From 7c25db5bf36191c569513eca0ad7c0dd01c0d25f Mon Sep 17 00:00:00 2001
From: Milan Broz <gmazyland@gmail.com>
Date: Fri, 30 Dec 2022 13:47:20 +0100
Subject: [PATCH] bitlk: fix possible leak of description

If metdata contains more than one description fields,
use just the first one.

Fixes OSS-fuzz bug 54682.
---
 lib/bitlk/bitlk.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/bitlk/bitlk.c b/lib/bitlk/bitlk.c
index c0a1db98..2fea6f97 100644
--- a/lib/bitlk/bitlk.c
+++ b/lib/bitlk/bitlk.c
@@ -701,7 +701,7 @@ int BITLK_read_sb(struct crypt_device *cd, struct bitlk_metadata *params)
 			params->volume_header_offset = le64_to_cpu(entry_header.offset);
 			params->volume_header_size = le64_to_cpu(entry_header.size);
 		/* volume description (utf-16 string) */
-		} else if (entry_type == BITLK_ENTRY_TYPE_DESCRIPTION) {
+		} else if (entry_type == BITLK_ENTRY_TYPE_DESCRIPTION && !params->description) {
 			if (entry_size < BITLK_ENTRY_HEADER_LEN) {
 				r = -EINVAL;
 				goto out;