linux-kernel - [PATCH 5.15 103/244] fs/ntfs3: Fix using uninitialized value n when calling indx

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Date:   Tue, 23 Aug 2022 10:24:22 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Yan Lei <chinayanlei2002@....com>,
        Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Subject: [PATCH 5.15 103/244] fs/ntfs3: Fix using uninitialized value n when calling indx_read

From: Yan Lei <chinayanlei2002@....com>

commit ae5a4e46916fc307288227b64c1d062352eb93b7 upstream.

This value is checked in indx_read, so it must be initialized
Fixes: 82cae269cfa9 ("fs/ntfs3: Add initialization of super block")

Signed-off-by: Yan Lei <chinayanlei2002@....com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 fs/ntfs3/index.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ntfs3/index.c
+++ b/fs/ntfs3/index.c
@@ -1994,7 +1994,7 @@ static int indx_free_children(struct ntf
 			      const struct NTFS_DE *e, bool trim)
 {
 	int err;
-	struct indx_node *n;
+	struct indx_node *n = NULL;
 	struct INDEX_HDR *hdr;
 	CLST vbn = de_get_vbn(e);
 	size_t i;