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authorMathias Krause <minipli@googlemail.com>2013-03-09 05:52:20 +0000
committerDavid S. Miller <davem@davemloft.net>2013-03-10 05:19:26 -0400
commit84d73cd3fb142bf1298a8c13fd4ca50fd2432372 (patch)
tree8575649889787ab0ba141927e4e1d3c1d0c43f68 /net/dcb
parentc085c49920b2f900ba716b4ca1c1a55ece9872cc (diff)
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rtnl: fix info leak on RTM_GETLINK request for VF devices
Initialize the mac address buffer with 0 as the driver specific function will probably not fill the whole buffer. In fact, all in-kernel drivers fill only ETH_ALEN of the MAX_ADDR_LEN bytes, i.e. 6 of the 32 possible bytes. Therefore we currently leak 26 bytes of stack memory to userland via the netlink interface. Signed-off-by: Mathias Krause <minipli@googlemail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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