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avformat/avs: Use 64bit for the avio_tell() output

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Fixes: signed integer overflow: 9223372036854775807 - -1 cannot be represented in type 'long'
Fixes: 26549/clusterfuzz-testcase-minimized-ffmpeg_dem_AVS_fuzzer-4844306424397824

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2020-10-25 00:23:10 +02:00
parent 40348637be
commit 1278f117d7
1 changed files with 2 additions and 1 deletions
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3
libavformat/avs.c
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@ -128,7 +128,8 @@ avs_read_video_packet(AVFormatContext * s, AVPacket * pkt,
static int avs_read_audio_packet(AVFormatContext * s, AVPacket * pkt)
{
AvsFormat *avs = s->priv_data;
int ret, size;
int ret;
int64_t size;
size = avio_tell(s->pb);
ret = ff_voc_get_packet(s, pkt, avs->st_audio, avs->remaining_audio_size);