// https://syzkaller.appspot.com/bug?id=3e99f9b4ca4807bb541159f3cd1c0776f6598ee8
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <sys/syscall.h>
#include <unistd.h>

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

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);
}

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);                       \
  }

uint64_t r[2] = {0xffffffffffffffff, 0xffffffffffffffff};
void loop()
{
  long res = 0;
  res = syscall(__NR_socket, 0x26, 5, 0);
  if (res != -1)
    r[0] = res;
  NONFAILING(*(uint16_t*)0x20000080 = 0x26);
  NONFAILING(memcpy((void*)0x20000082,
                    "\x68\x61\x73\x68\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00",
                    14));
  NONFAILING(*(uint32_t*)0x20000090 = 0);
  NONFAILING(*(uint32_t*)0x20000094 = 0);
  NONFAILING(memcpy((void*)0x20000098,
                    "\x63\x72\x79\x70\x74\x64\x28\x73\x68\x61\x33\x2d\x33\x38"
                    "\x34\x2d\x67\x65\x6e\x65\x72\x69\x63\x29\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_bind, r[0], 0x20000080, 0x58);
  res = syscall(__NR_accept, r[0], 0, 0);
  if (res != -1)
    r[1] = res;
  NONFAILING(*(uint64_t*)0x20000f40 = 0);
  NONFAILING(*(uint32_t*)0x20000f48 = 0);
  NONFAILING(*(uint64_t*)0x20000f50 = 0x20000640);
  NONFAILING(*(uint64_t*)0x20000f58 = 0x107);
  NONFAILING(*(uint64_t*)0x20000f60 = 0x20000680);
  NONFAILING(*(uint64_t*)0x20000f68 = 0x66);
  NONFAILING(*(uint32_t*)0x20000f70 = 0);
  syscall(__NR_sendmmsg, r[1], 0x20000f40, 0xc95d03eb8aea92df, 0);
}

int main()
{
  syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
  install_segv_handler();
  loop();
  return 0;
}