// 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[2] = {0xffffffffffffffff, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  res = syscall(__NR_socket, 2ul, 2ul, 0);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000300,
         "raw\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",
         32);
  *(uint32_t*)0x20000320 = 9;
  *(uint32_t*)0x20000324 = 3;
  *(uint32_t*)0x20000328 = 0x218;
  *(uint32_t*)0x2000032c = 0xf0;
  *(uint32_t*)0x20000330 = -1;
  *(uint32_t*)0x20000334 = -1;
  *(uint32_t*)0x20000338 = 0xf0;
  *(uint32_t*)0x2000033c = -1;
  *(uint32_t*)0x20000340 = 0x180;
  *(uint32_t*)0x20000344 = -1;
  *(uint32_t*)0x20000348 = -1;
  *(uint32_t*)0x2000034c = 0x180;
  *(uint32_t*)0x20000350 = -1;
  *(uint32_t*)0x20000354 = 3;
  *(uint64_t*)0x20000358 = 0;
  *(uint32_t*)0x20000360 = htobe32(0x7f000001);
  *(uint8_t*)0x20000364 = 0xac;
  *(uint8_t*)0x20000365 = 0x1e;
  *(uint8_t*)0x20000366 = 0;
  *(uint8_t*)0x20000367 = 1;
  *(uint32_t*)0x20000368 = htobe32(0);
  *(uint32_t*)0x2000036c = htobe32(0);
  memcpy((void*)0x20000370,
         "wg2\000\000\000\000\000\000\000\000\000\000\000\000\000", 16);
  memcpy((void*)0x20000380,
         "hsr0\000\000\000\000\000\000\000\000\000\000\000\000", 16);
  *(uint8_t*)0x20000390 = 0;
  *(uint8_t*)0x200003a0 = 0;
  *(uint16_t*)0x200003b0 = 0;
  *(uint8_t*)0x200003b2 = 0;
  *(uint8_t*)0x200003b3 = 0;
  *(uint32_t*)0x200003b4 = 0;
  *(uint16_t*)0x200003b8 = 0xa8;
  *(uint16_t*)0x200003ba = 0xf0;
  *(uint32_t*)0x200003bc = 0;
  *(uint64_t*)0x200003c0 = 0;
  *(uint64_t*)0x200003c8 = 0;
  *(uint16_t*)0x200003d0 = 0x38;
  memcpy((void*)0x200003d2,
         "devgroup\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000"
         "\000\000\000\000\000\000",
         29);
  *(uint8_t*)0x200003ef = 0;
  *(uint32_t*)0x200003f0 = 5;
  *(uint32_t*)0x200003f4 = 0;
  *(uint32_t*)0x200003f8 = 0;
  *(uint32_t*)0x200003fc = 0;
  *(uint32_t*)0x20000400 = 0;
  *(uint16_t*)0x20000408 = 0x48;
  memcpy((void*)0x2000040a,
         "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*)0x20000427 = 1;
  *(uint8_t*)0x20000428 = 0xfc;
  *(uint8_t*)0x20000429 = 2;
  *(uint8_t*)0x2000042a = 0;
  *(uint8_t*)0x2000042b = 0;
  *(uint8_t*)0x2000042c = 0;
  *(uint8_t*)0x2000042d = 0;
  *(uint8_t*)0x2000042e = 0;
  *(uint8_t*)0x2000042f = 0;
  *(uint8_t*)0x20000430 = 0;
  *(uint8_t*)0x20000431 = 0;
  *(uint8_t*)0x20000432 = 0;
  *(uint8_t*)0x20000433 = 0;
  *(uint8_t*)0x20000434 = 0;
  *(uint8_t*)0x20000435 = 0;
  *(uint8_t*)0x20000436 = 0;
  *(uint8_t*)0x20000437 = 0;
  memcpy((void*)0x20000438, "team_slave_1\000\000\000\000", 16);
  *(uint64_t*)0x20000448 = 0;
  *(uint8_t*)0x20000450 = 0xac;
  *(uint8_t*)0x20000451 = 0x1e;
  *(uint8_t*)0x20000452 = 0;
  *(uint8_t*)0x20000453 = 1;
  *(uint32_t*)0x20000454 = htobe32(0);
  *(uint32_t*)0x20000458 = htobe32(0);
  *(uint32_t*)0x2000045c = htobe32(0);
  memcpy((void*)0x20000460, "veth1_macvtap\000\000\000", 16);
  memcpy((void*)0x20000470,
         "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000",
         16);
  *(uint8_t*)0x20000480 = 0;
  *(uint8_t*)0x20000490 = 0;
  *(uint16_t*)0x200004a0 = 0;
  *(uint8_t*)0x200004a2 = 0;
  *(uint8_t*)0x200004a3 = 0;
  *(uint32_t*)0x200004a4 = 0;
  *(uint16_t*)0x200004a8 = 0x70;
  *(uint16_t*)0x200004aa = 0x90;
  *(uint32_t*)0x200004ac = 0;
  *(uint64_t*)0x200004b0 = 0;
  *(uint64_t*)0x200004b8 = 0;
  *(uint16_t*)0x200004c0 = 0x20;
  memcpy((void*)0x200004c2,
         "NOTRACK\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*)0x200004df = 0;
  *(uint8_t*)0x200004e0 = 0;
  *(uint8_t*)0x200004e1 = 0;
  *(uint8_t*)0x200004e2 = 0;
  *(uint8_t*)0x200004e3 = 0;
  *(uint8_t*)0x200004e4 = 0;
  *(uint8_t*)0x200004e5 = 0;
  *(uint8_t*)0x200004e6 = 0;
  *(uint8_t*)0x200004e7 = 0;
  *(uint8_t*)0x200004e8 = 0;
  *(uint8_t*)0x200004e9 = 0;
  *(uint8_t*)0x200004ea = 0;
  *(uint8_t*)0x200004eb = 0;
  *(uint8_t*)0x200004ec = 0;
  *(uint8_t*)0x200004ed = 0;
  *(uint8_t*)0x200004ee = 0;
  *(uint8_t*)0x200004ef = 0;
  *(uint8_t*)0x200004f0 = 0;
  *(uint8_t*)0x200004f1 = 0;
  *(uint8_t*)0x200004f2 = 0;
  *(uint8_t*)0x200004f3 = 0;
  *(uint8_t*)0x200004f4 = 0;
  *(uint8_t*)0x200004f5 = 0;
  *(uint8_t*)0x200004f6 = 0;
  *(uint8_t*)0x200004f7 = 0;
  *(uint8_t*)0x200004f8 = 0;
  *(uint8_t*)0x200004f9 = 0;
  *(uint8_t*)0x200004fa = 0;
  *(uint8_t*)0x200004fb = 0;
  *(uint8_t*)0x200004fc = 0;
  *(uint8_t*)0x200004fd = 0;
  *(uint8_t*)0x200004fe = 0;
  *(uint8_t*)0x200004ff = 0;
  *(uint8_t*)0x20000500 = 0;
  *(uint8_t*)0x20000501 = 0;
  *(uint8_t*)0x20000502 = 0;
  *(uint8_t*)0x20000503 = 0;
  *(uint8_t*)0x20000504 = 0;
  *(uint8_t*)0x20000505 = 0;
  *(uint8_t*)0x20000506 = 0;
  *(uint8_t*)0x20000507 = 0;
  *(uint8_t*)0x20000508 = 0;
  *(uint8_t*)0x20000509 = 0;
  *(uint8_t*)0x2000050a = 0;
  *(uint8_t*)0x2000050b = 0;
  *(uint8_t*)0x2000050c = 0;
  *(uint8_t*)0x2000050d = 0;
  *(uint8_t*)0x2000050e = 0;
  *(uint8_t*)0x2000050f = 0;
  *(uint8_t*)0x20000510 = 0;
  *(uint8_t*)0x20000511 = 0;
  *(uint8_t*)0x20000512 = 0;
  *(uint8_t*)0x20000513 = 0;
  *(uint8_t*)0x20000514 = 0;
  *(uint8_t*)0x20000515 = 0;
  *(uint8_t*)0x20000516 = 0;
  *(uint8_t*)0x20000517 = 0;
  *(uint8_t*)0x20000518 = 0;
  *(uint8_t*)0x20000519 = 0;
  *(uint8_t*)0x2000051a = 0;
  *(uint8_t*)0x2000051b = 0;
  *(uint8_t*)0x2000051c = 0;
  *(uint8_t*)0x2000051d = 0;
  *(uint8_t*)0x2000051e = 0;
  *(uint8_t*)0x2000051f = 0;
  *(uint8_t*)0x20000520 = 0;
  *(uint8_t*)0x20000521 = 0;
  *(uint8_t*)0x20000522 = 0;
  *(uint8_t*)0x20000523 = 0;
  *(uint8_t*)0x20000524 = 0;
  *(uint8_t*)0x20000525 = 0;
  *(uint8_t*)0x20000526 = 0;
  *(uint8_t*)0x20000527 = 0;
  *(uint8_t*)0x20000528 = 0;
  *(uint8_t*)0x20000529 = 0;
  *(uint8_t*)0x2000052a = 0;
  *(uint8_t*)0x2000052b = 0;
  *(uint8_t*)0x2000052c = 0;
  *(uint8_t*)0x2000052d = 0;
  *(uint8_t*)0x2000052e = 0;
  *(uint8_t*)0x2000052f = 0;
  *(uint8_t*)0x20000530 = 0;
  *(uint8_t*)0x20000531 = 0;
  *(uint8_t*)0x20000532 = 0;
  *(uint8_t*)0x20000533 = 0;
  *(uint32_t*)0x20000534 = 0;
  *(uint16_t*)0x20000538 = 0x70;
  *(uint16_t*)0x2000053a = 0x98;
  *(uint32_t*)0x2000053c = 0;
  *(uint64_t*)0x20000540 = 0;
  *(uint64_t*)0x20000548 = 0;
  *(uint16_t*)0x20000550 = 0x28;
  memcpy((void*)0x20000552,
         "\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",
         29);
  *(uint8_t*)0x2000056f = 0;
  *(uint32_t*)0x20000570 = 0xfffffffe;
  syscall(__NR_setsockopt, r[0], 0, 0x40, 0x20000300ul, 0x278ul);
  syscall(__NR_unshare, 0x40000000ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
  if (res != -1)
    r[1] = res;
  *(uint64_t*)0x20000180 = 0;
  *(uint32_t*)0x20000188 = 0;
  *(uint64_t*)0x20000190 = 0x20000040;
  *(uint64_t*)0x20000040 = 0x20000100;
  *(uint32_t*)0x20000100 = 0x2c;
  *(uint8_t*)0x20000104 = 0;
  *(uint8_t*)0x20000105 = 0xb;
  *(uint16_t*)0x20000106 = 3;
  *(uint32_t*)0x20000108 = 0;
  *(uint32_t*)0x2000010c = 0;
  *(uint8_t*)0x20000110 = 3;
  *(uint8_t*)0x20000111 = 0;
  *(uint16_t*)0x20000112 = htobe16(0);
  *(uint16_t*)0x20000114 = 5;
  *(uint16_t*)0x20000116 = 1;
  memcpy((void*)0x20000118, "\000", 1);
  *(uint16_t*)0x2000011c = 8;
  STORE_BY_BITMASK(uint16_t, , 0x2000011e, 3, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000011f, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000011f, 0, 7, 1);
  *(uint32_t*)0x20000120 = htobe32(1);
  *(uint16_t*)0x20000124 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x20000126, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000127, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000127, 0, 7, 1);
  *(uint32_t*)0x20000128 = htobe32(4);
  *(uint64_t*)0x20000048 = 0x2c;
  *(uint64_t*)0x20000198 = 1;
  *(uint64_t*)0x200001a0 = 0;
  *(uint64_t*)0x200001a8 = 0;
  *(uint32_t*)0x200001b0 = 0;
  syscall(__NR_sendmsg, r[1], 0x20000180ul, 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;
}