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From: Jiri Pirko <jiri@resnulli.us>
To: Cong Wang <xiyou.wangcong@gmail.com>
Cc: netdev@vger.kernel.org,
	syzbot+618aacd49e8c8b8486bd@syzkaller.appspotmail.com,
	David Ahern <dsahern@gmail.com>,
	Jamal Hadi Salim <jhs@mojatatu.com>
Subject: Re: [Patch net] net_sched: add max len check for TCA_KIND
Date: Thu, 19 Sep 2019 08:40:46 +0200	[thread overview]
Message-ID: <20190919064046.GC2187@nanopsycho> (raw)
In-Reply-To: <20190918232412.16718-1-xiyou.wangcong@gmail.com>

Thu, Sep 19, 2019 at 01:24:12AM CEST, xiyou.wangcong@gmail.com wrote:
>The TCA_KIND attribute is of NLA_STRING which does not check
>the NUL char. KMSAN reported an uninit-value of TCA_KIND which
>is likely caused by the lack of NUL.
>
>Change it to NLA_NUL_STRING and add a max len too.
>
>Fixes: 8b4c3cdd9dd8 ("net: sched: Add policy validation for tc attributes")
>Reported-and-tested-by: syzbot+618aacd49e8c8b8486bd@syzkaller.appspotmail.com

Acked-by: Jiri Pirko <jiri@mellanox.com>

      parent reply	other threads:[~2019-09-19  6:40 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-18 23:24 [Patch net] net_sched: add max len check for TCA_KIND Cong Wang
2019-09-19  2:41 ` David Ahern
2019-09-19  5:15   ` Cong Wang
2019-09-22  2:24     ` Jakub Kicinski
2019-10-03 19:45       ` Marcelo Ricardo Leitner
2019-10-04 22:54         ` Jakub Kicinski
2019-10-04 23:23           ` Cong Wang
2019-10-04 23:47             ` Jakub Kicinski
2019-09-19  6:40 ` Jiri Pirko [this message]

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