linux-kernel - [PATCH] MIPS: OCTEON: fix out of bounds array access on CN68XX

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Message-Id: <20181026224634.30560-1-aaro.koskinen@iki.fi>
Date:   Sat, 27 Oct 2018 01:46:34 +0300
From:   Aaro Koskinen <aaro.koskinen@....fi>
To:     Ralf Baechle <ralf@...ux-mips.org>,
        Paul Burton <paul.burton@...s.com>, linux-mips@...ux-mips.org,
        linux-kernel@...r.kernel.org
Cc:     Aaro Koskinen <aaro.koskinen@....fi>
Subject: [PATCH] MIPS: OCTEON: fix out of bounds array access on CN68XX

The maximum number of interfaces is returned by
cvmx_helper_get_number_of_interfaces(), and the value is used to access
interface_port_count[]. When CN68XX support was added, we forgot
to increase the array size. Fix that.

Fixes: 2c8c3f0201333 ("MIPS: Octeon: Support additional interfaces on CN68XX")
Signed-off-by: Aaro Koskinen <aaro.koskinen@....fi>
---
 arch/mips/cavium-octeon/executive/cvmx-helper.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper.c b/arch/mips/cavium-octeon/executive/cvmx-helper.c
index 75108ec669eb..6c79e8a16a26 100644
--- a/arch/mips/cavium-octeon/executive/cvmx-helper.c
+++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c
@@ -67,7 +67,7 @@ void (*cvmx_override_pko_queue_priority) (int pko_port,
 void (*cvmx_override_ipd_port_setup) (int ipd_port);
 
 /* Port count per interface */
-static int interface_port_count[5];
+static int interface_port_count[9];
 
 /**
  * Return the number of interfaces the chip has. Each interface
-- 
2.17.0