From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2902BC3F6B0 for ; Mon, 22 Aug 2022 21:21:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237930AbiHVVVG (ORCPT ); Mon, 22 Aug 2022 17:21:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47226 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238052AbiHVVVF (ORCPT ); Mon, 22 Aug 2022 17:21:05 -0400 Received: from mail-qk1-x72a.google.com (mail-qk1-x72a.google.com [IPv6:2607:f8b0:4864:20::72a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A13DB5208E for ; Mon, 22 Aug 2022 14:21:03 -0700 (PDT) Received: by mail-qk1-x72a.google.com with SMTP id f14so8949869qkm.0 for ; Mon, 22 Aug 2022 14:21:03 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=paul-moore-com.20210112.gappssmtp.com; s=20210112; h=content-transfer-encoding:mime-version:user-agent:message-id:date :cc:to:from:subject:from:to:cc; bh=5RQRl53BMMbcV3UBpkUvMw0kVRmuERrDcog8F29EXKk=; b=XxTaY88L6YyDi4q4wmCk8eVhxMP+iLwiTQfB+DWrM8PTcGLBvO8N71ubEFVUt83vYA wdnD/fZmhMHsA9CfRa30LDpuYjZBFBee5jEo0dzDLzzEvvtbBR8P9Btu6S9Njwn6lz9q D5p7andXJ/eFjisCdzDEogdJKwtPCaGa425/HNYL6WAYn8VN/00nGGzBslxj6FN2XFUe RL/93480d1VSeSt+2h/uOGO55rmFRfWs6Cah4Wzys7DoYbZ+2N0WLpHIs+LMiA/yddYU 40Hu9gdGDOMjJyTZm4sLwRZdlJ+jh/vXDMuYpQ26A1fELppD8lNBdIUPP8kKDUzyzMn2 D5lw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:user-agent:message-id:date :cc:to:from:subject:x-gm-message-state:from:to:cc; bh=5RQRl53BMMbcV3UBpkUvMw0kVRmuERrDcog8F29EXKk=; b=2EMKnA/2/feJZyHA/4JjnA5thDdI7MP7XNm0SM7ToFAYeN4jDjC2W5Ox7MWtZZ4BI3 ljasNDeCvKxoc1xFIpo/4RMO2QQ6aJEmLDsW8q9F9SoevEz8jccvhg3jb3Dg1+z8M6a+ V6+76QHkJ9s1OxqawexNG1MCUDBX/VLtKSqdUZArT4tzS7fBgQDM02/BpRS3KEFW7NgB ZG44GwyrmOS2vcB4NE4P7K5BQ6A4UZo9ZP1je506J5tkLrsBUHG1UOO62QB1LrnB43hn pREEq+Rbv9elxBNbzp28aMCbEVxNc/DIBCWkRzLqa7orlysAtC4X43jL7z2uf4Sp0iEn XHHw== X-Gm-Message-State: ACgBeo0YwNSOw7bhH15x2TUPGPb20lzXMxcGECmR//9Zi0ec2Fs3FcUm 1PPojSsUvIAcF9clSX3i7GaE X-Google-Smtp-Source: AA6agR5HRvyFM8nlzlvFRus8PX8jMZnrW3P+rNROq/qiCc53eyykqUoFMwCw7xUqAQrocMjVabC3Ng== X-Received: by 2002:a37:cc5:0:b0:6bb:93e9:54f with SMTP id 188-20020a370cc5000000b006bb93e9054fmr13958588qkm.114.1661203262755; Mon, 22 Aug 2022 14:21:02 -0700 (PDT) Received: from localhost (pool-96-237-52-46.bstnma.fios.verizon.net. [96.237.52.46]) by smtp.gmail.com with ESMTPSA id m1-20020a05620a290100b006b95f832aebsm11627625qkp.96.2022.08.22.14.21.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Aug 2022 14:21:02 -0700 (PDT) Subject: [PATCH 0/3] LSM hooks for IORING_OP_URING_CMD From: Paul Moore To: linux-security-module@vger.kernel.org, selinux@vger.kernel.org, io-uring@vger.kernel.org Cc: Arnd Bergmann , Greg Kroah-Hartman , Luis Chamberlain Date: Mon, 22 Aug 2022 17:21:01 -0400 Message-ID: <166120321387.369593.7400426327771894334.stgit@olly> User-Agent: StGit/1.5 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: io-uring@vger.kernel.org This patchset includes three patches: one to add a new LSM hook for the IORING_OP_URING_CMD operation, one to add the SELinux implementation for the new hook, and one to enable IORING_OP_URING_CMD for /dev/null. The last patch, the /dev/null support, is obviously not critical but it makes testing so much easier and I believe is in keeping with the general motivation behind /dev/null. Luis' patch has already been vetted by Jens and the io_uring folks, so the only new bits are the SELinux implementation and the trivial /dev/null implementation of IORING_OP_URING_CMD. Assuming no one has any objections over the next few days, I'll plan on sending this up to Linus during the v6.0-rcX cycle. I believe Casey is also currently working on Smack support for the IORING_OP_URING_CMD hook, and as soon as he is ready I can add it to this patchset (or Casey can send it up himself). -Paul --- Luis Chamberlain (1): lsm,io_uring: add LSM hooks for the new uring_cmd file op Paul Moore (2): selinux: implement the security_uring_cmd() LSM hook /dev/null: add IORING_OP_URING_CMD support drivers/char/mem.c | 6 ++++++ include/linux/lsm_hook_defs.h | 1 + include/linux/lsm_hooks.h | 3 +++ include/linux/security.h | 5 +++++ io_uring/uring_cmd.c | 5 +++++ security/security.c | 4 ++++ security/selinux/hooks.c | 24 ++++++++++++++++++++++++ security/selinux/include/classmap.h | 2 +- 8 files changed, 49 insertions(+), 1 deletion(-)