// https://syzkaller.appspot.com/bug?id=bda19bf6b14e7fddccf28ac6f0205c7df6d8c32e
// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <sys/types.h>

#include <pwd.h>
#include <signal.h>
#include <stdarg.h>
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/endian.h>
#include <sys/syscall.h>
#include <sys/wait.h>
#include <time.h>
#include <unistd.h>

#ifndef SYS___specialfd
#define SYS___specialfd 577
#endif
#ifndef SYS_copy_file_range
#define SYS_copy_file_range 569
#endif

static void kill_and_wait(int pid, int* status)
{
  kill(pid, SIGKILL);
  while (waitpid(-1, status, 0) != pid) {
  }
}

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 execute_one(void);

#define WAIT_FLAGS 0

static void loop(void)
{
  int iter = 0;
  for (;; iter++) {
    int pid = fork();
    if (pid < 0)
      exit(1);
    if (pid == 0) {
      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[9] = {0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0xffffffffffffffff,
                 0xffffffffffffffff, 0x0,
                 0xffffffffffffffff};

void execute_one(void)
{
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  res = syscall(SYS_socket, /*domain=*/0x1cul, /*type=SOCK_STREAM*/ 1ul,
                /*proto=*/0x84);
  if (res != -1)
    r[0] = res;
  *(uint16_t*)0x200000c0 = 0;
  *(uint16_t*)0x200000c2 = 0xaddd;
  *(uint32_t*)0x200000c4 = 0;
  *(uint32_t*)0x200000c8 = 7;
  *(uint32_t*)0x200000cc = 0;
  syscall(SYS_setsockopt, /*fd=*/r[0], /*level=*/0x84, /*opt=*/0x21,
          /*val=*/0x200000c0ul, /*len=*/0x10ul);
  *(uint64_t*)0x20000100 = 0x20000080;
  *(uint8_t*)0x20000080 = 0x1c;
  *(uint8_t*)0x20000081 = 0x1c;
  *(uint16_t*)0x20000082 = htobe16(0x4e20);
  *(uint32_t*)0x20000084 = 0;
  *(uint8_t*)0x20000088 = 0xfe;
  *(uint8_t*)0x20000089 = 0x80;
  memset((void*)0x2000008a, 0, 12);
  *(uint8_t*)0x20000096 = 0;
  *(uint8_t*)0x20000097 = 0xbb;
  *(uint32_t*)0x20000098 = 0;
  *(uint32_t*)0x20000108 = 0x1c;
  *(uint64_t*)0x20000110 = 0x20001600;
  *(uint64_t*)0x20001600 = 0x20000340;
  memset((void*)0x20000340, 247, 1);
  *(uint64_t*)0x20001608 = 1;
  *(uint32_t*)0x20000118 = 1;
  *(uint64_t*)0x20000120 = 0;
  *(uint32_t*)0x20000128 = 0;
  *(uint32_t*)0x2000012c = 0;
  syscall(SYS_sendmsg, /*fd=*/r[0], /*msg=*/0x20000100ul, /*f=*/0ul);
  res = syscall(SYS_dup2, /*oldfd=*/r[0], /*newfd=*/r[0]);
  if (res != -1)
    r[1] = res;
  syscall(SYS_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0ul, /*flags=*/0ul,
          /*mode=*/0ul);
  memcpy((void*)0x200002c0, ".\000", 2);
  syscall(SYS_open, /*file=*/0x200002c0ul, /*flags=*/0ul, /*mode=*/0ul);
  res = syscall(SYS_socket, /*domain=*/0x1cul, /*type=SOCK_STREAM*/ 1ul,
                /*proto=*/0x84);
  if (res != -1)
    r[2] = res;
  syscall(SYS_socket, /*domain=*/2ul, /*type=SOCK_RAW*/ 3ul, /*proto=*/0);
  res = syscall(SYS_socket, /*domain=AF_INET*/ 2ul, /*type=SOCK_STREAM*/ 1ul,
                /*proto=*/0);
  if (res != -1)
    r[3] = res;
  memcpy((void*)0x20000240, "./file1\000", 8);
  syscall(SYS_open, /*file=*/0x20000240ul, /*flags=O_TRUNC*/ 0x400ul,
          /*mode=S_IXOTH|S_IROTH|S_IRGRP*/ 0x25ul);
  res = syscall(SYS_kqueue);
  if (res != -1)
    r[4] = res;
  *(uint64_t*)0x200000c0 = 4;
  *(uint16_t*)0x200000c8 = 0xfffc;
  *(uint16_t*)0x200000ca = 0x4001;
  *(uint32_t*)0x200000cc = 2;
  *(uint64_t*)0x200000d0 = 0x2000000004000000;
  *(uint64_t*)0x200000d8 = 0;
  *(uint64_t*)0x200000e0 = 0;
  *(uint64_t*)0x200000e8 = 0;
  *(uint64_t*)0x200000f0 = 4;
  *(uint64_t*)0x200000f8 = 0;
  syscall(SYS_kevent, /*kqueue=*/r[4], /*changelist=*/0x200000c0ul,
          /*nchanges=*/1ul, /*eventlist=*/0ul, /*nevents=*/0ul,
          /*timeout=*/0ul);
  memcpy((void*)0x20000180, "./file0\000", 8);
  memcpy(
      (void*)0x200001c0,
      "\220\317\243+\000-=\\5\201\262(\214&"
      "\331D\276\227\307\"\336\"\rZ\004\036C\323\313&\266\311:"
      "PM\026SU\357\350\326T\\\223\037\316\031\241#Y\034\f\372\\07\021\321="
      "\261\305\235\266M|\306@\021H\304\004\256Q\377i\\\246?"
      "\362\001O\326\314\355[a\370u}\255\232\270\035\021\a\244\364o\316 "
      "\347\257sZ\261.P\245\306.\351\"w$\017\332\201f\203M&"
      "\231\317nn\242p\024\225\357\253b9x\\\a\366\312p\277\350?\365D\255@"
      "\343\023\263\352\354S\0346\264\331\327$/\213U\341\210/"
      "C\272\264}\210\'+X\362R\341\024\201Q\300\373\017\310n\242\354q\224\317&"
      "\314\343\021\341\342Q\274\324.4\301\355\254\250\225\270\231\347\034",
      208);
  syscall(SYS_extattr_set_link, /*file=*/0x20000180ul,
          /*attrnamespace=EXTATTR_NAMESPACE_USER*/ 1ul,
          /*attrname=*/0x200001c0ul, /*data=*/0ul, /*nbytes=*/0ul);
  memcpy((void*)0x20000040, "./file0\000", 8);
  memcpy(
      (void*)0x200003c0,
      "\220\317\243+\000-=\\5\201\262(\214&"
      "\331D\276\227\307\"\336\"\rZ\004\036C\323\313&\266\311:"
      "PM\026SU\357\350\326T\\\223\037\316\031\241#Y\034\f\372\\07\021\321="
      "\261\305\235\266M|\306@\021H\304\004\256Q\377i\\\246?"
      "\362\001O\326\314\355[a\370u}\255\232\270\035\021\a\244\364o\316 "
      "\347\257sZ\261.P\245\306.\351\"w$\017\332\201f\203M&"
      "\231\317n\256\341p\024\225\357\253b9x\\\a\366\312p\277\350?\365D\255@"
      "\343\023\263\352\354S\0346\264\331\327$/\213U\341\210/"
      "C\272\264}\210\'+X\362R\341\024\201Q\300\373\017\310n\242\354q\224\317&"
      "\314\343\021\341\342Q\274\324.4\301\355\254\250\225\270\231\347\034",
      208);
  syscall(SYS_extattr_delete_link, /*file=*/0x20000040ul,
          /*attrnamespace=EXTATTR_NAMESPACE_USER*/ 1ul,
          /*attrname=*/0x200003c0ul);
  memcpy((void*)0x20000040, "/dev/filemon\000", 13);
  res = syscall(SYS_openat, /*fd=*/0xffffffffffffff9cul, /*file=*/0x20000040ul,
                /*flags=*/0ul, /*mode=*/0ul);
  if (res != -1)
    r[5] = res;
  syscall(SYS_sendto, /*fd=*/r[2], /*buf=*/0ul, /*len=*/0ul, /*f=MSG_OOB*/ 1ul,
          /*addr=*/0ul, /*addrlen=*/0ul);
  syscall(SYS_sendmsg, /*fd=*/-1, /*msg=*/0ul,
          /*f=MSG_EOF|MSG_DONTROUTE*/ 0x104ul);
  *(uint32_t*)0x20000540 = 0;
  *(uint32_t*)0x20000544 = 0;
  res =
      syscall(SYS___specialfd, /*type=*/1ul, /*req=*/0x20000540ul, /*len=*/8ul);
  if (res != -1)
    r[6] = res;
  *(uint32_t*)0x20000000 = r[6];
  syscall(SYS_ioctl, /*fd=*/r[5], /*cmd=*/0xc0045301ul, /*arg=*/0x20000000ul);
  res = syscall(SYS_setsid);
  if (res != -1)
    r[7] = res;
  *(uint32_t*)0x200002c0 = r[7];
  syscall(SYS_ioctl, /*fd=*/r[5], /*cmd=*/0xc0045302ul, /*arg=*/0x200002c0ul);
  memcpy((void*)0x20000240, "./file1\000", 8);
  syscall(SYS_open, /*file=*/0x20000240ul, /*flags=O_NOCTTY*/ 0x8000ul,
          /*mode=S_IXGRP|S_IWUSR*/ 0x88ul);
  memcpy((void*)0x20000840, "./file1\000", 8);
  res = syscall(SYS_open, /*file=*/0x20000840ul,
                /*flags=O_SYNC|O_CREAT|FASYNC|O_RDWR|0x4000040000000000*/
                0x40000400000002c2ul, /*mode=*/0ul);
  if (res != -1)
    r[8] = res;
  syscall(SYS_pwritev, /*fd=*/r[8], /*vec=*/0x20000140ul, /*vlen=*/0ul,
          /*off=*/0ul);
  syscall(SYS_copy_file_range, /*infd=*/r[3], /*inoffp=*/0ul, /*outfd=*/r[1],
          /*outoffp=*/0ul, /*len=*/0xfffffffffffffffdul, /*flags=*/0ul);
  syscall(SYS_vfork);
  syscall(SYS_rfork, /*flags=*/0ul);
}
int main(void)
{
  syscall(SYS_mmap, /*addr=*/0x20000000ul, /*len=*/0x1000000ul,
          /*prot=PROT_WRITE|PROT_READ|PROT_EXEC*/ 7ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x1012ul, /*fd=*/-1,
          /*offset=*/0ul);
  const char* reason;
  (void)reason;
  loop();
  return 0;
}