From: Dan Carpenter <dan.carpenter@oracle.com>
To: Andrew Lunn <andrew@lunn.ch>, Russell King <rmk+kernel@armlinux.org.uk>
Cc: "Vivien Didelot" <vivien.didelot@gmail.com>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Vladimir Oltean" <olteanv@gmail.com>,
"David S. Miller" <davem@davemloft.net>,
"Jakub Kicinski" <kuba@kernel.org>,
"Marek Behún" <kabel@kernel.org>,
netdev@vger.kernel.org, kernel-janitors@vger.kernel.org
Subject: [PATCH 1/2 net-next] net: dsa: mv88e6xxx: Fix off by in one in mv88e6185_phylink_get_caps()
Date: Mon, 7 Feb 2022 11:22:53 +0300 [thread overview]
Message-ID: <20220207082253.GA28514@kili> (raw)
The <= ARRAY_SIZE() needs to be < ARRAY_SIZE() to prevent an out of
bounds error.
Fixes: d4ebf12bcec4 ("net: dsa: mv88e6xxx: populate supported_interfaces and mac_capabilities")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
drivers/net/dsa/mv88e6xxx/chip.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c
index 7670796c2aa1..192a7688b4df 100644
--- a/drivers/net/dsa/mv88e6xxx/chip.c
+++ b/drivers/net/dsa/mv88e6xxx/chip.c
@@ -585,7 +585,7 @@ static void mv88e6185_phylink_get_caps(struct mv88e6xxx_chip *chip, int port,
{
u8 cmode = chip->ports[port].cmode;
- if (cmode <= ARRAY_SIZE(mv88e6185_phy_interface_modes) &&
+ if (cmode < ARRAY_SIZE(mv88e6185_phy_interface_modes) &&
mv88e6185_phy_interface_modes[cmode])
__set_bit(mv88e6185_phy_interface_modes[cmode],
config->supported_interfaces);
--
2.20.1
next reply other threads:[~2022-02-07 8:33 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-07 8:22 Dan Carpenter [this message]
2022-02-07 8:24 ` [PATCH 2/2 net-next] net: dsa: mv88e6xxx: Unlock on error in mv88e6xxx_port_bridge_join() Dan Carpenter
2022-02-07 10:10 ` [PATCH 1/2 net-next] net: dsa: mv88e6xxx: Fix off by in one in mv88e6185_phylink_get_caps() Russell King (Oracle)
2022-02-07 12:40 ` patchwork-bot+netdevbpf
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