From: Justin Stitt <justinstitt@google.com>
To: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>,
Paolo Abeni <pabeni@redhat.com>
Cc: linux-usb@vger.kernel.org, netdev@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org,
Justin Stitt <justinstitt@google.com>
Subject: [PATCH] net: usb: replace deprecated strncpy with strscpy
Date: Thu, 12 Oct 2023 22:33:34 +0000 [thread overview]
Message-ID: <20231012-strncpy-drivers-net-usb-sr9800-c-v1-1-5540832c8ec2@google.com> (raw)
strncpy() is deprecated for use on NUL-terminated destination strings
[1] and as such we should prefer more robust and less ambiguous string
interfaces.
Other implementations of .*get_drvinfo use strscpy so this patch brings
sr_get_drvinfo() in line as well:
igb/igb_ethtool.c +851
static void igb_get_drvinfo(struct net_device *netdev,
igbvf/ethtool.c
167:static void igbvf_get_drvinfo(struct net_device *netdev,
i40e/i40e_ethtool.c
1999:static void i40e_get_drvinfo(struct net_device *netdev,
e1000/e1000_ethtool.c
529:static void e1000_get_drvinfo(struct net_device *netdev,
ixgbevf/ethtool.c
211:static void ixgbevf_get_drvinfo(struct net_device *netdev,
...
Link: https://www.kernel.org/doc/html/latest/process/deprecated.html#strncpy-on-nul-terminated-strings [1]
Link: https://manpages.debian.org/testing/linux-manual-4.8/strscpy.9.en.html [2]
Link: https://github.com/KSPP/linux/issues/90
Cc: linux-hardening@vger.kernel.org
Signed-off-by: Justin Stitt <justinstitt@google.com>
---
Note: build-tested only.
Found with: $ rg "strncpy\("
---
drivers/net/usb/sr9800.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/usb/sr9800.c b/drivers/net/usb/sr9800.c
index f5e19f3ef6cd..143bd4ab160d 100644
--- a/drivers/net/usb/sr9800.c
+++ b/drivers/net/usb/sr9800.c
@@ -474,8 +474,8 @@ static void sr_get_drvinfo(struct net_device *net,
{
/* Inherit standard device info */
usbnet_get_drvinfo(net, info);
- strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
- strncpy(info->version, DRIVER_VERSION, sizeof(info->version));
+ strscpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strscpy(info->version, DRIVER_VERSION, sizeof(info->version));
}
static u32 sr_get_link(struct net_device *net)
---
base-commit: cbf3a2cb156a2c911d8f38d8247814b4c07f49a2
change-id: 20231012-strncpy-drivers-net-usb-sr9800-c-38f712c2ff72
Best regards,
--
Justin Stitt <justinstitt@google.com>
next reply other threads:[~2023-10-12 22:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-12 22:33 Justin Stitt [this message]
2023-10-14 16:33 ` [PATCH] net: usb: replace deprecated strncpy with strscpy Andrew Lunn
2023-10-16 23:40 ` patchwork-bot+netdevbpf
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=20231012-strncpy-drivers-net-usb-sr9800-c-v1-1-5540832c8ec2@google.com \
--to=justinstitt@google.com \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=kuba@kernel.org \
--cc=linux-hardening@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.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).