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Re: [patch] Fix for heap overflow in wscanf (BZ 16618)
- From: Andreas Schwab <schwab at suse dot de>
- To: Rich Felker <dalias at libc dot org>
- Cc: Paul Eggert <eggert at cs dot ucla dot edu>, Carlos O'Donell <carlos at redhat dot com>, Paul Pluzhnikov <ppluzhnikov at google dot com>, libc-alpha at sourceware dot org
- Date: Wed, 04 Feb 2015 09:39:53 +0100
- Subject: Re: [patch] Fix for heap overflow in wscanf (BZ 16618)
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- References: <mvmiofkiqaj dot fsf at hawking dot suse dot de> <CALoOobPyDepfTFp=_y50iKHxAhKV8W+ZkUiV6e-2O=kgpT_08g at mail dot gmail dot com> <87twz4xidl dot fsf at igel dot home> <CALoOobNFbi8csanuAGDwebQeojNWsSqj+6g6w-J94hZ8POOZiw at mail dot gmail dot com> <54D0F628 dot 3000808 at redhat dot com> <20150203180129 dot GP23507 at brightrain dot aerifal dot cx> <54D10E16 dot 7050601 at redhat dot com> <20150203184139 dot GQ23507 at brightrain dot aerifal dot cx> <54D11FE6 dot 9020905 at redhat dot com> <54D163CC dot 30008 at cs dot ucla dot edu> <20150204002749 dot GS23507 at brightrain dot aerifal dot cx>
Rich Felker <dalias@libc.org> writes:
> Interesting. Unfortunately this makes it impossible for the
> application to observe the "valid memory was unable to be freed"
> condition that occurs when you can't split a vma.
Just like today (not reliably anyway).
Andreas.
--
Andreas Schwab, SUSE Labs, schwab@suse.de
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