// https://syzkaller.appspot.com/bug?id=abb6cc54bd2802dfdeb0978f7adf870325b80f92
// autogenerated by syzkaller (http://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <errno.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdio.h>
#include <sys/stat.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 <stdint.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 bool write_file(const char* file, const char* what, ...)
{
  char buf[1024];
  va_list args;
  va_start(args, what);
  vsnprintf(buf, sizeof(buf), what, args);
  va_end(args);
  buf[sizeof(buf) - 1] = 0;
  int len = strlen(buf);

  int fd = open(file, O_WRONLY | O_CLOEXEC);
  if (fd == -1)
    return false;
  if (write(fd, buf, len) != len) {
    close(fd);
    return false;
  }
  close(fd);
  return true;
}

static int inject_fault(int nth)
{
  int fd;
  char buf[16];

  fd = open("/proc/thread-self/fail-nth", O_RDWR);
  if (fd == -1)
    fail("failed to open /proc/thread-self/fail-nth");
  sprintf(buf, "%d", nth + 1);
  if (write(fd, buf, strlen(buf)) != (ssize_t)strlen(buf))
    fail("failed to write /proc/thread-self/fail-nth");
  return fd;
}

static void test();

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

long r[91];
void test()
{
  memset(r, -1, sizeof(r));
  r[0] = syscall(__NR_mmap, 0x20000000ul, 0xfff000ul, 0x3ul, 0x32ul,
                 0xfffffffffffffffful, 0x0ul);
  r[1] = syscall(__NR_socket, 0x26ul, 0x5ul, 0x0ul);
  r[2] = syscall(__NR_socket, 0x26ul, 0x5ul, 0x0ul);
  *(uint16_t*)0x20421fa8 = (uint16_t)0x26;
  memcpy((void*)0x20421faa,
         "\x73\x6b\x63\x69\x70\x68\x65\x72\x00\x00\x00\x00\x00\x00",
         14);
  *(uint32_t*)0x20421fb8 = (uint32_t)0x0;
  *(uint32_t*)0x20421fbc = (uint32_t)0x0;
  memcpy((void*)0x20421fc0,
         "\x63\x62\x63\x28\x61\x72\x63\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\x00\x00\x00"
         "\x00\x00\x00\x00",
         64);
  r[8] = syscall(__NR_bind, r[1], 0x20421fa8ul, 0x58ul);
  memcpy((void*)0x205fffe8, "\xad", 1);
  r[10] = syscall(__NR_setsockopt, r[1], 0x117ul, 0x1ul, 0x205fffe8ul,
                  0x1ul);
  r[11] = syscall(__NR_accept, r[1], 0x0ul, 0x0ul);
  *(uint64_t*)0x20e7bf58 = (uint64_t)0x0;
  *(uint32_t*)0x20e7bf60 = (uint32_t)0x0;
  *(uint64_t*)0x20e7bf68 = (uint64_t)0x205b1000;
  *(uint64_t*)0x20e7bf70 = (uint64_t)0x1;
  *(uint64_t*)0x20e7bf78 = (uint64_t)0x20460fe8;
  *(uint64_t*)0x20e7bf80 = (uint64_t)0x0;
  *(uint32_t*)0x20e7bf88 = (uint32_t)0x20004001;
  *(uint64_t*)0x20e7bf90 = (uint64_t)0x0;
  *(uint32_t*)0x20e7bf98 = (uint32_t)0x0;
  *(uint64_t*)0x20e7bfa0 = (uint64_t)0x20150000;
  *(uint64_t*)0x20e7bfa8 = (uint64_t)0x5;
  *(uint64_t*)0x20e7bfb0 = (uint64_t)0x20761000;
  *(uint64_t*)0x20e7bfb8 = (uint64_t)0x0;
  *(uint32_t*)0x20e7bfc0 = (uint32_t)0x0;
  *(uint64_t*)0x20e7bfc8 = (uint64_t)0x0;
  *(uint32_t*)0x20e7bfd0 = (uint32_t)0x0;
  *(uint64_t*)0x20e7bfd8 = (uint64_t)0x207d8000;
  *(uint64_t*)0x20e7bfe0 = (uint64_t)0x4;
  *(uint64_t*)0x20e7bfe8 = (uint64_t)0x209a8000;
  *(uint64_t*)0x20e7bff0 = (uint64_t)0x90;
  *(uint32_t*)0x20e7bff8 = (uint32_t)0x0;
  *(uint64_t*)0x205b1000 = (uint64_t)0x20245fd3;
  *(uint64_t*)0x205b1008 = (uint64_t)0x2;
  memcpy((void*)0x20245fd3, "\x08\xec", 2);
  *(uint64_t*)0x20150000 = (uint64_t)0x20ccb000;
  *(uint64_t*)0x20150008 = (uint64_t)0x0;
  *(uint64_t*)0x20150010 = (uint64_t)0x20d93000;
  *(uint64_t*)0x20150018 = (uint64_t)0x0;
  *(uint64_t*)0x20150020 = (uint64_t)0x203c2000;
  *(uint64_t*)0x20150028 = (uint64_t)0x0;
  *(uint64_t*)0x20150030 = (uint64_t)0x20c58000;
  *(uint64_t*)0x20150038 = (uint64_t)0x0;
  *(uint64_t*)0x20150040 = (uint64_t)0x20cbcf19;
  *(uint64_t*)0x20150048 = (uint64_t)0x0;
  *(uint64_t*)0x207d8000 = (uint64_t)0x20a66000;
  *(uint64_t*)0x207d8008 = (uint64_t)0x0;
  *(uint64_t*)0x207d8010 = (uint64_t)0x206e2000;
  *(uint64_t*)0x207d8018 = (uint64_t)0x0;
  *(uint64_t*)0x207d8020 = (uint64_t)0x208ca000;
  *(uint64_t*)0x207d8028 = (uint64_t)0x0;
  *(uint64_t*)0x207d8030 = (uint64_t)0x20d1efdf;
  *(uint64_t*)0x207d8038 = (uint64_t)0x0;
  *(uint64_t*)0x209a8000 = (uint64_t)0x18;
  *(uint32_t*)0x209a8008 = (uint32_t)0x117;
  *(uint32_t*)0x209a800c = (uint32_t)0x4;
  *(uint32_t*)0x209a8010 = (uint32_t)0x3;
  *(uint64_t*)0x209a8018 = (uint64_t)0x18;
  *(uint32_t*)0x209a8020 = (uint32_t)0x117;
  *(uint32_t*)0x209a8024 = (uint32_t)0x3;
  *(uint32_t*)0x209a8028 = (uint32_t)0x0;
  *(uint64_t*)0x209a8030 = (uint64_t)0x18;
  *(uint32_t*)0x209a8038 = (uint32_t)0x117;
  *(uint32_t*)0x209a803c = (uint32_t)0x4;
  *(uint32_t*)0x209a8040 = (uint32_t)0x1;
  *(uint64_t*)0x209a8048 = (uint64_t)0x18;
  *(uint32_t*)0x209a8050 = (uint32_t)0x117;
  *(uint32_t*)0x209a8054 = (uint32_t)0x4;
  *(uint32_t*)0x209a8058 = (uint32_t)0x5;
  *(uint64_t*)0x209a8060 = (uint64_t)0x18;
  *(uint32_t*)0x209a8068 = (uint32_t)0x117;
  *(uint32_t*)0x209a806c = (uint32_t)0x4;
  *(uint32_t*)0x209a8070 = (uint32_t)0x1;
  *(uint64_t*)0x209a8078 = (uint64_t)0x18;
  *(uint32_t*)0x209a8080 = (uint32_t)0x117;
  *(uint32_t*)0x209a8084 = (uint32_t)0x3;
  *(uint32_t*)0x209a8088 = (uint32_t)0x0;
  r[78] = syscall(__NR_sendmmsg, r[11], 0x20e7bf58ul, 0x3ul, 0x4000ul);
  *(uint64_t*)0x20b2f000 = (uint64_t)0x208e8000;
  *(uint32_t*)0x20b2f008 = (uint32_t)0x10;
  *(uint64_t*)0x20b2f010 = (uint64_t)0x20030fa0;
  *(uint64_t*)0x20b2f018 = (uint64_t)0x2;
  *(uint64_t*)0x20b2f020 = (uint64_t)0x20590000;
  *(uint64_t*)0x20b2f028 = (uint64_t)0x0;
  *(uint32_t*)0x20b2f030 = (uint32_t)0x36d;
  *(uint64_t*)0x20030fa0 = (uint64_t)0x2039d000;
  *(uint64_t*)0x20030fa8 = (uint64_t)0x0;
  *(uint64_t*)0x20030fb0 = (uint64_t)0x200cd000;
  *(uint64_t*)0x20030fb8 = (uint64_t)0x1a;
  write_file("/sys/kernel/debug/failslab/ignore-gfp-wait", "N");
  write_file("/sys/kernel/debug/fail_futex/ignore-private", "N");
  inject_fault(2);
  r[90] = syscall(__NR_recvmsg, r[11], 0x20b2f000ul, 0x40ul);
}

int main()
{
  loop();
  return 0;
}