ffmpeg | branch: release/5.0 | Andreas Rheinhardt <andreas.rheinha...@outlook.com> | Tue Mar 22 23:50:54 2022 +0100| [a50aa980eb46ab7d291cb4645825405d26c843d0] | committer: Andreas Rheinhardt
avcodec/vp9_superframe_split_bsf: Don't read inexistent data Fixes: Out of array read Fixes: 45137/clusterfuzz-testcase-minimized-ffmpeg_BSF_VP9_SUPERFRAME_SPLIT_fuzzer-4984270639202304 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> (cherry picked from commit d311d820a77550740d3b868440e476adaf12a872) > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a50aa980eb46ab7d291cb4645825405d26c843d0 --- libavcodec/vp9_superframe_split_bsf.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/libavcodec/vp9_superframe_split_bsf.c b/libavcodec/vp9_superframe_split_bsf.c index 7f0cad1ea0..c9cf21b541 100644 --- a/libavcodec/vp9_superframe_split_bsf.c +++ b/libavcodec/vp9_superframe_split_bsf.c @@ -51,6 +51,9 @@ static int vp9_superframe_split_filter(AVBSFContext *ctx, AVPacket *out) return ret; in = s->buffer_pkt; + if (!in->size) + goto passthrough; + marker = in->data[in->size - 1]; if ((marker & 0xe0) == 0xc0) { int length_size = 1 + ((marker >> 3) & 0x3); @@ -121,6 +124,7 @@ static int vp9_superframe_split_filter(AVBSFContext *ctx, AVPacket *out) out->pts = AV_NOPTS_VALUE; } else { +passthrough: av_packet_move_ref(out, s->buffer_pkt); } _______________________________________________ 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".
