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Thu, 5 Nov 2026 16:19:53 -0500 (EST) From: Ian Bridges To: Wahid Khan Cc: linkinjeon@kernel.org, smfrench@gmail.com, senozhatsky@chromium.org, tom@talpey.com, chenxiaosong@chenxiaosong.com, linux-cifs@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org, Ian Bridges Subject: Re: [PATCH] ksmbd: refuse to read a handle that is not open for reading Date: Thu, 5 Nov 2026 15:19:43 -0600 Message-ID: <20261105211943.696696-1-icb@fastmail.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20261105173838.1882328-1-wahidzk0091@gmail.com> References: <20261105173838.1882328-1-wahidzk0091@gmail.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Thu, Nov 05, 2026 at 11:08:38PM +0530, Wahid Khan wrote: > Return STATUS_ACCESS_DENIED when the file is not readable. Tested on ksmbd-for-next with KASAN. A READ on a handle opened for FILE_WRITE_DATA | FILE_EXECUTE | FILE_READ_ATTRIBUTES hits the warning before and gets STATUS_ACCESS_DENIED after. smbtorture gives the same results as without the patch. Reviewed-by: Ian Bridges Tested-by: Ian Bridges