linux-kernel - [PATCH] [SCSI] fusion: ensure NUL-termination of MptCallbacksName elements

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Date:	Thu, 25 Aug 2011 14:44:57 +0200
From:	Ferenc Wagner <wferi@...f.hu>
To:	Kashyap@....ki.iif.hu, Desai <kashyap.desai@....com>,
	support@....com, DL-MPTFusionLinux@....com,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] [SCSI] fusion: ensure NUL-termination of MptCallbacksName elements

Signed-off-by: Ferenc Wagner <wferi@...f.hu>
---
 drivers/message/fusion/mptbase.c |    5 ++---
 drivers/message/fusion/mptbase.h |    1 +
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index 7956a10..eb906e2 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -113,7 +113,7 @@ module_param(mpt_fwfault_debug, int, 0600);
 MODULE_PARM_DESC(mpt_fwfault_debug,
 		 "Enable detection of Firmware fault and halt Firmware on fault - (default=0)");
 
-static char	MptCallbacksName[MPT_MAX_PROTOCOL_DRIVERS][50];
+static char	MptCallbacksName[MPT_MAX_PROTOCOL_DRIVERS][MPT_MAX_CALLBACKNAME_LEN+1];
 
 #ifdef MFCNT
 static int mfcounter = 0;
@@ -656,8 +656,7 @@ mpt_register(MPT_CALLBACK cbfunc, MPT_DRIVER_CLASS dclass, char *func_name)
 			MptDriverClass[cb_idx] = dclass;
 			MptEvHandlers[cb_idx] = NULL;
 			last_drv_idx = cb_idx;
-			memcpy(MptCallbacksName[cb_idx], func_name,
-			    strlen(func_name) > 50 ? 50 : strlen(func_name));
+			strlcpy(MptCallbacksName[cb_idx], func_name, MPT_MAX_CALLBACKNAME_LEN+1);
 			break;
 		}
 	}
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index fe90233..c10416d 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -89,6 +89,7 @@
  */
 #define MPT_MAX_ADAPTERS		18
 #define MPT_MAX_PROTOCOL_DRIVERS	16
+#define MPT_MAX_CALLBACKNAME_LEN	49
 #define MPT_MAX_BUS			1	/* Do not change */
 #define MPT_MAX_FC_DEVICES		255
 #define MPT_MAX_SCSI_DEVICES		16
-- 
1.6.5

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