Servus Michael, On Thu, Jun 19, 2025 at 5:05 AM Michael Niedermayer <mich...@niedermayer.cc> wrote: > > Fixes: > 410609432/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SANM_fuzzer-4935159201988608 > Fixes: out of array access > > Found-by: continuous fuzzing process > https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > --- > libavcodec/sanm.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/libavcodec/sanm.c b/libavcodec/sanm.c > index 642ef02bff2..02bb78859a8 100644 > --- a/libavcodec/sanm.c > +++ b/libavcodec/sanm.c > @@ -1670,6 +1670,8 @@ static int process_frame_obj(SANMVideoContext *ctx, > GetByteContext *gb) > /* Rebel Assault 1: 384x242 internal size */ > xres = 384; > yres = 242; > + if (w > xres || h > yres) > + return AVERROR_INVALIDDATA; > ctx->have_dimensions = 1; > } else if (codec == 37 || codec == 47 || codec == 48) { > /* these codecs work on full frames, trust their dimensions */
This is OK, it does not impact "legitimate" Videos. Thanks! Manuel _______________________________________________ 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".