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Bugcheck 7F with VirusScan Enterprise 8.8 Patch 6 installed
Technical Articles ID:   KB86259
Last Modified:  4/7/2017
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Environment

McAfee Data Loss Prevention Endpoint (DLPe) 9.3 Patch 2
McAfee Agent 5.0.2
McAfee VirusScan Enterprise (VSE) 8.8 Patch 6

Problem

A blue screen error occurs randomly (Bugcheck 7F) citing mfeaack.sys as the probable cause of failure.

System Change

Installed VSE 8.8 Patch 6, McAfee Agent 5.0.2, or another McAfee product that includes mfeaack.sys version 15.4.0.674.

Cause

The exception occurs due to memory corruption, which can occur at seemingly random times. The bugcheck itself appears to be random, as a code path encounters the corrupted memory sector. The memory corruption occurs due to a race condition when mfeaack.sys version 15.4.0.674 is installed along with VirusScan Enterprise 8.8 (any patch level).

Products that currently install mfeaack.sys 15.4.0.674 include VSE 8.8 Patch 6, MA 5.0.2, and DLPe 9.3 patch 2 (9.3.600).

Solution

This issue is resolved in VSE 8.8 Patch 7. Patches are cumulative; Technical Support recommends that you install the latest one.

Updates are available when you log on to the ServicePortal at: https://support.mcafee.com/downloads.

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