// https://syzkaller.appspot.com/bug?id=1f4ddab55bcaf38ad92dc0291a878c7842f10eae
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#ifndef SYS___mount50
#define SYS___mount50 410
#endif
#ifndef SYS__lwp_create
#define SYS__lwp_create 309
#endif
#ifndef SYS_compat_40_mount
#define SYS_compat_40_mount 21
#endif
#ifndef SYS_mmap
#define SYS_mmap 197
#endif
#ifndef SYS_setsockopt
#define SYS_setsockopt 105
#endif

static unsigned long long procid;

static void kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

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 void execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      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;
    }
  }
}

void execute_one(void)
{
  memcpy((void*)0x20000180,
         "\x1f\x95\x70\xae\x4d\x44\xf7\x21\xc0\x83\xdc\x13\xc7\xc1\x6c\xba\x6b"
         "\x21\xd1\x48\x23\x65\x74\x5f\x3d\x71\x4c\x70\x95\x43\xeb\x28\x0e\x17"
         "\x42\x38\xee\x72\xf7\x9e\x21\x11\x39\x88\x9f\x05\xe2\x6a\x6f\x8c\x23"
         "\x2d\x34\xa9\x36\x57\x53\xbf\x81\xb5\xa9\xbf\x2b\x12\x48\x01\x04\x95"
         "\x49\x17\x3e\x23\xdd\x3c\x1d\x83\x71\xe6\x23\xc6\x88\xec\xeb\x8e\x13"
         "\x12\xf9\x2e\x7f\x4c\xf9\xe0\x8e\xc4\xe9\xe3\x86\x22\x97\x63\xc4\xfa"
         "\x3d\xd4\x1a\xc6\xb7\x61\x82\x92\x7e\xc7\x9b\x41\x6a\x2e\x08\x40\xbe"
         "\xff\xac\xc6\xfc\x97\x72\x4c\x4b\x41\xce\x76\xfb\x38\x12",
         133);
  syscall(SYS_setsockopt, /*fd=*/-1, /*level=*/3, /*optname=*/7,
          /*optval=*/0x20000180ul, /*optlen=*/0x85ul);
  memcpy((void*)0x20000380, "tmpfs\000", 6);
  memcpy((void*)0x200003c0, ".\000", 2);
  memset((void*)0x20000140, 1, 1);
  syscall(SYS_compat_40_mount, /*type=*/0x20000380ul, /*path=*/0x200003c0ul,
          /*flags=*/0ul, /*data=*/0x20000140ul);
  *(uint32_t*)0x20000100 = 0;
  *(uint64_t*)0x20000108 = 0;
  *(uint32_t*)0x20000110 = 0;
  *(uint32_t*)0x20000114 = 0;
  *(uint32_t*)0x20000118 = 0;
  *(uint32_t*)0x2000011c = 0;
  *(uint64_t*)0x20000120 = 0;
  *(uint64_t*)0x20000128 = 0;
  *(uint32_t*)0x20000130 = 0;
  *(uint64_t*)0x20000138 = 0;
  *(uint64_t*)0x20000140 = 0;
  memcpy((void*)0x20000148, "/)!/\000", 5);
  syscall(SYS__lwp_create, /*uc=*/0x20000100ul, /*flags=*/0ul, /*new_lwp=*/0ul);
  memcpy((void*)0x20000040, ".\000", 2);
  syscall(
      SYS___mount50, /*type=*/0ul, /*path=*/0x20000040ul,
      /*flags=MNT_QUOTA|MNT_EXNORESPORT|MNT_EXKERB|MNT_DEFEXPORTED|MNT_EXPORTED|MNT_EXRDONLY|0xe680bf986521807b*/
      0xe680bf986d21abfbul, /*data=*/0x20000140ul, /*len=*/0ul);
}
int main(void)
{
  syscall(SYS_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ*/ 3ul,
          /*flags=MAP_PRIVATE|MAP_FIXED|MAP_ANON*/ 0x1012ul, /*fd=*/-1,
          /*pad=*/0ul, /*offset=*/0ul);
  for (procid = 0; procid < 6; procid++) {
    if (fork() == 0) {
      loop();
    }
  }
  sleep(1000000);
  return 0;
}