// https://syzkaller.appspot.com/bug?id=00fadf9a6326e13098672b601d57f644cae380e9
// 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 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 void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int 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 = 0;
  for (;; 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 < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(__NR_socket, 0xaul, 1ul, 0);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000000,
         "filter\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000",
         32);
  *(uint32_t*)0x20000020 = 0xe;
  *(uint32_t*)0x20000024 = 4;
  *(uint32_t*)0x20000028 = 0x390;
  *(uint32_t*)0x2000002c = -1;
  *(uint32_t*)0x20000030 = 0x1d0;
  *(uint32_t*)0x20000034 = 0xd0;
  *(uint32_t*)0x20000038 = 0xd0;
  *(uint32_t*)0x2000003c = -1;
  *(uint32_t*)0x20000040 = -1;
  *(uint32_t*)0x20000044 = 0x2c0;
  *(uint32_t*)0x20000048 = 0x2c0;
  *(uint32_t*)0x2000004c = 0x2c0;
  *(uint32_t*)0x20000050 = -1;
  *(uint32_t*)0x20000054 = 4;
  *(uint64_t*)0x20000058 = 0;
  *(uint64_t*)0x20000060 = htobe64(0);
  *(uint64_t*)0x20000068 = htobe64(1);
  *(uint8_t*)0x20000070 = -1;
  *(uint8_t*)0x20000071 = 2;
  memset((void*)0x20000072, 0, 13);
  *(uint8_t*)0x2000007f = 1;
  *(uint32_t*)0x20000080 = htobe32(0);
  *(uint32_t*)0x20000084 = htobe32(0);
  *(uint32_t*)0x20000088 = htobe32(0);
  *(uint32_t*)0x2000008c = htobe32(0);
  *(uint32_t*)0x20000090 = htobe32(0);
  *(uint32_t*)0x20000094 = htobe32(0);
  *(uint32_t*)0x20000098 = htobe32(0);
  *(uint32_t*)0x2000009c = htobe32(0);
  memcpy((void*)0x200000a0, "team_slave_1\000\000\000\000", 16);
  memcpy((void*)0x200000b0, "caif0\000\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint8_t*)0x200000c0 = 0;
  *(uint8_t*)0x200000d0 = 0;
  *(uint16_t*)0x200000e0 = 0;
  *(uint8_t*)0x200000e2 = 0;
  *(uint8_t*)0x200000e3 = 0;
  *(uint8_t*)0x200000e4 = 0;
  *(uint32_t*)0x200000e8 = 0;
  *(uint16_t*)0x200000ec = 0xa8;
  *(uint16_t*)0x200000ee = 0xd0;
  *(uint32_t*)0x200000f0 = 0;
  *(uint64_t*)0x200000f8 = 0;
  *(uint64_t*)0x20000100 = 0;
  *(uint16_t*)0x20000108 = 0x28;
  memcpy((void*)0x2000010a,
         "MARK\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000127 = 2;
  *(uint32_t*)0x20000128 = 0;
  *(uint32_t*)0x2000012c = 0;
  memset((void*)0x20000130, 0, 136);
  *(uint32_t*)0x200001b8 = 0;
  *(uint16_t*)0x200001bc = 0xd8;
  *(uint16_t*)0x200001be = 0x100;
  *(uint32_t*)0x200001c0 = 0;
  *(uint64_t*)0x200001c8 = 0;
  *(uint64_t*)0x200001d0 = 0;
  *(uint16_t*)0x200001d8 = 0x30;
  memcpy((void*)0x200001da,
         "frag\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x200001f7 = 0;
  *(uint32_t*)0x200001f8 = 0;
  *(uint32_t*)0x200001fc = 0;
  *(uint32_t*)0x20000200 = 0;
  *(uint8_t*)0x20000204 = 0;
  *(uint8_t*)0x20000205 = 0;
  *(uint16_t*)0x20000208 = 0x28;
  memcpy((void*)0x2000020a,
         "REJECT\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000227 = 0;
  *(uint32_t*)0x20000228 = 0;
  *(uint8_t*)0x20000230 = -1;
  *(uint8_t*)0x20000231 = 1;
  memset((void*)0x20000232, 0, 13);
  *(uint8_t*)0x2000023f = 1;
  *(uint64_t*)0x20000240 = htobe64(0);
  *(uint64_t*)0x20000248 = htobe64(1);
  *(uint32_t*)0x20000250 = htobe32(0);
  *(uint32_t*)0x20000254 = htobe32(0);
  *(uint32_t*)0x20000258 = htobe32(0);
  *(uint32_t*)0x2000025c = htobe32(0);
  *(uint32_t*)0x20000260 = htobe32(0);
  *(uint32_t*)0x20000264 = htobe32(0);
  *(uint32_t*)0x20000268 = htobe32(0);
  *(uint32_t*)0x2000026c = htobe32(0);
  memcpy((void*)0x20000270, "syzkaller0\000\000\000\000\000\000", 16);
  memcpy((void*)0x20000280, "veth0_to_bond\000\000\000", 16);
  *(uint8_t*)0x20000290 = 0;
  *(uint8_t*)0x200002a0 = 0;
  *(uint16_t*)0x200002b0 = 0;
  *(uint8_t*)0x200002b2 = 0;
  *(uint8_t*)0x200002b3 = 0;
  *(uint8_t*)0x200002b4 = 0;
  *(uint32_t*)0x200002b8 = 0;
  *(uint16_t*)0x200002bc = 0xa8;
  *(uint16_t*)0x200002be = 0xf0;
  *(uint32_t*)0x200002c0 = 0;
  *(uint64_t*)0x200002c8 = 0;
  *(uint64_t*)0x200002d0 = 0;
  *(uint16_t*)0x200002d8 = 0x48;
  memcpy((void*)0x200002da,
         "TEE\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x200002f7 = 1;
  *(uint8_t*)0x200002f8 = 0xfe;
  *(uint8_t*)0x200002f9 = 0x88;
  memset((void*)0x200002fa, 0, 12);
  *(uint8_t*)0x20000306 = 0;
  *(uint8_t*)0x20000307 = 1;
  memcpy((void*)0x20000308, "macvtap0\000\000\000\000\000\000\000\000", 16);
  *(uint64_t*)0x20000318 = 0;
  memset((void*)0x20000320, 0, 136);
  *(uint32_t*)0x200003a8 = 0;
  *(uint16_t*)0x200003ac = 0xa8;
  *(uint16_t*)0x200003ae = 0xd0;
  *(uint32_t*)0x200003b0 = 0;
  *(uint64_t*)0x200003b8 = 0;
  *(uint64_t*)0x200003c0 = 0;
  *(uint16_t*)0x200003c8 = 0x28;
  memset((void*)0x200003ca, 0, 29);
  *(uint8_t*)0x200003e7 = 0;
  *(uint32_t*)0x200003e8 = 0xfffffffe;
  syscall(__NR_setsockopt, r[0], 0x29, 0x40, 0x20000000ul, 0x3f0ul);
  memcpy((void*)0x20000000, "/dev/ppp\000", 9);
  res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000000ul, 0ul, 0ul);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x20000280 = 0;
  syscall(__NR_ioctl, r[1], 0xc004743e, 0x20000280ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x20000180 = 0;
  *(uint32_t*)0x20000188 = 0;
  *(uint64_t*)0x20000190 = 0x20000040;
  *(uint64_t*)0x20000040 = 0x20000480;
  memcpy((void*)0x20000480,
         "\x50\x00\x00\x00\x00\x0b\x01\x00\x00\x00\xea\xff\xff\xff\xff\xff\x02"
         "\x00\x00\x01\x08\x00\x02\x40\x00\x00\x00\x03\x09\x00\x01\x00\xaa\xeb"
         "\x72\x30\x00\x20\x00\x00\x08\x00\x03",
         43);
  *(uint64_t*)0x20000048 = 0x50;
  *(uint64_t*)0x20000198 = 1;
  *(uint64_t*)0x200001a0 = 0;
  *(uint64_t*)0x200001a8 = 0;
  *(uint32_t*)0x200001b0 = 0;
  syscall(__NR_sendmsg, r[2], 0x20000180ul, 0ul);
}
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);
  loop();
  return 0;
}