From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 D68952FFDE6; Tue, 30 Sep 2025 14:59:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759244393; cv=none; b=twZgkQQZQMd+QZse4pVDJ8D2MNxuh/ane3/RlJ6l9bbnvtycPARQ7r3uJb9u5PyErpuUhg4p5ujHu29ZfUFuqmxqFDehWOwnAG7atIFgPfckdeN5ABe6LswmqTZk1sM24Vg99v5hh1lNUwZEMSjV/uNbQE2wqbQS54Base6LgUc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1759244393; c=relaxed/simple; bh=+ckqKY/YALluNXjuqf6p+ltBMFJW6h/UWALqK38DUrk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UitJUvcat2TLSa8j/22uyzWmQDuqoZr0kQRX7hTYnRr6xj23eSQMbIyig+YHWLLWz7hmMWABBEMcKDlyTEoo2O/QdrU979aW2FeWcC88ih1zTM3fgSPHjIdf1mRwckpXabT5ES/6xXmiKm5/YTFw66aJFdHjrfqnYRZvXjAEHP4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=XqDmq3M+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="XqDmq3M+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1ED78C4CEF0; Tue, 30 Sep 2025 14:59:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1759244392; bh=+ckqKY/YALluNXjuqf6p+ltBMFJW6h/UWALqK38DUrk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=XqDmq3M+dAzSWN/Uepe+Qcbq3G6Ov9JlTgSaQbCGTrTIuLNbHG0HYkm0bfWwunYFk +u7qneVWRwdElf0LahaYToVqWQY8TLgyckCCdRNSPZXXPAjoEiC8BRzV1bTI6lnCMC N9SZYJhGdEBX18nvX0QPwFhtpCSP4zPqBvqlIg44= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "Masami Hiramatsu (Google)" Subject: [PATCH 5.10 114/122] tracing: dynevent: Add a missing lockdown check on dynevent Date: Tue, 30 Sep 2025 16:47:25 +0200 Message-ID: <20250930143827.631864607@linuxfoundation.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20250930143822.939301999@linuxfoundation.org> References: <20250930143822.939301999@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Masami Hiramatsu (Google) commit 456c32e3c4316654f95f9d49c12cbecfb77d5660 upstream. Since dynamic_events interface on tracefs is compatible with kprobe_events and uprobe_events, it should also check the lockdown status and reject if it is set. Link: https://lore.kernel.org/all/175824455687.45175.3734166065458520748.stgit@devnote2/ Fixes: 17911ff38aa5 ("tracing: Add locked_down checks to the open calls of files created for tracefs") Signed-off-by: Masami Hiramatsu (Google) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman --- kernel/trace/trace_dynevent.c | 4 ++++ 1 file changed, 4 insertions(+) --- a/kernel/trace/trace_dynevent.c +++ b/kernel/trace/trace_dynevent.c @@ -176,6 +176,10 @@ static int dyn_event_open(struct inode * { int ret; + ret = security_locked_down(LOCKDOWN_TRACEFS); + if (ret) + return ret; + ret = tracing_check_open_get_tr(NULL); if (ret) return ret;