Fixes: null pointer dereference Fixes: signed integer overflow: 512 * 2147483647 cannot be represented in type 'int' Fixes: 17809/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_XMA1_fuzzer-5634409947987968
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/wmaprodec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavcodec/wmaprodec.c b/libavcodec/wmaprodec.c index d0fa974c80..6ce2dd4adb 100644 --- a/libavcodec/wmaprodec.c +++ b/libavcodec/wmaprodec.c @@ -1902,7 +1902,9 @@ static av_cold int xma_decode_init(AVCodecContext *avctx) } /* encoder supports up to 64 streams / 64*2 channels (would have to alloc arrays) */ - if (avctx->channels > XMA_MAX_CHANNELS || s->num_streams > XMA_MAX_STREAMS) { + if (avctx->channels > XMA_MAX_CHANNELS || s->num_streams > XMA_MAX_STREAMS || + s->num_streams <= 0 + ) { avpriv_request_sample(avctx, "More than %d channels in %d streams", XMA_MAX_CHANNELS, s->num_streams); return AVERROR_PATCHWELCOME; } -- 2.23.0 _______________________________________________ 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".
