Re: [49/74] netfilter: h323: bug in parsing of ASN1 SEQOF field

From: Patrick McHardy
Date: Wed Apr 13 2011 - 12:03:50 EST


Am 13.04.2011 17:51, schrieb Greg KH:
> 2.6.32-longterm review patch. If anyone has any objections, please let us know.
>
> ------------------
>
> From: David Sterba <dsterba@xxxxxxx>
>
> commit b4232a22776aa5d063f890d21ca69870dbbe431b upstream.
>
> Static analyzer of clang found a dead store which appears to be a bug in
> reading count of items in SEQOF field, only the lower byte of word is
> stored. This may lead to corrupted read and communication shutdown.
>
> The bug has been in the module since it's first inclusion into linux
> kernel.
>
> [Patrick: the bug is real, but without practical consequence since the
> largest amount of sequence-of members we parse is 30.]

As mentioned in the changelog, I don't think this patch is of any
relevance for -stable since its a purely theoretical problem.
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