GNU bug report logs - #33133
26.1.50; zlib-decompress-region too rigid

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From: Noam Postavsky <npostavs <at> gmail.com>
To: Katsumi Yamaoka <yamaoka <at> jpl.org>
Cc: Kevin Ryde <user42_kevin <at> yahoo.com.au>, 33133 <at> debbugs.gnu.org
Subject: bug#33133: 26.1.50; zlib-decompress-region too rigid
Date: Sat, 27 Oct 2018 17:48:26 -0400

[Message part 1 (text/plain, inline)]

tags 33133 + patch
quit

Katsumi Yamaoka <yamaoka <at> jpl.org> writes:

> On Tue, 23 Oct 2018 20:26:59 -0400, Noam Postavsky wrote:
>> --- i/src/decompress.c
>> +++ w/src/decompress.c
>> @@ -206,7 +206,7 @@ DEFUN ("zlib-decompress-region", Fzlib_decompress_region,
>
>>    while (inflate_status == Z_OK);
>
>> -  if (inflate_status != Z_STREAM_END)
>> +  if (inflate_status != Z_STREAM_END && inflate_status != Z_BUF_ERROR)
>>      return unbind_to (count, Qnil);
>
>>    unwind_data.start = 0;
>
> I confirmed that it makes it work for the corrupted web site in
> question.  Thank you!

Here's a proper patch.

[v1-0001-Allow-partial-decompression-Bug-33133.patch (text/plain, attachment)]

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