From: Wenwu Ma <wenwux.ma@intel.com>
To: qiming.yang@intel.com, qi.z.zhang@intel.com
Cc: dev@dpdk.org
Subject: [dpdk-dev] [PATCH] net/ice: fix illegal pointer access in dev init
Date: Thu, 1 Apr 2021 13:24:53 +0000 [thread overview]
Message-ID: <20210401132453.17786-1-wenwux.ma@intel.com> (raw)
mac_addrs in dev data should be allocated more memory space,
Otherwise, traversing mac_addrs in function eth_dev_mac_restore()
will result heap-buffer-overflow.
Signed-off-by: Wenwu Ma <wenwux.ma@intel.com>
---
drivers/net/ice/ice_ethdev.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index 9c9b84a93..115fa712e 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -808,8 +808,8 @@ ice_init_mac_address(struct rte_eth_dev *dev)
(struct rte_ether_addr *)hw->port_info[0].mac.lan_addr,
(struct rte_ether_addr *)hw->port_info[0].mac.perm_addr);
- dev->data->mac_addrs =
- rte_zmalloc(NULL, sizeof(struct rte_ether_addr), 0);
+ dev->data->mac_addrs = rte_zmalloc(NULL,
+ sizeof(struct rte_ether_addr) * ICE_NUM_MACADDR_MAX, 0);
if (!dev->data->mac_addrs) {
PMD_INIT_LOG(ERR,
"Failed to allocate memory to store mac address");
--
2.25.1
next reply other threads:[~2021-04-01 1:31 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-01 13:24 Wenwu Ma [this message]
2021-04-01 2:37 ` Stephen Hemminger
2021-04-01 15:20 Wenwu Ma
2021-04-01 12:00 ` Zhang, Qi Z
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=20210401132453.17786-1-wenwux.ma@intel.com \
--to=wenwux.ma@intel.com \
--cc=dev@dpdk.org \
--cc=qi.z.zhang@intel.com \
--cc=qiming.yang@intel.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).