From 6b5519a4f337570e42f2d78cbf20aba91e71bcbf Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Tue, 28 Nov 2000 21:53:48 +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/exec/libfs/ChangeLog          | 5 +++++
 c/src/exec/libfs/src/imfs/memfile.c | 2 ++
 2 files changed, 7 insertions(+)

(limited to 'c/src/exec/libfs')

diff --git a/c/src/exec/libfs/ChangeLog b/c/src/exec/libfs/ChangeLog
index 3f8aae5fee..d786838241 100644
--- a/c/src/exec/libfs/ChangeLog
+++ b/c/src/exec/libfs/ChangeLog
@@ -1,3 +1,8 @@
+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.
+
 2000-11-17	Jennifer Averret <jennifer@OARcorp.com>
 
 	* src/imfs/imfs_eval.c: Always return imaginary node at mount points.
diff --git a/c/src/exec/libfs/src/imfs/memfile.c b/c/src/exec/libfs/src/imfs/memfile.c
index 64dab775f0..890f2aebc1 100644
--- a/c/src/exec/libfs/src/imfs/memfile.c
+++ b/c/src/exec/libfs/src/imfs/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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