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Re: Is it possible to overflow baton->size in dwarf_mark_symbols_computed() in dwarf2read.c?

From: Jim Blandy <jimb at redhat dot com>
To: Daniel Jacobowitz <drow at false dot org>
Cc: "Cuthbertson, Reva D." <reva_cuthbertson at hp dot com>, gdb at sources dot redhat dot com
Date: 16 May 2005 15:23:44 -0500
Subject: Re: Is it possible to overflow baton->size in dwarf_mark_symbols_computed() in dwarf2read.c?
References: <B6C7F31B85669143825614FC8FE64929040F79FE@cacexc04.americas.cpqcorp.net><20050513153945.GA9246@nevyn.them.org>

Daniel Jacobowitz <drow@false.org> writes:
> No.  It should saturate instead; it only needs to be longer than any
> supported location list/expression, and 64k is entirely reasonable for
> that.  Int would waste a lot of memory.

Both those structures are twelve bytes long anyway.  Their 'size'
fields are followed by two bytes of padding on IA-32.

References:
- RE: Is it possible to overflow baton->size in dwarf_mark_symbols_computed() in dwarf2read.c?
  - From: Cuthbertson, Reva D.
- Re: Is it possible to overflow baton->size in dwarf_mark_symbols_computed() in dwarf2read.c?
  - From: Daniel Jacobowitz

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