From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793722986; b=wTcigA/d4mHH3wCfnUaBB4LDj47nYnl6uQzsg8xQlkIueoZBe8HGYWq9inUpTvkZyNHX re3z1TjQB865zdZkd21j63sWOfENKrjQf2GcNzeNHAKHm0wF04hvKmXeHCfyULcMvxnyd PBNdVMd0hvIADshzOsW3jebXqH5GLoJicRMs6t/yJFK22JScCVrbjRWsjVK6yDC89No5h PKPafoIjeLFA9pmt15+2qTokFgBSfEFHt/gHUpR8vLPIR8uBeY3hOO+Runq2kbRpfwHEp sddiOhs60KWCDYuzED2h+nNPa87j90Yz0gBwpPEloHwS8MKxELi/ua0S2/moifL5NbA== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793722986; h=Received:DKIM-Signature:From:To:Cc:Subject:Date:Message-ID:X-Mailer: MIME-Version:X-Developer-Signature:X-Developer-Key: Content-Transfer-Encoding; bh=93riYcJlLAnFynJurIkyvUiaXMItBgFK98KFEK7jbvc=; b=T37104evkDCeKG8kHKSjWOUnLkjJ7mlYMEgzDxpB3shC+Iwy6ITOJzc5ofWN2TUQFXJV 9f1fgBc748ykpNvDt8K7x/M63mYPkQNLp2ltfBGTZsKYLGqeI+x47jwMHp20mEsyy+dMq y0CjtP2lgGbNX21bqwRbszJBbUZWjYJcH2cJ1DtAPjC/dD47mABP5J6B5gRLOq/RdbuQl Cw4TkyL8Z1wHy5nuATnKQAvUOTFqI+/IVgQ943igdwMBqJeTNoLjbnXO6v0LnmRA0PPOs T0SeQa2MF9Ezm0Akj99vEhMW4f52R/TTlxeYK8vr0CZZc5MDnrsgVFP0KZYlIPbdmoA== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=PHbst4bj; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 87B48606A324; Tue, 3 Nov 2026 16:23:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=PHbst4bj Received: by smtp.kernel.org (Postfix) with ESMTPSA id 762F91F00919; Tue, 3 Nov 2026 16:23:03 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793722986; bh=93riYcJlLAnFynJurIkyvUiaXMItBgFK98KFEK7jbvc=; h=From:To:Cc:Subject:Date; b=PHbst4bjxWvYbgLPWOEMm1vMooIlQtLl1xzM5j2rfP0bf8QBJ527wdNHU4ED5fcZo Jzo7K0K2GGxn/Gf4qzEceickif0Bx3bUNmxLiBX5Mc1n7u95llvXmdKMrnINDKWha5 aKkJIWHEbDrZ5r/jYDl5LJ5cWH26eGpmit6eITCDv2wTUZKxZT7tmeamiXEMzvtkcW qID3i0BBozoIR7HLSJF2v3Br3uhsLG3HDuaBNraWnZQCcQ/dZDC6MYxgrmns8xMFbs 1aygxfkUHSKR4+YAFVgr5YO3VevuaTX31YP08V49vAHlcfB/GJw0NORVjAifm3LGXQ qSCaRW0osdrdA== From: Thorsten Blum To: Ilya Dryomov , Alex Markuze , Xiubo Li , Viacheslav Dubeyko , Kees Cook , "Gustavo A. R. Silva" Cc: Thorsten Blum , ceph-devel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH] libceph: Annotate crush_rule::steps with __counted_by() Date: Tue, 3 Nov 2026 17:22:28 +0100 Message-ID: <20261103162226.433523-3-blum@kernel.org> X-Mailer: git-send-email 2.56.0 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 X-Developer-Signature: v=1; a=openpgp-sha256; l=722; i=blum@kernel.org; h=from:subject; bh=4dEsgy5eXGD2Hw0EYUQ8J0Mbzw0Qy8DSrJ00SHPTElQ=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDFmvuJw++HxSyF52ivnW9JTStZe+V5qGMli8nGDz/KRli BHf4mbfjlIWBjEuBlkxRZYHs37M8C2tqdxkErETZg4rE8gQBi5OAZiIxmRGhrklBmVzrMWzT3FJ brC92Sg6KeLflTyrIuM3zs+/Rm2frsrwz0T01Rb3F95Sn3fxNm0xO3FqbkrMw1qOoKQvB/fO7mC t4QUA X-Developer-Key: i=blum@kernel.org; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: 8bit Add __counted_by() to crush_rule::steps to improve access bounds checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Signed-off-by: Thorsten Blum --- include/linux/crush/crush.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/crush/crush.h b/include/linux/crush/crush.h index 30dba392b730..7d243b9b1093 100644 --- a/include/linux/crush/crush.h +++ b/include/linux/crush/crush.h @@ -87,7 +87,7 @@ struct crush_rule_mask { struct crush_rule { __u32 len; struct crush_rule_mask mask; - struct crush_rule_step steps[]; + struct crush_rule_step steps[] __counted_by(len); }; #define crush_rule_size(len) (sizeof(struct crush_rule) + \