From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-184.mta0.migadu.com (out-184.mta0.migadu.com [91.218.175.184]) (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 5EEA4385517 for ; Tue, 17 Mar 2026 20:18:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.184 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773778727; cv=none; b=Abfn+9cM0ynfLCrmANRjLG3ijHSfZan0hQaonG9893usMo/lciF5ZcUDu8AlTDL3enD9MfuMF0R69fDV7WEWPUppKq7LnW4r3/n3UM8z5xLfwisQlBHWwca0ZjkgySEjxRAdf7RgtpjCBNFYP8MKL/MDBq4ZAxQ2E7euza4Mo/g= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773778727; c=relaxed/simple; bh=rr9c7b7Bg8HmED96qIytYPhFZybnAlnT+6xjQRz6Vhk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=h6GvoQNeJ7lfrJwbfW4et2YHhKDcUsXm3Cw1aBdB9J8fs14UwqfpfrEu9KoMm97jF4ujqtfy8+wJGu6/pto/uNKJNaGI4uuilr/ZKAw9FQxcuQ8PcGCKMsQtzolctJbsQO5TYaFFlfYnXT8G3BhD0olDgWAHeu7h97p4sAxD0RY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=prJZOGnH; arc=none smtp.client-ip=91.218.175.184 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="prJZOGnH" X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1773778724; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=YokNPDBKB47On83Stit2XVqNDOPxCXgKpwFpqg0JOMo=; b=prJZOGnHkGu1i4Hjq/hZEc7bucV1GxtQn76Yg+4nomNnHfNq2HFTUCGGUeATEz9cQpHogH 5/pxYddwxRFnayGgi6Cy0GUXTY43Ul/dpmHmBlIWs6W/dIbzWtW3h5Hfp12TVhvYxCwKkv 5NzUw26qxV6dG4Md6BD5+pFbewD6knc= From: Thorsten Blum To: Haren Myneni , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Herbert Xu , "David S. Miller" , Kees Cook , "Gustavo A. R. Silva" Cc: Thorsten Blum , linuxppc-dev@lists.ozlabs.org, linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH] crypto: nx - annotate struct nx842_crypto_header with __counted_by Date: Tue, 17 Mar 2026 21:18:06 +0100 Message-ID: <20260317201804.1393389-3-thorsten.blum@linux.dev> Precedence: bulk X-Mailing-List: linux-crypto@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=955; i=thorsten.blum@linux.dev; h=from:subject; bh=rr9c7b7Bg8HmED96qIytYPhFZybnAlnT+6xjQRz6Vhk=; b=owGbwMvMwCUWt7pQ4caZUj3G02pJDJk7t/0xyVm2QfVq6/S8LTv3yptMM800fJ3WNumi3WGvk kccZRmnO0pZGMS4GGTFFFkezPoxw7e0pnKTScROmDmsTCBDGLg4BWAiluyMDHtY1Y/81P+y4c6O eQeXrBLIqX9UZ26jdq/R3TxPJzXEyoyR4YZH1PLfP+68O3vqtq2MSUGR4NubrMHJ7+3KT+0K5t6 7mQMA X-Developer-Key: i=thorsten.blum@linux.dev; a=openpgp; fpr=1D60735E8AEF3BE473B69D84733678FD8DFEEAD4 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT Add the __counted_by() compiler attribute to the flexible array member 'group' to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Signed-off-by: Thorsten Blum --- drivers/crypto/nx/nx-842.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/nx/nx-842.h b/drivers/crypto/nx/nx-842.h index f5e2c82ba876..a04e85e9f78e 100644 --- a/drivers/crypto/nx/nx-842.h +++ b/drivers/crypto/nx/nx-842.h @@ -164,7 +164,7 @@ struct nx842_crypto_header { __be16 ignore; /* decompressed end bytes to ignore */ u8 groups; /* total groups in this header */ ); - struct nx842_crypto_header_group group[]; + struct nx842_crypto_header_group group[] __counted_by(groups); } __packed; static_assert(offsetof(struct nx842_crypto_header, group) == sizeof(struct nx842_crypto_header_hdr), "struct member likely outside of struct_group_tagged()");