From 7ebb3022297aa00afda6800105684b8303f2608e Mon Sep 17 00:00:00 2001 From: Federico Tomassetti Date: Sat, 21 Mar 2015 10:45:01 +0000 Subject: swscale: Check memory allocation Bug-Id: CID 1267890 CC: libav-stable@libav.org Signed-off-by: Luca Barbato --- libswscale/utils.c | 22 ++++++++++++++-------- 1 file changed, 14 insertions(+), 8 deletions(-) (limited to 'libswscale') diff --git a/libswscale/utils.c b/libswscale/utils.c index 23d7c93232..f5b251136a 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -1382,17 +1382,13 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, filter->chrV = sws_getIdentityVec(); } - if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV) { - sws_freeVec(filter->lumH); - sws_freeVec(filter->lumV); - sws_freeVec(filter->chrH); - sws_freeVec(filter->chrV); - av_freep(&filter); - return NULL; - } + if (!filter->lumH || !filter->lumV || !filter->chrH || !filter->chrV) + goto fail; if (chromaSharpen != 0.0) { SwsVector *id = sws_getIdentityVec(); + if (!id) + goto fail; sws_scaleVec(filter->chrH, -chromaSharpen); sws_scaleVec(filter->chrV, -chromaSharpen); sws_addVec(filter->chrH, id); @@ -1402,6 +1398,8 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, if (lumaSharpen != 0.0) { SwsVector *id = sws_getIdentityVec(); + if (!id) + goto fail; sws_scaleVec(filter->lumH, -lumaSharpen); sws_scaleVec(filter->lumV, -lumaSharpen); sws_addVec(filter->lumH, id); @@ -1426,6 +1424,14 @@ SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur, sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG); return filter; + +fail: + sws_freeVec(filter->lumH); + sws_freeVec(filter->lumV); + sws_freeVec(filter->chrH); + sws_freeVec(filter->chrV); + av_freep(&filter); + return NULL; } SwsVector *sws_allocVec(int length) -- cgit v1.2.3