af_packet: prevent information leak

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In 2.6.27, commit 393e52e33c (packet: deliver VLAN TCI to userspace)
added a small information leak.

Add padding field and make sure its zeroed before copy to user.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
CC: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2011-06-06 22:42:06 -07:00 • committed by David S. Miller

parent 79b3891587

commit 13fcb7bd32

2 changed files with 4 additions and 0 deletions

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include/linux/if_packet.h

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