// https://syzkaller.appspot.com/bug?id=e6d1ed219bd92dd9b3e653eda032852996a9b457
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE
#include <endian.h>
#include <fcntl.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <unistd.h>

static uintptr_t syz_open_procfs(uintptr_t a0, uintptr_t a1)
{

  char buf[128];
  memset(buf, 0, sizeof(buf));
  if (a0 == 0) {
    snprintf(buf, sizeof(buf), "/proc/self/%s", (char*)a1);
  } else if (a0 == (uintptr_t)-1) {
    snprintf(buf, sizeof(buf), "/proc/thread-self/%s", (char*)a1);
  } else {
    snprintf(buf, sizeof(buf), "/proc/self/task/%d/%s", (int)a0, (char*)a1);
  }
  int fd = open(buf, O_RDWR);
  if (fd == -1)
    fd = open(buf, O_RDONLY);
  return fd;
}

static void execute_one();
extern unsigned long long procid;

void loop()
{
  while (1) {
    execute_one();
  }
}

void execute_one()
{
  syscall(__NR_sysinfo, 0x200014c0);
  memcpy((void*)0x20000140, "./file0", 8);
  syscall(__NR_open, 0x20000140, 0xa002, 0x20);
  syscall(__NR_mmap, 0x20000000, 0x7fffdffff000, 0, 0x31, -1, 0);
  syscall(__NR_socketpair, 8, 2, 0xb1, 0x20000000);
  syscall(__NR_epoll_create, 4);
  syscall(__NR_epoll_create1, 0x80000);
  memcpy((void*)0x20001c40, "/dev/full", 10);
  syscall(__NR_openat, 0xffffffffffffff9c, 0x20001c40, 1, 0);
  memcpy((void*)0x20001d40, "ns/net", 7);
  syz_open_procfs(0, 0x20001d40);
  memcpy((void*)0x20001ec0, "./file0", 8);
  syscall(__NR_openat, 0xffffffffffffff9c, 0x20001ec0, 0x4000, 0x102);
  memcpy((void*)0x200002c0, "user", 5);
  *(uint8_t*)0x20000300 = 0x73;
  *(uint8_t*)0x20000301 = 0x79;
  *(uint8_t*)0x20000302 = 0x7a;
  *(uint8_t*)0x20000303 = 0x23;
  *(uint8_t*)0x20000304 = 0;
  syscall(__NR_add_key, 0x200002c0, 0x20000300, 0x20000340, 0, 0xfffffffa);
}

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