Wireshark-bugs: [Wireshark-bugs] [Bug 12676] Dissector bug, protocol CIP: C:\buildbot\wireshark

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From: bugzilla-daemon@xxxxxxxxxxxxx
Date: Thu, 28 Jul 2016 12:30:36 +0000

changed bug 12676


What Removed Added
CC   [email protected]

Comment # 2 on bug 12676 from 
The assert is due to my change I44cb3ce8e647ae2816d5ffa95435068c435a1e5c
because the CIP dissector calls proto_tree_add_subtree() with a NULL tvb
pointer...
Now that we are checking the validity of the length given, this call becomes
invalid.
I could skip the bound checks if no tvb is being given but the current code
seems wrong in the first place.
I propose to keep the bound checks as is and fix CIP dissector. Is it OK? Or
should we skip the bound checks in that case?

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