[FFmpeg-devel] [PATCH] avformat/hlsenc: initialize saveptrs

Timo Rothenpieler timo at rothenpieler.org
Sun Mar 25 11:13:41 EEST 2018


Am 21.03.2018 um 20:37 schrieb Timo Rothenpieler:
> Am 21.03.2018 um 20:33 schrieb Timo Rothenpieler:
>> av_strtok calls strspn on a non-NULL *saveptr, so not NULL 
>> initializing it is an issue.
>>
>> Fixes CID #1428568
>> ---
>>   libavformat/hlsenc.c | 3 ++-
>>   1 file changed, 2 insertions(+), 1 deletion(-)
>>
>> diff --git a/libavformat/hlsenc.c b/libavformat/hlsenc.c
>> index b7c6fbde6a..fa17776efe 100644
>> --- a/libavformat/hlsenc.c
>> +++ b/libavformat/hlsenc.c
>> @@ -1873,7 +1873,8 @@ static int 
>> parse_cc_stream_mapstring(AVFormatContext *s)
>>   {
>>       HLSContext *hls = s->priv_data;
>>       int nb_ccstreams;
>> -    char *p, *q, *saveptr1, *saveptr2, *ccstr, *keyval;
>> +    char *p, *q, *ccstr, *keyval;
>> +    char *saveptr1 = NULL, *saveptr2 = NULL;
>>       const char *val;
>>       ClosedCaptionsStream *ccs;
> 
> Just realized, the more correct approach is probably to check the 
> av_strdup below this for ENOMEM. Not sure about the exact semantics 
> there, initializing these still seems like a good safety measure.
> 

ping

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