From: Theodore Ts'o <tytso@google.com>
Date: Sun, 5 Jan 2014 06:12:49 +0000 (-0500)
Subject: libblkid: fix memory overrun in probe_lvm2
X-Git-Tag: v1.42.10~135
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=5d5576d8bbf196835ec89f53dc919738f49e23ab;p=thirdparty%2Fe2fsprogs.git

libblkid: fix memory overrun in probe_lvm2

Addresses-Coverity-ID: #1049167

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

diff --git a/lib/blkid/probe.c b/lib/blkid/probe.c
index 6f74bd48b..dd3604e9d 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++ = '-';