ffmpeg | branch: master | Andreas Rheinhardt <andreas.rheinha...@outlook.com> | Sun Jun 22 22:36:00 2025 +0200| [7574c5576138894f892360ee49e8014752977fcd] | committer: Andreas Rheinhardt
avcodec/indeo3: Fix UB pointer arithmetic Fixes the following error when running with Clang-UBSan: src/libavcodec/indeo3.c:556:26: runtime error: applying non-zero offset 2560 to null pointer This fixes the indeo3-2 FATE test. Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=7574c5576138894f892360ee49e8014752977fcd --- libavcodec/indeo3.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/libavcodec/indeo3.c b/libavcodec/indeo3.c index fbabd4b6ad..59d7f12bf4 100644 --- a/libavcodec/indeo3.c +++ b/libavcodec/indeo3.c @@ -691,9 +691,11 @@ static int decode_cell(Indeo3DecodeContext *ctx, AVCodecContext *avctx, } zoom_fac = mode == 10; - error = decode_cell_data(ctx, cell, block, ref_block, plane->pitch, - zoom_fac, 1, mode, delta, swap_quads, - &data_ptr, last_ptr); + av_assert2(!ref_block); + error = decode_cell_data(ctx, cell, block, + block /* dummy to avoid UB pointer arithmetic */, + plane->pitch, zoom_fac, 1, mode, delta, + swap_quads, &data_ptr, last_ptr); } break; default: _______________________________________________ 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".
