From: "De Lara Guarch, Pablo" <pablo.de.lara.guarch@intel.com>
To: "Gonzalez Monroy, Sergio" <sergio.gonzalez.monroy@intel.com>,
"Tomasz Duszynski" <tdu@semihalf.com>,
"dev@dpdk.org" <dev@dpdk.org>
Cc: "stable@dpdk.org" <stable@dpdk.org>
Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH] examples/ipsec-secgw: fix ip version check
Date: Mon, 16 Oct 2017 14:46:06 +0000 [thread overview]
Message-ID: <E115CCD9D858EF4F90C690B0DCB4D8976CC34AC8@IRSMSX108.ger.corp.intel.com> (raw)
In-Reply-To: <89f28ab9-22c1-977e-c986-d691408d9a78@intel.com>
> -----Original Message-----
> From: stable [mailto:stable-bounces@dpdk.org] On Behalf Of Sergio
> Gonzalez Monroy
> Sent: Monday, October 16, 2017 10:57 AM
> To: Tomasz Duszynski <tdu@semihalf.com>; dev@dpdk.org
> Cc: stable@dpdk.org
> Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH] examples/ipsec-secgw: fix ip
> version check
>
> On 13/10/2017 13:50, Tomasz Duszynski wrote:
> > Since new_ip and ip4 are overlapping buffers copying ip4 over new_ip
> > using memmove() might overwrite memory at ip4. This could happen if
> > following condition holds:
> >
> > ip_hdr_len > sizeof(struct esp_hdr) + sa->iv_len
> >
> > Thus using ip4 to check ip version is wrong as it might not contain
> > proper value.
> >
> > Fixes: f159e70b0922 ("examples/ipsec-secgw: support transport mode")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Tomasz Duszynski <tdu@semihalf.com>
> > ---
> > examples/ipsec-secgw/esp.c | 2 +-
> > 1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/examples/ipsec-secgw/esp.c b/examples/ipsec-secgw/esp.c
> > index 2897840..063e63f 100644
> > --- a/examples/ipsec-secgw/esp.c
> > +++ b/examples/ipsec-secgw/esp.c
> > @@ -307,8 +307,8 @@ esp_outbound(struct rte_mbuf *m, struct
> ipsec_sa *sa,
> > sizeof(struct esp_hdr) + sa->iv_len);
> > memmove(new_ip, ip4, ip_hdr_len);
> > esp = (struct esp_hdr *)(new_ip + ip_hdr_len);
> > + ip4 = (struct ip *)new_ip;
> > if (likely(ip4->ip_v == IPVERSION)) {
> > - ip4 = (struct ip *)new_ip;
> > ip4->ip_p = IPPROTO_ESP;
> > ip4->ip_len = htons(rte_pktmbuf_data_len(m));
> > } else {
>
> Acked-by: Sergio Gonzalez Monroy <sergio.gonzalez.monroy@intel.com>
Applied to dpdk-next-crypto.
Thanks,
Pablo
prev parent reply other threads:[~2017-10-16 14:46 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-13 12:50 [dpdk-stable] " Tomasz Duszynski
2017-10-16 9:56 ` [dpdk-stable] [dpdk-dev] " Sergio Gonzalez Monroy
2017-10-16 10:43 ` Aviad Yehezkel
2017-10-16 14:46 ` De Lara Guarch, Pablo [this message]
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