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Mon, 21 Sep 2020 09:53:28 +0200 (CEST) Date: Mon, 21 Sep 2020 09:53:28 +0200 From: Gerd Hoffmann To: P J P Subject: Re: [PATCH v2 0/2] hw: usb: hcd-ohci: fix oob access and loop issues Message-ID: <20200921075328.zumquffvf3ojnjes@sirius.home.kraxel.org> References: <20200915182259.68522-1-ppandit@redhat.com> MIME-Version: 1.0 In-Reply-To: <20200915182259.68522-1-ppandit@redhat.com> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=63.128.21.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/09/21 01:44:53 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -45 X-Spam_score: -4.6 X-Spam_bar: ---- X-Spam_report: (-4.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.501, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H5=-1, 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: Prasad J Pandit , Li Qiang , QEMU Developers , Yi Ren , Yongkang Jia , Gaoning Pan Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Tue, Sep 15, 2020 at 11:52:57PM +0530, P J P wrote: > From: Prasad J Pandit > > Hello, > > * While servicing transfer descriptors(TD) in ohci_service[_iso]_td > routines, it may lead to out-of-bounds access and/or infinite loop > issues, as the OHCI controller driver may supply malicious values > to derive frame_number, start_addr, end_addr etc. variables. > > * This series breaks earlier single patch into two. > One for an out-of-bounds access issue and another to fix infinite > loop case. > -> https://lists.nongnu.org/archive/html/qemu-devel/2020-09/msg05145.html Added to usb patch queue. thanks, Gerd