  *(uint32_t*)0x20000078 = 0;
  *(uint32_t*)0x2000007c = 0;
  *(uint32_t*)0x20000080 = 0;
  *(uint32_t*)0x20000084 = 0;
  *(uint32_t*)0x20000088 = 0;
  *(uint32_t*)0x2000008c = 0;
  *(uint32_t*)0x20000090 = 0;
  *(uint32_t*)0x20000094 = 0;
  *(uint32_t*)0x20000098 = 0;
  *(uint32_t*)0x2000009c = 0;
  syscall(__NR_ioctl, r[1], 0x4601, 0x20000000ul);
  res = syz_open_dev(0xc, 4, 1);
  if (res != -1)
    r[2] = res;
  res = syscall(__NR_dup, r[2]);
  if (res != -1)
    r[3] = res;
  *(uint32_t*)0x20000000 = 8;
  memcpy(
      (void*)0x20000004,
      "\x11\x77\x9b\x3f\xaf\x89\x5c\x10\x37\xa4\x07\x3c\xc2\x6a\xa1\xab\x8c\xc0"
      "\x0f\x07\x0f\xdc\xb1\x70\x86\x5d\x56\xe0\x9f\xd0\x78\xd0\xb8\x16\x80\xc0"
      "\xa6\xf4\xfe\x0d\xd9\xa8\x9e\x9b\x5e\x87\xaf\x36\x90\x01\x87\x23\x99\x4c"
      "\x47\xeb\x83\x09\x56\xb0\x05\xb2\x0a\x66\x0e\x49\x8a\x36\x81\xe3\x7e\x7c"
      "\x81\x94\xe5\xec\x02\x34\x41\xfd\xd9\x63\x14\xa8\x78\xad\x46\x08\xf1\x9c"
      "\x0a\xce\xc1\x45\xd3\x32\x20\x9d\xce\x27\xd4\x6a\x53\xfe\x2d\x0b\x39\xbc"
      "\x3a\x4c\x93\x10\x0d\x54\xe6\x63\x63\x9b\x38\x13\xd8\x6f\x17\x8c\x70\x01"
      "\x3b\xee\xe0\xbc\x31\xaa\x07\x61\xbe\xa5\x2e\x10\x8a\x90\xac\x8a\x5c\x07"
      "\x32\x1c\x98\xa9\x61\xd6\x20\x9c\xea\x61\x0e\x37\x77\x4f\x5e\xc2\x0f\xd3"
      "\x33\x7d\x6b\xb0\x14\xaa\xc6\x97\x14\x82\x75\x36\xb8\x6f\x82\x31\x51\x3b"
      "\x40\xde\x92\x56\x8e\xa8\x54\x72\xbb\xca\x1e\xb1\xd0\x33\xdd\x12\x23\xa3"
      "\xc2\xe2\x6d\xc6\x29\xbf\x8f\x3b\x2d\xbb\x68\xe7\x8a\x84\x6d\x75\x59\x69"
      "\xdd\xdf\x7b\x85\x35\x3f\x3f\x0a\xb6\x6b\x1b\xd6\xd3\x3d\x04\x46\xe4\xd3"
      "\xbd\xb6\xda\x07\xa6\x88\x16\x02\x29\x55\xe4\x15\x9d\x17\x2b\x54\xd5\x79"
      "\x59\xcd\x99\x3f\xcf\x30\x9a\x2d\x36\xa1\xea\x97\x08\x13\x78\x63\x84\x54"
      "\x5f\x36\x17\xd4\x46\x10\x5a\x82\x64\x9a\xa3\xe4\xd6\xc0\x7f\x86\x2a\x3c"
      "\x8b\xe9\x33\xc9\x82\x6c\x13\xf4\xf5\xea\x4a\x38\x16\x39\xc3\x37\x65\xe5"
      "\xe4\x74\x4e\x89\x4d\x2f\xec\x10\x14\xc0\x91\x6d\xa5\xa6\x8b\x6e\x14\x66"
      "\x59\xb5\x4d\xc9\xe6\x12\xbe\x27\x6b\xe6\xb4\x1f\x19\xed\x42\x1e\xeb\x09"
      "\x4e\x9d\x1b\x8b\x24\x80\x42\xef\x0e\x01\x5a\x8d\x64\x36\x60\x9c\x67\xb4"
      "\xd4\xde\xe7\x6d\xba\x8a\x39\x48\xef\xa6\x6a\x6a\xf6\xe3\x1b\x63\x96\x25"
      "\xc3\x65\xc5\x25\x18\x39\x16\x89\x2b\x3c\x5f\x11\x1c\x9b\x02\x25\x26\x29"
      "\x66\x25\xad\x67\x6a\xf8\xed\xfb\xd2\x40\xa2\xc1\xbc\x97\x76\x58\x7c\x66"
      "\x00\xd5\xfb\xcc\x59\x94\x6a\xfa\xa7\x15\xc3\x98\xac\x4f\xcf\xc5\x8e\xe0"
      "\x26\x14\x0a\x30\xe8\xf8\x37\x03\xe9\xde\x5d\xec\x75\xae\x78\x45\xcf\x9c"
      "\xfe\x56\xb6\xbd\xd5\x15\xd7\x5b\xfc\xd9\xda\x36\xf3\x43\x39\x6d\x48\x79"
      "\x3e\xd1\x89\xff\x09\x6b\x48\xd7\x66\xd4\x84\xe5\xca\x5a\xd8\xa7\x67\xc4"
      "\x8c\xe1\xeb\x64\x28\x63\x38\x21\x3c\x30\xde\xe1\x27\x31\xf4\x47\x07\x42"
      "\x7f\x1b\xe3\xbb\x1b\x92\xaf\x3a\x48\xca\xdb\x03\x57\xda\x62\x52\x97\x0c"
      "\xa5\x50\x41\x84\xed\x53\xbf\x11\x43\x31\xc2\x53\x4d\xf9\xf8\xb6\xd0\xb5"
      "\xd7\x0d\xde\x1a\x52\xff\x77\xa9\x76\x03\x72\x25\x1e\xd2\x0e\x57\xe7\xaa"
      "\xc3\x67\x1d\xaa\xa7\x2b\x42\xfc\x2c\x6a\x5d\x9c\x3a\x2b\xa3\x12\x4d\x45"
      "\xea\xf6\x11\xd9\x8b\x6c\x2a\x06\xc6\xb2\x4e\x91\xa5\x1c\x4d\x2d\xf3\xc9"
      "\x94\xba\x8f\xd8\xf6\xae\xe1\x6d\x73\x7d\x17\xc0\x4d\xc6\x96\x09\x2d\xf2"
      "\xa7\x47\x19\x85\x42\x22\xc7\xe6\xeb\xe4\x9b\x9a\xc2\x69\x94\x73\x12\x11"
      "\x0c\xed\x11\x2b\xbf\x87\x3d\x33\x5b\xf2\x5e\x6f\x66\x10\x5e\xf4\xf0\xf4"
      "\x0c\x35\xc1\x21\xec\x74\x5b\xa9\x3b\x9d\xad\xc4\x89\xa7\xfd\xa0\xeb\x59"
      "\xd6\x2c\xdc\x71\x8c\xbb\xb1\xf4\x2f\x6e\xde\x50\xbd\x24\x55\xa2\x83\x78"
      "\x8d\xbd\x64\xda\x39\x10\x75\xd2\x41\xb1\x03\x99\xb2\xce\x67\x6d\x95\xa2"
      "\xf8\xaf\x7d\xf5\x3c\xde\x9b\x3c\xf6\x65\x0e\x23\x9a\x98\x39\x09\xbf\x86"
      "\x9a\xb5\x00\x62\xf2\xef\xd1\xae\x84\xef\xe7\x6c\xda\x15\x25\xd4\xff\x6a"
      "\x17\x50\xdb\xfc\x77\xb7\x10\x93\xfb\xf4\x61\xc3\xdc\xb6\x01\x63\x03\x3a"
      "\x7e\x87\x60\x76\x43\xfa\x9b\xa0\xb2\x96\xe3\x4c\x04\x11\x5f\x93\xe2\x09"
      "\xf1\xcd\xda\x93\x9e\x58\xf2\xd4\x01\x32\x6b\x99\x06\x1c\xe1\xe9\x30\xf0"
      "\xfa\xeb\x7e\x60\x1b\x5f\x36\xbd\x87\x9d\x24\x66\xd4\x84\x35\xbb\xc0\x22"
      "\x75\x60\xf0\x04\xc9\x47\x02\xdc\x84\xe4\x1f\xcf\x6d\x50\x04\x9a\x58\x44"
      "\x97\x27\xb5\x79\xd2\x38\x81\x7b\x68\x46\x42\x11\x3d\x1a\x53\x15\x33\x49"
      "\x9b\x63\x47\x13\x4c\xf6\xee\x29\x83\x55\x5a\x9c\x2c\xa7\x5f\x3e\x5b\x1d"
      "\x5d\x8e\xf7\xcb\x5b\x7a\x6f\xff\xc2\x5a\xd0\xf8\xd1\x77\xf6\x65\x9a\xdc"
      "\x1a\x87\x74\x0b\xe2\xbc\x69\x18\xe3\x47\x6d\x15\x20\x26\x83\xf5\x32\x16"
      "\xe0\x25\x06\x02\xd7\x5c\x64\xd5\xc1\x00\x6b\xc0\xd7\x43\xe3\xb4\x9a\xab"
      "\x24\xdc\x05\x20\xf5\x52\x8e\x92\x1b\xe7\x17\x4f\x03\x06\x79\xd7\x71\xe3"
      "\xb2\xaa\x80\x42\x13\x91\x90\xa5\xa9\xf3\x13\x1a\x78\x2c\xee\xd8\xb0\x7a"
      "\x23\xc5\x67\x9b\xbf\xbe\x67\x9d\x46\xd5\x6e\xa8\x65\xd7\x77\x99\x3b\x21"
      "\xf8\xce\xeb\xe7\x55\xe8\x5f\x33\xc1\xb6\x9f\x8d\x8b\xd1\x89\x5f\xbd\x52"
      "\x42\xd5\x0f\xc5\xf2\x5f\x74\x0e\x8a\xd3\xd4\xab\x19\x4e\x92\x87\x7c\x90"
      "\xcd\xec\x66\xe9\x90\x7e\xbd\x33\x4e\x86\xec\x77\x5b\x62\x98\xd8\x82\x5b"
      "\xf7\x6e\x34\x26\x9c\x23\x0e\xef\x49\x6a\x66\x41\x76\x0a\x60\x0e\x41\x47"
      "\x8b\x1a\x0c\xdb\xab\x37\x80\x13\x07\x6a\x1a\xd1\xce\x6a\xf0\xbc\xd9\xb6"
      "\xfe\x08\x4b\xf7\xc4\x59\x97\x0e\xa3\x6f\x2a\xd0\x17\x62\x38\x5e\x83\x3f"
      "\x27\x08\xf9\xdb\x34\x74\xe9\x94\xa1\xdb\x83\xeb\xa9\xab\xb1\x58\xb4\x2d"
      "\xfd\x90\x65\xd4\x58\x93\x5b\xfa\x6a\x75\xc2\x70\x89\xc2\x2c\x21\xd6\x6e"
      "\xa8\xe2\x83\xe3\x2e\x23\x16\xa3\xd0\x51\x7b\x1b\x61\xff\xed\x6d\x2c\x4c"
      "\x92\x1b\x2f\xa1\xbf\xb9\x1f\xa9\x74\x68\xb5\x92\x0f\xa7\x05\xb0\x92\x49"
      "\x65\x11\x86\x90\x8b\xe7\x31\x00\x8f\x77\x70\xca\xf2\x30\x7c\x3e\xd0\x2b"
      "\x20\x75\x12\x0d\x8f\x64\x9e\x12\x87\x07\xe8\x0e\x46\x55\xb7\xe9\x1c\x6f"
      "\x20\xc4\xb1\xeb\x8f\x53\xb2\x9a\x6f\xdc\xc0\x0f\xb0\xab\x0a\x93\xde\x70"
      "\x85\x53\x51\x26\x27\x98\x02\x61\x57\x26\xaf\xd6\xe5\xba\x62\x91\xb2\x30"
      "\xfb\x77\x60\x0e\xaa\x02\x35\x81\x28\xfb\x10\x58\xe7\x7b\x95\x77\x03\x37"
      "\x21\x79\x55\x53\xc0\x4a\x57\xbb\xf9\xbd\x28\xb2\xab\xac\xc2\x4c\xf3\x76"
      "\xd4\x19\xfb\x7e\x72\xbd\x89\x7b\x07\x71\xae\x76\x2d\xaa\xd8\xf5\xc0\x1e"
      "\x42\x2d\x84\xfc\x5b\x44\x3a\x4d\xa2\x13\xd6\xd1\xfe\x79\x35\xbf\x3c\xd1"
      "\xe8\xf8\x2e\x39\x20\x37\xbf\x4e\xf1\x76\x5d\xde\x0d\x5e\xf0\xf4\xff\x9d"
      "\xec\xdd\x83\x82\x80\x1a\xff\x46\xd0\xba\x1c\xc6\xf1\xb4\x86\xcf\xcc\xe2"
      "\xac\xab\x65\x83\xf7\x33\x64\x9f\x6e\xbd\xe3\xa2\xd9\x42\x20\xf2\x5e\xb0"
      "\x16\x94\xd2\x22\xfd\x5b\x9f\x11\x2b\xeb\xf7\xa5\x15\x02\x72\x09\x21\xf4"
      "\x52\x4f\xcd\xb0\x27\x49\x20\x5c\xa5\xba\x8d\x4d\x7e\xb4\x3d\x63\x56\xca"
      "\x79\xc8\x42\xa9\x15\xef\x7d\x34\x3f\xf8\x8d\x01\x41\x76\x07\xe0\x60\x08"
      "\xcd\x62\x0a\x1a\xb8\x53\x08\x94\x3d\x55\x65\x34\x8a\x2a\xf2\x00\xac\xcf"
      "\xf7\x95\x25\xe9\xf6\xa5\x60\xf8\x38\x35\x9a\xe7\xbb\x08\xf2\xa8\xaa\x4e"
      "\x77\x51\xa7\x89\xbc\x55\x1e\xcd\x7e\xf1\x27\xba\x50\x83\x71\x8e\x68\x03"
      "\xdf\x0b\x98\xa4\x19\x0c\x87\xbb\xfb\x12\xd9\xcb\xf9\x1e\x9d\xa8\x77\x66"
      "\x0e\x4d\x6f\x48\xad\x22\x1e\xf9\x10\xf9\xc6\xf1\x03\xc9\x5e\x5a\xc6\x44"
      "\x4e\x1b\x48\xde\xbf\xce\x23\xca\x29\xb9\x76\x5b\x12\xf1\x7d\xed\x7d\x6d"
      "\xd3\x67\x0d\xe2\x7a\xc0\x14\x98\x8d\x3b\x70\x93\x69\x4c\x8f\xb0\xcc\xb7"
      "\x9f\x82\x08\xf0\x00\x12\xcd\x76\xc3\x03\x53\x79\x55\x61\x20\xae\xec\xeb"
      "\x86\x50\xc3\xeb\x21\x97\x17\xd3\x71\x28\x25\x53\x8d\xf9\x97\x66\x14\xf4"
      "\x7e\xa3\x6e\x2f\xcd\x9d\xe1\x85\x0f\x37\xe8\x2d\x98\x56\xad\xf8\x46\x45"
      "\xdc\x5f\xd0\xae\x93\x23\x0f\x0b\xec\x88\xa5\x8d\x0c\x5f\x9b\x01\x79\x79"
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      "\x0b\x68\x42\xa1\x36\xeb\xee\x90\x90\x81\x94\x15\x85\x7f\x26\xfe\x39\x09"
      "\x33\x91\x93\x04\xb5\x36\x1f\xee\xd2\xe2\x9f\xac\xe0\x59\xf3\x5b\xa3\x25"
      "\xe8\x59\xd2\xf6\x7c\x8f\x22\x43\x43\xf4\xd9\x32\xcd\x66\x98\x4a\x0b\x62"
      "\x04\x0e\xd5\xa7\xb8\x4b\xa2\xcb\xbd\xe6\xed\x5a\x78\x2d\x50\x3f\xe3\x6c"
      "\x47\x97\xf2\x96\x99\xe6\xfe\x99\xc6\xc9\x11\x17\x09\x32\xd2\x30\x7f\x80"
      "\xd5\x43\xd2\x4d\x46\x90\x3d\xdd\xfd\x70\xbc\x39\x84\x01\xbc\x75\x5d\x6b"
      "\x68\xc1\xab\x75\x1b\xf8\x84\x6c\x61\x27\x79\x3c\xa7\xe1\xc5\x7d\xaf\x22"
      "\x6d\xcd\x57\x8d\x53\x74\xa8\x9e\x35\xf7\xe9\xf3\xb6\x65\x28\x7d\x18\x27"
      "\x0b\x02\xcf\x7a\x70\x89\x8d\xc9\x63\x55\xeb\x4e\x20\x04\xbc\x8e\x3e\x24"
      "\xf0\x92\x7f\x24\x82\x90\x24\xa7\xf4\x61\xd6\x5c\xed\x06\x6b\x75\xb6\x49"
      "\x15\x68\xcb\x3f\x6b\x5f\x50\x86\x63\x31\xc9\x5e\xf4\x74\x37\x9b\xbd\x13"
      "\xb0\x3b\x5a\xf0\x1e\xa7\x90\x6c\x7c\xa0",
      4096);
  *(uint16_t*)0x20001004 = 0x1000;
  syscall(__NR_write, r[3], 0x20000000ul, 0x1006ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}