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net: mvpp2: Use strscpy to handle stat strings

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[ Upstream commit d37acd5aa9 ]

Use a safe strscpy call to copy the ethtool stat strings into the
relevant buffers, instead of a memcpy that will be accessing
out-of-bound data.

Fixes: 118d6298f6 ("net: mvpp2: add ethtool GOP statistics")
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Maxime Chevallier
2019-06-06 10:42:56 +02:00
committed by Greg Kroah-Hartman
parent d305d61fcf
commit c6a020e011
1 changed files with 2 additions and 2 deletions
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4
drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c
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@@ -1310,8 +1310,8 @@ static void mvpp2_ethtool_get_strings(struct net_device *netdev, u32 sset,
int i;
for (i = 0; i < ARRAY_SIZE(mvpp2_ethtool_regs); i++)
memcpy(data + i * ETH_GSTRING_LEN,
&mvpp2_ethtool_regs[i].string, ETH_GSTRING_LEN);
strscpy(data + i * ETH_GSTRING_LEN,
mvpp2_ethtool_regs[i].string, ETH_GSTRING_LEN);
}
}