// autogenerated by syzkaller (https://github.com/google/syzkaller)

#define _GNU_SOURCE

#include <endian.h>
#include <fcntl.h>
#include <sched.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

static long syz_open_dev(volatile long a0, volatile long a1, volatile long a2)
{
  if (a0 == 0xc || a0 == 0xb) {
    char buf[128];
    sprintf(buf, "/dev/%s/%d:%d", a0 == 0xc ? "char" : "block", (uint8_t)a1,
            (uint8_t)a2);
    return open(buf, O_RDWR, 0);
  } else {
    unsigned long nb = a1;
    char buf[1024];
    char* hash;
    strncpy(buf, (char*)a0, sizeof(buf) - 1);
    buf[sizeof(buf) - 1] = 0;
    while ((hash = strchr(buf, '#'))) {
      *hash = '0' + (char)(nb % 10);
      nb /= 10;
    }
    return open(buf, a2, 0);
  }
}

#define USLEEP_FORKED_CHILD (3 * 50 * 1000)

static long handle_clone_ret(long ret)
{
  if (ret != 0) {
    return ret;
  }
  usleep(USLEEP_FORKED_CHILD);
  syscall(__NR_exit, 0);
  while (1) {
  }
}

static long syz_clone(volatile long flags, volatile long stack,
                      volatile long stack_len, volatile long ptid,
                      volatile long ctid, volatile long tls)
{
  long sp = (stack + stack_len) & ~15;
  long ret = (long)syscall(__NR_clone, flags & ~CLONE_VM, sp, ptid, ctid, tls);
  return handle_clone_ret(ret);
}

uint64_t r[1] = {0xffffffffffffffff};

int main(void)
{
  syscall(__NR_mmap, /*addr=*/0x1ffffffff000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*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=*/0x200001000000ul, /*len=*/0x1000ul, /*prot=*/0ul,
          /*flags=MAP_FIXED|MAP_ANONYMOUS|MAP_PRIVATE*/ 0x32ul,
          /*fd=*/(intptr_t)-1, /*offset=*/0ul);
  const char* reason;
  (void)reason;
  intptr_t res = 0;
  if (write(1, "executing program\n", sizeof("executing program\n") - 1)) {
  }
  //  syz_open_dev$usbfs arguments: [
  //    dev: ptr[in, buffer] {
  //      buffer: {2f 64 65 76 2f 62 75 73 2f 75 73 62 2f 30 30 23 2f 30 30 23
  //      00} (length 0x15)
  //    }
  //    id: intptr = 0x204 (8 bytes)
  //    flags: open_flags = 0x2 (8 bytes)
  //  ]
  //  returns fd_usbfs
  memcpy((void*)0x2000000000c0, "/dev/bus/usb/00#/00#\000", 21);
  res = -1;
  res = syz_open_dev(/*dev=*/0x2000000000c0, /*id=*/0x204, /*flags=O_RDWR*/ 2);
  if (res != -1)
    r[0] = res;
  //  mmap arguments: [
  //    addr: VMA[0x400000]
  //    len: len = 0x400000 (8 bytes)
  //    prot: mmap_prot = 0x1000002 (8 bytes)
  //    flags: mmap_flags = 0x11012 (8 bytes)
  //    fd: fd (resource)
  //    offset: intptr = 0x108000 (8 bytes)
  //  ]
  syscall(__NR_mmap, /*addr=*/0x200000000000ul, /*len=*/0x400000ul,
          /*prot=PROT_GROWSDOWN|PROT_WRITE*/ 0x1000002ul,
          /*flags=MAP_NONBLOCK|MAP_FIXED|MAP_EXECUTABLE|0x2*/ 0x11012ul,
          /*fd=*/r[0], /*offset=*/0x108000ul);
  //  syz_clone arguments: [
  //    flags: clone_flags = 0x2001100 (8 bytes)
  //    stack: nil
  //    stack_len: bytesize = 0x0 (8 bytes)
  //    parentid: nil
  //    childtid: nil
  //    tls: nil
  //  ]
  //  returns pid
  syz_clone(/*flags=CLONE_PIDFD|CLONE_NEWCGROUP|CLONE_VM*/ 0x2001100,
            /*stack=*/0, /*stack_len=*/0, /*parentid=*/0, /*childtid=*/0,
            /*tls=*/0);
  return 0;
}