[FFmpeg-devel] [PATCH] make tmv.c check packet sizes before reading

[Michael Niedermayer]

On Sat, May 16, 2009 at 07:56:31PM +0200, Vitor Sessak wrote:
> Michael Niedermayer wrote:
>> On Sat, May 16, 2009 at 06:24:42PM +0200, Vitor Sessak wrote:
>>> $subj, should fix this FATE test: 
>>> http://fate.multimedia.cx/index.php?test_result=15593100
>>>
>>> -Vitor
>>>  tmv.c |    7 +++++++
>>>  1 file changed, 7 insertions(+)
>>> 74c0725abcfcd5541ed4933d44603df895e58fce  tmv.diff
>>> Index: libavcodec/tmv.c
>>> ===================================================================
>>> --- libavcodec/tmv.c	(revision 18855)
>>> +++ libavcodec/tmv.c	(working copy)
>>> @@ -52,6 +52,13 @@
>>>          return -1;
>>>      }
>>>  +    if (avpkt->size < 2*char_rows*char_cols) {
>>> +        av_log(avctx, AV_LOG_ERROR,
>>> +               "Input buffer too small, truncated sample?\n");
>>> +        *data_size = 0;
>>> +        return 0;
>> it should be some negative number 
>
> -1 ?

fine

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

While the State exists there can be no freedom; when there is freedom there
will be no State. -- Vladimir Lenin
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