// https://syzkaller.appspot.com/bug?id=479d6cbadd1e0f9effe7ffaaf3ce63cc14459988
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <errno.h>
#include <pthread.h>
#include <setjmp.h>
#include <signal.h>
#include <signal.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/syscall.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

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

__attribute__((noreturn)) static void doexit(int status)
{
  volatile unsigned i;
  syscall(__NR_exit_group, status);
  for (i = 0;; i++) {
  }
}

__attribute__((noreturn)) static void fail(const char* msg, ...)
{
  int e = errno;
  fflush(stdout);
  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);
}

__attribute__((noreturn)) static void exitf(const char* msg, ...)
{
  int e = errno;
  fflush(stdout);
  va_list args;
  va_start(args, msg);
  vfprintf(stderr, msg, args);
  va_end(args);
  fprintf(stderr, " (errno %d)\n", e);
  doexit(kRetryStatus);
}

static __thread int skip_segv;
static __thread jmp_buf segv_env;

static void segv_handler(int sig, siginfo_t* info, void* uctx)
{
  uintptr_t addr = (uintptr_t)info->si_addr;
  const uintptr_t prog_start = 1 << 20;
  const uintptr_t prog_end = 100 << 20;
  if (__atomic_load_n(&skip_segv, __ATOMIC_RELAXED) &&
      (addr < prog_start || addr > prog_end)) {
    _longjmp(segv_env, 1);
  }
  doexit(sig);
  for (;;) {
  }
}

static void install_segv_handler()
{
  struct sigaction sa;

  memset(&sa, 0, sizeof(sa));
  sa.sa_handler = SIG_IGN;
  syscall(SYS_rt_sigaction, 0x20, &sa, NULL, 8);
  syscall(SYS_rt_sigaction, 0x21, &sa, NULL, 8);

  memset(&sa, 0, sizeof(sa));
  sa.sa_sigaction = segv_handler;
  sa.sa_flags = SA_NODEFER | SA_SIGINFO;
  sigaction(SIGSEGV, &sa, NULL);
  sigaction(SIGBUS, &sa, NULL);
}

#define NONFAILING(...)                                                \
  {                                                                    \
    __atomic_fetch_add(&skip_segv, 1, __ATOMIC_SEQ_CST);               \
    if (_setjmp(segv_env) == 0) {                                      \
      __VA_ARGS__;                                                     \
    }                                                                  \
    __atomic_fetch_sub(&skip_segv, 1, __ATOMIC_SEQ_CST);               \
  }

static uint64_t current_time_ms()
{
  struct timespec ts;

  if (clock_gettime(CLOCK_MONOTONIC, &ts))
    fail("clock_gettime failed");
  return (uint64_t)ts.tv_sec * 1000 + (uint64_t)ts.tv_nsec / 1000000;
}

static void test();

void loop()
{
  int iter;
  for (iter = 0;; iter++) {
    int pid = fork();
    if (pid < 0)
      fail("clone failed");
    if (pid == 0) {
      prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
      setpgrp();
      test();
      doexit(0);
    }
    int status = 0;
    uint64_t start = current_time_ms();
    for (;;) {
      int res = waitpid(-1, &status, __WALL | WNOHANG);
      if (res == pid)
        break;
      usleep(1000);
      if (current_time_ms() - start > 5 * 1000) {
        kill(-pid, SIGKILL);
        kill(pid, SIGKILL);
        while (waitpid(-1, &status, __WALL) != pid) {
        }
        break;
      }
    }
  }
}

long r[89];
void* thr(void* arg)
{
  switch ((long)arg) {
  case 0:
    NONFAILING(*(uint64_t*)0x20029000 = (uint64_t)0x20005000);
    NONFAILING(*(uint32_t*)0x20029008 = (uint32_t)0x8);
    NONFAILING(*(uint64_t*)0x20029010 = (uint64_t)0x20054000);
    NONFAILING(*(uint64_t*)0x20029018 = (uint64_t)0x1);
    NONFAILING(*(uint64_t*)0x20029020 = (uint64_t)0x20059000);
    NONFAILING(*(uint64_t*)0x20029028 = (uint64_t)0x6);
    NONFAILING(*(uint32_t*)0x20029030 = (uint32_t)0x0);
    NONFAILING(*(uint16_t*)0x20005000 = (uint16_t)0x0);
    NONFAILING(*(uint8_t*)0x20005002 = (uint8_t)0x0);
    NONFAILING(*(uint32_t*)0x20005004 = (uint32_t)0x4e20);
    NONFAILING(*(uint64_t*)0x20054000 = (uint64_t)0x20000000);
    NONFAILING(*(uint64_t*)0x20054008 = (uint64_t)0x0);
    NONFAILING(*(uint64_t*)0x20059000 = (uint64_t)0x10);
    NONFAILING(*(uint32_t*)0x20059008 = (uint32_t)0x11f);
    NONFAILING(*(uint32_t*)0x2005900c = (uint32_t)0x8);
    NONFAILING(*(uint64_t*)0x20059010 = (uint64_t)0x10);
    NONFAILING(*(uint32_t*)0x20059018 = (uint32_t)0x11f);
    NONFAILING(*(uint32_t*)0x2005901c = (uint32_t)0x5);
    NONFAILING(*(uint64_t*)0x20059020 = (uint64_t)0x10);
    NONFAILING(*(uint32_t*)0x20059028 = (uint32_t)0x111);
    NONFAILING(*(uint32_t*)0x2005902c = (uint32_t)0x0);
    NONFAILING(*(uint64_t*)0x20059030 = (uint64_t)0x10);
    NONFAILING(*(uint32_t*)0x20059038 = (uint32_t)0x119);
    NONFAILING(*(uint32_t*)0x2005903c = (uint32_t)0x8);
    NONFAILING(*(uint64_t*)0x20059040 = (uint64_t)0x10);
    NONFAILING(*(uint32_t*)0x20059048 = (uint32_t)0x11);
    NONFAILING(*(uint32_t*)0x2005904c = (uint32_t)0x9);
    NONFAILING(*(uint64_t*)0x20059050 = (uint64_t)0x10);
    NONFAILING(*(uint32_t*)0x20059058 = (uint32_t)0x88);
    NONFAILING(*(uint32_t*)0x2005905c = (uint32_t)0x80000001);
    r[30] = syscall(__NR_sendmsg, 0xfffffffffffffffful, 0x20029000ul,
                    0x2ul);
    break;
  case 1:
    r[31] = syscall(__NR_socket, 0x2ul, 0x1ul, 0x0ul);
    break;
  case 2:
    NONFAILING(*(uint16_t*)0x2005aff0 = (uint16_t)0x2);
    NONFAILING(*(uint16_t*)0x2005aff2 = (uint16_t)0x204e);
    NONFAILING(*(uint32_t*)0x2005aff4 = (uint32_t)0x0);
    NONFAILING(*(uint8_t*)0x2005aff8 = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2005aff9 = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2005affa = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2005affb = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2005affc = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2005affd = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2005affe = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2005afff = (uint8_t)0x0);
    r[43] = syscall(__NR_bind, r[31], 0x2005aff0ul, 0x10ul);
    break;
  case 3:
    r[44] = syscall(__NR_socket, 0xaul, 0x1ul, 0x0ul);
    break;
  case 4:
    r[45] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul,
                    0xfffffffffffffffful, 0x0ul);
    break;
  case 5:
    NONFAILING(*(uint32_t*)0x20940000 = (uint32_t)0x2);
    NONFAILING(*(uint32_t*)0x20940004 = (uint32_t)0x78);
    NONFAILING(*(uint8_t*)0x20940008 = (uint8_t)0xfffffffffffffffb);
    NONFAILING(*(uint8_t*)0x20940009 = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2094000a = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2094000b = (uint8_t)0x0);
    NONFAILING(*(uint32_t*)0x2094000c = (uint32_t)0x0);
    NONFAILING(*(uint64_t*)0x20940010 = (uint64_t)0x0);
    NONFAILING(*(uint64_t*)0x20940018 = (uint64_t)0x0);
    NONFAILING(*(uint64_t*)0x20940020 = (uint64_t)0x0);
    NONFAILING(*(uint8_t*)0x20940028 = (uint8_t)0xfe);
    NONFAILING(*(uint8_t*)0x20940029 = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2094002a = (uint8_t)0x0);
    NONFAILING(*(uint8_t*)0x2094002b = (uint8_t)0x0);
    NONFAILING(*(uint32_t*)0x2094002c = (uint32_t)0x0);
    NONFAILING(*(uint32_t*)0x20940030 = (uint32_t)0x0);
    NONFAILING(*(uint32_t*)0x20940034 = (uint32_t)0x0);
    NONFAILING(*(uint64_t*)0x20940038 = (uint64_t)0x0);
    NONFAILING(*(uint64_t*)0x20940040 = (uint64_t)0x0);
    NONFAILING(*(uint64_t*)0x20940048 = (uint64_t)0x0);
    NONFAILING(*(uint64_t*)0x20940050 = (uint64_t)0x0);
    NONFAILING(*(uint64_t*)0x20940058 = (uint64_t)0x0);
    NONFAILING(*(uint32_t*)0x20940060 = (uint32_t)0x0);
    NONFAILING(*(uint64_t*)0x20940068 = (uint64_t)0x0);
    NONFAILING(*(uint32_t*)0x20940070 = (uint32_t)0x0);
    NONFAILING(*(uint16_t*)0x20940074 = (uint16_t)0x0);
    NONFAILING(*(uint16_t*)0x20940076 = (uint16_t)0x0);
    r[73] = syscall(__NR_perf_event_open, 0x20940000ul, 0x0ul,
                    0xfffffffffffffffful, 0xfffffffffffffffful, 0x0ul);
    break;
  case 6:
    NONFAILING(memcpy((void*)0x2000dff6,
                      "\x2e\x2f\x63\x6f\x6e\x74\x72\x6f\x6c\x00", 10));
    r[75] = syscall(__NR_mkdir, 0x2000dff6ul, 0x0ul);
    break;
  case 7:
    r[76] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul,
                    0xfffffffffffffffful, 0x0ul);
    break;
  case 8:
    NONFAILING(*(uint32_t*)0x20001000 = (uint32_t)0x10000);
    NONFAILING(*(uint32_t*)0x20001004 = (uint32_t)0xc000800000000001);
    NONFAILING(*(uint32_t*)0x20001008 = (uint32_t)0x10000);
    NONFAILING(*(uint32_t*)0x2000100c = (uint32_t)0x1);
    r[81] = syscall(__NR_setsockopt, 0xfffffffffffffffful, 0x84ul,
                    0x0ul, 0x20001000ul, 0x10ul);
    break;
  case 9:
    r[82] = syscall(__NR_getrlimit, 0xbul, 0x203d3ff0ul);
    break;
  case 10:
    r[83] = syscall(__NR_socket, 0x11ul, 0x80003ul, 0x8ul);
    break;
  case 11:
    NONFAILING(*(uint16_t*)0x208e3000 = (uint16_t)0x0);
    NONFAILING(*(uint8_t*)0x208e3002 = (uint8_t)0x4);
    NONFAILING(*(uint8_t*)0x208e3003 = (uint8_t)0x8ffd);
    r[87] = syscall(__NR_setsockopt, r[83], 0x107ul, 0x12ul,
                    0x208e3000ul, 0x4ul);
    break;
  case 12:
    r[88] = syscall(__NR_setsockopt, r[83], 0x107ul, 0x5ul,
                    0x20001000ul, 0x47eul);
    break;
  }
  return 0;
}

void test()
{
  long i;
  pthread_t th[26];

  memset(r, -1, sizeof(r));
  for (i = 0; i < 13; i++) {
    pthread_create(&th[i], 0, thr, (void*)i);
    usleep(rand() % 10000);
  }
  usleep(rand() % 100000);
}

int main()
{
  int i;
  for (i = 0; i < 8; i++) {
    if (fork() == 0) {
      install_segv_handler();
      loop();
      return 0;
    }
  }
  sleep(1000000);
  return 0;
}