From: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
To: linux-ia64@vger.kernel.org
Subject: [PATCH][BUG] Fix possible invalid memory access in ia64_setup_msi_irq()
Date: Mon, 26 Mar 2007 00:38:42 +0000 [thread overview]
Message-ID: <46071612.4040900@jp.fujitsu.com> (raw)
The following 'if' statement in ia64_setup_msi_irq() always fails even
if create_irq() returns <0 value, because variable 'irq' is defined as
unsigned int. It would cause invalid memory access.
irq = create_irq();
if (irq < 0)
return irq;
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com>
---
arch/ia64/kernel/msi_ia64.c | 2 +-
1 files changed, 1 insertion(+), 1 deletion(-)
Index: linux-2.6.21-rc5/arch/ia64/kernel/msi_ia64.c
=================================--- linux-2.6.21-rc5.orig/arch/ia64/kernel/msi_ia64.c 2007-03-26 09:24:26.000000000 +0900
+++ linux-2.6.21-rc5/arch/ia64/kernel/msi_ia64.c 2007-03-26 09:25:51.000000000 +0900
@@ -68,7 +68,7 @@
{
struct msi_msg msg;
unsigned long dest_phys_id;
- unsigned int irq, vector;
+ int irq, vector;
irq = create_irq();
if (irq < 0)
reply other threads:[~2007-03-26 0:38 UTC|newest]
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