On 4/3/19, Michael Niedermayer <mich...@niedermayer.cc> wrote: > Fixes: out of array access > Fixes: > 13997/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AGM_fuzzer-5701427252428800 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/agm.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/libavcodec/agm.c b/libavcodec/agm.c > index b0e8b80f81..2d2092222d 100644 > --- a/libavcodec/agm.c > +++ b/libavcodec/agm.c > @@ -562,7 +562,8 @@ static int decode_frame(AVCodecContext *avctx, void > *data, > > for (int i = 0; i < 3; i++) > s->size[i] = bytestream2_get_le32(gbyte); > - if (32LL + s->size[0] + s->size[1] + s->size[2] > avpkt->size) > + if (s->size[0] < 0 || s->size[1] < 0 || s->size[2] < 0 || > + 32LL + s->size[0] + s->size[1] + s->size[2] > avpkt->size) > return AVERROR_INVALIDDATA; > > if ((ret = ff_get_buffer(avctx, frame, AV_GET_BUFFER_FLAG_REF)) < 0) > -- > 2.21.0 > > _______________________________________________ > 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".
OK _______________________________________________ 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".
