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Date:   Mon, 2 Aug 2021 07:51:20 +0200
From:   Steffen Klassert <>
To:     Pavel Skripkin <>
CC:     <>, <>,
        <>, <>,
Subject: Re: [PATCH next] net: xfrm: fix shift-out-of-bounce

On Wed, Jul 28, 2021 at 07:38:18PM +0300, Pavel Skripkin wrote:
> We need to check up->dirmask to avoid shift-out-of-bounce bug,
> since up->dirmask comes from userspace.
> Also, added XFRM_USERPOLICY_DIRMASK_MAX constant to uapi to inform
> user-space that up->dirmask has maximum possible value
> Fixes: 2d151d39073a ("xfrm: Add possibility to set the default to block if we have no policy")
> Reported-and-tested-by:
> Signed-off-by: Pavel Skripkin <>

Applied, thanks a lot!

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