[dpdk-stable] [PATCH v2] net/ixgbe: fix mac resourece leak

[Qiming Chen]

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Qiming Chen
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chenqiming_huawei at 163.com
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On 9/1/2021 14:25，Wang, Haiyue<haiyue.wang at intel.com> wrote：
-----Original Message-----
From: Qiming Chen <chenqiming_huawei at 163.com>
Sent: Tuesday, August 31, 2021 22:22
To: dev at dpdk.org
Cc: Wang, Haiyue <haiyue.wang at intel.com>; Qiming Chen <chenqiming_huawei at 163.com>; stable at dpdk.org
Subject: [PATCH v2] net/ixgbe: fix mac resourece leak

In the eth_ixgbevf_dev_init and eth_ixgbe_dev_init functions, memory is
allocated for the MAC address, and the address is stored in the
eth_dev->data->mac_addrs member variable. If the subsequent function is
abnormal, you need to use the rte_free function to release the MAC
address memory.

Fixes: abf7275bbaa2 ("ixgbe: move to drivers/net/")

Use this tag:
Fixes: af75078fece3 ("first public release")

Also, your ixgbe series fixes can be into patch set, no need to
send them one by one.

Thanks for your effort. ;-)

Cc: stable at dpdk.org

Signed-off-by: Qiming Chen <chenqiming_huawei at 163.com>
---
v2:
Clear coding style warning.
---
drivers/net/ixgbe/ixgbe_ethdev.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 7d3a821300..6a91f104e1 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c
@@ -1218,6 +1218,8 @@ eth_ixgbe_dev_init(struct rte_eth_dev *eth_dev, void *init_params __rte_unused)
PMD_INIT_LOG(ERR,
"Failed to allocate %d bytes needed to store MAC addresses",
RTE_ETHER_ADDR_LEN * IXGBE_VMDQ_NUM_UC_MAC);
+    rte_free(eth_dev->data->mac_addrs);
+    eth_dev->data->mac_addrs = NULL;
return -ENOMEM;
}

@@ -1672,6 +1674,8 @@ eth_ixgbevf_dev_init(struct rte_eth_dev *eth_dev)

default:
PMD_INIT_LOG(ERR, "VF Initialization Failure: %d", diag);
+    rte_free(eth_dev->data->mac_addrs);
+    eth_dev->data->mac_addrs = NULL;
return -EIO;
}

--
2.30.1.windows.1