text: // kernel panic: Attempted to kill init!
  // https://syzkaller.appspot.com/bug?id=f9aee1b671ee4c1fbafc98d36a896b996ea9c0bc
  // status:open
  // 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 <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>
  
  unsigned long long procid;
  
  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 void kill_and_wait(int pid, int* status)
  {
    kill(-pid, SIGKILL);
    kill(pid, SIGKILL);
    int i;
    for (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) {
    }
  }
  
  #define SYZ_HAVE_SETUP_TEST 1
  static void setup_test()
  {
    prctl(PR_SET_PDEATHSIG, SIGKILL, 0, 0, 0);
    setpgrp();
  }
  
  #define SYZ_HAVE_RESET_TEST 1
  static void reset_test()
  {
    int fd;
    for (fd = 3; fd < 30; fd++)
      close(fd);
  }
  
  static void execute_one(void);
  
  #define WAIT_FLAGS __WALL
  
  static void loop(void)
  {
    int iter;
    for (iter = 0;; iter++) {
      int pid = fork();
      if (pid < 0)
        exit(1);
      if (pid == 0) {
        setup_test();
        execute_one();
        reset_test();
        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 < 5 * 1000)
          continue;
        kill_and_wait(pid, &status);
        break;
      }
    }
  }
  
  uint64_t r[4] = {0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff,
                   0x0};
  
  void execute_one(void)
  {
    long res = 0;
    res = syscall(__NR_socket, 0xa, 0x2100000000000002, 0);
    if (res != -1)
      r[0] = res;
    res = syscall(__NR_socket, 0x10, 3, 6);
    if (res != -1)
      r[1] = res;
    *(uint16_t*)0x20000080 = 0x10;
    *(uint16_t*)0x20000082 = 0;
    *(uint32_t*)0x20000084 = 0;
    *(uint32_t*)0x20000088 = 1;
    syscall(__NR_bind, r[1], 0x20000080, 0xc);
    *(uint8_t*)0x200001c0 = 0xfe;
    *(uint8_t*)0x200001c1 = 0x80;
    *(uint8_t*)0x200001c2 = 0;
    *(uint8_t*)0x200001c3 = 0;
    *(uint8_t*)0x200001c4 = 0;
    *(uint8_t*)0x200001c5 = 0;
    *(uint8_t*)0x200001c6 = 0;
    *(uint8_t*)0x200001c7 = 0;
    *(uint8_t*)0x200001c8 = 0;
    *(uint8_t*)0x200001c9 = 0;
    *(uint8_t*)0x200001ca = 0;
    *(uint8_t*)0x200001cb = 0;
    *(uint8_t*)0x200001cc = 0;
    *(uint8_t*)0x200001cd = 0;
    *(uint8_t*)0x200001ce = 0;
    *(uint8_t*)0x200001cf = 0xbb;
    *(uint32_t*)0x200001d0 = htobe32(0xe0000002);
    *(uint16_t*)0x200001e0 = htobe16(0);
    *(uint16_t*)0x200001e2 = htobe16(0);
    *(uint16_t*)0x200001e4 = htobe16(0);
    *(uint16_t*)0x200001e6 = htobe16(0);
    *(uint16_t*)0x200001e8 = 0xa;
    *(uint8_t*)0x200001ea = 0;
    *(uint8_t*)0x200001eb = 0;
    *(uint8_t*)0x200001ec = 0;
    *(uint32_t*)0x200001f0 = 0;
    *(uint32_t*)0x200001f4 = 0;
    *(uint64_t*)0x200001f8 = 0;
    *(uint64_t*)0x20000200 = 0;
    *(uint64_t*)0x20000208 = 0;
    *(uint64_t*)0x20000210 = 0;
    *(uint64_t*)0x20000218 = 0;
    *(uint64_t*)0x20000220 = 0;
    *(uint64_t*)0x20000228 = 0;
    *(uint64_t*)0x20000230 = 0;
    *(uint64_t*)0x20000238 = 0;
    *(uint64_t*)0x20000240 = 0;
    *(uint64_t*)0x20000248 = 0;
    *(uint64_t*)0x20000250 = 0;
    *(uint32_t*)0x20000258 = 0;
    *(uint32_t*)0x2000025c = 0;
    *(uint8_t*)0x20000260 = 1;
    *(uint8_t*)0x20000261 = 0;
    *(uint8_t*)0x20000262 = 0;
    *(uint8_t*)0x20000263 = 0;
    *(uint64_t*)0x20000268 = htobe64(0);
    *(uint64_t*)0x20000270 = htobe64(1);
    *(uint32_t*)0x20000278 = htobe32(0);
    *(uint8_t*)0x2000027c = 0x2b;
    *(uint16_t*)0x20000280 = 2;
    *(uint32_t*)0x20000284 = htobe32(-1);
    *(uint32_t*)0x20000294 = 0;
    *(uint8_t*)0x20000298 = 3;
    *(uint8_t*)0x20000299 = 0;
    *(uint8_t*)0x2000029a = 9;
    *(uint32_t*)0x2000029c = 0;
    *(uint32_t*)0x200002a0 = 0;
    *(uint32_t*)0x200002a4 = 0;
    syscall(__NR_setsockopt, r[0], 0x29, 0x23, 0x200001c0, 0xe8);
    *(uint16_t*)0x20000040 = 0xa;
    *(uint16_t*)0x20000042 = htobe16(0);
    *(uint32_t*)0x20000044 = 0;
    *(uint8_t*)0x20000048 = -1;
    *(uint8_t*)0x20000049 = 2;
    *(uint8_t*)0x2000004a = 0;
    *(uint8_t*)0x2000004b = 0;
    *(uint8_t*)0x2000004c = 0;
    *(uint8_t*)0x2000004d = 0;
    *(uint8_t*)0x2000004e = 0;
    *(uint8_t*)0x2000004f = 0;
    *(uint8_t*)0x20000050 = 0;
    *(uint8_t*)0x20000051 = 0;
    *(uint8_t*)0x20000052 = 0;
    *(uint8_t*)0x20000053 = 0;
    *(uint8_t*)0x20000054 = 0;
    *(uint8_t*)0x20000055 = 0;
    *(uint8_t*)0x20000056 = 0;
    *(uint8_t*)0x20000057 = 1;
    *(uint32_t*)0x20000058 = 4;
    syscall(__NR_connect, r[0], 0x20000040, 0x1c);
    res = syscall(__NR_inotify_init1, 0);
    if (res != -1)
      r[2] = res;
    syscall(__NR_fcntl, r[2], 8, -1);
    res = syscall(__NR_fcntl, r[2], 0x10, 0x20000200);
    if (res != -1)
      r[3] = *(uint32_t*)0x20000204;
    syscall(__NR_ptrace, 0x4206, r[3], 0, 0);
    syscall(__NR_ptrace, 0x4207, r[3]);
    syscall(__NR_ptrace, 9, r[3], 0, 0);
  }
  int main(void)
  {
    syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0);
    for (procid = 0; procid < 6; procid++) {
      if (fork() == 0) {
        loop();
      }
    }
    sleep(1000000);
    return 0;
  }
  