// 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;
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

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;
  memcpy((void*)0x20000040, "/dev/ppp\000", 9);
  res = syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000040ul, 0ul, 0ul);
  if (res != -1)
    r[0] = res;
  *(uint32_t*)0x20000880 = 0;
  syscall(__NR_ioctl, r[0], 0xc004743e, 0x20000880ul);
  res = syscall(__NR_socket, 0xaul, 2ul, 0x88);
  if (res != -1)
    r[1] = res;
  memcpy((void*)0x20007340,
         "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*)0x20007360 = 0xe;
  *(uint32_t*)0x20007364 = 4;
  *(uint32_t*)0x20007368 = 0x4b8;
  *(uint32_t*)0x2000736c = -1;
  *(uint32_t*)0x20007370 = 0x218;
  *(uint32_t*)0x20007374 = 0x318;
  *(uint32_t*)0x20007378 = 0;
  *(uint32_t*)0x2000737c = -1;
  *(uint32_t*)0x20007380 = -1;
  *(uint32_t*)0x20007384 = 0x3e8;
  *(uint32_t*)0x20007388 = 0x3e8;
  *(uint32_t*)0x2000738c = 0x3e8;
  *(uint32_t*)0x20007390 = -1;
  *(uint32_t*)0x20007394 = 4;
  *(uint64_t*)0x20007398 = 0;
  memset((void*)0x200073a0, 0, 136);
  *(uint32_t*)0x20007428 = 0;
  *(uint16_t*)0x2000742c = 0x1d0;
  *(uint16_t*)0x2000742e = 0x218;
  *(uint32_t*)0x20007430 = 0;
  *(uint64_t*)0x20007438 = 0;
  *(uint64_t*)0x20007440 = 0;
  *(uint16_t*)0x20007448 = 0x30;
  memcpy((void*)0x2000744a,
         "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*)0x20007467 = 1;
  *(uint32_t*)0x20007468 = 0;
  *(uint32_t*)0x2000746c = 0;
  *(uint8_t*)0x20007470 = 0;
  *(uint16_t*)0x20007478 = 0xf8;
  memcpy((void*)0x2000747a,
         "recent\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*)0x20007497 = 0;
  *(uint32_t*)0x20007498 = 0;
  *(uint32_t*)0x2000749c = 0;
  *(uint8_t*)0x200074a0 = 2;
  *(uint8_t*)0x200074a1 = 0;
  memcpy(
      (void*)0x200074a2,
      "syz0\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\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\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\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\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\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\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\000\000\000\000\000\000\000\000\000\000\000\000\000\000",
      200);
  *(uint8_t*)0x2000756a = 0;
  *(uint16_t*)0x20007570 = 0x48;
  memcpy((void*)0x20007572,
         "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*)0x2000758f = 1;
  *(uint8_t*)0x20007590 = 0xfe;
  *(uint8_t*)0x20007591 = 0x80;
  memset((void*)0x20007592, 0, 13);
  *(uint8_t*)0x2000759f = 0xbb;
  memcpy((void*)0x200075a0, "wlan1\000\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint64_t*)0x200075b0 = 0;
  *(uint8_t*)0x200075b8 = 0xfe;
  *(uint8_t*)0x200075b9 = 0x80;
  memset((void*)0x200075ba, 0, 13);
  *(uint8_t*)0x200075c7 = 0xbb;
  *(uint8_t*)0x200075c8 = 0xfe;
  *(uint8_t*)0x200075c9 = 0x80;
  memset((void*)0x200075ca, 0, 13);
  *(uint8_t*)0x200075d7 = 0xaa;
  *(uint32_t*)0x200075d8 = htobe32(0);
  *(uint32_t*)0x200075dc = htobe32(0);
  *(uint32_t*)0x200075e0 = htobe32(0);
  *(uint32_t*)0x200075e4 = htobe32(0);
  *(uint32_t*)0x200075e8 = htobe32(0);
  *(uint32_t*)0x200075ec = htobe32(0);
  *(uint32_t*)0x200075f0 = htobe32(0);
  *(uint32_t*)0x200075f4 = htobe32(0);
  memcpy((void*)0x200075f8, "ip6_vti0\000\000\000\000\000\000\000\000", 16);
  memcpy((void*)0x20007608, "veth1_to_bond\000\000\000", 16);
  *(uint8_t*)0x20007618 = 0;
  *(uint8_t*)0x20007628 = 0;
  *(uint16_t*)0x20007638 = 0;
  *(uint8_t*)0x2000763a = 0;
  *(uint8_t*)0x2000763b = 0;
  *(uint8_t*)0x2000763c = 0;
  *(uint32_t*)0x20007640 = 0;
  *(uint16_t*)0x20007644 = 0xd8;
  *(uint16_t*)0x20007646 = 0x100;
  *(uint32_t*)0x20007648 = 0;
  *(uint64_t*)0x20007650 = 0;
  *(uint64_t*)0x20007658 = 0;
  *(uint16_t*)0x20007660 = 0x30;
  memcpy((void*)0x20007662,
         "realm\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*)0x2000767f = 0;
  *(uint32_t*)0x20007680 = 0;
  *(uint32_t*)0x20007684 = 0;
  *(uint8_t*)0x20007688 = 0;
  *(uint16_t*)0x20007690 = 0x28;
  memcpy((void*)0x20007692,
         "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*)0x200076af = 0;
  *(uint32_t*)0x200076b0 = 0;
  memset((void*)0x200076b8, 0, 16);
  memset((void*)0x200076c8, 0, 16);
  *(uint32_t*)0x200076d8 = htobe32(0);
  *(uint32_t*)0x200076dc = htobe32(0);
  *(uint32_t*)0x200076e0 = htobe32(0);
  *(uint32_t*)0x200076e4 = htobe32(0);
  *(uint32_t*)0x200076e8 = htobe32(0);
  *(uint32_t*)0x200076ec = htobe32(0);
  *(uint32_t*)0x200076f0 = htobe32(0);
  *(uint32_t*)0x200076f4 = htobe32(0);
  memcpy((void*)0x200076f8, "virt_wifi0\000\000\000\000\000\000", 16);
  memcpy((void*)0x20007708, "team0\000\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint8_t*)0x20007718 = 0;
  *(uint8_t*)0x20007728 = 0;
  *(uint16_t*)0x20007738 = 0;
  *(uint8_t*)0x2000773a = 0;
  *(uint8_t*)0x2000773b = 0;
  *(uint8_t*)0x2000773c = 0;
  *(uint32_t*)0x20007740 = 0;
  *(uint16_t*)0x20007744 = 0xa8;
  *(uint16_t*)0x20007746 = 0xd0;
  *(uint32_t*)0x20007748 = 0;
  *(uint64_t*)0x20007750 = 0;
  *(uint64_t*)0x20007758 = 0;
  *(uint16_t*)0x20007760 = 0x28;
  memcpy((void*)0x20007762,
         "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*)0x2000777f = 0;
  *(uint32_t*)0x20007780 = 0;
  memset((void*)0x20007788, 0, 136);
  *(uint32_t*)0x20007810 = 0;
  *(uint16_t*)0x20007814 = 0xa8;
  *(uint16_t*)0x20007816 = 0xd0;
  *(uint32_t*)0x20007818 = 0;
  *(uint64_t*)0x20007820 = 0;
  *(uint64_t*)0x20007828 = 0;
  *(uint16_t*)0x20007830 = 0x28;
  memset((void*)0x20007832, 0, 29);
  *(uint8_t*)0x2000784f = 0;
  *(uint32_t*)0x20007850 = 0xfffffffe;
  syscall(__NR_setsockopt, r[1], 0x29, 0x40, 0x20007340ul, 0x518ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x20000100 = 0;
  *(uint32_t*)0x20000108 = 0;
  *(uint64_t*)0x20000110 = 0x200000c0;
  *(uint64_t*)0x200000c0 = 0x20000040;
  *(uint32_t*)0x20000040 = 0x2c;
  *(uint8_t*)0x20000044 = 0;
  *(uint8_t*)0x20000045 = 0xb;
  *(uint16_t*)0x20000046 = 0x801;
  *(uint32_t*)0x20000048 = 0;
  *(uint32_t*)0x2000004c = 0;
  *(uint8_t*)0x20000050 = 3;
  *(uint8_t*)0x20000051 = 0;
  *(uint16_t*)0x20000052 = htobe16(0);
  *(uint16_t*)0x20000054 = 5;
  *(uint16_t*)0x20000056 = 1;
  memset((void*)0x20000058, 0, 1);
  *(uint16_t*)0x2000005c = 8;
  STORE_BY_BITMASK(uint16_t, , 0x2000005e, 3, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000005f, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000005f, 0, 7, 1);
  *(uint32_t*)0x20000060 = htobe32(0);
  *(uint16_t*)0x20000064 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x20000066, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000067, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000067, 0, 7, 1);
  *(uint32_t*)0x20000068 = htobe32(0);
  *(uint64_t*)0x200000c8 = 0x2c;
  *(uint64_t*)0x20000118 = 1;
  *(uint64_t*)0x20000120 = 0;
  *(uint64_t*)0x20000128 = 0;
  *(uint32_t*)0x20000130 = 0;
  syscall(__NR_sendmsg, r[2], 0x20000100ul, 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;
}