// https://syzkaller.appspot.com/bug?id=779a64ccaefd969d5d9bc72a7c4fe39598d53884
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <dirent.h>
#include <endian.h>
#include <errno.h>
#include <fcntl.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/prctl.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

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;
}

#define BITMASK(bf_off, bf_len) (((1ull << (bf_len)) - 1) << (bf_off))
#define STORE_BY_BITMASK(type, htobe, addr, val, bf_off, bf_len)               \
  *(type*)(addr) =                                                             \
      htobe((htobe(*(type*)(addr)) & ~BITMASK((bf_off), (bf_len))) |           \
            (((type)(val) << (bf_off)) & BITMASK((bf_off), (bf_len))))

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) {
    int err = errno;
    close(fd);
    errno = err;
    return false;
  }
  close(fd);
  return true;
}

static void kill_and_wait(int pid, int* status)
{
  kill(-pid, SIGKILL);
  kill(pid, SIGKILL);
  for (int i = 0; i < 100; i++) {
    if (waitpid(-1, status, WNOHANG | __WALL) == pid)
      return;
    usleep(1000);
  }
  DIR* dir = opendir("/sys/fs/fuse/connections");
  if (dir) {
    for (;;) {
      struct dirent* ent = readdir(dir);
      if (!ent)
        break;
      if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
        continue;
      char abort[300];
      snprintf(abort, sizeof(abort), "/sys/fs/fuse/connections/%s/abort",
               ent->d_name);
      int fd = open(abort, O_WRONLY);
      if (fd == -1) {
        continue;
      }
      if (write(fd, abort, 1) < 0) {
      }
      close(fd);
    }
    closedir(dir);
  } else {
  }
  while (waitpid(-1, status, __WALL) != pid) {
  }
}

static void setup_test()
{
  prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
  setpgrp();
  write_file("/proc/self/oom_score_adj", "1000");
}

static void execute_one(void);

#define WAIT_FLAGS __WALL

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

uint64_t r[3] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(__NR_socket, 0xaul, 2ul, 0x88);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000bc0,
         "filter\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000",
         32);
  *(uint32_t*)0x20000be0 = 0xe;
  *(uint32_t*)0x20000be4 = 4;
  *(uint32_t*)0x20000be8 = 0x520;
  *(uint32_t*)0x20000bec = 0xd0;
  *(uint32_t*)0x20000bf0 = 0;
  *(uint32_t*)0x20000bf4 = 0x118;
  *(uint32_t*)0x20000bf8 = 0;
  *(uint32_t*)0x20000bfc = 0xd0;
  *(uint32_t*)0x20000c00 = 0x2c0;
  *(uint32_t*)0x20000c04 = 0x450;
  *(uint32_t*)0x20000c08 = 0x450;
  *(uint32_t*)0x20000c0c = 0x450;
  *(uint32_t*)0x20000c10 = 0x2c0;
  *(uint32_t*)0x20000c14 = 4;
  *(uint64_t*)0x20000c18 = 0;
  memset((void*)0x20000c20, 0, 136);
  *(uint32_t*)0x20000ca8 = 0;
  *(uint16_t*)0x20000cac = 0xd0;
  *(uint16_t*)0x20000cae = 0x118;
  *(uint32_t*)0x20000cb0 = 0;
  *(uint64_t*)0x20000cb8 = 0;
  *(uint64_t*)0x20000cc0 = 0;
  *(uint16_t*)0x20000cc8 = 0x28;
  memcpy((void*)0x20000cca,
         "hl\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000ce7 = 0;
  *(uint8_t*)0x20000ce8 = 0;
  *(uint8_t*)0x20000ce9 = 0;
  *(uint16_t*)0x20000cf0 = 0x48;
  memcpy((void*)0x20000cf2,
         "TEE\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000d0f = 1;
  *(uint64_t*)0x20000d10 = htobe64(0);
  *(uint64_t*)0x20000d18 = htobe64(1);
  memcpy((void*)0x20000d20, "veth1_to_hsr\000\000\000\000", 16);
  *(uint64_t*)0x20000d30 = 0;
  memset((void*)0x20000d38, 0, 136);
  *(uint32_t*)0x20000dc0 = 0;
  *(uint16_t*)0x20000dc4 = 0xd0;
  *(uint16_t*)0x20000dc6 = 0xf8;
  *(uint32_t*)0x20000dc8 = 0;
  *(uint64_t*)0x20000dd0 = 0;
  *(uint64_t*)0x20000dd8 = 0;
  *(uint16_t*)0x20000de0 = 0x28;
  memcpy((void*)0x20000de2,
         "hl\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000dff = 0;
  *(uint8_t*)0x20000e00 = 1;
  *(uint8_t*)0x20000e01 = 0;
  *(uint16_t*)0x20000e08 = 0x28;
  memcpy((void*)0x20000e0a,
         "REJECT\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000e27 = 0;
  *(uint32_t*)0x20000e28 = 0;
  *(uint8_t*)0x20000e30 = 0xfe;
  *(uint8_t*)0x20000e31 = 0x88;
  memset((void*)0x20000e32, 0, 12);
  *(uint8_t*)0x20000e3e = 0;
  *(uint8_t*)0x20000e3f = 1;
  *(uint8_t*)0x20000e40 = 0xfe;
  *(uint8_t*)0x20000e41 = 0x80;
  memset((void*)0x20000e42, 0, 13);
  *(uint8_t*)0x20000e4f = 0xbb;
  *(uint32_t*)0x20000e50 = htobe32(0);
  *(uint32_t*)0x20000e54 = htobe32(0);
  *(uint32_t*)0x20000e58 = htobe32(0);
  *(uint32_t*)0x20000e5c = htobe32(0);
  *(uint32_t*)0x20000e60 = htobe32(0);
  *(uint32_t*)0x20000e64 = htobe32(0);
  *(uint32_t*)0x20000e68 = htobe32(0);
  *(uint32_t*)0x20000e6c = htobe32(0);
  memcpy((void*)0x20000e70, "vcan0\000\000\000\000\000\000\000\000\000\000\000",
         16);
  memcpy((void*)0x20000e80, "veth0_virt_wifi\000", 16);
  *(uint8_t*)0x20000e90 = 0;
  *(uint8_t*)0x20000ea0 = 0;
  *(uint16_t*)0x20000eb0 = 0;
  *(uint8_t*)0x20000eb2 = 0;
  *(uint8_t*)0x20000eb3 = 0;
  *(uint8_t*)0x20000eb4 = 0;
  *(uint32_t*)0x20000eb8 = 0;
  *(uint16_t*)0x20000ebc = 0x200;
  *(uint16_t*)0x20000ebe = 0x240;
  *(uint32_t*)0x20000ec0 = 0;
  *(uint64_t*)0x20000ec8 = 0;
  *(uint64_t*)0x20000ed0 = 0;
  *(uint16_t*)0x20000ed8 = 0x158;
  memcpy((void*)0x20000eda,
         "hashlimit\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000",
         29);
  *(uint8_t*)0x20000ef7 = 3;
  memcpy(
      (void*)0x20000ef8,
      "bond_slave_"
      "1\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
      "\000\000\000\000\000\000\000\000\000\000",
      255);
  *(uint64_t*)0x20000ff8 = 0;
  *(uint64_t*)0x20001000 = 0xfffffffffffffffe;
  *(uint32_t*)0x20001008 = 0;
  *(uint32_t*)0x2000100c = 0;
  *(uint32_t*)0x20001010 = 0;
  *(uint32_t*)0x20001014 = 5;
  *(uint32_t*)0x20001018 = 0x88001;
  *(uint32_t*)0x2000101c = 0;
  *(uint8_t*)0x20001020 = 0;
  *(uint8_t*)0x20001021 = 0;
  *(uint64_t*)0x20001028 = 0;
  *(uint16_t*)0x20001030 = 0x40;
  memcpy((void*)0x20001032,
         "ERROR\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x2000104f = 0;
  memcpy((void*)0x20001050,
         "\x20\x17\x97\x05\xe5\x40\x2a\x1b\x2e\x9a\xe5\x3b\xfc\xc8\x5d\xc3\x29"
         "\x50\x5d\x2f\xda\x1a\x43\xa5\x70\x43\x8f\x34\xd2\x7f",
         30);
  memset((void*)0x20001070, 0, 136);
  *(uint32_t*)0x200010f8 = 0;
  *(uint16_t*)0x200010fc = 0xa8;
  *(uint16_t*)0x200010fe = 0xd0;
  *(uint32_t*)0x20001100 = 0;
  *(uint64_t*)0x20001108 = 0;
  *(uint64_t*)0x20001110 = 0;
  *(uint16_t*)0x20001118 = 0x28;
  memset((void*)0x2000111a, 0, 29);
  *(uint8_t*)0x20001137 = 0;
  *(uint32_t*)0x20001138 = 0xfffffffe;
  syscall(__NR_setsockopt, r[0], 0x29, 0x40, 0x20000bc0ul, 0x580ul);
  res = syscall(__NR_socket, 0xaul, 2ul, 0);
  if (res != -1)
    r[1] = res;
  *(uint8_t*)0x200000c0 = 0xfe;
  *(uint8_t*)0x200000c1 = 0x80;
  memset((void*)0x200000c2, 0, 13);
  *(uint8_t*)0x200000cf = 0xaa;
  *(uint32_t*)0x200000d0 = 0;
  *(uint32_t*)0x200000d4 = 0;
  syscall(__NR_ioctl, r[1], 0x89a1, 0x200000c0ul);
  *(uint8_t*)0x200005c0 = 0xfe;
  *(uint8_t*)0x200005c1 = 0x80;
  memset((void*)0x200005c2, 0, 13);
  *(uint8_t*)0x200005cf = 0xaa;
  *(uint8_t*)0x200005d0 = 0xfc;
  *(uint8_t*)0x200005d1 = 1;
  memset((void*)0x200005d2, 0, 13);
  *(uint8_t*)0x200005df = 0;
  *(uint8_t*)0x200005e0 = 0xfc;
  *(uint8_t*)0x200005e1 = 0;
  memset((void*)0x200005e2, 0, 13);
  *(uint8_t*)0x200005ef = 0;
  *(uint32_t*)0x200005f0 = 0;
  *(uint16_t*)0x200005f4 = 0;
  *(uint16_t*)0x200005f6 = 0;
  *(uint32_t*)0x200005f8 = 0;
  *(uint64_t*)0x20000600 = 0x8000000006;
  *(uint32_t*)0x20000608 = 0;
  *(uint32_t*)0x2000060c = 0;
  syscall(__NR_ioctl, r[1], 0x89a0, 0x200005c0ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x200016c0 = 0;
  *(uint32_t*)0x200016c8 = 0;
  *(uint64_t*)0x200016d0 = 0x20001680;
  *(uint64_t*)0x20001680 = 0x20001600;
  *(uint32_t*)0x20001600 = 0x2c;
  *(uint8_t*)0x20001604 = 0;
  *(uint8_t*)0x20001605 = 0xb;
  *(uint16_t*)0x20001606 = 0x401;
  *(uint32_t*)0x20001608 = 0;
  *(uint32_t*)0x2000160c = 0;
  *(uint8_t*)0x20001610 = 0xa;
  *(uint8_t*)0x20001611 = 0;
  *(uint16_t*)0x20001612 = htobe16(0);
  *(uint16_t*)0x20001614 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x20001616, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20001617, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20001617, 0, 7, 1);
  *(uint32_t*)0x20001618 = htobe32(0);
  *(uint16_t*)0x2000161c = 5;
  *(uint16_t*)0x2000161e = 1;
  memset((void*)0x20001620, 0, 1);
  *(uint16_t*)0x20001624 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x20001626, 3, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20001627, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20001627, 0, 7, 1);
  *(uint32_t*)0x20001628 = htobe32(0);
  *(uint64_t*)0x20001688 = 0x2c;
  *(uint64_t*)0x200016d8 = 1;
  *(uint64_t*)0x200016e0 = 0;
  *(uint64_t*)0x200016e8 = 0;
  *(uint32_t*)0x200016f0 = 0;
  syscall(__NR_sendmsg, r[2], 0x200016c0ul, 0ul);
}
int main(void)
{
  syscall(__NR_mmap, 0x1ffff000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x20000000ul, 0x1000000ul, 7ul, 0x32ul, -1, 0ul);
  syscall(__NR_mmap, 0x21000000ul, 0x1000ul, 0ul, 0x32ul, -1, 0ul);
  loop();
  return 0;
}