From: Mark H Weaver <mhw@netris.org>
To: "Göran Weinholt" <goran@weinholt.se>
Cc: 15100-done@debbugs.gnu.org
Subject: bug#15100: Division by zero in bytevector->uint-list
Date: Fri, 16 Aug 2013 23:19:15 -0400 [thread overview]
Message-ID: <87pptdgg24.fsf@tines.lan> (raw)
In-Reply-To: <87li438bev.fsf@industria.weinholt.se> ("Göran Weinholt"'s message of "Thu, 15 Aug 2013 13:02:16 +0200")
Göran Weinholt <goran@weinholt.se> writes:
> the bytevector->uint-list procedure from (rnrs) can crash Guile through
> a division by zero:
>
> scheme@(guile-user)> (import (rnrs))
> scheme@(guile-user)> (bytevector->uint-list #vu8(0) 'x 0)
> Floating point exception
>
> The same happens with bytevector->sint-list.
Fixed in 088cfb7d761b01a2620d78f10e8dbcaa07485a32.
> These procedures also do not check that the length of the bytevector
> is divisible by the size.
I don't think we can fix this in stable-2.0, because some existing code
might depend on our current permissive behavior. However, I fixed it on
the master branch in c099201da1de71652b9791fb0a3a863b6d3c355d.
Thanks!
Mark
prev parent reply other threads:[~2013-08-17 3:19 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-15 11:02 bug#15100: Division by zero in bytevector->uint-list Göran Weinholt
2013-08-17 3:19 ` Mark H Weaver [this message]
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