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(parent: 5952a72) | patch
af_packet: prevent information leak
authorEric Dumazet <eric.dumazet@gmail.com>
Tue, 7 Jun 2011 05:42:06 +0000 (22:42 -0700)
committerGreg Kroah-Hartman <gregkh@suse.de>
Wed, 13 Jul 2011 03:31:27 +0000 (05:31 +0200)
commit26d3cbdece9463926d553dbeed3df10af22bb161
treea540c36f5d9c1fb133fb5ff73fa5c26bb38dad88tree | snapshot
parent5952a72b61eee5675ef9f878fda98e5719ee4f35commit | diff
af_packet: prevent information leak

[ Upstream commit 13fcb7bd322164c67926ffe272846d4860196dc6 ]

In 2.6.27, commit 393e52e33c6c2 (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>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
include/linux/if_packet.h diff | blob | history
net/packet/af_packet.c diff | blob | history
Linux kernel for KaRo TX COM modules