Cong Wang
be6c08bf9a
netfilter: xt_cgroup: initialize info->priv in cgroup_mt_check_v1()
...
commit ba7cd5d95f25cc6005f687dabdb4e7a6063adda9 upstream.
xt_cgroup_info_v1->priv is an internal pointer only used for kernel,
we should not trust what user-space provides.
Reported-by: <syzbot+4fbcfcc0d2e6592bd641@syzkaller.appspotmail.com>
Fixes: c38c4597e4bf ("netfilter: implement xt_cgroup cgroup2 path match")
Cc: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-02-25 11:07:50 +01:00
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