Re: [FFmpeg-devel] [PATCH 2/4] avcodec/tta: Limit decoder to 16 channels
On Fri, Jun 28, 2019 at 10:53:43PM +0200, Michael Niedermayer wrote: > libtta 2.3 has a limit of 6 channels, so 16 is substantially above the > "official" already > > Fixes: OOM > Fixes: > 15249/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5643988125614080 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer > --- > libavcodec/tta.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) will apply [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB Dictatorship: All citizens are under surveillance, all their steps and actions recorded, for the politicians to enforce control. Democracy: All politicians are under surveillance, all their steps and actions recorded, for the citizens to enforce control. signature.asc Description: PGP signature ___ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
[FFmpeg-devel] [PATCH 2/4] avcodec/tta: Limit decoder to 16 channels
libtta 2.3 has a limit of 6 channels, so 16 is substantially above the
"official" already
Fixes: OOM
Fixes:
15249/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5643988125614080
Found-by: continuous fuzzing process
https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer
---
libavcodec/tta.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/tta.c b/libavcodec/tta.c
index c7702610b6..4d27fcd555 100644
--- a/libavcodec/tta.c
+++ b/libavcodec/tta.c
@@ -163,7 +163,7 @@ static av_cold int tta_decode_init(AVCodecContext * avctx)
s->data_length = get_bits_long(&gb, 32);
skip_bits_long(&gb, 32); // CRC32 of header
-if (s->channels == 0) {
+if (s->channels == 0 || s->channels > 16) {
av_log(avctx, AV_LOG_ERROR, "Invalid number of channels\n");
return AVERROR_INVALIDDATA;
} else if (avctx->sample_rate == 0) {
--
2.22.0
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