// https://syzkaller.appspot.com/bug?id=4cc2fb55688d9531f6302893f47f046b3e317ed5
// 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_bpf
#define __NR_bpf 321
#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[3] = {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=*/2ul, /*type=*/1ul, /*proto=*/0);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x20000000 = 2;
  *(uint16_t*)0x20000002 = htobe16(0x4e20);
  *(uint32_t*)0x20000004 = htobe32(0xe0000001);
  syscall(__NR_bind, /*fd=*/r[0], /*addr=*/0x20000000ul, /*addrlen=*/0x10ul);
  *(uint16_t*)0x200018c0 = 2;
  *(uint16_t*)0x200018c2 = htobe16(0x4e20);
  *(uint32_t*)0x200018c4 = htobe32(0);
  syscall(
      __NR_sendto, /*fd=*/r[0], /*buf=*/0ul, /*len=*/0ul,
      /*f=MSG_FASTOPEN|MSG_PROBE|MSG_EOR|MSG_DONTROUTE|0x20000*/ 0x20020094ul,
      /*addr=*/0x200018c0ul, /*addrlen=*/0x10ul);
  *(uint32_t*)0x2000e000 = 0xe;
  *(uint32_t*)0x2000e004 = 4;
  *(uint64_t*)0x2000e008 = 0x20000600;
  memcpy(
      (void*)0x20000600,
      "\xb4\x05\x00\x00\x20\x00\x80\x00\x61\x10\x00\x00\x00\x00\x00\x00\xc6\x00"
      "\x00\x00\x00\x00\x00\x00\x95\x00\x00\x00\x00\x00\x00\x00\x9f\x33\xef\x60"
      "\x91\x6e\x6e\x89\x3f\x1e\xeb\x0b\xe2\x56\x6c\xd0\x72\x30\x43\xc4\x7c\x89"
      "\x6c\xe0\xbc\xe6\x6a\x24\x5a\xd9\x9b\x81\x7f\xd9\x8c\xd8\x24\x49\x89\x49"
      "\x71\x4f\xfa\xac\x8a\x6f\x77\xef\x26\xdc\xca\x55\x82\x05\x4d\x54\xd5\x3c"
      "\xd2\xb6\xdb\x71\x4e\x4b\x94\xbd\xae\x21\x4f\xa6\x8a\x05\x57\xeb\x2c\x5c"
      "\xa6\x83\xa4\xb6\xfc\x89\x39\x8f\x2b\x90\x00\xf2\x24\xd4\x42\x01\x7c\xfa"
      "\x6f\xa2\x6f\xa7\xa3\x47\x00\x45\x8c\x60\x89\x7d\x4a\x61\x48\xa1\xc1\x14"
      "\x28\x60\x7c\x40\xde\x60\xbe\xac\x67\x1e\x8e\x8f\xde\xcb\x03\x58\x8a\xa6"
      "\x23\xfa\x71\xf8\x71\xab\x5c\x2f\xf8\x8a\xfc\x60\x02\x08\x4e\x5b\x52\x71"
      "\x0a\xee\xe8\x35\xcf\x0d\x78\xe4\x5f\x70\x98\x38\x26\xfb\x85\x79\xc1\xfb"
      "\x01\xd2\xc5\x55\x3d\x2c\xcb\x5f\xc5\xb5\x1f\xe6\xb1\x74\xeb\xd9\x90\x7d"
      "\xcf\xf4\x14\xed\x55\xb0\xc2\x0c\xdb\xe7\x00\x9a\x6f\xe7\xcc\x78\x76\x2f"
      "\x1d\x4d\xcd\xbc\xa6\x49\x20\xdb\x9a\x50\xf8\x6c\x21\x63\x2f\xd3\x0b\xf0"
      "\x51\x21\x43\x8b\xb7\x4e\x46\x70\xab\x5d\xfe\x44\x7a\x4b\xd3\x44\xe0\xbd"
      "\x74\xff\x05\xd3\x7e\xf6\x8e\x3b\x9d\xb8\x63\xc7\x58\xff\xff\xff\xff\xab"
      "\xe9\x0a\xc5\xd0\x8d\xd9\xd4\xe2\x35\x9c\x41\xcf\xb4\x26\xe1\x23\x0b\xc1"
      "\xcd\x4c\x02\xc4\x60\xce\xb4\x42\x76\xe9\xbd\x94\xd1\xc2\xe6\xd1\x7d\xc5"
      "\xc2\xed\xf3\x32\xa6\x2f\x5f\xe6\x8f\xbb\xbb\xfc\xfd\x78\xa9\xf3\xfd\xc1"
      "\xf5\x0c\x44\x5e\x3f\x30\xe7\x03\xcf\x05\xb9\x0f\xbf\x94\x0e\x66\x52\xd3"
      "\x77\x47\x4e\xd5\xf8\x16\xf6\x6a\xc3\x02\x74\x60\xae\x99\x1e\x7f\x83\xcd"
      "\xd7\xa7\xfc\x2a\x70\x03\xd1\xa6\xcf\x54\x78\x53\x35\x84\x96\x1c\x32\x9f"
      "\xcf\x4f\xed\x5c\x94\x55\x64\x0d\xcd\x28\x27\x3d\x79\x11\x3f\x29\x15\xa3"
      "\x03\x9c\x9a\x78\xf6\x3b\x8e\xc7\x5e\x38\x2d\x27\xfe\xd7\xd6\x7c\x44\x0e"
      "\x23\xd1\x30\xe5\x1e\xea\x1e\x08\x5b\xeb\xab\xe7\x05\x9d\xe9\xcb\xfc\x51"
      "\x17\xc0\x24\x18\x5a\x06\x2a\xcb\x6b\x8e\xec\x31\xc2\x1b\x3a\xf8\xb9\xee"
      "\xdb\x46\x60\xed\x2d\xef\x7a\xcf\x2a\x33\xa3\x76\xa5\xcb\x7d\x42\x66\xd5"
      "\xb0\xbe\x14\x48\x8d\x14\xb4\x73\x50\x24\x86\xaf\x8d\xd6\x00\x00\x00\x00"
      "\x00\x00\x00\x00\x00\x00",
      510);
  *(uint64_t*)0x2000e010 = 0x20003ff6;
  memcpy((void*)0x20003ff6, "GPL\000", 4);
  *(uint32_t*)0x2000e018 = 4;
  *(uint32_t*)0x2000e01c = 0xfd90;
  *(uint64_t*)0x2000e020 = 0x2000cf3d;
  *(uint32_t*)0x2000e028 = 0;
  *(uint32_t*)0x2000e02c = 0;
  memset((void*)0x2000e030, 0, 16);
  *(uint32_t*)0x2000e040 = 0;
  *(uint32_t*)0x2000e044 = 0;
  *(uint32_t*)0x2000e048 = -1;
  *(uint32_t*)0x2000e04c = 8;
  *(uint64_t*)0x2000e050 = 0x20000000;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x2000e058 = 0x366;
  *(uint32_t*)0x2000e05c = 0x10;
  *(uint64_t*)0x2000e060 = 0x20000000;
  *(uint32_t*)0x20000000 = 0;
  *(uint32_t*)0x20000004 = 0;
  *(uint32_t*)0x20000008 = 0;
  *(uint32_t*)0x2000000c = 0;
  *(uint32_t*)0x2000e068 = 0x1dd;
  *(uint32_t*)0x2000e06c = 0;
  *(uint32_t*)0x2000e070 = -1;
  *(uint32_t*)0x2000e074 = 0;
  *(uint64_t*)0x2000e078 = 0;
  *(uint64_t*)0x2000e080 = 0;
  *(uint32_t*)0x2000e088 = 0x10;
  *(uint32_t*)0x2000e08c = 0;
  *(uint32_t*)0x2000e090 = 0;
  res = syscall(__NR_bpf, /*cmd=*/5ul, /*arg=*/0x2000e000ul, /*size=*/0x48ul);
  if (res != -1)
    r[1] = res;
  *(uint32_t*)0x20000400 = 0xf;
  *(uint32_t*)0x20000404 = 4;
  *(uint32_t*)0x20000408 = 4;
  *(uint32_t*)0x2000040c = 0x12;
  *(uint32_t*)0x20000410 = 0;
  *(uint32_t*)0x20000414 = -1;
  *(uint32_t*)0x20000418 = 0;
  memset((void*)0x2000041c, 0, 16);
  *(uint32_t*)0x2000042c = 0;
  *(uint32_t*)0x20000430 = -1;
  *(uint32_t*)0x20000434 = 0;
  *(uint32_t*)0x20000438 = 0;
  *(uint32_t*)0x2000043c = 0;
  *(uint64_t*)0x20000440 = 0;
  *(uint32_t*)0x20000448 = 0;
  *(uint32_t*)0x2000044c = 0;
  res = syscall(__NR_bpf, /*cmd=*/0ul, /*arg=*/0x20000400ul, /*size=*/0x48ul);
  if (res != -1)
    r[2] = res;
  *(uint64_t*)0x20000540 = 0;
  *(uint32_t*)0x20000548 = 0;
  *(uint64_t*)0x20000550 = 0x20000500;
  *(uint64_t*)0x20000500 = 0x20000800;
  memcpy((void*)0x20000800,
         "\xed\x03\xbc\x38\x9d\xc4\x1c\xf0\x4f\xd7\xfa\x23\x08\x59\xdd\x93\x04"
         "\x50\xd2\x2f\x0d\xeb\xcc\x3e\xcf\x2f\xc5\xdb\x08\x9f\xb9\xa8\x1c\x8f"
         "\xe7\x7b\x99\xe0\x77\x1c\x3a\x51\xd9\x0d\x0a\x28\x6a\x3d\x08\xb8\x06"
         "\x4b\xae\x47\x39\x3b\x4d\x6f\xd5\xa2\x40\xe4\x4a\x3d\x2f\xc5\xb9\xd6"
         "\x51\x95\xe6\x41\x95\xb8\x6a\xd7\x93\x1f\xbb\xc6\xdf\x0c\x18\x63\x17"
         "\xe0\x7d\xb7\x44\xff\x93\x10\x55\x63\x91\x58\x2f\x97\xc4\xa9\x00\xe0"
         "\x47\x16\x91\x6c\xe4\x69\xb4\xf6\x7e\x12\x2a\x98\x7e\xf0\xaf\x05\x07"
         "\x60\x4c\x61\x7f\x43\x41\x8c\x70\x44\x66\x61\x8c\xff\x01\xf6\xa5\xed"
         "\x69\x16\x9b\x6c\x3b\xda\xd4\x10\x64\xc9\x73\x93\x70\xee\x89\x16\xb6"
         "\x93\x69\x54\xf6\x86\x57\x19\x36\x6b\xf1\x15\x6a\xb5\x63\x72\x7a\x53"
         "\xe0\x68\x63\xfb\xad\x45\xfd\x4f\x85\x1b\xc6\x0e\xe3\x9a\xdd\x6b\xe5"
         "\xd0\x43\x30\x9c\x8a\x45\xe4\xa1\x5c\x70\x31\x35\x80\x03\x70\xc9\x24"
         "\x6c\x39\xe7\x6a\x15\xa5\x75\xf3\x88\x5d\x48\x38\xe1\xa5\x59\xae",
         220);
  *(uint64_t*)0x20000508 = 0xdc;
  *(uint64_t*)0x20000510 = 0;
  *(uint64_t*)0x20000518 = 0;
  *(uint64_t*)0x20000520 = 0;
  *(uint64_t*)0x20000528 = 0;
  *(uint64_t*)0x20000530 = 0;
  *(uint64_t*)0x20000538 = 0;
  *(uint64_t*)0x20000558 = 4;
  *(uint64_t*)0x20000560 = 0;
  *(uint64_t*)0x20000568 = 0;
  *(uint32_t*)0x20000570 = 0;
  syscall(__NR_sendmsg, /*fd=*/r[0], /*msg=*/0x20000540ul, /*f=*/0ul);
  *(uint64_t*)0x20000980 = 0;
  *(uint32_t*)0x20000988 = 0;
  *(uint64_t*)0x20000990 = 0x200005c0;
  *(uint64_t*)0x200005c0 = 0x20000480;
  *(uint64_t*)0x200005c8 = 0x38;
  *(uint64_t*)0x20000998 = 1;
  *(uint64_t*)0x200009a0 = 0;
  *(uint64_t*)0x200009a8 = 0;
  *(uint32_t*)0x200009b0 = 0;
  *(uint32_t*)0x200009b8 = 0;
  syscall(__NR_recvmmsg, /*fd=*/r[0], /*mmsg=*/0x20000980ul, /*vlen=*/1ul,
          /*f=*/0ul, /*timeout=*/0ul);
  *(uint32_t*)0x20000080 = r[2];
  *(uint32_t*)0x20000084 = r[1];
  *(uint32_t*)0x20000088 = 5;
  *(uint32_t*)0x2000008c = 0;
  *(uint32_t*)0x20000090 = 0;
  *(uint32_t*)0x20000094 = -1;
  *(uint64_t*)0x20000098 = 0;
  syscall(__NR_bpf, /*cmd=*/8ul, /*arg=*/0x20000080ul, /*size=*/0x10ul);
  *(uint32_t*)0x20000280 = r[2];
  *(uint64_t*)0x20000288 = 0x20000340;
  *(uint64_t*)0x20000290 = 0x20000040;
  *(uint32_t*)0x20000040 = r[0];
  *(uint64_t*)0x20000298 = 0;
  syscall(__NR_bpf, /*cmd=*/2ul, /*arg=*/0x20000280ul, /*size=*/0x20ul);
  *(uint64_t*)0x20001080 = 0;
  *(uint32_t*)0x20001088 = 0;
  *(uint64_t*)0x20001090 = 0x200000c0;
  *(uint64_t*)0x200000c0 = 0x20000140;
  memset((void*)0x20000140, 191, 1);
  *(uint64_t*)0x200000c8 = 1;
  *(uint64_t*)0x20001098 = 1;
  *(uint64_t*)0x200010a0 = 0;
  *(uint64_t*)0x200010a8 = 0;
  *(uint32_t*)0x200010b0 = 0;
  *(uint32_t*)0x200010b8 = 0;
  *(uint64_t*)0x200010c0 = 0;
  *(uint32_t*)0x200010c8 = 0;
  *(uint64_t*)0x200010d0 = 0x20000bc0;
  *(uint64_t*)0x20000bc0 = 0x20000580;
  memset((void*)0x20000580, 63, 1);
  *(uint64_t*)0x20000bc8 = 1;
  *(uint64_t*)0x200010d8 = 1;
  *(uint64_t*)0x200010e0 = 0;
  *(uint64_t*)0x200010e8 = 0;
  *(uint32_t*)0x200010f0 = 0;
  *(uint32_t*)0x200010f8 = 0;
  *(uint64_t*)0x20001100 = 0;
  *(uint32_t*)0x20001108 = 0;
  *(uint64_t*)0x20001110 = 0;
  *(uint64_t*)0x20001118 = 0;
  *(uint64_t*)0x20001120 = 0;
  *(uint64_t*)0x20001128 = 0;
  *(uint32_t*)0x20001130 = 0;
  *(uint32_t*)0x20001138 = 0;
  syscall(__NR_sendmmsg, /*fd=*/r[0], /*mmsg=*/0x20001080ul, /*vlen=*/3ul,
          /*f=MSG_MORE|MSG_EOR*/ 0x8080ul);
  *(uint64_t*)0x20000380 = 0x20fff000;
  *(uint32_t*)0x20000388 = 0x1000;
  *(uint64_t*)0x20000398 = 0;
  *(uint32_t*)0x200003a0 = 0;
  *(uint32_t*)0x200003a4 = 0;
  *(uint64_t*)0x200003a8 = 0;
  *(uint64_t*)0x200003b0 = 0;
  *(uint32_t*)0x200003bc = 0;
  *(uint32_t*)0x200004c0 = 0x40;
  syscall(__NR_getsockopt, /*fd=*/r[0], /*level=*/6, /*optname=*/0x23,
          /*optval=*/0x20000380ul, /*optlen=*/0x200004c0ul);
}
int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-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=*/-1,
          /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x21000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}