From e8ffd7100cc96db5b1324297f078b3e6b12f28eb Mon Sep 17 00:00:00 2001
From: Dirk Lemstra <dirk@git.imagemagick.org>
Date: Sun, 1 Apr 2018 18:02:54 +0200
Subject: [PATCH] Added extra check
 (https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=7266)

---
 coders/psd.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/coders/psd.c b/coders/psd.c
index ce5c90859..f0c39d80b 100644
--- a/coders/psd.c
+++ b/coders/psd.c
@@ -1235,6 +1235,9 @@ static MagickBooleanType ReadPSDChannelZip(Image *image,const size_t channels,
     (void) LogMagickEvent(CoderEvent,GetMagickModule(),
        "      layer data is ZIP compressed");
 
+  if ((MagickSizeType) compact_size > GetBlobSize(image))
+    ThrowBinaryException(CorruptImageError,"UnexpectedEndOfFile",
+      image->filename);
   compact_pixels=(unsigned char *) AcquireQuantumMemory(compact_size,
     sizeof(*compact_pixels));
   if (compact_pixels == (unsigned char *) NULL)
-- 
2.50.1