Upgrade VDA to 2203 CU1/CU2 crashes with BSOD for pdcrypt2.sys

Upgrade VDA to 2203 CU1/CU2 crashes with BSOD for pdcrypt2.sys

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Article ID: CTX552504

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Updated On:

Description

Citrix VDA crash with blue screen post upgrade to 2203 CU2

Stop code: SYSTEM THREAD EXCEPTION NOT HANDLED
What failed: pdcrypt2.sys
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Environment

The above mentioned sample code is provided to you as is with no representations, warranties or conditions of any kind. You may use, modify and distribute it at your own risk. CITRIX DISCLAIMS ALL WARRANTIES WHATSOEVER, EXPRESS, IMPLIED, WRITTEN, ORAL OR STATUTORY, INCLUDING WITHOUT LIMITATION WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NONINFRINGEMENT. Without limiting the generality of the foregoing, you acknowledge and agree that (a) the sample code may exhibit errors, design flaws or other problems, possibly resulting in loss of data or damage to property; (b) it may not be possible to make the sample code fully functional; and (c) Citrix may, without notice or liability to you, cease to make available the current version and/or any future versions of the sample code. In no event should the code be used to support ultra-hazardous activities, including but not limited to life support or blasting activities. NEITHER CITRIX NOR ITS AFFILIATES OR AGENTS WILL BE LIABLE, UNDER BREACH OF CONTRACT OR ANY OTHER THEORY OF LIABILITY, FOR ANY DAMAGES WHATSOEVER ARISING FROM USE OF THE SAMPLE CODE, INCLUDING WITHOUT LIMITATION DIRECT, SPECIAL, INCIDENTAL, PUNITIVE, CONSEQUENTIAL OR OTHER DAMAGES, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. Although the copyright in the code belongs to Citrix, any distribution of the sample code should include only your own standard copyright attribution, and not that of Citrix. You agree to indemnify and defend Citrix against any and all claims arising from your use, modification or distribution of the sample code.

Resolution

This is a known issue, and the fix is released in CVAD 2203 CU3 against the reference CVADHELP-20207.

  1. Upgrade VDAs to 2203 CU3 or later.
Note: Validate the support, and maintenance timelines at https://www.citrix.com/support/product-lifecycle/product-matrix.html for the respective CVAD/VDA version before upgrading it to ensure to receive support from Citrix Technical Support in case of any challenges.

Problem Cause

The issue is observed when the network was disconnected before PdRawInput() -> InitSessionKey() was called at the first connection causing a timing issue, and the session terminates before the key for secure ICA gets generated