Fixes: out of array read Fixes: 16331/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMV3IMAGE_fuzzer-5672735195267072
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> --- libavcodec/vc1_block.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/vc1_block.c b/libavcodec/vc1_block.c index 94184b0873..775e3c516b 100644 --- a/libavcodec/vc1_block.c +++ b/libavcodec/vc1_block.c @@ -526,7 +526,7 @@ static int vc1_decode_ac_coeff(VC1Context *v, int *last, int *skip, int escape = decode210(gb); if (escape != 2) { index = get_vlc2(gb, ff_vc1_ac_coeff_table[codingset].table, AC_VLC_BITS, 3); - if (index < 0) + if (index >= ff_vc1_ac_sizes[codingset] - 1U) return AVERROR_INVALIDDATA; run = vc1_index_decode_table[codingset][index][0]; level = vc1_index_decode_table[codingset][index][1]; -- 2.22.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
