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0x000000CDBSODCritical

0x000000CD — Page Fault Beyond End of Allocation | Blue Screen Fix Guide

PAGE_FAULT_BEYOND_END_OF_ALLOCATION

Windows XPWindows VistaWindows 7Windows 8Windows 10Windows 11

What Does 0x000000CD Mean?

A driver accessed memory beyond the end of a Special Pool allocation (buffer overflow).

Real-World Causes

  1. 1Buffer overflow in driver
  2. 2Driver writing past end of allocation
  3. 3Off-by-one error in buffer access

Symptoms

  • ⚠Blue screen with stop code PAGE_FAULT_BEYOND_END_OF_ALLOCATION
  • ⚠System reboots unexpectedly
  • ⚠Possible data loss from unsaved work

DIY Fix

Beginner-friendly steps you can try at home

  1. 1Restart your computer
  2. 2Run Windows Memory Diagnostic (mdsched.exe)
  3. 3Reseat RAM modules
  4. 4Check for Windows updates

Advanced Fix

For experienced users and IT professionals

  1. 1Test RAM with MemTest86 for multiple passes
  2. 2Analyze minidump with WinDbg
  3. 3Check for memory leaks using poolmon
  4. 4Inspect physical RAM slots and modules

Frequently Asked Questions

What causes PAGE_FAULT_BEYOND_END_OF_ALLOCATION?
A driver accessed memory beyond the end of a Special Pool allocation (buffer overflow).
Can I fix Page Fault Beyond End of Allocation myself?
In many cases yes. Start with basic troubleshooting like restarting, updating drivers, and running System File Checker. If the issue persists, advanced analysis of crash dumps may be needed.

Related Error Codes

0x000000CCPage Fault in Freed Special Pool0x000000C1Special Pool Detected Memory Corruption

About the Author

Windows Troubleshooting Team

Verified against official Microsoft documentation and real-world diagnostic data. Error behavior confirmed across Windows 10, Windows 11, and Windows Server.