tree 57a3a7410835c1868a4fec3a8ed8fbc5020c3526
parent e69647a19c870c2f919e4d5023af8a515e8ef25f
author Alexander Potapenko <glider@google.com> 1521809342 +0100
committer David S. Miller <davem@davemloft.net> 1522026891 -0400

netlink: make sure nladdr has correct size in netlink_connect()

KMSAN reports use of uninitialized memory in the case when |alen| is
smaller than sizeof(struct sockaddr_nl), and therefore |nladdr| isn't
fully copied from the userspace.

Signed-off-by: Alexander Potapenko <glider@google.com>
Fixes: 1da177e4c3f41524 ("Linux-2.6.12-rc2")
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>