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[192.131.102.54]) by smtp.gmail.com with ESMTPSA id d75a77b69052e-4518a76f863sm40057131cf.82.2024.08.06.11.36.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 06 Aug 2024 11:36:49 -0700 (PDT) Date: Tue, 6 Aug 2024 14:36:47 -0400 From: Alan Stern To: color Ice Cc: gregkh@linuxfoundation.org, kvalo@kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org, linux-wireless@vger.kernel.org, mark.esler@canonical.com, stf_xl@wp.pl Subject: Re: Ubuntu RT2X00 WIFI USB Driver Kernel NULL pointer Dereference&Use-After-Free Vulnerability Message-ID: References: <2024080359-getaway-concave-623e@gregkh> <20240806015904.1004435-1-wirelessdonghack@gmail.com> Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Wed, Aug 07, 2024 at 12:47:26AM +0800, color Ice wrote: > Hi, > > I'm glad that you can address this issue. I believe that this is indeed a > vulnerability because the issue is caused by the rt2x00 driver's failure to > properly shut down its async queues. While it requires sudo to execute, it > is still a problem as it can trigger a kernel system exception. We can > imagine that this vulnerability could be executed without root permissions > in certain scenarios. For instance, in many embedded systems, configuring > udev rules might be necessary to ensure automated operations, and in such > scenarios, it can be triggered without root permissions. > > Therefore, I believe that from a vulnerability perspective, it should > indeed be eligible for a CVE, as it can be fixed and it is indeed a flaw. > If this vulnerability is not addressed, future driver processing and > adaptation may encounter robustness and security issues. I believe security > issues should be handled with the corresponding seriousness. > > Thank you. You didn't answer my question. Are you able to test patches? Alan Stern