netdev - Re: [PATCH net] batman-adv: fix uninit-value in batadv_interface

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Message-Id: <20190212.103155.2051710354374051033.davem@davemloft.net>
Date:   Tue, 12 Feb 2019 10:31:55 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     edumazet@...gle.com
Cc:     netdev@...r.kernel.org, eric.dumazet@...il.com,
        syzkaller@...glegroups.com
Subject: Re: [PATCH net] batman-adv: fix uninit-value in
 batadv_interface_tx()

From: Eric Dumazet <edumazet@...gle.com>
Date: Mon, 11 Feb 2019 14:41:22 -0800

> KMSAN reported batadv_interface_tx() was possibly using a
> garbage value [1]
> 
> batadv_get_vid() does have a pskb_may_pull() call
> but batadv_interface_tx() does not actually make sure
> this did not fail.
 ...
> Fixes: c6c8fea29769 ("net: Add batman-adv meshing protocol")
> Signed-off-by: Eric Dumazet <edumazet@...gle.com>
> Reported-by: syzbot <syzkaller@...glegroups.com>

Applied and queued up for -stable.