// https://syzkaller.appspot.com/bug?id=f9364472bcbd3cb1738f774dd3711668cb402216
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <sched.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <stdio.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <unistd.h>

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}
#include <errno.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>

const int kFailStatus = 67;
const int kRetryStatus = 69;

static void fail(const char* msg, ...)
{
  int e = errno;
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit((e == ENOMEM || e == EAGAIN) ? kRetryStatus : kFailStatus);
}

static uintptr_t syz_open_dev(uintptr_t a0, uintptr_t a1, uintptr_t a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf));
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(a1 % 10);
      a1 /= 10;
    }
    return open(buf, a2, 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 = 128 << 20;
  setrlimit(RLIMIT_AS, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 8 << 20;
  setrlimit(RLIMIT_MEMLOCK, &rlim);
  rlim.rlim_cur = rlim.rlim_max = 32 << 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);

  if (unshare(CLONE_NEWNS)) {
  }
  if (unshare(CLONE_NEWIPC)) {
  }
  if (unshare(0x02000000)) {
  }
  if (unshare(CLONE_NEWUTS)) {
  }
  if (unshare(CLONE_SYSVSEM)) {
  }
}

static int do_sandbox_none(void)
{
  if (unshare(CLONE_NEWPID)) {
  }
  int pid = fork();
  if (pid < 0)
    fail("sandbox fork failed");
  if (pid)
    return pid;

  sandbox_common();
  if (unshare(CLONE_NEWNET)) {
  }

  loop();
  doexit(1);
}

uint64_t r[2] = {0xffffffffffffffff, 0x0};
void loop()
{
  long res = 0;
  *(uint32_t*)0x200029c0 = 0x80;
  syscall(__NR_getpeername, -1, 0x20002940, 0x200029c0);
  memcpy((void*)0x20000540, "/dev/dsp#", 10);
  res = syz_open_dev(0x20000540, 1, 2);
  if (res != -1)
    r[0] = res;
  *(uint64_t*)0x20000640 = 3;
  syscall(__NR_ioctl, r[0], 0x800000c004500a, 0x20000640);
  *(uint8_t*)0x20000380 = 0;
  syscall(__NR_setsockopt, -1, 0x84, 0x15, 0x20000380, 1);
  *(uint64_t*)0x20000a40 = 0x20000980;
  *(uint32_t*)0x20000980 = -1;
  *(uint32_t*)0x20000984 = -1;
  *(uint64_t*)0x20000988 = -1;
  *(uint32_t*)0x20000a48 = -1;
  *(uint64_t*)0x20000a4c = 0x20000c80;
  *(uint16_t*)0x20000c80 = -1;
  *(uint64_t*)0x20000c82 = 0;
  *(uint16_t*)0x20000c8a = -1;
  *(uint64_t*)0x20000a54 = 0;
  *(uint64_t*)0x20000a5c = 0;
  *(uint64_t*)0x20000a64 = -1;
  *(uint32_t*)0x20000a6c = -1;
  syscall(__NR_write, r[0], 0x20000a40, 0x30);
  syscall(__NR_semctl, 0, 0, 2, 0x20000280);
  *(uint16_t*)0x20000600 = 0x2c83;
  *(uint16_t*)0x20000602 = 0;
  *(uint16_t*)0x20000604 = 9;
  *(uint32_t*)0x20000608 = 6;
  *(uint32_t*)0x2000060c = 4;
  *(uint32_t*)0x20000610 = 0x3da;
  *(uint32_t*)0x20000614 = 0xfffffffc;
  *(uint32_t*)0x20000618 = 0xfffffffc;
  *(uint32_t*)0x2000061c = 0;
  *(uint32_t*)0x200007c0 = 0x20;
  res = syscall(__NR_getsockopt, -1, 0x84, 0xa, 0x20000600, 0x200007c0);
  if (res != -1)
    r[1] = *(uint32_t*)0x2000061c;
  *(uint16_t*)0x20000800 = 0x7fff;
  *(uint16_t*)0x20000802 = 0xa;
  *(uint32_t*)0x20000804 = 0xf33;
  *(uint32_t*)0x20000808 = 0xe51c;
  *(uint32_t*)0x2000080c = r[1];
  syscall(__NR_setsockopt, -1, 0x84, 0x22, 0x20000800, 0x10);
  memcpy((void*)0x20000000, "user.syz", 9);
  syscall(__NR_fremovexattr, -1, 0x20000000);
  *(uint64_t*)0x20000340 = 9;
  *(uint64_t*)0x20000348 = 0;
  syscall(__NR_ioctl, -1, 0xc010640c, 0x20000340);
  *(uint16_t*)0x20000740 = 0x26;
  memcpy((void*)0x20000742,
         "\x72\x6e\x67\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00", 14);
  *(uint32_t*)0x20000750 = 0;
  *(uint32_t*)0x20000754 = 0;
  memcpy((void*)0x20000758,
         "\x64\x72\x62\x67\x5f\x70\x72\x5f\x68\x6d\x61\x63\x5f\x73\x68\x61\x35"
         "\x31\x32\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
         64);
  syscall(__NR_connect, -1, 0x20000740, 0x80);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  int pid = do_sandbox_none();
  int status = 0;
  while (waitpid(pid, &status, __WALL) != pid) {
  }
  return 0;
}