From 7d17a794f0348ba40d5cda7d969564cb83981001 Mon Sep 17 00:00:00 2001 From: Laurent Aimar Date: Thu, 29 Sep 2011 03:12:07 +0000 Subject: xan: Prevent NULL dereference with missing palette Signed-off-by: Janne Grunau --- libavcodec/xan.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'libavcodec/xan.c') diff --git a/libavcodec/xan.c b/libavcodec/xan.c index 3965617838..54d6d15da4 100644 --- a/libavcodec/xan.c +++ b/libavcodec/xan.c @@ -553,6 +553,11 @@ static int xan_decode_frame(AVCodecContext *avctx, } buf_size = buf_end - buf; } + if (s->palettes_count <= 0) { + av_log(s->avctx, AV_LOG_ERROR, "No palette found\n"); + return AVERROR_INVALIDDATA; + } + if ((ret = avctx->get_buffer(avctx, &s->current_frame))) { av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed\n"); return ret; -- cgit v1.2.3