linux-ext4 - [PATCH 4/4] libblkid: fix memory overrun in probe

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Message-Id: <1388903203-5067-4-git-send-email-tytso@mit.edu>
Date:	Sun,  5 Jan 2014 01:26:43 -0500
From:	Theodore Ts'o <tytso@....edu>
To:	Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc:	Theodore Ts'o <tytso@...gle.com>, "Theodore Ts'o" <tytso@....edu>
Subject: [PATCH 4/4] libblkid: fix memory overrun in probe_lvm2

From: Theodore Ts'o <tytso@...gle.com>

Addresses-Coverity-ID: #1049167

Signed-off-by: "Theodore Ts'o" <tytso@....edu>
---
 lib/blkid/probe.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/blkid/probe.c b/lib/blkid/probe.c
index 6f74bd4..dd3604e 100644
--- a/lib/blkid/probe.c
+++ b/lib/blkid/probe.c
@@ -1360,7 +1360,7 @@ static int probe_lvm2(struct blkid_probe *probe,
 		return 1;
 	}
 
-	for (i=0, b=1, p=uuid, q= (char *) label->pv_uuid; i <= 32;
+	for (i=0, b=1, p=uuid, q= (char *) label->pv_uuid; i < LVM2_ID_LEN;
 	     i++, b <<= 1) {
 		if (b & 0x4444440)
 			*p++ = '-';
-- 
1.8.5.rc3.362.gdf10213

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