// https://syzkaller.appspot.com/bug?id=7041324073b32a6a08de78508dbc5756e371a84a
// 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>

#ifndef __NR_mmap
#define __NR_mmap 222
#endif
#ifndef __NR_sendmsg
#define __NR_sendmsg 211
#endif
#ifndef __NR_setsockopt
#define __NR_setsockopt 208
#endif
#ifndef __NR_socket
#define __NR_socket 198
#endif

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;
}

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[5] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 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=*/0xaul, /*type=SOCK_DGRAM*/ 2ul,
                /*proto=*/0);
  if (res != -1)
    r[0] = res;
  *(uint8_t*)0x200004c0 = 0xac;
  *(uint8_t*)0x200004c1 = 0x14;
  *(uint8_t*)0x200004c2 = 0x14;
  *(uint8_t*)0x200004c3 = 0xbb;
  *(uint32_t*)0x200004d0 = htobe32(-1);
  *(uint16_t*)0x200004e0 = htobe16(0);
  *(uint16_t*)0x200004e2 = htobe16(0);
  *(uint16_t*)0x200004e4 = htobe16(0);
  *(uint16_t*)0x200004e6 = htobe16(0);
  *(uint16_t*)0x200004e8 = 0xa;
  *(uint8_t*)0x200004ea = 0;
  *(uint8_t*)0x200004eb = 0;
  *(uint8_t*)0x200004ec = 0;
  *(uint32_t*)0x200004f0 = 0;
  *(uint32_t*)0x200004f4 = 0;
  *(uint64_t*)0x200004f8 = 0;
  *(uint64_t*)0x20000500 = 0;
  *(uint64_t*)0x20000508 = 0;
  *(uint64_t*)0x20000510 = 0;
  *(uint64_t*)0x20000518 = 0;
  *(uint64_t*)0x20000520 = 0;
  *(uint64_t*)0x20000528 = 0x9d;
  *(uint64_t*)0x20000530 = 0;
  *(uint64_t*)0x20000538 = 0;
  *(uint64_t*)0x20000540 = 0;
  *(uint64_t*)0x20000548 = 0;
  *(uint64_t*)0x20000550 = 0;
  *(uint32_t*)0x20000558 = 0;
  *(uint32_t*)0x2000055c = 0;
  *(uint8_t*)0x20000560 = 0;
  *(uint8_t*)0x20000561 = 0;
  *(uint8_t*)0x20000562 = 0;
  *(uint8_t*)0x20000563 = 0;
  *(uint8_t*)0x20000568 = -1;
  *(uint8_t*)0x20000569 = 2;
  memset((void*)0x2000056a, 0, 13);
  *(uint8_t*)0x20000577 = 1;
  *(uint32_t*)0x20000578 = htobe32(0);
  *(uint8_t*)0x2000057c = 0x2b;
  *(uint16_t*)0x20000580 = 0;
  *(uint32_t*)0x20000584 = htobe32(0);
  *(uint32_t*)0x20000594 = 0;
  *(uint8_t*)0x20000598 = 4;
  *(uint8_t*)0x20000599 = 0;
  *(uint8_t*)0x2000059a = 0;
  *(uint32_t*)0x2000059c = 0;
  *(uint32_t*)0x200005a0 = 0;
  *(uint32_t*)0x200005a4 = 0;
  syscall(__NR_setsockopt, /*fd=*/r[0], /*level=*/0x29, /*optname=*/0x23,
          /*optval=*/0x200004c0ul, /*optlen=*/0xe8ul);
  res = syscall(__NR_socket, /*domain=*/0xful, /*type=*/3ul, /*proto=*/2);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x200001c0 = 0;
  syscall(__NR_setsockopt, /*fd=*/r[1], /*level=*/1, /*optname=SO_RCVBUF*/ 8,
          /*optval=*/0x200001c0ul, /*optlen=*/4ul);
  *(uint64_t*)0x20000180 = 0;
  *(uint32_t*)0x20000188 = 0;
  *(uint64_t*)0x20000190 = 0x20000000;
  *(uint64_t*)0x20000000 = 0x200005c0;
  memcpy((void*)0x200005c0, "\x02\x0b\x00\x01\x02", 5);
  *(uint64_t*)0x20000008 = 0x10;
  *(uint64_t*)0x20000198 = 1;
  *(uint64_t*)0x200001a0 = 0;
  *(uint64_t*)0x200001a8 = 0;
  *(uint32_t*)0x200001b0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x20000180ul, /*f=*/0ul);
  *(uint64_t*)0x200000c0 = 0;
  *(uint32_t*)0x200000c8 = 0;
  *(uint64_t*)0x200000d0 = 0x20000380;
  *(uint64_t*)0x20000380 = 0x20000240;
  memcpy((void*)0x20000240, "\x02\x12\x00\x00\x02", 5);
  *(uint64_t*)0x20000388 = 0x10;
  *(uint64_t*)0x200000d8 = 1;
  *(uint64_t*)0x200000e0 = 0;
  *(uint64_t*)0x200000e8 = 0;
  *(uint32_t*)0x200000f0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[1], /*msg=*/0x200000c0ul, /*f=*/0ul);
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/6);
  if (res != -1)
    r[2] = res;
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/6);
  if (res != -1)
    r[3] = res;
  *(uint64_t*)0x20000580 = 0;
  *(uint32_t*)0x20000588 = 0;
  *(uint64_t*)0x20000590 = 0x20000180;
  *(uint64_t*)0x20000180 = 0x20000000;
  memcpy((void*)0x20000000,
         "\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc"
         "\x00\x00\x00\x00\x00\x00\x00\x01\x00\x00\x00\x00\x00\x00\x00\xac\x1e"
         "\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x0a\x00\x60",
         59);
  *(uint64_t*)0x20000188 = 0xb8;
  *(uint64_t*)0x20000598 = 1;
  *(uint64_t*)0x200005a0 = 0;
  *(uint64_t*)0x200005a8 = 0;
  *(uint32_t*)0x200005b0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[3], /*msg=*/0x20000580ul, /*f=*/0ul);
  res = syscall(__NR_socket, /*domain=*/0x10ul, /*type=*/3ul, /*proto=*/6);
  if (res != -1)
    r[4] = res;
  *(uint64_t*)0x20000580 = 0;
  *(uint32_t*)0x20000588 = 0;
  *(uint64_t*)0x20000590 = 0x20000180;
  *(uint64_t*)0x20000180 = 0x20000000;
  memcpy((void*)0x20000000,
         "\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xac\x1e"
         "\x00\x01\x82\x15\x01\xf6\x3e\xd0\x2a\x17\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x0a\x00\x60\x30",
         60);
  *(uint64_t*)0x20000188 = 0xb8;
  *(uint64_t*)0x20000598 = 1;
  *(uint64_t*)0x200005a0 = 0;
  *(uint64_t*)0x200005a8 = 0;
  *(uint32_t*)0x200005b0 = 0x80;
  syscall(__NR_sendmsg, /*fd=*/r[4], /*msg=*/0x20000580ul, /*f=*/0ul);
  *(uint64_t*)0x20000580 = 0;
  *(uint32_t*)0x20000588 = 0;
  *(uint64_t*)0x20000590 = 0x20000180;
  *(uint64_t*)0x20000180 = 0x20000000;
  memcpy((void*)0x20000000,
         "\xb8\x00\x00\x00\x13\x00\xe9\x99\x00\x00\x00\x00\x00\x00\x00\x00\xfc"
         "\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xac\x1e"
         "\x00\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00"
         "\x00\x00\x00\x00\x00\x0a\x00\x40\x00\x00\x00",
         62);
  *(uint64_t*)0x20000188 = 0xb8;
  *(uint64_t*)0x20000598 = 1;
  *(uint64_t*)0x200005a0 = 0;
  *(uint64_t*)0x200005a8 = 0;
  *(uint32_t*)0x200005b0 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[2], /*msg=*/0x20000580ul, /*f=*/0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x20000000ul, /*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=*/0x21000000ul, /*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;
}