On Fri, Jun 20, 2025 at 8:40 AM Michael Niedermayer <mich...@niedermayer.cc> wrote:
> Fixes: integer overflow > Fixes: > 418314174/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VVC_fuzzer-4871731867353088 > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by > <https://github.com/google/oss-fuzz/tree/master/projects/ffmpegSigned-off-by>: > Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/vvc/ctu.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/libavcodec/vvc/ctu.c b/libavcodec/vvc/ctu.c > index ba4c89b1d1b..7fa2b496389 100644 > --- a/libavcodec/vvc/ctu.c > +++ b/libavcodec/vvc/ctu.c > @@ -2053,6 +2053,8 @@ static int palette_subblock_data(VVCLocalContext *lc, > const int v = PALETTE_INDEX(xc, yc); > if (v == esc) { > const int coeff = ff_vvc_palette_escape_val(lc); > A check for < 0 is needed. > + if (coeff >= (1U << sps->bit_depth)) > + return AVERROR_INVALIDDATA; const int pixel = av_clip_intp2(RSHIFT(coeff * scale, > 6), sps->bit_depth); > PALETTE_SET_PIXEL(xc, yc, pixel); > } else { > -- > 2.49.0 > > _______________________________________________ > 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". > _______________________________________________ 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".
