From b768cb11aa4cbf3b419aae2ae2b9da854f92cfd2 Mon Sep 17 00:00:00 2001
From: giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8>
Date: Fri, 1 Sep 2023 18:39:24 +0000
Subject: Fix arithmetic overflow

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@4626 9d0c8265-081b-0410-96cb-a4ca84ce46f8
---
 converter/other/sirtopnm.c | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'converter')

diff --git a/converter/other/sirtopnm.c b/converter/other/sirtopnm.c
index d7bda045..6a36a110 100644
--- a/converter/other/sirtopnm.c
+++ b/converter/other/sirtopnm.c
@@ -90,6 +90,10 @@ convertPpm(FILE *       const ifP,
     unsigned char * sirarray;  /* malloc'ed array */
     unsigned int row;
 
+    if (UINT_MAX/cols/rows < 3)
+        pm_error("Image is too large (%u x %u x %u) for computation",
+                 cols, rows, 3);
+
     MALLOCARRAY(sirarray, picsize);
 
     if (!sirarray)
-- 
cgit 1.4.1