From: Herbert Xu <herbert@gondor.apana.org.au>
To: Sabrina Dubroca <sd@queasysnail.net>
Cc: netdev@vger.kernel.org, Steffen Klassert <steffen.klassert@secunet.com>
Subject: Re: [PATCH ipsec] xfrm: ipcomp: fix truesize computation on receive
Date: Sat, 26 Apr 2025 09:53:39 +0800 [thread overview]
Message-ID: <aAw8o89W6F9uLuDo@gondor.apana.org.au> (raw)
In-Reply-To: <f507d25958589ed4e6f62cdc4b8df64865865818.1745591479.git.sd@queasysnail.net>
On Fri, Apr 25, 2025 at 04:32:55PM +0200, Sabrina Dubroca wrote:
> ipcomp_post_acomp currently drops all frags (via pskb_trim_unique(skb,
> 0)), and then subtracts the old skb->data_len from truesize. This
> adjustment has already be done during trimming (in skb_condense), so
> we don't need to do it again.
>
> This shows up for example when running fragmented traffic over ipcomp,
> we end up hitting the WARN_ON_ONCE in skb_try_coalesce.
>
> Fixes: eb2953d26971 ("xfrm: ipcomp: Use crypto_acomp interface")
> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
> ---
> net/xfrm/xfrm_ipcomp.c | 3 +--
> 1 file changed, 1 insertion(+), 2 deletions(-)
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Thanks,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2025-04-26 1:53 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-04-25 14:32 [PATCH ipsec] xfrm: ipcomp: fix truesize computation on receive Sabrina Dubroca
2025-04-26 1:53 ` Herbert Xu [this message]
2025-05-05 7:21 ` Steffen Klassert
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