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From: Kenichi Handa <handa@m17n.org>
To: Chong Yidong <cyd@stupidchicken.com>
Cc: h-fujishima@sakura.ad.jp, 2370@emacsbugs.donarmstrong.com
Subject: bug#2370: 23.0.90; decode-coding-region make emacs crash
Date: Thu, 19 Feb 2009 12:56:42 +0900	[thread overview]
Message-ID: <E1La01i-0005wg-DP@etlken> (raw)
In-Reply-To: <87d4dfqg5h.fsf@cyd.mit.edu> (message from Chong Yidong on Wed, 18 Feb 2009 22:06:34 -0500)

In article <87d4dfqg5h.fsf@cyd.mit.edu>, Chong Yidong <cyd@stupidchicken.com> writes:

> Kenichi Handa <handa@m17n.org> writes:
> > I found two bugs related to this problem, and just installed
> > a fix for one of them.  Now the above specific problem
> > should be fixed.  I'll keep on workning to fix the other bug
> > to make the decoding more robust.

> Thanks.  I think decode_coding should also verify the size of the
> unprocessed bytes before writing them to coding->carrover.  This way,
> future bugs of this sort will not cause memory corruption (which might
> be a security concern).  What's your opinion?

Yes.  I'm going to add such a check.

But it doesn't solve the underlying problem of handling too
long (and wrong) composition sequence in iso-2022 decoding.
Solving it requires a little bit more time.

---
Kenichi Handa
handa@m17n.org






  reply	other threads:[~2009-02-19  3:56 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-19  0:17 bug#2370: 23.0.90; decode-coding-region make emacs crash Chong Yidong
2009-02-19  2:46 ` Kenichi Handa
2009-02-19  3:06   ` Chong Yidong
2009-02-19  3:56     ` Kenichi Handa [this message]
2009-02-19  4:14   ` Eli Zaretskii
  -- strict thread matches above, loose matches on Subject: below --
2009-02-18  3:39 Hiroshi Fujishima

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