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[209.132.180.67]) by mx.google.com with ESMTP id q4si1108221pfg.286.2019.06.20.18.21.37; Thu, 20 Jun 2019 18:21:52 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=PPj8F02Q; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726936AbfFUBVG (ORCPT + 99 others); Thu, 20 Jun 2019 21:21:06 -0400 Received: from mail-qt1-f201.google.com ([209.85.160.201]:37023 "EHLO mail-qt1-f201.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725958AbfFUBU4 (ORCPT ); Thu, 20 Jun 2019 21:20:56 -0400 Received: by mail-qt1-f201.google.com with SMTP id g56so6134659qte.4 for ; Thu, 20 Jun 2019 18:20:55 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=oLNQmjwdlyTKvPjBDmq4/qQl+scekmG8pPkpSVBP2pc=; b=PPj8F02Q/dYkdIVv7818Sc92il1uS0VYPm4sWXthtxCkAx9+0zf3l9svFEK/Rd73Bb dlP85f8HS0aKqVmiANlJsQ+Pco5gJHleZOmLKZpIFBQYeCNer5LEb8s3B31OyHkjBDsP ysf4Em6BGot7MalUqrXsCCES1MBjY0Puxn/ceh8bXMFgDsHRGUYhuHkfO4Kgop5VBH2G u2bSHSFpC8HH0U9AaA+FhEG1ewZnSz5d+biNKoE5fRu+5WQpyTBUwW9wTym7HnjODU5s 4xwIu+uUBF8tmFT1PRVYYo4l732jXA1abWbc7mO6CDc9GFTYsr0uoILvAkJmRxBGSBVs lyZQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=oLNQmjwdlyTKvPjBDmq4/qQl+scekmG8pPkpSVBP2pc=; b=gvqHAm6OhKOTa5F4XYnL5wF0owEr6CSTJXhpOU7lgbZ6dCaqoEAbogclma3vbXKnSN 76D3v1m7WA4PZMbpGePTOq7WHPzdUt8ezHyZTpQ1lsWrt0lKxT0HABrwrOwG2GMSMq4o s3TeZ0bLxvt5q6kyXhLThqK8r5SxnnTUX6tO7LPTuid4eHcJamzltUa6p04z8aUyiILe hkFwbHEPfR1kz+hgWTT6ZrzACjFMnVm8Oe6MZ79iW4RdiH9BDBcW7LyZZax9WQcvswUn kcK9ehA5tmZRgRmIMqCClwxoF7ZxPXuSMDbppO28irvjse+FLYxUydZ+OXYGKlgWIC8S 6lUg== X-Gm-Message-State: APjAAAXI45IcEOrln9ZOlNHWD2Mevl1zttWiBOHPndipEqXOn3Xcm+FY uhOXXDRoKslxL08VkyEcRKY5dIuRLeu/3ZDXm6VM0g== X-Received: by 2002:a37:dc45:: with SMTP id v66mr50354812qki.24.1561080055557; Thu, 20 Jun 2019 18:20:55 -0700 (PDT) Date: Thu, 20 Jun 2019 18:19:38 -0700 In-Reply-To: <20190621011941.186255-1-matthewgarrett@google.com> Message-Id: <20190621011941.186255-28-matthewgarrett@google.com> Mime-Version: 1.0 References: <20190621011941.186255-1-matthewgarrett@google.com> X-Mailer: git-send-email 2.22.0.410.gd8fdbe21b5-goog Subject: [PATCH V33 27/30] lockdown: Print current->comm in restriction messages From: Matthew Garrett To: jmorris@namei.org Cc: linux-security@vger.kernel.org, linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, Matthew Garrett , David Howells , Matthew Garrett Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Print the content of current->comm in messages generated by lockdown to indicate a restriction that was hit. This makes it a bit easier to find out what caused the message. The message now patterned something like: Lockdown: : is restricted; see man kernel_lockdown.7 Signed-off-by: David Howells Signed-off-by: Matthew Garrett --- security/lockdown/lockdown.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/security/lockdown/lockdown.c b/security/lockdown/lockdown.c index 14edc475d75c..408f0048f8a2 100644 --- a/security/lockdown/lockdown.c +++ b/security/lockdown/lockdown.c @@ -80,8 +80,8 @@ early_param("lockdown", lockdown_param); static int lockdown_is_locked_down(enum lockdown_reason what) { if ((kernel_locked_down >= what) && lockdown_reasons[what]) - pr_notice("Lockdown: %s is restricted; see man kernel_lockdown.7\n", - lockdown_reasons[what]); + pr_notice("Lockdown: %s: %s is restricted; see man kernel_lockdown.7\n", + current->comm, lockdown_reasons[what]); return (kernel_locked_down >= what); } -- 2.22.0.410.gd8fdbe21b5-goog