linux-kernel - [PATCH AUTOSEL 4.9 05/16] ixgbe: Fix memleak in ixgbe_configure

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Message-Id: <20210317005948.727250-5-sashal@kernel.org>
Date:   Tue, 16 Mar 2021 20:59:36 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Dinghao Liu <dinghao.liu@....edu.cn>,
        Paul Menzel <pmenzel@...gen.mpg.de>,
        Tony Brelinski <tonyx.brelinski@...el.com>,
        Tony Nguyen <anthony.l.nguyen@...el.com>,
        Sasha Levin <sashal@...nel.org>,
        intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org
Subject: [PATCH AUTOSEL 4.9 05/16] ixgbe: Fix memleak in ixgbe_configure_clsu32

From: Dinghao Liu <dinghao.liu@....edu.cn>

[ Upstream commit 7a766381634da19fc837619b0a34590498d9d29a ]

When ixgbe_fdir_write_perfect_filter_82599() fails,
input allocated by kzalloc() has not been freed,
which leads to memleak.

Signed-off-by: Dinghao Liu <dinghao.liu@....edu.cn>
Reviewed-by: Paul Menzel <pmenzel@...gen.mpg.de>
Tested-by: Tony Brelinski <tonyx.brelinski@...el.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 4c729faeb713..343fa79efe3e 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -8675,8 +8675,10 @@ static int ixgbe_configure_clsu32(struct ixgbe_adapter *adapter,
 	ixgbe_atr_compute_perfect_hash_82599(&input->filter, mask);
 	err = ixgbe_fdir_write_perfect_filter_82599(hw, &input->filter,
 						    input->sw_idx, queue);
-	if (!err)
-		ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);
+	if (err)
+		goto err_out_w_lock;
+
+	ixgbe_update_ethtool_fdir_entry(adapter, input, input->sw_idx);
 	spin_unlock(&adapter->fdir_perfect_lock);
 
 	if ((uhtid != 0x800) && (adapter->jump_tables[uhtid]))
-- 
2.30.1