From ca4c387054a36ac3429f102f2df4dd36292f3a48 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Tue, 28 Nov 2000 21:52:53 +0000
Subject: 2000-11-28	Joel Sherrill <joel@OARcorp.com>

	* src/imfs/memfile.c: Bug report from Sturniolo Jose
	<jsturnio@nec.com.ar> where NULL pointer was dereferenced.
---
 c/src/lib/libc/memfile.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/c/src/lib/libc/memfile.c b/c/src/lib/libc/memfile.c
index 9974a3d2d5..fe782f03c8 100644
--- a/c/src/lib/libc/memfile.c
+++ b/c/src/lib/libc/memfile.c
@@ -499,6 +499,8 @@ int IMFS_memfile_remove(
   if ( info->triply_indirect ) {
     for ( i=0 ; i<IMFS_MEMFILE_BLOCK_SLOTS ; i++ ) {
       p = (block_p *) info->triply_indirect[i];
+      if (!p)  /* ensure we have a valid pointer */
+        break;
       for ( j=0 ; j<IMFS_MEMFILE_BLOCK_SLOTS ; j++ ) {
         if ( p[j] ) {
           memfile_free_blocks_in_table( (block_p **)&p[j], to_free);
-- 
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