Michael Niedermayer: > On Tue, Jul 19, 2022 at 08:37:38AM -0300, James Almer wrote: >> >> >> On 7/19/2022 8:34 AM, Michael Niedermayer wrote: >>> Fixes: Timeout >>> Fixes: >>> 49160/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_FFV1_fuzzer-5672826144686080 >>> >>> Found-by: continuous fuzzing process >>> https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg >>> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> >>> --- >>> libavcodec/ffv1dec.c | 6 +++++- >>> 1 file changed, 5 insertions(+), 1 deletion(-) >>> >>> diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c >>> index 01ddcaa512..9bdac0be4e 100644 >>> --- a/libavcodec/ffv1dec.c >>> +++ b/libavcodec/ffv1dec.c >>> @@ -883,7 +883,11 @@ static int decode_frame(AVCodecContext *avctx, AVFrame >>> *rframe, >>> if (buf_size < avctx->width * avctx->height / (128*8)) >>> return AVERROR_INVALIDDATA; >>> } else { >>> - if (buf_size < avctx->height / 8) >>> + int i; >> >> for (int i... > > will apply with that change > > thx >
James' suggestion made you use an uninitialized i in the actual check; and even the original check is wrong, as one can overrun ff_log2_run (unless there is a check that I am not missing). So it seems to me that reverting 15785e044ee1265464bb4f3ed727e2a8074f97b4 is appropriate. - Andreas _______________________________________________ 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".
