From: Yunjian Wang <wangyunjian@huawei.com>
To: <dev@dpdk.org>
Cc: <matan@nvidia.com>, <viacheslavo@nvidia.com>,
<michaelba@nvidia.com>, <dingxiaoxiong@huawei.com>,
<xudingke@huawei.com>, Yunjian Wang <wangyunjian@huawei.com>,
<stable@dpdk.org>
Subject: [dpdk-dev] [PATCH 1/1] net/mlx5: fix stack buffer overflow of hrxq's rss_key
Date: Fri, 24 Dec 2021 11:06:19 +0800 [thread overview]
Message-ID: <5cd9086411342c7475e3227249d3aa3a3144897d.1640314881.git.wangyunjian@huawei.com> (raw)
The mlx5_drop_action_create function use mlx5_malloc for allocating
'hrxq', but don't allocate for 'rss_key'. This is wrong and it can
cause buffer overflow.
Detected with address sanitizer:
0 (/usr/lib64/libasan.so.4+0x7b8e2)
1 in mlx5_devx_tir_attr_set ../drivers/net/mlx5/mlx5_devx.c:765
2 in mlx5_devx_hrxq_new ../drivers/net/mlx5/mlx5_devx.c:800
3 in mlx5_devx_drop_action_create ../drivers/net/mlx5/mlx5_devx.c:1051
4 in mlx5_drop_action_create ../drivers/net/mlx5/mlx5_rxq.c:2846
5 in mlx5_dev_spawn ../drivers/net/mlx5/linux/mlx5_os.c:1743
6 in mlx5_os_pci_probe_pf ../drivers/net/mlx5/linux/mlx5_os.c:2501
7 in mlx5_os_pci_probe ../drivers/net/mlx5/linux/mlx5_os.c:2647
8 in mlx5_os_net_probe ../drivers/net/mlx5/linux/mlx5_os.c:2722
9 in drivers_probe ../drivers/common/mlx5/mlx5_common.c:657
10 in mlx5_common_dev_probe ../drivers/common/mlx5/mlx5_common.c:711
11 in mlx5_common_pci_probe ../drivers/common/mlx5/mlx5_common_pci.c:150
12 in rte_pci_probe_one_driver ../drivers/bus/pci/pci_common.c:269
13 in pci_probe_all_drivers ../drivers/bus/pci/pci_common.c:353
14 in pci_probe ../drivers/bus/pci/pci_common.c:380
15 in rte_bus_probe ../lib/eal/common/eal_common_bus.c:72
16 in rte_eal_init ../lib/eal/linux/eal.c:1286
17 in main ../app/test-pmd/testpmd.c:4112
Fixes: 0c762e81da9b ("net/mlx5: share Rx queue drop action code")
Cc: stable@dpdk.org
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
---
drivers/net/mlx5/mlx5_rxq.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/mlx5/mlx5_rxq.c b/drivers/net/mlx5/mlx5_rxq.c
index f77d42dedf..a1e0b887a8 100644
--- a/drivers/net/mlx5/mlx5_rxq.c
+++ b/drivers/net/mlx5/mlx5_rxq.c
@@ -2828,7 +2828,7 @@ mlx5_drop_action_create(struct rte_eth_dev *dev)
if (priv->drop_queue.hrxq)
return priv->drop_queue.hrxq;
- hrxq = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*hrxq), 0, SOCKET_ID_ANY);
+ hrxq = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*hrxq) + MLX5_RSS_HASH_KEY_LEN, 0, SOCKET_ID_ANY);
if (!hrxq) {
DRV_LOG(WARNING,
"Port %u cannot allocate memory for drop queue.",
--
2.27.0
next reply other threads:[~2021-12-24 3:07 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-24 3:06 Yunjian Wang [this message]
2022-01-28 9:41 ` wangyunjian
2022-02-08 10:55 ` wangyunjian
2022-03-02 10:54 ` wangyunjian
2022-06-20 5:16 ` Slava Ovsiienko
2022-06-20 5:59 ` wangyunjian
2022-06-20 8:02 ` Raslan Darawsheh
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=5cd9086411342c7475e3227249d3aa3a3144897d.1640314881.git.wangyunjian@huawei.com \
--to=wangyunjian@huawei.com \
--cc=dev@dpdk.org \
--cc=dingxiaoxiong@huawei.com \
--cc=matan@nvidia.com \
--cc=michaelba@nvidia.com \
--cc=stable@dpdk.org \
--cc=viacheslavo@nvidia.com \
--cc=xudingke@huawei.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).