netdev - Re: [Patch nf v2 3/3] xt_hashlimit: limit the max size of hashtable

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Message-ID: <20200203120633.GQ795@breakpoint.cc>
Date:   Mon, 3 Feb 2020 13:06:33 +0100
From:   Florian Westphal <fw@...len.de>
To:     Cong Wang <xiyou.wangcong@...il.com>
Cc:     netdev@...r.kernel.org, fw@...len.de,
        netfilter-devel@...r.kernel.org,
        syzbot+adf6c6c2be1c3a718121@...kaller.appspotmail.com,
        Pablo Neira Ayuso <pablo@...filter.org>,
        Jozsef Kadlecsik <kadlec@...filter.org>
Subject: Re: [Patch nf v2 3/3] xt_hashlimit: limit the max size of hashtable

Cong Wang <xiyou.wangcong@...il.com> wrote:
> The user-specified hashtable size is unbound, this could
> easily lead to an OOM or a hung task as we hold the global
> mutex while allocating and initializing the new hashtable.

Reviewed-by: Florian Westphal <fw@...len.de>