[FFmpeg-devel] [PATCHv2 3/3] avfilter/f_setcmd: fix null pointer dereference on using dash as interval

Marton Balint cus at passwd.hu
Sun Feb 19 17:55:55 EET 2017


On Thu, 9 Feb 2017, Paul B Mahol wrote:

> On 2/9/17, Marton Balint <cus at passwd.hu> wrote:
>> Fixes Coverity CID 1396259.
>>
>> Signed-off-by: Marton Balint <cus at passwd.hu>
>> ---
>>  libavfilter/f_sendcmd.c | 7 +++++++
>>  1 file changed, 7 insertions(+)
>>
>> diff --git a/libavfilter/f_sendcmd.c b/libavfilter/f_sendcmd.c
>> index fb30220..522d6ad 100644
>> --- a/libavfilter/f_sendcmd.c
>> +++ b/libavfilter/f_sendcmd.c
>> @@ -268,6 +268,13 @@ static int parse_interval(Interval *interval, int
>> interval_count,
>>          char *start, *end;
>>
>>          start = av_strtok(intervalstr, "-", &end);
>> +        if (!start) {
>> +            ret = AVERROR(EINVAL);
>> +            av_log(log_ctx, AV_LOG_ERROR,
>> +                   "Invalid interval specification '%s' in interval #%d\n",
>> +                   intervalstr, interval_count);
>> +            goto end;
>> +        }
>>          if ((ret = av_parse_time(&interval->start_ts, start, 1)) < 0) {
>>              av_log(log_ctx, AV_LOG_ERROR,
>>                     "Invalid start time specification '%s' in interval
>> #%d\n",
>> --
>> 2.10.2
>>
>> _______________________________________________
>> ffmpeg-devel mailing list
>> ffmpeg-devel at ffmpeg.org
>> http://ffmpeg.org/mailman/listinfo/ffmpeg-devel
>>
>
> lgtm

Thanks, pushed.

Regards,
Marton


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