ffmpeg | branch: release/4.3 | Michael Niedermayer <mich...@niedermayer.cc> | Thu Sep 12 20:03:55 2024 +0200| [dfdb353fffa673715d9026018dc66a0a92255650] | committer: Michael Niedermayer
avcodec/vc2enc: basic sanity check on slice_max_bytes Fixes: left shift of 896021632 by 3 places cannot be represented in type 'int' Fixes: 70544/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VC2_fuzzer-6685593652756480 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 6df9a0292ca6c29ef3b220fbf9b257924cabf035) Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=dfdb353fffa673715d9026018dc66a0a92255650 --- libavcodec/vc2enc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/vc2enc.c b/libavcodec/vc2enc.c index 2418297561..c2a5c3e122 100644 --- a/libavcodec/vc2enc.c +++ b/libavcodec/vc2enc.c @@ -986,7 +986,7 @@ static av_cold int vc2_encode_frame(AVCodecContext *avctx, AVPacket *avpkt, } s->slice_min_bytes = s->slice_max_bytes - s->slice_max_bytes*(s->tolerance/100.0f); - if (s->slice_min_bytes < 0) + if (s->slice_min_bytes < 0 || s->slice_max_bytes > INT_MAX >> 3) return AVERROR(EINVAL); ret = encode_frame(s, avpkt, frame, aux_data, header_size, s->interlaced); _______________________________________________ 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".
