// 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[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(__NR_socket, 0xaul, 2ul, 0x88);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000380,
         "security\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*)0x200003a0 = 0xe;
  *(uint32_t*)0x200003a4 = 4;
  *(uint32_t*)0x200003a8 = 0x3c0;
  *(uint32_t*)0x200003ac = -1;
  *(uint32_t*)0x200003b0 = 0x2f0;
  *(uint32_t*)0x200003b4 = 0xf0;
  *(uint32_t*)0x200003b8 = 0x200;
  *(uint32_t*)0x200003bc = -1;
  *(uint32_t*)0x200003c0 = -1;
  *(uint32_t*)0x200003c4 = 0x2f0;
  *(uint32_t*)0x200003c8 = 0x2f0;
  *(uint32_t*)0x200003cc = 0x2f0;
  *(uint32_t*)0x200003d0 = -1;
  *(uint32_t*)0x200003d4 = 4;
  *(uint64_t*)0x200003d8 = 0;
  memset((void*)0x200003e0, 0, 136);
  *(uint32_t*)0x20000468 = 0;
  *(uint16_t*)0x2000046c = 0xa8;
  *(uint16_t*)0x2000046e = 0xf0;
  *(uint32_t*)0x20000470 = 0;
  *(uint64_t*)0x20000478 = 0;
  *(uint64_t*)0x20000480 = 0;
  *(uint16_t*)0x20000488 = 0x48;
  memcpy((void*)0x2000048a,
         "LED\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*)0x200004a7 = 0;
  memcpy((void*)0x200004a8,
         "syz0\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000",
         27);
  *(uint8_t*)0x200004c3 = 0;
  *(uint32_t*)0x200004c4 = 0;
  *(uint64_t*)0x200004c8 = 0;
  memcpy((void*)0x200004d0,
         " \001\000\000\000\000\000\000\000\000\000\000\000\000\000\001", 16);
  memcpy((void*)0x200004e0,
         " \001\000\000\000\000\000\000\000\000\000\000\000\000\000\000", 16);
  *(uint32_t*)0x200004f0 = htobe32(0);
  *(uint32_t*)0x200004f4 = htobe32(0);
  *(uint32_t*)0x200004f8 = htobe32(0);
  *(uint32_t*)0x200004fc = htobe32(0);
  *(uint32_t*)0x20000500 = htobe32(0);
  *(uint32_t*)0x20000504 = htobe32(0);
  *(uint32_t*)0x20000508 = htobe32(0);
  *(uint32_t*)0x2000050c = htobe32(0);
  memcpy((void*)0x20000510, "veth0_to_bridge\000", 16);
  memcpy((void*)0x20000520, "erspan0\000\000\000\000\000\000\000\000\000", 16);
  *(uint8_t*)0x20000530 = 0;
  *(uint8_t*)0x20000540 = 0;
  *(uint16_t*)0x20000550 = 0;
  *(uint8_t*)0x20000552 = 0;
  *(uint8_t*)0x20000553 = 0;
  *(uint8_t*)0x20000554 = 0;
  *(uint32_t*)0x20000558 = 0;
  *(uint16_t*)0x2000055c = 0xd0;
  *(uint16_t*)0x2000055e = 0x110;
  *(uint32_t*)0x20000560 = 0;
  *(uint64_t*)0x20000568 = 0;
  *(uint64_t*)0x20000570 = 0;
  *(uint16_t*)0x20000578 = 0x28;
  memcpy((void*)0x2000057a,
         "eui64\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*)0x20000597 = 0;
  *(uint32_t*)0x20000598 = 0;
  *(uint16_t*)0x200005a0 = 0x40;
  memcpy((void*)0x200005a2,
         "ERROR\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*)0x200005bf = 0;
  memcpy((void*)0x200005c0,
         "\xea\xb0\x44\xcb\x32\xac\xc4\xd4\x57\xbe\x4c\x52\x46\xdf\xce\xb5\x0d"
         "\x1a\x7f\x13\x86\xe1\xaf\x9b\x18\xa2\xfb\x8d\x5d\x85",
         30);
  memset((void*)0x200005e0, 0, 136);
  *(uint32_t*)0x20000668 = 0;
  *(uint16_t*)0x2000066c = 0xa8;
  *(uint16_t*)0x2000066e = 0xf0;
  *(uint32_t*)0x20000670 = 0;
  *(uint64_t*)0x20000678 = 0;
  *(uint64_t*)0x20000680 = 0;
  *(uint16_t*)0x20000688 = 0x48;
  memcpy((void*)0x2000068a,
         "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*)0x200006a7 = 1;
  *(uint8_t*)0x200006a8 = 0xfe;
  *(uint8_t*)0x200006a9 = 0x88;
  memset((void*)0x200006aa, 0, 12);
  *(uint8_t*)0x200006b6 = 0;
  *(uint8_t*)0x200006b7 = 1;
  memcpy((void*)0x200006b8, "xfrm0\000\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint64_t*)0x200006c8 = 0;
  memset((void*)0x200006d0, 0, 136);
  *(uint32_t*)0x20000758 = 0;
  *(uint16_t*)0x2000075c = 0xa8;
  *(uint16_t*)0x2000075e = 0xd0;
  *(uint32_t*)0x20000760 = 0;
  *(uint64_t*)0x20000768 = 0;
  *(uint64_t*)0x20000770 = 0;
  *(uint16_t*)0x20000778 = 0x28;
  memset((void*)0x2000077a, 0, 29);
  *(uint8_t*)0x20000797 = 0;
  *(uint32_t*)0x20000798 = 0xfffffffe;
  syscall(__NR_setsockopt, r[0], 0x29, 0x40, 0x20000380ul, 0x420ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0);
  if (res != -1)
    r[1] = res;
  *(uint64_t*)0x20000080 = 0;
  *(uint32_t*)0x20000088 = 0;
  *(uint64_t*)0x20000090 = 0x20001f00;
  *(uint64_t*)0x20001f00 = 0x200000c0;
  memcpy(
      (void*)0x200000c0,
      "\x78\x00\x00\x00\x30\x00\x21\x00\x00\x00\x40\x00\x00\x00\x00\x00\x00\x00"
      "\x00\x00\x64\x00\x01\x00\x60\x00\x01\x00\x08\x00\x01\x00\x69\x70\x74\x00"
      "\x38\x00\x02\x80\x08\x00\x02\x00\x00\x00\x00\x00\x2a\x00\x06\x00\x26",
      53);
  *(uint64_t*)0x20001f08 = 0x78;
  *(uint64_t*)0x20000098 = 1;
  *(uint64_t*)0x200000a0 = 0;
  *(uint64_t*)0x200000a8 = 0;
  *(uint32_t*)0x200000b0 = 0;
  syscall(__NR_sendmsg, r[1], 0x20000080ul, 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;
}