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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Thomas Bogendoerfer <tbogendoerfer@suse.de>,
	Paul Burton <paul.burton@mips.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	James Hogan <jhogan@kernel.org>,
	linux-mips@vger.kernel.org, Sasha Levin <sashal@kernel.org>,
	linux-mips@linux-mips.org
Subject: [PATCH AUTOSEL 5.3 81/89] MIPS: fw: sni: Fix out of bounds init of o32 stack
Date: Fri, 18 Oct 2019 18:03:16 -0400	[thread overview]
Message-ID: <20191018220324.8165-81-sashal@kernel.org> (raw)
In-Reply-To: <20191018220324.8165-1-sashal@kernel.org>

From: Thomas Bogendoerfer <tbogendoerfer@suse.de>

[ Upstream commit efcb529694c3b707dc0471b312944337ba16e4dd ]

Use ARRAY_SIZE to caluculate the top of the o32 stack.

Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-mips@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/mips/fw/sni/sniprom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/fw/sni/sniprom.c b/arch/mips/fw/sni/sniprom.c
index 8772617b64cef..80112f2298b68 100644
--- a/arch/mips/fw/sni/sniprom.c
+++ b/arch/mips/fw/sni/sniprom.c
@@ -43,7 +43,7 @@
 
 /* O32 stack has to be 8-byte aligned. */
 static u64 o32_stk[4096];
-#define O32_STK	  &o32_stk[sizeof(o32_stk)]
+#define O32_STK	  (&o32_stk[ARRAY_SIZE(o32_stk)])
 
 #define __PROM_O32(fun, arg) fun arg __asm__(#fun); \
 				     __asm__(#fun " = call_o32")
-- 
2.20.1


      parent reply	other threads:[~2019-10-18 22:23 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20191018220324.8165-1-sashal@kernel.org>
2019-10-18 22:02 ` [PATCH AUTOSEL 5.3 51/89] MIPS: include: Mark __cmpxchg as __always_inline Sasha Levin
2019-10-18 22:03 ` [PATCH AUTOSEL 5.3 80/89] MIPS: include: Mark __xchg " Sasha Levin
2019-10-18 22:03 ` Sasha Levin [this message]

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