From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qk1-f176.google.com (mail-qk1-f176.google.com [209.85.222.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EA70928D85A for ; Fri, 11 Apr 2025 20:29:39 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744403381; cv=none; b=roMHWbUgA8vssNRfGOfNqnn/2zOYUVMGr24VcpDmC4cEmXZXPOE5FU5Oe05dtPb9siiH8H2/IiJ7jR/ESkww+kSP0aU2O7gZFQh+T0yH2jhJ5ArbsXeTItVck3uohlp8WcdnG/c72SCDheicDLGuuTHrXKGi0WS5cWA+uS5QRd0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744403381; c=relaxed/simple; bh=yfZ7tSoVUlgX2zAOigOxPAbHH5o70chJtfqLZj811rc=; h=Date:Message-ID:MIME-Version:Content-Type:From:To:Cc:Subject: References:In-Reply-To; b=clEKXDUk884snQ9vgWTjzxm2JWGY8lkxN9erTp0qSmqWf8Pe+gicdprX4jyIMxtKaLHYqZB4ky88rzBDVAek1u4WY0NeB3FWL6zNnco11Vjy4qzTzat1pbJAdZAxucRquVvQtGX2E3Q/YQyjXk7yVvOCHYLiRCHKED26HOnB8Vw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=paul-moore.com; spf=pass smtp.mailfrom=paul-moore.com; dkim=pass (2048-bit key) header.d=paul-moore.com header.i=@paul-moore.com header.b=J4q3tkaN; arc=none smtp.client-ip=209.85.222.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=paul-moore.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=paul-moore.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=paul-moore.com header.i=@paul-moore.com header.b="J4q3tkaN" Received: by mail-qk1-f176.google.com with SMTP id af79cd13be357-7c560c55bc1so249679485a.1 for ; Fri, 11 Apr 2025 13:29:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=paul-moore.com; s=google; t=1744403379; x=1745008179; darn=vger.kernel.org; h=in-reply-to:references:subject:cc:to:from:content-transfer-encoding :mime-version:message-id:date:from:to:cc:subject:date:message-id :reply-to; bh=udx8P5NQgti6FOsmWgVm69I0Zh1i+WolhwcYzN3WDvs=; b=J4q3tkaNtRFIicpeJxa6YNjci735jlGkg7rFCar+Z7sYItlaqf9gNPaHrC5N93OSmy J4GOmAAy4BLExOa3Trys1UgredqQIB+3aOTWsc69uV0JnqaYepZT4QbcqTXTAsBXruaP u239HmOj+NQ3SF+XZelllTGa4KNEA1IJd+GLBtwoTg/XIkTWjZQFKO7Iq1GT57qo3jOe af21Ggzs55yZasGLMizrCnD2LnHodcUKDdz0OmIYWtxt0JvIksJng58ghnIY0sUFV3fO 3TjoJ3XqAgmk6KPGvGek0ybhKJ4EN//MiNZHXshDZfLCkf2dyn0oZllVCJsQRAjxFsdl c8Ag== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1744403379; x=1745008179; h=in-reply-to:references:subject:cc:to:from:content-transfer-encoding :mime-version:message-id:date:x-gm-message-state:from:to:cc:subject :date:message-id:reply-to; bh=udx8P5NQgti6FOsmWgVm69I0Zh1i+WolhwcYzN3WDvs=; b=M4JobZkk62/qJHhNfeSNJ7UivyW+AMAD0xswf5jZhOIAsqHNQFoKQCGpnDuXRCoCyD kt3YsxTDNj2kPA3PcdCX2RmRQ3qqoRWdnLzczAl7WOBzED1VDcZwPNLGx5DNA/ofc1Wr Ymaehd2Tjh1o7ZWlW8mjFpTjCP46G1gSw/8F2uWB6x4q6ktZ/KOWJn7WnXuasgTPerxh sQqKArE6YG7LM8GcEwSkst3cuYLU6aevQvuPLjgZmMhbUM/x51zGqzlHaFgjZH9XxeAv SEsOHHukseiVeB2IlvEjM5jcM2MGmtz7+hTO410sgql5YWGqrMQi3q94g3RGMDaTsJKR pILQ== X-Forwarded-Encrypted: i=1; AJvYcCV/9ooKy2w2638YeCVt7YHyrDs9DjyzX8Q/cApSZerGDceDt6GLWNfboSFIuNd4+nI/DCVw/t3b6PKZP4g=@vger.kernel.org X-Gm-Message-State: AOJu0YzsEYIAH1RvlmiDn1aDu2UUqXqJ+wSJo2qDHWyAZpJPNxbN8sFP BA/D5uJ0LhsKus3q229BjV79zCearEteFmcX/eS+YZSvZqdOcbJ9eQRhgqUM3A== X-Gm-Gg: ASbGncsphEXjEkV/L452ooi9SEF2I+weaAkSTiEpmb6xALILsgqUsh1ZXZ0vSz09GAw Wp+DSH5eUOTw7qKOVYPns6j/hOsRREdZXEALgzxzlOpozZ69dXNCi2/ndJADHIETub/Lz/qsnf/ z372URw5rrSJgKbYLNR4Ku/rXlxH5vD04Lrhrhmjgi01njtdNzG/Nk2ORMZVlqdYRQ04u8uPMLH 3dlEOsKuji9Vgtv29bkJGxYslKWTwX+U6ZOGehEObj16rtKD2ucfw2U09r8mAnDkCsc6Vei07Ux LXaCLwb6Kyir5uVhk6HJMnlwhzxz8SFEKgxVZn5JkS1F4R71BP4GYuGrogDoAnHmLbo3DwhPrfo LrR30FhB5Ig== X-Google-Smtp-Source: AGHT+IHAZKi3da6H9ZT6r5+1QkoznXgFAO4EgfroOWd3yfn68Dolte8fO5VnmxOOmYKtTSskUzNiQQ== X-Received: by 2002:a05:620a:4554:b0:7c7:739d:5cea with SMTP id af79cd13be357-7c7af12dc20mr617096885a.35.1744403378650; Fri, 11 Apr 2025 13:29:38 -0700 (PDT) Received: from localhost (pool-71-126-255-178.bstnma.fios.verizon.net. [71.126.255.178]) by smtp.gmail.com with UTF8SMTPSA id af79cd13be357-7c7a896a15dsm308067185a.56.2025.04.11.13.29.37 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 11 Apr 2025 13:29:38 -0700 (PDT) Date: Fri, 11 Apr 2025 16:29:37 -0400 Message-ID: <4e6ec6918748074d1f081320eba38eda@paul-moore.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Mailer: pstg-pwork:20250411_1406/pstg-lib:20250411_1552/pstg-pwork:20250411_1406 From: Paul Moore To: =?UTF-8?q?Christian=20G=C3=B6ttsche?= Cc: =?UTF-8?q?Christian=20G=C3=B6ttsche?= , Stephen Smalley , Ondrej Mosnacek , =?UTF-8?q?Thi=C3=A9baud=20Weksteen?= , =?UTF-8?q?Bram=20Bonn=C3=A9?= , Casey Schaufler , Canfeng Guo , GUO Zihua , Chen Zhou , selinux@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH RFC 5/6] selinux: unify OOM handling in network hashtables References: <20250318083422.21489-4-cgoettsche@seltendoof.de> In-Reply-To: <20250318083422.21489-4-cgoettsche@seltendoof.de> On Mar 18, 2025 =?UTF-8?q?Christian=20G=C3=B6ttsche?= wrote: > > For network objects, like interfaces, nodes, port and InfiniBands, the > object to SID lookup is cached in hashtables. OOM during such hashtable > additions of new objects is considered non-fatal and the computed SID is > simply returned without adding the compute result into the hash table. > > Actually ignore OOM in the InfiniBand code, despite the comment already > suggesting to do so. This reverts commit c350f8bea271 ("selinux: Fix > error return code in sel_ib_pkey_sid_slow()"). > > Add comments in the other places. > > Use kmalloc() instead of kzalloc(), since all members are initialized on > success and the data is only used in internbal hash tables, so no risk > of information leakage to userspace. > > Fixes: c350f8bea271 ("selinux: Fix error return code in sel_ib_pkey_sid_slow()") > Signed-off-by: Christian Göttsche > --- > security/selinux/ibpkey.c | 11 +++++------ > security/selinux/netif.c | 6 +++++- > security/selinux/netnode.c | 5 ++++- > security/selinux/netport.c | 6 +++++- > 4 files changed, 19 insertions(+), 9 deletions(-) Merged into selinux/dev, thanks! -- paul-moore.com