From ee9151b616fa7fa5e9b3258ecafd00c9f784baaa Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 24 Jan 2013 01:25:02 +0100 Subject: [PATCH] ff_mss12_decode_init: check dimensions Fixes assertion failure Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer --- libavcodec/mss12.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/libavcodec/mss12.c b/libavcodec/mss12.c index 59294b8b14..b522e4a408 100644 --- a/libavcodec/mss12.c +++ b/libavcodec/mss12.c @@ -586,6 +586,11 @@ av_cold int ff_mss12_decode_init(MSS12Context *c, int version, avctx->coded_width, avctx->coded_height); return AVERROR_INVALIDDATA; } + if (avctx->coded_width < 1 || avctx->coded_height < 1) { + av_log(avctx, AV_LOG_ERROR, "Frame dimensions %dx%d too small", + avctx->coded_width, avctx->coded_height); + return AVERROR_INVALIDDATA; + } av_log(avctx, AV_LOG_DEBUG, "Encoder version %d.%d\n", AV_RB32(avctx->extradata + 4), AV_RB32(avctx->extradata + 8));