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Bug ID	8352
Summary	MP2T dissector tries to combine empty fragments
Classification	Unclassified
Product	Wireshark
Version	1.6.13
Hardware	All
URL	https://bugs.wireshark.org/bugzilla/attachment.cgi?id=9988
OS	All
Status	CONFIRMED
Severity	Major
Priority	Medium
Component	Dissection engine (libwireshark)
Assignee	bugzilla-admin@wireshark.org
Reporter	jaap.keuter@xs4all.nl

Build Information:
1.6, 1.8, SVN.
--
Follow up from bug 8321.

> > > In other news: this capture exposes an mp2t dissector bug. When adding a
> > > zero length fragment to a composite the TVB asserts that.
> > 
> > This is still a bug though.
> 
> GDB is giving me all sorts of weird internal errors when I try to debug this
> but Valgrind doesn't show anything unusual. I'm not sure if my GDB is borked
> or if there's something really subtle going on here.
> 
> I haven't even been able to determine if we're somehow getting a 0-length
> fragment (so the assertion is from packet-mp2t.c:491) or if we're getting a
> 0-length subset to append (so the assertion is from packet-mp2t.c:494). GDB
> doesn't want to let me step through any of the code in that area.

Stop earlier; why if frag->len == 0?

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