From patchwork Fri Sep 29 18:04:28 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 13404730 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2C52C6667E for ; Fri, 29 Sep 2023 18:04:38 +0000 (UTC) Received: from mail-pf1-x42e.google.com (mail-pf1-x42e.google.com [IPv6:2607:f8b0:4864:20::42e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A9C02CEF for ; Fri, 29 Sep 2023 11:04:35 -0700 (PDT) Received: by mail-pf1-x42e.google.com with SMTP id d2e1a72fcca58-690fe10b6a4so12758781b3a.3 for ; Fri, 29 Sep 2023 11:04:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1696010675; x=1696615475; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=bQWutlCB4bHLvq/a2I2458S6BRe72rUYx34sxiTinJw=; b=eApxWndlLNXcLGDI7qdNZZXvHgci1hddOTLOhu2ZPumPdirclzCbXrx/UzYxxuK0eD p2z0XYHuVas4oelrIZMhfDyeUFbXATdjTD9Ogue+SYg/G1AyWb11seS0QDRvbzupQZX1 zELlgXbgnnC0U5dllKFjhO7JuB9eI0OPI1Qpc= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696010675; x=1696615475; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=bQWutlCB4bHLvq/a2I2458S6BRe72rUYx34sxiTinJw=; b=KvsYpBnwFqxgzuV+FXe2g8Lg/6cFzQyqrapx3Q9GMcie8sEdjn1URLTw0LsfiaBXOX wbNc4TAq+TpW++J0b59mfXHODatJ+G21xYBdrYuy/g/ywumpIc431UrvxnJQdeUBxuJD gTJBC8BK4jF0JSMTXEimutdp9nQspvvFze2EqfaI0XMw9JGhmP728XXXdJx5ElKXQgVf 3JO23IgnajhKn8450lAJIfZeyuKlkjs5LXFz6TeZXZ5+72ChZ6U0TOWCRhhVRnXevFiu Lo0z/h/SENsZRPLMbg59hipTjQO0VmjBzYo4Pmpd9jCP2pDQ9iO5ScsrkczHU5+XvmHy INTA== X-Gm-Message-State: AOJu0YxJCRG0aHEy7o7HXNqnGFDDR+qW6eX2WabpQDHz2bY/mfqHKtQL qb6cfMvxeK7wj1nxtZy3vZVjL/bHt7kKwUuEjxU= X-Google-Smtp-Source: AGHT+IEavR5/wZq99qXsCEoXnSicEQATy8IvkCqg4JpNcBj3w9YLOUXqOXUW6iCClkidWBr7Q/KDng== X-Received: by 2002:a05:6a20:8e12:b0:161:28dd:c09d with SMTP id y18-20020a056a208e1200b0016128ddc09dmr5598820pzj.15.1696010675201; Fri, 29 Sep 2023 11:04:35 -0700 (PDT) Received: from www.outflux.net (198-0-35-241-static.hfc.comcastbusiness.net. [198.0.35.241]) by smtp.gmail.com with ESMTPSA id c16-20020aa78e10000000b0068c61848785sm15228538pfr.208.2023.09.29.11.04.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 29 Sep 2023 11:04:34 -0700 (PDT) From: Kees Cook To: Jason Gunthorpe Cc: Kees Cook , Bart Van Assche , Leon Romanovsky , linux-rdma@vger.kernel.org, Dennis Dalessandro , =?utf-8?q?H?= =?utf-8?q?=C3=A5kon_Bugge?= , Avihai Horon , Anand Khoje , Mark Bloch , Christian Benvenuti , Nelson Escobar , Bernard Metzler , "Gustavo A. R. Silva" , Nathan Chancellor , Nick Desaulniers , Tom Rix , Patrisious Haddad , Chuck Lever , Tom Talpey , wangjianli , linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org, llvm@lists.linux.dev Subject: [PATCH 5/7] IB/srp: Annotate struct srp_fr_pool with __counted_by Date: Fri, 29 Sep 2023 11:04:28 -0700 Message-Id: <20230929180431.3005464-5-keescook@chromium.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230929180305.work.590-kees@kernel.org> References: <20230929180305.work.590-kees@kernel.org> Precedence: bulk X-Mailing-List: linux-hardening@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=1220; i=keescook@chromium.org; h=from:subject; bh=f7YIXZ1Qz/PkvmeFE/JHjleuWcRLUOMOaQc0DRTvzX0=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBlFxGu9/IB5ROJ/iD1IoxO8XdZ0HuofI5lXB9aL 4bAV2SnX/yJAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCZRcRrgAKCRCJcvTf3G3A JoxWD/0ZjY+XrVB7gRnT53mKtziWVn+VsfedclKqQTgWGlk9obHRRC5h+bABdwKSf2M/x0wCQFH mVEbvAQDpHgR+Dff6jNIv+1QcHHO5DEpLiYDrFKCu1/+V+cLcW3uIl03j4j6xaJezo6eOsw7zsV qHzukxETpc8mlb33IZR04S4xPeQwpdejzndnDFde/ViDV8t7iidPzE4mWvdYon1+2aPCgI7eBj7 bDR2OEb2yciSxCKdenFa3rByvJjqQPe6KHlxylQVLI29zQl5R+r/Sj4Z8gKsqvOBTRFFL8iQkdf TGtYluwh/Ok9tXHWmhOgxLEGkSuf3GZXYI+1zMXmpbcd1EOuD6WN0sZs5M2+FWQS/ZkTn7pzuR3 Qqc3lS05bvXdyE+BCBVWVGygCQvfDP5e2QbVTnBFC5yP9AzrhU9jErH+oUyQu+gLRyZGKGudIo6 ZhmGK2XtDlfZi0gaOKPQBdxkczkTLGAZ5NOKJQ+3k3WAfZ/7Xgg7NYu7Jdp2BudK2CvN5uRrond /rlpeDTxx2K62/qlY2LI7OmJWB7Px2i5bSW5g77AzDdVNvqzIRyg4mgIKNvjaYTCoeRWVCGCb9X cfBJppmtpmPQhtwSnT8SALM8cw5PP2q7Rci6HUL9dTUXHDHKCIQW1muP+rHVMhXbvap6GSo1vMt 1AjoxAt0tusmfDA== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct srp_fr_pool. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Bart Van Assche Cc: Jason Gunthorpe Cc: Leon Romanovsky Cc: linux-rdma@vger.kernel.org Signed-off-by: Kees Cook --- drivers/infiniband/ulp/srp/ib_srp.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/ulp/srp/ib_srp.h b/drivers/infiniband/ulp/srp/ib_srp.h index 5d94db453df3..349576ff3845 100644 --- a/drivers/infiniband/ulp/srp/ib_srp.h +++ b/drivers/infiniband/ulp/srp/ib_srp.h @@ -306,7 +306,7 @@ struct srp_fr_pool { int max_page_list_len; spinlock_t lock; struct list_head free_list; - struct srp_fr_desc desc[]; + struct srp_fr_desc desc[] __counted_by(size); }; /**