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(parent: 65b3480) | patch
packet: validate address length
authorWillem de Bruijn <willemb@google.com>
Fri, 21 Dec 2018 17:06:59 +0000 (12:06 -0500)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 9 Jan 2019 16:14:44 +0000 (17:14 +0100)
commit9eee85ed843fbec123e39a330495cfc4ca2b871f
treebd5ca4c49599457333fb7a26a9aa58e1ad48da1dtree | snapshot
parent65b3480236d80d69792b1ac378139459fb79afeecommit | diff
packet: validate address length

[ Upstream commit 99137b7888f4058087895d035d81c6b2d31015c5 ]

Packet sockets with SOCK_DGRAM may pass an address for use in
dev_hard_header. Ensure that it is of sufficient length.

Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/packet/af_packet.c diff | blob | history
Domain: System / Kernel;