netdev - [PATCH] net/ethernet: ks8851_mll fix rx frame buffer overflow

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: <20120327130144.GA555@recalcati>
Date:	Tue, 27 Mar 2012 15:01:44 +0200
From:	Davide Ciminaghi <ciminaghi@...dd.com>
To:	"David S. Miller" <davem@...emloft.net>,
	Alexey Dobriyan <adobriyan@...il.com>,
	Thomas Meyer <thomas@...3r.de>,
	Wan ZongShun <mcuos.com@...il.com>,
	Lucas De Marchi <lucas.demarchi@...fusion.mobi>,
	netdev@...r.kernel.org
Cc:	raffaele.recalcati@...cino.it
Subject: [PATCH] net/ethernet: ks8851_mll fix rx frame buffer overflow

If interrupts are disabled long enough to allow for more than
32 frames to accumulate in the MAC's internal buffers, a buffer
overflow occurs. This patch fixes the problem by making the
driver's frame_head_info buffer bigger enough.

Signed-off-by: Davide Ciminaghi <ciminaghi@...dd.com>
Signed-off-by: Raffaele Recalcati <raffaele.recalcati@...cino.it>
---
 drivers/net/ethernet/micrel/ks8851_mll.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index 2784bc7..a158e89 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -40,7 +40,7 @@
 #define	DRV_NAME	"ks8851_mll"
 
 static u8 KS_DEFAULT_MAC_ADDRESS[] = { 0x00, 0x10, 0xA1, 0x86, 0x95, 0x11 };
-#define MAX_RECV_FRAMES			32
+#define MAX_RECV_FRAMES			256
 #define MAX_BUF_SIZE			2048
 #define TX_BUF_SIZE			2000
 #define RX_BUF_SIZE			2000
-- 
1.7.0.4

--
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