// https://syzkaller.appspot.com/bug?id=b9f86a8c5e5099c4a982dd6da3be3a6a59d8e0ab
// 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_bind
#define __NR_bind 200
#endif
#ifndef __NR_ioctl
#define __NR_ioctl 29
#endif
#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_sendmsg
#define __NR_sendmsg 211
#endif
#ifndef __NR_setsockopt
#define __NR_setsockopt 208
#endif

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;
}

const int kInitNetNsFd = 201;

static long syz_init_net_socket(volatile long domain, volatile long type,
                                volatile long proto)
{
  return syscall(__NR_socket, domain, type, proto);
}

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

void execute_one(void)
{
  intptr_t res = 0;
  *(uint64_t*)0x200001c0 = 0;
  *(uint32_t*)0x200001c8 = 0;
  *(uint64_t*)0x200001d0 = 0x20000180;
  *(uint64_t*)0x20000180 = 0x20000000;
  *(uint8_t*)0x20000000 = 2;
  *(uint8_t*)0x20000001 = 0;
  *(uint8_t*)0x20000002 = 0;
  *(uint8_t*)0x20000003 = 5;
  *(uint16_t*)0x20000004 = 7;
  *(uint16_t*)0x20000006 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint32_t*)0x2000000c = 0;
  *(uint16_t*)0x20000010 = 5;
  *(uint16_t*)0x20000012 = 0x1a;
  *(uint64_t*)0x20000014 = htobe64(0);
  *(uint64_t*)0x2000001c = htobe64(1);
  *(uint32_t*)0x20000024 = htobe32(0x7f000001);
  *(uint16_t*)0x20000034 = 0;
  *(uint8_t*)0x20000036 = 0;
  *(uint8_t*)0x20000037 = 0;
  *(uint64_t*)0x20000188 = 0x38;
  *(uint64_t*)0x200001d8 = 1;
  *(uint64_t*)0x200001e0 = 0;
  *(uint64_t*)0x200001e8 = 0;
  *(uint32_t*)0x200001f0 = 0;
  syscall(__NR_sendmsg, /*fd=*/-1, /*msg=*/0x200001c0ul, /*f=*/0ul);
  res = -1;
  res = syz_init_net_socket(/*fam=*/0x1f, /*type=*/5, /*proto=*/2);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000000,
         "bpq0\000\000\000\000\000\000\000\000\000\000\000\000", 16);
  syscall(__NR_setsockopt, /*fd=*/-1, /*level=*/0x101, /*optname=*/0x19,
          /*optval=*/0x20000000ul, /*optlen=*/0x10ul);
  syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x8914, /*arg=*/0x20000000ul);
  *(uint16_t*)0x20000000 = 0x26;
  memcpy((void*)0x20000002, "hash\000\000\000\000\000\000\000\000\000\000", 14);
  *(uint32_t*)0x20000010 = 0;
  *(uint32_t*)0x20000014 = 0;
  memcpy(
      (void*)0x20000018,
      "wp512-"
      "generic\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",
      64);
  syscall(__NR_bind, /*fd=*/-1, /*addr=*/0x20000000ul, /*addrlen=*/0x58ul);
  res = -1;
  res = syz_init_net_socket(/*domain=*/6, /*type=*/5, /*proto=*/0);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x20000180 = 1;
  *(uint8_t*)0x20000184 = 0x98;
  *(uint8_t*)0x20000185 = 0x92;
  *(uint8_t*)0x20000186 = 0x9c;
  *(uint8_t*)0x20000187 = 0xaa;
  *(uint8_t*)0x20000188 = 0xb0;
  *(uint8_t*)0x20000189 = 0x40;
  *(uint8_t*)0x2000018a = 2;
  memcpy((void*)0x2000018b,
         "bpq0\000\000\000\000\000\000\000\000\000\000\000\000", 16);
  *(uint32_t*)0x2000019c = 0;
  memcpy((void*)0x200001a0, "syz0\000\000\000", 7);
  *(uint8_t*)0x200001a7 = 0x40;
  *(uint8_t*)0x200001a8 = 0x40;
  *(uint8_t*)0x200001a9 = 0x40;
  *(uint8_t*)0x200001aa = 0x40;
  *(uint8_t*)0x200001ab = 0x40;
  *(uint8_t*)0x200001ac = 0x40;
  *(uint8_t*)0x200001ad = 0;
  *(uint32_t*)0x200001b0 = 0;
  *(uint32_t*)0x200001b4 = 0;
  *(uint8_t*)0x200001b8 = 0x40;
  *(uint8_t*)0x200001b9 = 0x40;
  *(uint8_t*)0x200001ba = 0x40;
  *(uint8_t*)0x200001bb = 0x40;
  *(uint8_t*)0x200001bc = 0x40;
  *(uint8_t*)0x200001bd = 0x40;
  *(uint8_t*)0x200001be = 0;
  *(uint8_t*)0x200001bf = 0xcc;
  *(uint8_t*)0x200001c0 = 0xcc;
  *(uint8_t*)0x200001c1 = 0xcc;
  *(uint8_t*)0x200001c2 = 0xcc;
  *(uint8_t*)0x200001c3 = 0xcc;
  *(uint8_t*)0x200001c4 = 0xcc;
  *(uint8_t*)0x200001c5 = 1 + procid * 4;
  *(uint8_t*)0x200001c6 = 0xbb;
  *(uint8_t*)0x200001c7 = 0xbb;
  *(uint8_t*)0x200001c8 = 0xbb;
  *(uint8_t*)0x200001c9 = 1;
  *(uint8_t*)0x200001ca = 0 + procid * 1;
  *(uint8_t*)0x200001cd = 0x98;
  *(uint8_t*)0x200001ce = 0x92;
  *(uint8_t*)0x200001cf = 0x9c;
  *(uint8_t*)0x200001d0 = 0xaa;
  *(uint8_t*)0x200001d1 = 0xb0;
  *(uint8_t*)0x200001d2 = 0x40;
  *(uint8_t*)0x200001d3 = 2;
  *(uint8_t*)0x200001d4 = 0x98;
  *(uint8_t*)0x200001d5 = 0x92;
  *(uint8_t*)0x200001d6 = 0x9c;
  *(uint8_t*)0x200001d7 = 0xaa;
  *(uint8_t*)0x200001d8 = 0xb0;
  *(uint8_t*)0x200001d9 = 0x40;
  *(uint8_t*)0x200001da = 2;
  *(uint8_t*)0x200001db = 0x98;
  *(uint8_t*)0x200001dc = 0x92;
  *(uint8_t*)0x200001dd = 0x9c;
  *(uint8_t*)0x200001de = 0xaa;
  *(uint8_t*)0x200001df = 0xb0;
  *(uint8_t*)0x200001e0 = 0x40;
  *(uint8_t*)0x200001e1 = 2;
  *(uint8_t*)0x200001e2 = 0xcc;
  *(uint8_t*)0x200001e3 = 0xcc;
  *(uint8_t*)0x200001e4 = 0xcc;
  *(uint8_t*)0x200001e5 = 0xcc;
  *(uint8_t*)0x200001e6 = 0xcc;
  *(uint8_t*)0x200001e7 = 0xcc;
  *(uint8_t*)0x200001e8 = 2 + procid * 4;
  *(uint8_t*)0x200001e9 = 0x40;
  *(uint8_t*)0x200001ea = 0x40;
  *(uint8_t*)0x200001eb = 0x40;
  *(uint8_t*)0x200001ec = 0x40;
  *(uint8_t*)0x200001ed = 0x40;
  *(uint8_t*)0x200001ee = 0x40;
  *(uint8_t*)0x200001ef = 0;
  syscall(__NR_ioctl, /*fd=*/r[1], /*cmd=*/0x890c, /*arg=*/0x20000180ul);
  res = -1;
  res = syz_init_net_socket(/*fam=*/0x1f, /*type=*/5, /*proto=*/2);
  if (res != -1)
    r[2] = res;
  memcpy((void*)0x20000000,
         "bpq0\000\000\000\000\000\000\000\000\000\000\000\000", 16);
  syscall(__NR_setsockopt, /*fd=*/-1, /*level=*/0x101, /*optname=*/0x19,
          /*optval=*/0x20000000ul, /*optlen=*/0x10ul);
  syscall(__NR_ioctl, /*fd=*/r[2], /*cmd=*/0x8914, /*arg=*/0x20000000ul);
  res = -1;
  res = syz_init_net_socket(/*domain=*/6, /*type=*/5, /*proto=*/0);
  if (res != -1)
    r[3] = res;
  *(uint32_t*)0x20000180 = 1;
  *(uint8_t*)0x20000184 = 0x98;
  *(uint8_t*)0x20000185 = 0x92;
  *(uint8_t*)0x20000186 = 0x9c;
  *(uint8_t*)0x20000187 = 0xaa;
  *(uint8_t*)0x20000188 = 0xb0;
  *(uint8_t*)0x20000189 = 0x40;
  *(uint8_t*)0x2000018a = 2;
  memcpy((void*)0x2000018b,
         "bpq0\000\000\000\000\000\000\000\000\000\000\000\000", 16);
  *(uint32_t*)0x2000019c = 1;
  memcpy((void*)0x200001a0, "syz0\000\000\000", 7);
  *(uint8_t*)0x200001a7 = 0x40;
  *(uint8_t*)0x200001a8 = 0x40;
  *(uint8_t*)0x200001a9 = 0x40;
  *(uint8_t*)0x200001aa = 0x40;
  *(uint8_t*)0x200001ab = 0x40;
  *(uint8_t*)0x200001ac = 0x40;
  *(uint8_t*)0x200001ad = 0;
  *(uint32_t*)0x200001b0 = 0;
  *(uint32_t*)0x200001b4 = 0;
  *(uint8_t*)0x200001b8 = 0x40;
  *(uint8_t*)0x200001b9 = 0x40;
  *(uint8_t*)0x200001ba = 0x40;
  *(uint8_t*)0x200001bb = 0x40;
  *(uint8_t*)0x200001bc = 0x40;
  *(uint8_t*)0x200001bd = 0x40;
  *(uint8_t*)0x200001be = 0;
  *(uint8_t*)0x200001bf = 0xcc;
  *(uint8_t*)0x200001c0 = 0xcc;
  *(uint8_t*)0x200001c1 = 0xcc;
  *(uint8_t*)0x200001c2 = 0xcc;
  *(uint8_t*)0x200001c3 = 0xcc;
  *(uint8_t*)0x200001c4 = 0xcc;
  *(uint8_t*)0x200001c5 = 1 + procid * 4;
  *(uint8_t*)0x200001c6 = 0xbb;
  *(uint8_t*)0x200001c7 = 0xbb;
  *(uint8_t*)0x200001c8 = 0xbb;
  *(uint8_t*)0x200001c9 = 1;
  *(uint8_t*)0x200001ca = 0 + procid * 1;
  *(uint8_t*)0x200001cd = 0x98;
  *(uint8_t*)0x200001ce = 0x92;
  *(uint8_t*)0x200001cf = 0x9c;
  *(uint8_t*)0x200001d0 = 0xaa;
  *(uint8_t*)0x200001d1 = 0xb0;
  *(uint8_t*)0x200001d2 = 0x40;
  *(uint8_t*)0x200001d3 = 2;
  *(uint8_t*)0x200001d4 = 0x98;
  *(uint8_t*)0x200001d5 = 0x92;
  *(uint8_t*)0x200001d6 = 0x9c;
  *(uint8_t*)0x200001d7 = 0xaa;
  *(uint8_t*)0x200001d8 = 0xb0;
  *(uint8_t*)0x200001d9 = 0x40;
  *(uint8_t*)0x200001da = 2;
  *(uint8_t*)0x200001db = 0x98;
  *(uint8_t*)0x200001dc = 0x92;
  *(uint8_t*)0x200001dd = 0x9c;
  *(uint8_t*)0x200001de = 0xaa;
  *(uint8_t*)0x200001df = 0xb0;
  *(uint8_t*)0x200001e0 = 0x40;
  *(uint8_t*)0x200001e1 = 2;
  *(uint8_t*)0x200001e2 = 0xcc;
  *(uint8_t*)0x200001e3 = 0xcc;
  *(uint8_t*)0x200001e4 = 0xcc;
  *(uint8_t*)0x200001e5 = 0xcc;
  *(uint8_t*)0x200001e6 = 0xcc;
  *(uint8_t*)0x200001e7 = 0xcc;
  *(uint8_t*)0x200001e8 = 2 + procid * 4;
  *(uint8_t*)0x200001e9 = 0x40;
  *(uint8_t*)0x200001ea = 0x40;
  *(uint8_t*)0x200001eb = 0x40;
  *(uint8_t*)0x200001ec = 0x40;
  *(uint8_t*)0x200001ed = 0x40;
  *(uint8_t*)0x200001ee = 0x40;
  *(uint8_t*)0x200001ef = 0;
  syscall(__NR_ioctl, /*fd=*/r[3], /*cmd=*/0x890b, /*arg=*/0x20000180ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  for (procid = 0; procid < 5; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}