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Date:   Wed, 22 May 2019 11:17:00 +0800
From:   Herbert Xu <>
To:     Anirudh Gupta <>
Cc:     Steffen Klassert <>,
        Anirudh Gupta <>,
        "David S. Miller" <>,,
Subject: Re: [PATCH net] xfrm: Fix xfrm sel prefix length validation

On Tue, May 21, 2019 at 08:59:47PM +0530, Anirudh Gupta wrote:
> Family of src/dst can be different from family of selector src/dst.
> Use xfrm selector family to validate address prefix length,
> while verifying new sa from userspace.
> Validated patch with this command:
> ip xfrm state add src dst proto esp spi 4260196 \
> reqid 20004 mode tunnel aead "rfc4106(gcm(aes))" \
> 0x1111016400000000000000000000000044440001 128 \
> sel src 1011:1:4::2/128 sel dst 1021:1:4::2/128 dev Port5
> Fixes: 07bf7908950a ("xfrm: Validate address prefix lengths in the xfrm selector.")
> Signed-off-by: Anirudh Gupta <>

Acked-by: Herbert Xu <>
Email: Herbert Xu <>
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