ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Mon Dec 2 00:24:53 2024 +0100| [61cbcaf93f3b2e10124f4c63ce7cd8dad6505fb2] | committer: Michael Niedermayer
avcodec/rv60dec: Check qp for intra The rv60_qp_to_idx table only supports qp up to 31 on intra Fixes: global-buffer-overflow Fixes: 377543818/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RV60_fuzzer-5160167345291264 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg 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=61cbcaf93f3b2e10124f4c63ce7cd8dad6505fb2 --- libavcodec/rv60dec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/rv60dec.c b/libavcodec/rv60dec.c index 64fa72d8f2..449650223d 100644 --- a/libavcodec/rv60dec.c +++ b/libavcodec/rv60dec.c @@ -1779,6 +1779,8 @@ static int decode_cu_r(RV60Context * s, AVFrame * frame, ThreadContext * thread, ttype = cu.pu_type == PU_FULL ? TRANSFORM_8X8 : TRANSFORM_4X4; is_intra = cu.cu_type == CU_INTRA; + if (is_intra && qp >= 32) + return AVERROR_INVALIDDATA; cu_pos = ((xpos & 63) >> 3) + ((ypos & 63) >> 3) * 8; switch (ttype) { _______________________________________________ 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".
