--- graphics/gd/Makefile        (working copy)	
+++ graphics/gd/Makefile        (working copy)	
@@ -3,7 +3,7 @@ 
 
 PORTNAME=      libgd
 PORTVERSION=   2.2.3
-PORTREVISION?= 0
+PORTREVISION?= 1
 PORTEPOCH=     1
 CATEGORIES+=   graphics
 MASTER_SITES=  https://github.com/${PORTNAME}/${PORTNAME}/releases/download/gd-${PORTVERSION}/
--- graphics/gd/files/patch-src_gd__webp.c      (working copy)	
+++ graphics/gd/files/patch-src_gd__webp.c      (working copy)	
@@ -0,0 +1,27 @@ 
+LibGD Issue: https://github.com/libgd/libgd/issues/308
+Commit: https://github.com/libgd/libgd/commit/40bec0f38f50e8510f5bb71a82f516d46facde03
+
+Fix integer overflow in gdImageWebpCtx
+
+Integer overflow can be happened in expression gdImageSX(im) * 4 *
+gdImageSY(im). It could lead to heap buffer overflow in the following
+code. This issue has been reported to the PHP Bug Tracking System. The
+proof-of-concept file will be supplied some days later. This issue was
+discovered by Ke Liu of Tencent's Xuanwu LAB.
+--- src/gd_webp.c.orig 2016-07-21 08:06:42 UTC
++++ src/gd_webp.c
+@@ -126,6 +126,14 @@ void gdImageWebpCtx (gdImagePtr im, gdIO
+               quantization = 80;
+       }
+ 
++      if (overflow2(gdImageSX(im), 4)) {
++              return;
++      }
++
++      if (overflow2(gdImageSX(im) * 4, gdImageSY(im))) {
++              return;
++      }
++
+       argb = (uint8_t *)gdMalloc(gdImageSX(im) * 4 * gdImageSY(im));
+       if (!argb) {
+               return;