netdev - [net-2.6 PATCH] be2net: Fix to avoid firmware update when interface is not open.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20101118140755.GA9686@emulex.com>
Date:	Thu, 18 Nov 2010 19:37:56 +0530
From:	Sarveshwar Bandi <Sarveshwar.Bandi@...lex.com>
To:	<netdev@...r.kernel.org>
CC:	<davem@...emloft.net>
Subject: [net-2.6 PATCH] be2net: Fix to avoid firmware update when
 interface is not open.

Since interrupts are enabled only when open is called on the interface,
Attempting a firmware update operation when interface is down could lead to
partial success or failure of operation. This fix fails the request if
netif_running is false.

Signed-off-by: Sarveshwar Bandi <Sarveshwar.Bandi@...lex.com>
---
 drivers/net/benet/be_main.c |    6 ++++++
 1 files changed, 6 insertions(+), 0 deletions(-)

diff --git a/drivers/net/benet/be_main.c b/drivers/net/benet/be_main.c
index c36cd2f..cc85cf2 100644
--- a/drivers/net/benet/be_main.c
+++ b/drivers/net/benet/be_main.c
@@ -2458,6 +2458,12 @@ int be_load_fw(struct be_adapter *adapte
 	int status, i = 0, num_imgs = 0;
 	const u8 *p;

+	if (!netif_running(adapter->netdev)) {
+		dev_err(&adapter->pdev->dev,
+			"Firmware load not allowed (interface is down)\n");
+		return -1;
+	}
+
 	strcpy(fw_file, func);

 	status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
-- 
1.4.0

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html