// https://syzkaller.appspot.com/bug?id=5f31b30406d84a86d4b7a42c103f6eda07eed137
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <errno.h>
#include <sched.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/mount.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>

static void setup_common()
{
  if (mount(0, "/sys/fs/fuse/connections", "fusectl", 0, 0)) {
  }
}

static void loop();

static void sandbox_common()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  setsid();
  struct rlimit rlim;
  rlim.rlim_cur = rlim.rlim_max = 160 << 20;
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 8 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 136 << 20;
  setrlimit(RLIMIT_FSIZE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 1 << 20;
  setrlimit(RLIMIT_STACK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 0;
  setrlimit(RLIMIT_CORE, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 256;
  setrlimit(RLIMIT_NOFILE, &rlim);
  if (unshare(CLONE_NEWNS)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
}

int wait_for_loop(int pid)
{
  if (pid < 0)
    exit(1);
  int status = 0;
  while (waitpid(-1, &status, __WALL) != pid) {
  }
  return WEXITSTATUS(status);
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid != 0)
    return wait_for_loop(pid);
  setup_common();
  sandbox_common();
  if (unshare(CLONE_NEWNET)) {
  }
  loop();
  exit(1);
}

uint64_t r[1] = {0xffffffffffffffff};

void loop(void)
{
  long res = 0;
  res = syscall(__NR_socket, 0x10, 0x8000000000000003, 0);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000080 = 0x20000140;
  *(uint16_t*)0x20000140 = 0x10;
  *(uint16_t*)0x20000142 = 0;
  *(uint32_t*)0x20000144 = 0;
  *(uint32_t*)0x20000148 = 0;
  *(uint32_t*)0x20000088 = 0x80;
  *(uint64_t*)0x20000090 = 0x20000000;
  *(uint64_t*)0x20000000 = 0x20014f79;
  memcpy((void*)0x20014f79,
         "\x55\x00\x00\x00\x18\x00\x7f\xcd\xb7\x2d\x1c\xb2\xa4\xa2\x80\xa8\x0a"
         "\x06\x05\x00\x00\xa8\x43\x02\x91\x05\x23\x69\x25\x00\x08\x00\x08\x00"
         "\x0c\x40\x00\x13\x00\x00\x14\x00\xa3\x07\x0d\x00\x00\x00\x03\x00\x00"
         "\xdc\x13\x38\xd5\x44\x00\x00\x9b\x84\x22\x6e\xb7\x5a\xfb\x83\xde\x44"
         "\x8d\xaa\x72\x27\xc4\x3a\xb8\x22\x00\x00\x06\x0c\xec\x4f\x8b\x91\xd4",
         85);
  *(uint64_t*)0x20000008 = 0x55;
  *(uint64_t*)0x20000098 = 1;
  *(uint64_t*)0x200000a0 = 0x20000000;
  *(uint64_t*)0x200000a8 = 0;
  *(uint32_t*)0x200000b0 = 0;
  syscall(__NR_sendmsg, r[0], 0x20000080, 0);
}
int main(void)
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  do_sandbox_none();
  return 0;
}