From 4ed7cf68c560fa37deb90af937c406bf05d0d225 Mon Sep 17 00:00:00 2001
From: Cristy <urban-warrior@imagemagick.org>
Date: Mon, 5 Feb 2018 20:06:01 -0500
Subject: [PATCH] https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=5416

---
 coders/jnx.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/coders/jnx.c b/coders/jnx.c
index dea645f79..aa003684b 100644
--- a/coders/jnx.c
+++ b/coders/jnx.c
@@ -281,6 +281,8 @@ static Image *ReadJNXImage(const ImageInfo *image_info,ExceptionInfo *exception)
       /*
         Read a tile.
       */
+      if (((MagickSizeType) tile_length) > GetBlobSize(image))
+        ThrowReaderException(CorruptImageError,"InsufficientImageDataInFile");
       blob=(unsigned char *) AcquireQuantumMemory((size_t) tile_length+2,
         sizeof(*blob));
       if (blob == (unsigned char *) NULL)
-- 
2.40.0