// https://syzkaller.appspot.com/bug?id=00fadf9a6326e13098672b601d57f644cae380e9
// 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, 0x80002ul, 0);
  if (res != -1)
    r[0] = res;
  memcpy((void*)0x20000ac0,
         "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*)0x20000ae0 = 0xe;
  *(uint32_t*)0x20000ae4 = 4;
  *(uint32_t*)0x20000ae8 = 0x400;
  *(uint32_t*)0x20000aec = 0xd0;
  *(uint32_t*)0x20000af0 = 0x1f8;
  *(uint32_t*)0x20000af4 = 0;
  *(uint32_t*)0x20000af8 = 0x1f8;
  *(uint32_t*)0x20000afc = 0xd0;
  *(uint32_t*)0x20000b00 = 0x2c0;
  *(uint32_t*)0x20000b04 = 0x330;
  *(uint32_t*)0x20000b08 = 0x330;
  *(uint32_t*)0x20000b0c = 0x330;
  *(uint32_t*)0x20000b10 = 0x2c0;
  *(uint32_t*)0x20000b14 = 4;
  *(uint64_t*)0x20000b18 = 0;
  memset((void*)0x20000b20, 0, 136);
  *(uint32_t*)0x20000ba8 = 0;
  *(uint16_t*)0x20000bac = 0xa8;
  *(uint16_t*)0x20000bae = 0x108;
  *(uint32_t*)0x20000bb0 = 0;
  *(uint64_t*)0x20000bb8 = 0;
  *(uint64_t*)0x20000bc0 = 0;
  *(uint16_t*)0x20000bc8 = 0x60;
  memcpy((void*)0x20000bca,
         "HMARK\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*)0x20000be7 = 0;
  *(uint32_t*)0x20000be8 = htobe32(-1);
  *(uint32_t*)0x20000bf8 = htobe32(0);
  *(uint32_t*)0x20000bfc = htobe32(0);
  *(uint32_t*)0x20000c00 = htobe32(0);
  *(uint32_t*)0x20000c04 = htobe32(0);
  *(uint16_t*)0x20000c08 = htobe16(0);
  *(uint16_t*)0x20000c0a = htobe16(0);
  *(uint16_t*)0x20000c0c = htobe16(0);
  *(uint16_t*)0x20000c0e = htobe16(0);
  *(uint32_t*)0x20000c10 = 0;
  *(uint16_t*)0x20000c14 = 0;
  *(uint32_t*)0x20000c18 = 0;
  *(uint32_t*)0x20000c1c = 4;
  *(uint32_t*)0x20000c20 = 0;
  *(uint8_t*)0x20000c28 = 0xfe;
  *(uint8_t*)0x20000c29 = 0x88;
  memset((void*)0x20000c2a, 0, 12);
  *(uint8_t*)0x20000c36 = 0;
  *(uint8_t*)0x20000c37 = 1;
  memset((void*)0x20000c38, 0, 10);
  memset((void*)0x20000c42, 255, 2);
  *(uint8_t*)0x20000c44 = 0xac;
  *(uint8_t*)0x20000c45 = 0x14;
  *(uint8_t*)0x20000c46 = 0x14;
  *(uint8_t*)0x20000c47 = 0xbb;
  *(uint32_t*)0x20000c48 = htobe32(0);
  *(uint32_t*)0x20000c4c = htobe32(0);
  *(uint32_t*)0x20000c50 = htobe32(0);
  *(uint32_t*)0x20000c54 = htobe32(0);
  *(uint32_t*)0x20000c58 = htobe32(0);
  *(uint32_t*)0x20000c5c = htobe32(0);
  *(uint32_t*)0x20000c60 = htobe32(0);
  *(uint32_t*)0x20000c64 = htobe32(0);
  memcpy((void*)0x20000c68, "vlan0\000\000\000\000\000\000\000\000\000\000\000",
         16);
  memcpy((void*)0x20000c78, "syzkaller0\000\000\000\000\000\000", 16);
  *(uint8_t*)0x20000c88 = 0;
  *(uint8_t*)0x20000c98 = 0;
  *(uint16_t*)0x20000ca8 = 0;
  *(uint8_t*)0x20000caa = 0;
  *(uint8_t*)0x20000cab = 0;
  *(uint8_t*)0x20000cac = 0;
  *(uint32_t*)0x20000cb0 = 0;
  *(uint16_t*)0x20000cb4 = 0xa8;
  *(uint16_t*)0x20000cb6 = 0xf0;
  *(uint32_t*)0x20000cb8 = 0;
  *(uint64_t*)0x20000cc0 = 0;
  *(uint64_t*)0x20000cc8 = 0;
  *(uint16_t*)0x20000cd0 = 0x48;
  memcpy((void*)0x20000cd2,
         "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*)0x20000cef = 1;
  *(uint8_t*)0x20000cf0 = -1;
  *(uint8_t*)0x20000cf1 = 2;
  memset((void*)0x20000cf2, 0, 13);
  *(uint8_t*)0x20000cff = 1;
  memcpy((void*)0x20000d00, "netdevsim0\000\000\000\000\000\000", 16);
  *(uint64_t*)0x20000d10 = 0;
  *(uint8_t*)0x20000d18 = 0xfe;
  *(uint8_t*)0x20000d19 = 0x80;
  memset((void*)0x20000d1a, 0, 13);
  *(uint8_t*)0x20000d27 = 0xaa;
  *(uint8_t*)0x20000d28 = 0xfe;
  *(uint8_t*)0x20000d29 = 0x80;
  memset((void*)0x20000d2a, 0, 13);
  *(uint8_t*)0x20000d37 = 0;
  *(uint32_t*)0x20000d38 = htobe32(0);
  *(uint32_t*)0x20000d3c = htobe32(0);
  *(uint32_t*)0x20000d40 = htobe32(0);
  *(uint32_t*)0x20000d44 = htobe32(0);
  *(uint32_t*)0x20000d48 = htobe32(0);
  *(uint32_t*)0x20000d4c = htobe32(0);
  *(uint32_t*)0x20000d50 = htobe32(0);
  *(uint32_t*)0x20000d54 = htobe32(0);
  memcpy((void*)0x20000d58, "vlan1\000\000\000\000\000\000\000\000\000\000\000",
         16);
  memcpy((void*)0x20000d68, "ipvlan0\000\000\000\000\000\000\000\000\000", 16);
  *(uint8_t*)0x20000d78 = 0;
  *(uint8_t*)0x20000d88 = 0;
  *(uint16_t*)0x20000d98 = 0;
  *(uint8_t*)0x20000d9a = 0;
  *(uint8_t*)0x20000d9b = 0;
  *(uint8_t*)0x20000d9c = 0;
  *(uint32_t*)0x20000da0 = 0;
  *(uint16_t*)0x20000da4 = 0x110;
  *(uint16_t*)0x20000da6 = 0x138;
  *(uint32_t*)0x20000da8 = 0;
  *(uint64_t*)0x20000db0 = 0;
  *(uint64_t*)0x20000db8 = 0;
  *(uint16_t*)0x20000dc0 = 0x68;
  memcpy((void*)0x20000dc2,
         "iprange\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*)0x20000ddf = 1;
  *(uint8_t*)0x20000de0 = 0xfe;
  *(uint8_t*)0x20000de1 = 0x80;
  memset((void*)0x20000de2, 0, 13);
  *(uint8_t*)0x20000def = 0xaa;
  *(uint8_t*)0x20000df0 = 0xfe;
  *(uint8_t*)0x20000df1 = 0x80;
  memset((void*)0x20000df2, 0, 13);
  *(uint8_t*)0x20000dff = 0xbb;
  *(uint8_t*)0x20000e00 = 0xfe;
  *(uint8_t*)0x20000e01 = 0x80;
  memset((void*)0x20000e02, 0, 13);
  *(uint8_t*)0x20000e0f = 0;
  *(uint8_t*)0x20000e10 = 0xfc;
  *(uint8_t*)0x20000e11 = 1;
  memset((void*)0x20000e12, 0, 13);
  *(uint8_t*)0x20000e1f = 0;
  *(uint8_t*)0x20000e20 = 0x41;
  *(uint16_t*)0x20000e28 = 0x28;
  memcpy((void*)0x20000e2a,
         "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*)0x20000e47 = 0;
  *(uint32_t*)0x20000e48 = 0;
  memset((void*)0x20000e50, 0, 136);
  *(uint32_t*)0x20000ed8 = 0;
  *(uint16_t*)0x20000edc = 0xa8;
  *(uint16_t*)0x20000ede = 0xd0;
  *(uint32_t*)0x20000ee0 = 0;
  *(uint64_t*)0x20000ee8 = 0;
  *(uint64_t*)0x20000ef0 = 0;
  *(uint16_t*)0x20000ef8 = 0x28;
  memset((void*)0x20000efa, 0, 29);
  *(uint8_t*)0x20000f17 = 0;
  *(uint32_t*)0x20000f18 = 0xfffffffe;
  syscall(__NR_setsockopt, r[0], 0x29, 0x40, 0x20000ac0ul, 0x460ul);
  *(uint32_t*)0x2025c000 = 2;
  *(uint32_t*)0x2025c004 = 0x80;
  *(uint8_t*)0x2025c008 = 0;
  *(uint8_t*)0x2025c009 = 3;
  *(uint8_t*)0x2025c00a = 0;
  *(uint8_t*)0x2025c00b = 0;
  *(uint32_t*)0x2025c00c = 0;
  *(uint64_t*)0x2025c010 = 0;
  *(uint64_t*)0x2025c018 = 0;
  *(uint64_t*)0x2025c020 = 0;
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 0, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 1, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 2, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 3, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 4, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 5, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 6, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 7, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 8, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 9, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 10, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 11, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 12, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 13, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 14, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 15, 2);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 17, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 18, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 19, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 20, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 21, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 22, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 23, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 24, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 25, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 26, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 27, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 28, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 29, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 30, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 31, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 32, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 33, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 34, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 35, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 36, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 37, 1);
  STORE_BY_BITMASK(uint64_t, , 0x2025c028, 0, 38, 26);
  *(uint32_t*)0x2025c030 = 0;
  *(uint32_t*)0x2025c034 = 0;
  *(uint64_t*)0x2025c038 = 0;
  *(uint64_t*)0x2025c040 = 0;
  *(uint64_t*)0x2025c048 = 0;
  *(uint64_t*)0x2025c050 = 0;
  *(uint32_t*)0x2025c058 = 0;
  *(uint32_t*)0x2025c05c = 0;
  *(uint64_t*)0x2025c060 = 0;
  *(uint32_t*)0x2025c068 = 0;
  *(uint16_t*)0x2025c06c = 0;
  *(uint16_t*)0x2025c06e = 0;
  *(uint32_t*)0x2025c070 = 0;
  *(uint32_t*)0x2025c074 = 0;
  *(uint64_t*)0x2025c078 = 0;
  res = syscall(__NR_perf_event_open, 0x2025c000ul, 0, 0ul, -1, 0ul);
  if (res != -1)
    r[1] = res;
  syscall(__NR_close, r[1]);
  memcpy((void*)0x20000080, "/dev/ppp\000", 9);
  syscall(__NR_openat, 0xffffffffffffff9cul, 0x20000080ul, 0ul, 0ul);
  memcpy(
      (void*)0x20000000,
      "\211)o "
      "\352\253R\\\262\036\215\275\302\227\350\254^B\v\323\026}\202\303\372v",
      26);
  syscall(__NR_ioctl, r[1], 0xc004743e, 0x20000000ul);
  res = syscall(__NR_socket, 0x10ul, 3ul, 0xc);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x20000100 = 0;
  *(uint32_t*)0x20000108 = 0;
  *(uint64_t*)0x20000110 = 0x200000c0;
  *(uint64_t*)0x200000c0 = 0x20000080;
  *(uint32_t*)0x20000080 = 0x2c;
  *(uint8_t*)0x20000084 = 0;
  *(uint8_t*)0x20000085 = 0xb;
  *(uint16_t*)0x20000086 = 0x801;
  *(uint32_t*)0x20000088 = 0;
  *(uint32_t*)0x2000008c = 0;
  *(uint8_t*)0x20000090 = 3;
  *(uint8_t*)0x20000091 = 0;
  *(uint16_t*)0x20000092 = htobe16(0);
  *(uint16_t*)0x20000094 = 8;
  STORE_BY_BITMASK(uint16_t, , 0x20000096, 3, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x20000097, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x20000097, 0, 7, 1);
  *(uint32_t*)0x20000098 = htobe32(0);
  *(uint16_t*)0x2000009c = 8;
  STORE_BY_BITMASK(uint16_t, , 0x2000009e, 2, 0, 14);
  STORE_BY_BITMASK(uint16_t, , 0x2000009f, 1, 6, 1);
  STORE_BY_BITMASK(uint16_t, , 0x2000009f, 0, 7, 1);
  *(uint32_t*)0x200000a0 = htobe32(0);
  *(uint16_t*)0x200000a4 = 5;
  *(uint16_t*)0x200000a6 = 1;
  memset((void*)0x200000a8, 0, 1);
  *(uint64_t*)0x200000c8 = 0x2c;
  *(uint64_t*)0x20000118 = 1;
  *(uint64_t*)0x20000120 = 0;
  *(uint64_t*)0x20000128 = 0;
  *(uint32_t*)0x20000130 = 0;
  syscall(__NR_sendmsg, r[2], 0x20000100ul, 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;
}