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Date:   Sun, 26 Feb 2017 21:26:21 -0500 (EST)
From:   David Miller <>
Subject: Re: [PATCH net] ipv6: check sk sk_type and protocol early in

From: Xin Long <>
Date: Fri, 24 Feb 2017 16:29:06 +0800

> Commit 5e1859fbcc3c ("ipv4: ipmr: various fixes and cleanups") fixed
> the issue for ipv4 ipmr:
>   ip_mroute_setsockopt() & ip_mroute_getsockopt() should not
>   access/set raw_sk(sk)->ipmr_table before making sure the socket
>   is a raw socket, and protocol is IGMP
> The same fix should be done for ipv6 ipmr as well.
> This patch can fix the panic caused by overwriting the same offset
> as ipmr_table as in raw_sk(sk) when accessing other type's socket
> by ip_mroute_setsockopt().
> Signed-off-by: Xin Long <>

Applied and queued up for -stable, thanks.

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