From 1047c286fa20c79dde8ddd7577a3b87cc1effdb7 Mon Sep 17 00:00:00 2001 From: Andreas Cadhalpun Date: Mon, 1 Jun 2015 00:51:30 +0200 Subject: [PATCH] libopenjpegenc: add NULL check for img before accessing it If opj_image_create fails to allocate an image it returns NULL, which causes a segmentation fault at 'img->x0 = 0'. Reviewed-by: Michael Niedermayer Signed-off-by: Andreas Cadhalpun (cherry picked from commit 1577526b47439f33a999339efdec5d624b70e1da) Signed-off-by: Michael Niedermayer --- libavcodec/libopenjpegenc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/libavcodec/libopenjpegenc.c b/libavcodec/libopenjpegenc.c index 66633f4ad2..458cf7c2c1 100644 --- a/libavcodec/libopenjpegenc.c +++ b/libavcodec/libopenjpegenc.c @@ -164,6 +164,9 @@ static opj_image_t *mj2_create_image(AVCodecContext *avctx, opj_cparameters_t *p img = opj_image_create(numcomps, cmptparm, color_space); + if (!img) + return NULL; + // x0, y0 is the top left corner of the image // x1, y1 is the width, height of the reference grid img->x0 = 0;