linux-kernel - Re: [B.A.T.M.A.N.] [PATCH][next] batman-adv: don't pass a NULL hard_iface to batadv_hardif

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Message-ID: <1552330.yTaGxcYA6e@sven-edge>
Date:   Sat, 24 Mar 2018 10:36:15 +0100
From:   Sven Eckelmann <sven@...fation.org>
To:     b.a.t.m.a.n@...ts.open-mesh.org
Cc:     Colin King <colin.king@...onical.com>,
        Marek Lindner <mareklindner@...mailbox.ch>,
        Simon Wunderlich <sw@...onwunderlich.de>,
        Antonio Quartulli <a@...table.cc>,
        "David S . Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [B.A.T.M.A.N.] [PATCH][next] batman-adv: don't pass a NULL hard_iface to batadv_hardif_put

On Freitag, 23. März 2018 23:53:50 CET Colin King wrote:
> From: Colin Ian King <colin.king@...onical.com>
> 
> In the case where hard_iface is NULL, the error path may pass a null
> pointer to batadv_hardif_put causing a null pointer dereference error.
> Avoid this by only calling the function if  hard_iface not null.
> 
> Detected by CoverityScan, CID#1466456 ("Explicit null dereferenced")
> 
> Fixes: 53dd9a68ba68 ("batman-adv: add multicast flags netlink support")
> Signed-off-by: Colin Ian King <colin.king@...onical.com>
> ---
>  net/batman-adv/multicast.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Queued up for David in batadv/net-next as d5863c47d725 [1]

Now I only have to find out why I didn't receive the mail about this 
from coverity.

Thanks,
	Sven

[1] https://git.open-mesh.org/linux-merge.git/commit/d5863c47d7255448ec01713cbdb4f94b370d86ad
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