ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Fri Jun 20 01:37:23 2025 +0200| [9d1e4feecebd4fbb6626b0ced5d490e183ef1eaa] | committer: Michael Niedermayer
avcodec/vvc/ctu: Check palette_escape_val Fixes: integer overflow Fixes: 418314174/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VVC_fuzzer-4871731867353088 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=9d1e4feecebd4fbb6626b0ced5d490e183ef1eaa --- libavcodec/vvc/ctu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavcodec/vvc/ctu.c b/libavcodec/vvc/ctu.c index ba4c89b1d1..7fa2b49638 100644 --- a/libavcodec/vvc/ctu.c +++ b/libavcodec/vvc/ctu.c @@ -2053,6 +2053,8 @@ static int palette_subblock_data(VVCLocalContext *lc, const int v = PALETTE_INDEX(xc, yc); if (v == esc) { const int coeff = ff_vvc_palette_escape_val(lc); + if (coeff >= (1U << sps->bit_depth)) + return AVERROR_INVALIDDATA; const int pixel = av_clip_intp2(RSHIFT(coeff * scale, 6), sps->bit_depth); PALETTE_SET_PIXEL(xc, yc, pixel); } else { _______________________________________________ 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".
