linux-kernel - Re: KASAN+netlink, was: [PATCH] [net-next?] hns: avoid stack overflow with CONFIG

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Message-Id: <20170208.112716.1778159455570583655.davem@davemloft.net>
Date:   Wed, 08 Feb 2017 11:27:16 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     arnd@...db.de
Cc:     netdev@...r.kernel.org, stable@...r.kernel.org,
        linux-kernel@...r.kernel.org, a.ryabinin@...sung.com,
        johannes.berg@...el.com, nikolay@...ulusnetworks.com,
        nicolas.dichtel@...nd.com, adobriyan@...il.com
Subject: Re: KASAN+netlink, was: [PATCH] [net-next?] hns: avoid stack
 overflow with CONFIG_KASAN

From: Arnd Bergmann <arnd@...db.de>
Date: Wed, 08 Feb 2017 13:03:59 +0100

> Things I've tried here are:
> 
> - Moving nla_put_{u8,u16,u32} out of line is probably uncontroversial and
>   it helps enough with br_netlink.c, but nl820211 is worse and needs some
>   additional fiddling.

This is probably the least intrusive solution if it works.