From 731c59b6e76abe8c872993ecb845f8c23599188a Mon Sep 17 00:00:00 2001
From: giraffedata <giraffedata@9d0c8265-081b-0410-96cb-a4ca84ce46f8>
Date: Wed, 20 Sep 2023 02:12:59 +0000
Subject: Fix arithmetic overlow

git-svn-id: http://svn.code.sf.net/p/netpbm/code/trunk@4670 9d0c8265-081b-0410-96cb-a4ca84ce46f8
---
 converter/pbm/ybmtopbm.c | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'converter/pbm')

diff --git a/converter/pbm/ybmtopbm.c b/converter/pbm/ybmtopbm.c
index 36f2dee7..78eb79f2 100644
--- a/converter/pbm/ybmtopbm.c
+++ b/converter/pbm/ybmtopbm.c
@@ -10,6 +10,8 @@
 ** implied warranty.
 */
 
+#include <limits.h>
+
 #include "pm.h"
 #include "pbm.h"
 #include "bitreverse.h"
@@ -80,6 +82,9 @@ main(int argc, const char * argv[]) {
     getinit(ifP, &cols, &rows, &depth);
     if (depth != 1)
         pm_error("YBM file has depth of %u, must be 1", (unsigned int) depth);
+    if (cols > INT_MAX - 15)
+        pm_error("YBM file has uncomputably large width %d", cols);
+
 
     pbm_writepbminit(stdout, cols, rows, 0);
 
-- 
cgit 1.4.1