tree 95b8c29e8589b36bdf8e90dc9b8d5379f6b272ba
parent c66919125757e2d336de0ac467f8358aca0c1c5b
author Davide Caratti <dcaratti@redhat.com> 1528426951 +0200
committer Greg Kroah-Hartman <gregkh@linuxfoundation.org> 1529971686 +0800

net/sched: act_simple: fix parsing of TCA_DEF_DATA

[ Upstream commit 8d499533e0bc02d44283dbdab03142b599b8ba16 ]

use nla_strlcpy() to avoid copying data beyond the length of TCA_DEF_DATA
netlink attribute, in case it is less than SIMP_MAX_DATA and it does not
end with '\0' character.

v2: fix errors in the commit message, thanks Hangbin Liu

Fixes: fa1b1cff3d06 ("net_cls_act: Make act_simple use of netlink policy.")
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>