From: Bartosz Golaszewski <brgl@bgdev.pl> To: Sekhar Nori <nsekhar@ti.com>, Kevin Hilman <khilman@kernel.org>, Russell King <linux@armlinux.org.uk>, Grygorii Strashko <grygorii.strashko@ti.com>, "David S . Miller" <davem@davemloft.net>, Srinivas Kandagatla <srinivas.kandagatla@linaro.org>, Lukas Wunner <lukas@wunner.de>, Rob Herring <robh@kernel.org>, Florian Fainelli <f.fainelli@gmail.com>, Dan Carpenter <dan.carpenter@oracle.com>, Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org>, David Lechner <david@lechnology.com>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Andrew Lunn <andrew@lunn.ch> Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, netdev@vger.kernel.org, Bartosz Golaszewski <bgolaszewski@baylibre.com> Subject: [PATCH 3/5] net: fortify eth_platform_get_mac_address() Date: Wed, 18 Jul 2018 18:10:33 +0200 [thread overview] Message-ID: <20180718161035.7005-4-brgl@bgdev.pl> (raw) In-Reply-To: <20180718161035.7005-1-brgl@bgdev.pl> From: Bartosz Golaszewski <bgolaszewski@baylibre.com> We'll soon have more sources from which to read the MAC address in this routine. Make sure the address is correct before returning it. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> --- net/ethernet/eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 2a2173324d9e..6b64586fd2af 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -544,7 +544,7 @@ int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr) from = "arch callback"; } - if (!addr) + if (!addr || !is_valid_ether_addr(addr)) return -ENODEV; dev_info(dev, "read MAC address from %s\n", from); -- 2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: brgl@bgdev.pl (Bartosz Golaszewski) To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 3/5] net: fortify eth_platform_get_mac_address() Date: Wed, 18 Jul 2018 18:10:33 +0200 [thread overview] Message-ID: <20180718161035.7005-4-brgl@bgdev.pl> (raw) In-Reply-To: <20180718161035.7005-1-brgl@bgdev.pl> From: Bartosz Golaszewski <bgolaszewski@baylibre.com> We'll soon have more sources from which to read the MAC address in this routine. Make sure the address is correct before returning it. Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com> --- net/ethernet/eth.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/ethernet/eth.c b/net/ethernet/eth.c index 2a2173324d9e..6b64586fd2af 100644 --- a/net/ethernet/eth.c +++ b/net/ethernet/eth.c @@ -544,7 +544,7 @@ int eth_platform_get_mac_address(struct device *dev, u8 *mac_addr) from = "arch callback"; } - if (!addr) + if (!addr || !is_valid_ether_addr(addr)) return -ENODEV; dev_info(dev, "read MAC address from %s\n", from); -- 2.17.1
next prev parent reply other threads:[~2018-07-18 16:10 UTC|newest] Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top 2018-07-18 16:10 [PATCH 0/5] net: extend eth_platform_get_mac_address() Bartosz Golaszewski 2018-07-18 16:10 ` Bartosz Golaszewski 2018-07-18 16:10 ` [PATCH 1/5] net: visually shrink eth_platform_get_mac_address() Bartosz Golaszewski 2018-07-18 16:10 ` Bartosz Golaszewski 2018-07-18 16:28 ` Andrew Lunn 2018-07-18 16:28 ` Andrew Lunn 2018-07-18 16:28 ` Andrew Lunn 2018-07-18 16:31 ` Bartosz Golaszewski 2018-07-18 16:31 ` Bartosz Golaszewski 2018-07-18 23:10 ` David Miller 2018-07-18 23:10 ` David Miller 2018-07-18 16:10 ` [PATCH 2/5] net: add an info message to eth_platform_get_mac_address() Bartosz Golaszewski 2018-07-18 16:10 ` Bartosz Golaszewski 2018-07-18 16:31 ` Andrew Lunn 2018-07-18 16:31 ` Andrew Lunn 2018-07-18 16:33 ` Bartosz Golaszewski 2018-07-18 16:33 ` Bartosz Golaszewski 2018-07-18 23:13 ` David Miller 2018-07-18 23:13 ` David Miller 2018-07-18 16:10 ` Bartosz Golaszewski [this message] 2018-07-18 16:10 ` [PATCH 3/5] net: fortify eth_platform_get_mac_address() Bartosz Golaszewski 2018-07-18 16:35 ` Andrew Lunn 2018-07-18 16:35 ` Andrew Lunn 2018-07-18 16:10 ` [PATCH 4/5] net: add support for nvmem to eth_platform_get_mac_address() Bartosz Golaszewski 2018-07-18 16:10 ` Bartosz Golaszewski 2018-07-18 16:42 ` Andrew Lunn 2018-07-18 16:42 ` Andrew Lunn 2018-07-18 16:42 ` Andrew Lunn 2018-07-19 15:22 ` Andrew Lunn 2018-07-19 15:22 ` Andrew Lunn 2018-07-19 15:22 ` Andrew Lunn 2018-07-19 15:25 ` Bartosz Golaszewski 2018-07-19 15:25 ` Bartosz Golaszewski 2018-07-19 17:47 ` Russell King - ARM Linux 2018-07-19 17:47 ` Russell King - ARM Linux 2018-07-19 21:24 ` Bartosz Golaszewski 2018-07-19 21:24 ` Bartosz Golaszewski 2018-07-19 21:48 ` Andrew Lunn 2018-07-19 21:48 ` Andrew Lunn 2018-07-18 16:10 ` [PATCH 5/5] net: add MTD support " Bartosz Golaszewski 2018-07-18 16:10 ` Bartosz Golaszewski 2018-07-18 16:47 ` Andrew Lunn 2018-07-18 16:47 ` Andrew Lunn 2018-07-18 16:54 ` Bartosz Golaszewski 2018-07-18 16:54 ` Bartosz Golaszewski 2018-07-18 17:03 ` Andrew Lunn 2018-07-18 17:03 ` Andrew Lunn 2018-07-18 17:03 ` Andrew Lunn 2018-07-19 8:14 ` Bartosz Golaszewski 2018-07-19 8:14 ` Bartosz Golaszewski 2018-07-19 15:01 ` Andrew Lunn 2018-07-19 15:01 ` Andrew Lunn 2018-07-19 15:07 ` Bartosz Golaszewski 2018-07-19 15:07 ` Bartosz Golaszewski 2018-07-19 15:27 ` Andrew Lunn 2018-07-19 15:27 ` Andrew Lunn 2018-07-19 15:27 ` Andrew Lunn 2018-07-19 15:35 ` Bartosz Golaszewski 2018-07-19 15:35 ` Bartosz Golaszewski 2018-07-20 5:17 ` Sekhar Nori 2018-07-20 5:17 ` Sekhar Nori 2018-07-20 5:17 ` Sekhar Nori 2018-07-20 14:15 ` Andrew Lunn 2018-07-20 14:15 ` Andrew Lunn
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