// https://syzkaller.appspot.com/bug?id=ce1408fa72a7f261ca0d308a7e783a51f9de3cb2
// 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 (;;) {
      sleep_ms(10);
      if (waitpid(-1, &status, WNOHANG | WAIT_FLAGS) == pid)
        break;
      if (current_time_ms() - start < 5000)
        continue;
      kill_and_wait(pid, &status);
      break;
    }
  }
}

uint64_t r[3] = {0xffffffffffffffff, 0x0, 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=SOCK_RAW*/ 3ul,
                /*proto=*/0);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x200000000300,
         "bond0\000\000\000\000\000\000\000\000\000\000\000", 16);
  res = syscall(__NR_ioctl, /*fd=*/r[0], /*cmd=*/0x8933,
                /*arg=*/0x200000000300ul);
  if (res != -1)
    r[1] = *(uint32_t*)0x200000000310;
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/0);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x2000000007c0 = 0;
  *(uint32_t*)0x2000000007c8 = 0;
  *(uint64_t*)0x2000000007d0 = 0x200000000780;
  *(uint64_t*)0x200000000780 = 0x200000000340;
  *(uint32_t*)0x200000000340 = 0xb0;
  *(uint16_t*)0x200000000344 = 0x24;
  *(uint16_t*)0x200000000346 = 0xf0b;
  *(uint32_t*)0x200000000348 = 0x70bd2b;
  *(uint32_t*)0x20000000034c = 0;
  *(uint8_t*)0x200000000350 = 0;
  *(uint8_t*)0x200000000351 = 0;
  *(uint16_t*)0x200000000352 = 0x12;
  *(uint32_t*)0x200000000354 = r[1];
  *(uint16_t*)0x200000000358 = 0;
  *(uint16_t*)0x20000000035a = 0;
  *(uint16_t*)0x20000000035c = -1;
  *(uint16_t*)0x20000000035e = -1;
  *(uint16_t*)0x200000000360 = 2;
  *(uint16_t*)0x200000000362 = 0;
  *(uint16_t*)0x200000000364 = 0xb;
  *(uint16_t*)0x200000000366 = 1;
  memcpy((void*)0x200000000368, "taprio\000", 7);
  *(uint16_t*)0x200000000370 = 0x80;
  *(uint16_t*)0x200000000372 = 2;
  *(uint16_t*)0x200000000374 = 0x56;
  *(uint16_t*)0x200000000376 = 1;
  *(uint8_t*)0x200000000378 = 2;
  *(uint8_t*)0x200000000379 = 0;
  *(uint8_t*)0x20000000037a = 0;
  *(uint8_t*)0x20000000037b = 0;
  *(uint8_t*)0x20000000037c = 0;
  *(uint8_t*)0x20000000037d = 0;
  *(uint8_t*)0x20000000037e = 0;
  *(uint8_t*)0x20000000037f = 0;
  *(uint8_t*)0x200000000380 = 0;
  *(uint8_t*)0x200000000381 = 0;
  *(uint8_t*)0x200000000382 = 1;
  *(uint8_t*)0x200000000383 = 1;
  *(uint8_t*)0x200000000384 = 0;
  *(uint8_t*)0x200000000385 = 0;
  *(uint8_t*)0x200000000386 = 0;
  *(uint8_t*)0x200000000387 = 0;
  *(uint8_t*)0x200000000388 = 0;
  *(uint8_t*)0x200000000389 = 0;
  *(uint16_t*)0x20000000038a = 8;
  *(uint16_t*)0x20000000038c = 6;
  *(uint16_t*)0x20000000038e = 0x3c;
  *(uint16_t*)0x200000000390 = 0;
  *(uint16_t*)0x200000000392 = 8;
  *(uint16_t*)0x200000000394 = 0;
  *(uint16_t*)0x200000000396 = 0;
  *(uint16_t*)0x200000000398 = 0;
  *(uint16_t*)0x20000000039a = 0;
  *(uint16_t*)0x20000000039c = 0;
  *(uint16_t*)0x20000000039e = 0;
  *(uint16_t*)0x2000000003a0 = 0;
  *(uint16_t*)0x2000000003a2 = 0;
  *(uint16_t*)0x2000000003a4 = 0;
  *(uint16_t*)0x2000000003a6 = 0;
  *(uint16_t*)0x2000000003a8 = 3;
  *(uint16_t*)0x2000000003aa = 0;
  *(uint16_t*)0x2000000003ac = 8;
  *(uint16_t*)0x2000000003ae = 0;
  *(uint16_t*)0x2000000003b0 = 0;
  *(uint16_t*)0x2000000003b2 = 0;
  *(uint16_t*)0x2000000003b4 = 0;
  *(uint16_t*)0x2000000003b6 = 0;
  *(uint16_t*)0x2000000003b8 = 0;
  *(uint16_t*)0x2000000003ba = 0;
  *(uint16_t*)0x2000000003bc = 0;
  *(uint16_t*)0x2000000003be = 0;
  *(uint16_t*)0x2000000003c0 = 0;
  *(uint16_t*)0x2000000003c2 = 0;
  *(uint16_t*)0x2000000003c4 = 0;
  *(uint16_t*)0x2000000003c6 = 0;
  *(uint16_t*)0x2000000003c8 = 0;
  *(uint16_t*)0x2000000003cc = 0x1c;
  STORE_BY_BITMASK(uint16_t, , 0x2000000003ce, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003cf, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003cf, 1, 7, 1);
  *(uint16_t*)0x2000000003d0 = 4;
  STORE_BY_BITMASK(uint16_t, , 0x2000000003d2, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003d3, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003d3, 1, 7, 1);
  *(uint16_t*)0x2000000003d4 = 4;
  STORE_BY_BITMASK(uint16_t, , 0x2000000003d6, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003d7, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003d7, 1, 7, 1);
  *(uint16_t*)0x2000000003d8 = 0xc;
  STORE_BY_BITMASK(uint16_t, , 0x2000000003da, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003db, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003db, 1, 7, 1);
  *(uint16_t*)0x2000000003dc = 8;
  *(uint16_t*)0x2000000003de = 4;
  *(uint32_t*)0x2000000003e0 = 5;
  *(uint16_t*)0x2000000003e4 = 4;
  STORE_BY_BITMASK(uint16_t, , 0x2000000003e6, 1, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003e7, 0, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000000003e7, 1, 7, 1);
  *(uint16_t*)0x2000000003e8 = 8;
  *(uint16_t*)0x2000000003ea = 5;
  *(uint32_t*)0x2000000003ec = 1;
  *(uint64_t*)0x200000000788 = 0xb0;
  *(uint64_t*)0x2000000007d8 = 1;
  *(uint64_t*)0x2000000007e0 = 0;
  *(uint64_t*)0x2000000007e8 = 0;
  *(uint32_t*)0x2000000007f0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[2], /*msg=*/0x2000000007c0ul, /*f=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}