From 39085528404933317ee9faae99e2e3450f84cf5d Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Wed, 7 Jul 2021 14:05:26 +0200 Subject: [PATCH] swscale/slice: Check slice for allocation failure Fixes: null pointer dereference Fixes: alloc_slice.mp4 Found-by: Rafael Dutra Signed-off-by: Michael Niedermayer (cherry picked from commit 997f9cfc1295769be8d3180860ceebbc16f59069) Signed-off-by: Michael Niedermayer --- libswscale/slice.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/libswscale/slice.c b/libswscale/slice.c index db4fa874ff..6599f88373 100644 --- a/libswscale/slice.c +++ b/libswscale/slice.c @@ -286,7 +286,8 @@ int ff_init_filters(SwsContext * c) if (!c->desc) return AVERROR(ENOMEM); c->slice = av_mallocz_array(sizeof(SwsSlice), c->numSlice); - + if (!c->slice) + goto cleanup; res = alloc_slice(&c->slice[0], c->srcFormat, c->srcH, c->chrSrcH, c->chrSrcHSubSample, c->chrSrcVSubSample, 0); if (res < 0) goto cleanup;