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From: Khaled ROMDHANI <khaledromdhani216@gmail.com>
To: sfrench@samba.org
Cc: Khaled ROMDHANI <khaledromdhani216@gmail.com>,
	linux-cifs@vger.kernel.org, samba-technical@lists.samba.org,
	linux-kernel@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH-next] fs/cifs: Fix resource leak
Date: Tue,  4 May 2021 13:43:43 +0100	[thread overview]
Message-ID: <20210504124343.22611-1-khaledromdhani216@gmail.com> (raw)

The -EIO error return path is leaking memory allocated
to page. Fix this by invoking the free_dentry_path before
the return.

Addresses-Coverity: ("Resource leak")
Signed-off-by: Khaled ROMDHANI <khaledromdhani216@gmail.com>
---
 fs/cifs/link.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/link.c b/fs/cifs/link.c
index 1cbe7ec73728..1485c6095ba1 100644
--- a/fs/cifs/link.c
+++ b/fs/cifs/link.c
@@ -686,8 +686,10 @@ cifs_symlink(struct user_namespace *mnt_userns, struct inode *inode,
 	void *page = alloc_dentry_path();
 	struct inode *newinode = NULL;
 
-	if (unlikely(cifs_forced_shutdown(cifs_sb)))
+	if (unlikely(cifs_forced_shutdown(cifs_sb))) {
+		free_dentry_path(page);
 		return -EIO;
+	}
 
 	xid = get_xid();
 
-- 
2.17.1


             reply	other threads:[~2021-05-04 12:43 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-04 12:43 Khaled ROMDHANI [this message]
2021-05-04 13:44 ` [PATCH-next] fs/cifs: Fix resource leak Dan Carpenter
2021-05-04 14:14   ` Khaled Romdhani
2021-05-04 13:22 Khaled ROMDHANI

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