ffmpeg | branch: release/6.1 | Michael Niedermayer <mich...@niedermayer.cc> | Tue Mar 26 02:52:04 2024 +0100| [4cbc9bb2c9622f082c07829822fdc4d91e65a65c] | committer: Michael Niedermayer
avcodec/truemotion1: Height not being a multiple of 4 is unsupported mb_change_bits is given space based on height >> 2, while more data is read Fixes: out of array access Fixes: 62285/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TRUEMOTION1_fuzzer-5201925062590464.fuzz Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> (cherry picked from commit ebdcf9849905fdd67dcd3ab93e55e47ded35fda2) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=4cbc9bb2c9622f082c07829822fdc4d91e65a65c --- libavcodec/truemotion1.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/truemotion1.c b/libavcodec/truemotion1.c index 6b0ee22569..784576d01b 100644 --- a/libavcodec/truemotion1.c +++ b/libavcodec/truemotion1.c @@ -408,6 +408,11 @@ static int truemotion1_decode_header(TrueMotion1Context *s) return AVERROR_PATCHWELCOME; } + if (s->h & 3) { + avpriv_request_sample(s->avctx, "Frame with height not being a multiple of 4"); + return AVERROR_PATCHWELCOME; + } + if (s->w != s->avctx->width || s->h != s->avctx->height || new_pix_fmt != s->avctx->pix_fmt) { av_frame_unref(s->frame); _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
