From 901c4bce459d42dd8e945c4b24f94fa885e1556c Mon Sep 17 00:00:00 2001 From: Cristy Date: Tue, 23 Jan 2018 09:54:43 -0500 Subject: [PATCH] Eliminate invalid write Credit OSS Fuzz --- MagickCore/quantum.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MagickCore/quantum.c b/MagickCore/quantum.c index ab7031685..c036a7777 100644 --- a/MagickCore/quantum.c +++ b/MagickCore/quantum.c @@ -689,7 +689,7 @@ MagickExport MagickBooleanType SetQuantumDepth(const Image *image, if (quantum_info->pixels != (MemoryInfo **) NULL) DestroyQuantumPixels(quantum_info); quantum=(quantum_info->pad+MaxPixelChannels)*(quantum_info->depth+7)/8; - extent=MagickMax(image->columns,image->rows)*quantum; + extent=4*MagickMax(image->columns,image->rows)*quantum; if ((MagickMax(image->columns,image->rows) != 0) && (quantum != (extent/MagickMax(image->columns,image->rows)))) return(MagickFalse); -- 2.40.0