linux-kernel - [PATCH 4.12 20/65] nfs/flexfiles: fix leak of nfs4_ff_ds

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Message-Id: <20170815011943.193951829@linuxfoundation.org>
Date:   Mon, 14 Aug 2017 18:19:11 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Weston Andros Adamson <dros@...marydata.com>,
        Anna Schumaker <Anna.Schumaker@...app.com>
Subject: [PATCH 4.12 20/65] nfs/flexfiles: fix leak of nfs4_ff_ds_version arrays

4.12-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Weston Andros Adamson <dros@...key.org>

commit 1feb26162bee7b2f110facfec71b5c7bdbc7d14d upstream.

The client was freeing the nfs4_ff_layout_ds, but not the contained
nfs4_ff_ds_version array.

Signed-off-by: Weston Andros Adamson <dros@...marydata.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@...app.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/nfs/flexfilelayout/flexfilelayoutdev.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/nfs/flexfilelayout/flexfilelayoutdev.c
+++ b/fs/nfs/flexfilelayout/flexfilelayoutdev.c
@@ -32,6 +32,7 @@ void nfs4_ff_layout_free_deviceid(struct
 {
 	nfs4_print_deviceid(&mirror_ds->id_node.deviceid);
 	nfs4_pnfs_ds_put(mirror_ds->ds);
+	kfree(mirror_ds->ds_versions);
 	kfree_rcu(mirror_ds, id_node.rcu);
 }