// https://syzkaller.appspot.com/bug?id=1a86b34e8f0ab2d158813843482ee4f0b2b9bd68
// 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>

#ifndef __NR_bpf
#define __NR_bpf 321
#endif

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[6] = {0xffffffffffffffff, 0xffffffffffffffff, 0x0,
                 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  *(uint32_t*)0x20000200 = 0xc;
  *(uint32_t*)0x20000204 = 0xe;
  *(uint64_t*)0x20000208 = 0;
  *(uint64_t*)0x20000210 = 0;
  *(uint32_t*)0x20000218 = 0;
  *(uint32_t*)0x2000021c = 0;
  *(uint64_t*)0x20000220 = 0;
  *(uint32_t*)0x20000228 = 0;
  *(uint32_t*)0x2000022c = 0;
  memset((void*)0x20000230, 0, 16);
  *(uint32_t*)0x20000240 = 0;
  *(uint32_t*)0x20000244 = 0;
  *(uint32_t*)0x20000248 = -1;
  *(uint32_t*)0x2000024c = 8;
  *(uint64_t*)0x20000250 = 0;
  *(uint32_t*)0x20000258 = 0;
  *(uint32_t*)0x2000025c = 0x10;
  *(uint64_t*)0x20000260 = 0;
  *(uint32_t*)0x20000268 = 0;
  *(uint32_t*)0x2000026c = 0;
  *(uint32_t*)0x20000270 = -1;
  *(uint32_t*)0x20000274 = 0;
  *(uint64_t*)0x20000278 = 0;
  syscall(__NR_bpf, 5ul, 0x20000200ul, 0x80ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0);
  if (res != -1)
    r[0] = res;
  res = syscall(__NR_socket, 2ul, 3ul, 5);
  if (res != -1)
    r[1] = res;
  syscall(__NR_setsockopt, r[1], 0, 8, 0x20000200ul, 1ul);
  *(uint32_t*)0x20000400 = 7;
  res = syscall(__NR_getsockopt, r[1], 0, 8, 0x20000040ul, 0x20000400ul);
  if (res != -1)
    r[2] = *(uint32_t*)0x20000040;
  res = syscall(__NR_socket, 0x11ul, 0x800000003ul, 0);
  if (res != -1)
    r[3] = res;
  *(uint16_t*)0x20000080 = 0x11;
  memcpy((void*)0x20000082,
         "\x00\x00\x01\x00\x00\x00\x00\x00\x08\x00\x44\x94\x4e\xeb\xa7\x1a\x49"
         "\x76\xe2\x52\x92\x2c\xb1\x8f\x6e\x2e\x2a\xba\x00\x00\x00\x01\x2e\x0b"
         "\x38\x36\x00\x54\x04\xb0\xe0\x30\x1a\x4c\xe8\x75\xf2\xe3\xff\x5f\x16"
         "\x3e\xe3\x40\xb7\x67\x95\x00\x80\x00\x00\x00\x00\x00\x00\x01\x01\x01"
         "\x3c\x58\x11\x03\x9e\x15\x77\x50\x27\xec\xce\x66\xfd\x79\x2b\xbf\x0e"
         "\x5b\xf5\xff\x1b\x08\x16\xf3\xf6\xdb\x1c\x00\x01\x00\x00\x00\x00\x00"
         "\x00\x00\x49\x74\x00\x00\x00\x00\x00\x00\x00\x06\xad\x8e\x5e\xcc\x32"
         "\x6d\x3a\x09\xff\xc2\xc6\x54",
         126);
  syscall(__NR_bind, r[3], 0x20000080ul, 0x80ul);
  *(uint32_t*)0x20000000 = 0x14;
  res = syscall(__NR_getsockname, r[3], 0x20000340ul, 0x20000000ul);
  if (res != -1)
    r[4] = *(uint32_t*)0x20000344;
  res = syscall(__NR_socket, 0x10ul, 3ul, 0);
  if (res != -1)
    r[5] = res;
  *(uint64_t*)0x20000000 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint64_t*)0x20000010 = 0x200000c0;
  *(uint64_t*)0x200000c0 = 0x20000880;
  *(uint32_t*)0x20000880 = 0x4c;
  *(uint16_t*)0x20000884 = 0x2c;
  *(uint16_t*)0x20000886 = 0xd27;
  *(uint32_t*)0x20000888 = 0;
  *(uint32_t*)0x2000088c = 0;
  *(uint8_t*)0x20000890 = 0;
  *(uint8_t*)0x20000891 = 0;
  *(uint16_t*)0x20000892 = 0;
  *(uint32_t*)0x20000894 = r[2];
  *(uint16_t*)0x20000898 = 0;
  *(uint16_t*)0x2000089a = 0;
  *(uint16_t*)0x2000089c = 0;
  *(uint16_t*)0x2000089e = 0;
  *(uint16_t*)0x200008a0 = 0xc;
  *(uint16_t*)0x200008a2 = 0;
  *(uint16_t*)0x200008a4 = 0xc;
  *(uint16_t*)0x200008a6 = 1;
  memcpy((void*)0x200008a8, "tcindex\000", 8);
  *(uint16_t*)0x200008b0 = 0x1c;
  *(uint16_t*)0x200008b2 = 2;
  *(uint16_t*)0x200008b4 = 8;
  *(uint16_t*)0x200008b6 = 3;
  *(uint32_t*)0x200008b8 = 7;
  *(uint16_t*)0x200008bc = 8;
  *(uint16_t*)0x200008be = 5;
  *(uint16_t*)0x200008c0 = 0;
  *(uint16_t*)0x200008c2 = 0;
  *(uint16_t*)0x200008c4 = 8;
  *(uint16_t*)0x200008c6 = 1;
  *(uint32_t*)0x200008c8 = 0x61f;
  *(uint64_t*)0x200000c8 = 0x4c;
  *(uint64_t*)0x20000018 = 1;
  *(uint64_t*)0x20000020 = 0;
  *(uint64_t*)0x20000028 = 0;
  *(uint32_t*)0x20000030 = 0;
  syscall(__NR_sendmsg, r[0], 0x20000000ul, 0ul);
  *(uint64_t*)0x20000140 = 0;
  *(uint32_t*)0x20000148 = 0;
  *(uint64_t*)0x20000150 = 0x20000100;
  *(uint64_t*)0x20000100 = 0x20000500;
  memcpy((void*)0x20000500,
         "\x30\x00\x00\x00\x24\x00\x0b\x0f\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00",
         20);
  *(uint32_t*)0x20000514 = r[4];
  memcpy(
      (void*)0x20000518,
      "\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x00\x0c\x00\x01\x00\x69\x6e"
      "\x67\x72\x65\x73\x73\x00\x1b\xf2\x93\x42\xa2\x98\x5b\x3d\x53\x03\x65\x0b"
      "\x8e\xea\x06\x1c\x44\x9b\x9c\x8c\x6a\x4a\x26\xe3\x4f\x9d\x74\x86\x6c\x3c"
      "\x9e\x53\x4a\x3c\x8b\xca\x26\x38\xa2\x51\x5d\xf6\x5f\x41\xba\x86\xb0\xd6"
      "\x6e\x95\xa0\xfa\xe1\xff\xe9\xda\xe2\xa6\xbf\xb9\x1e\xbc\xe0\xf0\x00\x92"
      "\x07\x8e\xd0\x38\x82\xca\x38\x2f\xe1\xeb\xc5\xd8\x5a\xcf\x5c\x77\xfc\x5f"
      "\xd3\x6b\xe8\xf3\x73\x56\x49\x4d\x67\x9f\xe5\x42\x59\x68\x72\x1a\xbc\x57"
      "\xdd\x19\xb8\xdc\xd2\x42\xb5\x9f\xde\x26\x8d\xdf\x4a\x00\xd3\x6f\xa9\x4b"
      "\x84\xbf\x7b\x9a\x55\x1f\x56\x80\xc3\x71\xa8\xc1\x37\x83\x35\xd8\x6a\xad"
      "\xb9\xeb\xde\x92\xec\xe5\x5b\xa2\x32\xe5\xee\x8b\xcd\x52\x22\x4c\x50\x90"
      "\x60\xd5\x22\xbf\x93\xd5\x62\x42\x87\x00\xfd\x25\x54\x8a\xd0\x01\x4d\xa3"
      "\x4d\xf5\x1b\xd2\xaf\x21\x88\x39\x1f\x1a\xc4\xff\x9c\xac\x0c\x8f\x5d\x5c"
      "\x1b\x5c\x8a\x97\x28\x8a\x90\x5c\xd0\x86\xdf\xee\xf0\x1b\xb9\x08\xf9\x51"
      "\xbf\x57\x44\x01\x48\xaf\x49\x5b\xdd\x63\xfd\xd1\x05\x0d\x53\xe4\x68\x4e"
      "\x6b\x3f\x9b\x8d\x4f\x70\x7e\x50\xa0\x4f\x58\xcc\x50\x23",
      266);
  *(uint64_t*)0x20000108 = 0x30;
  *(uint64_t*)0x20000158 = 1;
  *(uint64_t*)0x20000160 = 0;
  *(uint64_t*)0x20000168 = 0;
  *(uint32_t*)0x20000170 = 0;
  syscall(__NR_sendmsg, r[5], 0x20000140ul, 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;
}