From e0dd533ad6efa95cc6f15b04949d6bbba3207b35 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Thu, 4 Apr 2024 00:31:40 +0200 Subject: [PATCH] swscale/utils: Fix xInc overflow Fixes: signed integer overflow: 2 * 1073741824 cannot be represented in type 'int' Fixes: 67802/clusterfuzz-testcase-minimized-ffmpeg_SWS_fuzzer-6249515855183872 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer (cherry picked from commit 1a9eda65d027e0167f7363e0514f71311ac5d8d1) Signed-off-by: Michael Niedermayer --- libswscale/utils.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libswscale/utils.c b/libswscale/utils.c index ab8a68e241..54bbd519af 100644 --- a/libswscale/utils.c +++ b/libswscale/utils.c @@ -564,7 +564,7 @@ static av_cold int initFilter(int16_t **outFilter, int32_t **filterPos, filter[i * filterSize + j] = coeff; xx++; } - xDstInSrc += 2 * xInc; + xDstInSrc += 2LL * xInc; } }