ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Sat Jun 28 02:21:57 2025 +0200| [ecbe3e73662b765b1ab0147da105186799ac83c7] | committer: Michael Niedermayer
avcodec/rv60dec: Check ofs for overflows Fixes: signed integer overflow: 30 + 2147483647 cannot be represented in type 'int' Fixes: 418335931/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-6568264620900352 Reviewed-by: Peter Ross <pr...@xvid.org> Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=ecbe3e73662b765b1ab0147da105186799ac83c7 --- libavcodec/rv60dec.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavcodec/rv60dec.c b/libavcodec/rv60dec.c index 6075598861..4a3d9067db 100644 --- a/libavcodec/rv60dec.c +++ b/libavcodec/rv60dec.c @@ -2347,10 +2347,12 @@ static int rv60_decode_frame(AVCodecContext *avctx, AVFrame * frame, ofs = get_bits_count(&gb) / 8; for (int i = 0; i < s->cu_height; i++) { - if (header_size + ofs >= avpkt->size) + if (ofs >= avpkt->size - header_size) return AVERROR_INVALIDDATA; s->slice[i].data = avpkt->data + header_size + ofs; s->slice[i].data_size = FFMIN(s->slice[i].size, avpkt->size - header_size - ofs); + if (s->slice[i].size > INT32_MAX - ofs) + return AVERROR_INVALIDDATA; ofs += s->slice[i].size; } _______________________________________________ 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".
