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bh=qj0ZBD8AvqS0rQyC0Oq5uPiYBhnPcF9aTiXlKd1kl/Q=; b=Bsh+aa+iZUq4ilykrpH0SQj3a7DZIjEJnT4fUpgxQz/i+gMIiMEOnDvQmw2gucHypxRILi qdtrQaqotYrAiUSAY6b6Wk415tbpzsrxkFf3FUW4ukjxKidKB2+4mJM3o3nYz+HL6xKldj omb4lPuN4fSwU5UY+1S9KIUIDcuBJD4= X-MC-Unique: aAdlOLfyORyDFk7KyJyZow-1 From: Jason Wang To: qemu-devel@nongnu.org, peter.maydell@linaro.org Subject: [PULL 10/13] net/eth: Check size earlier in _eth_get_rss_ex_dst_addr() Date: Mon, 22 Mar 2021 18:08:09 +0800 Message-Id: <1616407692-693-11-git-send-email-jasowang@redhat.com> In-Reply-To: <1616407692-693-1-git-send-email-jasowang@redhat.com> References: <1616407692-693-1-git-send-email-jasowang@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.14 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=jasowang@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=216.205.24.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=-0.01, RCVD_IN_MSPIKE_WL=-0.01, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Jason Wang , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) From: Philippe Mathieu-Daud=C3=A9 Reviewed-by: Stefano Garzarella Reviewed-by: Miroslav Rezanina Signed-off-by: Philippe Mathieu-Daud=C3=A9 Signed-off-by: Jason Wang --- net/eth.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/net/eth.c b/net/eth.c index 5eb05bd..087aa71 100644 --- a/net/eth.c +++ b/net/eth.c @@ -406,16 +406,14 @@ _eth_get_rss_ex_dst_addr(const struct iovec *pkt, int= pkt_frags, struct in6_address *dst_addr) { struct ip6_ext_hdr_routing *rthdr =3D (struct ip6_ext_hdr_routing *) e= xt_hdr; + size_t input_size =3D iov_size(pkt, pkt_frags); + size_t bytes_read; =20 - if ((rthdr->rtype =3D=3D 2) && (rthdr->segleft =3D=3D 1)) { - - size_t input_size =3D iov_size(pkt, pkt_frags); - size_t bytes_read; - - if (input_size < ext_hdr_offset + sizeof(*ext_hdr)) { - return false; - } + if (input_size < ext_hdr_offset + sizeof(*ext_hdr)) { + return false; + } =20 + if ((rthdr->rtype =3D=3D 2) && (rthdr->segleft =3D=3D 1)) { bytes_read =3D iov_to_buf(pkt, pkt_frags, ext_hdr_offset + sizeof(*rthdr), dst_addr, sizeof(*dst_addr)); --=20 2.7.4