From: Justin Stitt <justinstitt@google.com>
To: Woojung Huh <woojung.huh@microchip.com>,
UNGLinuxDriver@microchip.com,
"David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org, linux-usb@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org,
Justin Stitt <justinstitt@google.com>
Subject: [PATCH] lan78xx: replace deprecated strncpy with strscpy
Date: Thu, 12 Oct 2023 22:30:54 +0000 [thread overview]
Message-ID: <20231012-strncpy-drivers-net-usb-lan78xx-c-v1-1-99d513061dfc@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
lan78xx_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://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/lan78xx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c
index 59cde06aa7f6..5add4145d9fc 100644
--- a/drivers/net/usb/lan78xx.c
+++ b/drivers/net/usb/lan78xx.c
@@ -1758,7 +1758,7 @@ static void lan78xx_get_drvinfo(struct net_device *net,
{
struct lan78xx_net *dev = netdev_priv(net);
- strncpy(info->driver, DRIVER_NAME, sizeof(info->driver));
+ strscpy(info->driver, DRIVER_NAME, sizeof(info->driver));
usb_make_path(dev->udev, info->bus_info, sizeof(info->bus_info));
}
---
base-commit: cbf3a2cb156a2c911d8f38d8247814b4c07f49a2
change-id: 20231012-strncpy-drivers-net-usb-lan78xx-c-f19433ee0f0a
Best regards,
--
Justin Stitt <justinstitt@google.com>
next reply other threads:[~2023-10-12 22:31 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-10-12 22:30 Justin Stitt [this message]
2023-10-14 16:33 ` [PATCH] lan78xx: replace deprecated strncpy with strscpy Andrew Lunn
2023-10-16 23:40 ` patchwork-bot+netdevbpf
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