Re: [PATCH] ipv4: Fix runtime WARNING in rtmsg_ifa()

From: David Miller
Date: Thu Feb 06 2014 - 23:03:15 EST


From: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Date: Wed, 5 Feb 2014 08:38:25 +0100

> On m68k/ARAnyM:
...
> Adding some debugging code reveals that net_fill_ifaddr() fails in
>
> put_cacheinfo(skb, ifa->ifa_cstamp, ifa->ifa_tstamp,
> preferred, valid))
>
> nla_put complains:
>
> lib/nlattr.c:454: skb_tailroom(skb) = 12, nla_total_size(attrlen) = 20
>
> Apparently commit 5c766d642bcaffd0c2a5b354db2068515b3846cf ("ipv4:
> introduce address lifetime") forgot to take into account the addition of
> struct ifa_cacheinfo in inet_nlmsg_size(). Hence add it, like is already
> done for ipv6.
>
> Suggested-by: Cong Wang <cwang@xxxxxxxxxxxxxxxx>
> Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>

Applied and queued up for -stable, thanks!
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