From 5c3262e82b7b028e0c5d38fee90ac1b31e604a41 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sun, 3 Jul 2022 00:43:21 +0200 Subject: avcodec/qdrw: adjust max colors to array size Fixes: out of array access Fixes: 48429/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_QDRAW_fuzzer-4608329791438848 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Reviewed-by: Paul B Mahol Signed-off-by: Michael Niedermayer (cherry picked from commit cd847f86d31f87f0f7733ca6ab7a2c022a1398bd) Signed-off-by: Michael Niedermayer --- libavcodec/qdrw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/qdrw.c b/libavcodec/qdrw.c index 0452086be3..b17fb59f3e 100644 --- a/libavcodec/qdrw.c +++ b/libavcodec/qdrw.c @@ -216,7 +216,7 @@ static int decode_frame(AVCodecContext *avctx, bytestream2_skip(&gbc, 18); colors = bytestream2_get_be16(&gbc); - if (colors < 0 || colors > 256) { + if (colors < 0 || colors > 255) { av_log(avctx, AV_LOG_ERROR, "Error color count - %i(0x%X)\n", colors, colors); return AVERROR_INVALIDDATA; -- cgit v1.2.3