linux-kernel - [PATCH] ubifs: Fix memory leak in error path in ubifs

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Message-Id: <20170210164601.29218-1-richard@nod.at>
Date:   Fri, 10 Feb 2017 17:46:01 +0100
From:   Richard Weinberger <richard@....at>
To:     linux-mtd@...ts.infradead.org
Cc:     linux-kernel@...r.kernel.org, dedekind1@...il.com,
        david.oberhollenzer@...ma-star.at,
        Richard Weinberger <richard@....at>
Subject: [PATCH] ubifs: Fix memory leak in error path in ubifs_mknod

When fscrypt_setup_filename() fails we have to free dev.

Signed-off-by: Richard Weinberger <richard@....at>
---
 fs/ubifs/dir.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/ubifs/dir.c b/fs/ubifs/dir.c
index 528369f3e472..e164782f8bc8 100644
--- a/fs/ubifs/dir.c
+++ b/fs/ubifs/dir.c
@@ -1068,8 +1068,10 @@ static int ubifs_mknod(struct inode *dir, struct dentry *dentry,
 	}
 
 	err = fscrypt_setup_filename(dir, &dentry->d_name, 0, &nm);
-	if (err)
+	if (err) {
+		kfree(dev);
 		goto out_budg;
+	}
 
 	sz_change = CALC_DENT_SIZE(fname_len(&nm));
 
-- 
2.10.2