From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=115.124.28.218 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1794229271; b=ejODD76+ZQRpK/Hd8c2gbFqh3RVIwmzFHJq+Dt08v+kET6UfPt+P1MTXdyd7WlNYIHgM t2rG29ona8uPAziPM8HdClRHmViw9+pnm+3OAaspQum2A3iujlb0Yf5Nv3ju9SLDj2aAq O7EciEtPcYW7F3BN88K965STp0MjidCi6kSJE+HQtZgbiemyzZ4xfF/qLfjnxv1A6xXrW p+e+ETraE04IHGDU6TrLkt6UPL9gLLbVzoyq9FykY9YEp2T8O0bdroVVuMHyqV0zDCqqU ARXVgAu+m6AGCHscWM+YKg+DKEupNSJiAAUBXuNr2wLRKArSDL1InKKG8yLPHt/8jtg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1794229271; h=DMARC-Filter:DKIM-Signature:X-Alimail-AntiSpam:Received:From:To:Cc: Subject:In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding:Date:Message-ID; bh=E1GGOvtBlaTsUmYtmvnwqkByifPIkOREx0MBTWn/Tmk=; b=5N8xKo20r3w5XulvnAYfUGtyMG/JYsKsH6XgTqM1bihQGzMQhKtqZT06DZr4z+Aq9sMn pQwt8BhfMSYs41Unaw0xkLSid05kAISuBxB5VMWo52zpuBlneX8N+9ntQMSNEvMHwGzzq 268J0piGCDHSmiD6U14J+TMlcC34Ss2f2/c793HchjnC8yVjAYSQ1ovls0wOp1eU/qLqj N1zbeUvOCi2qcrZpc9Ntuu/w7O2BctygUQDeohAR2hXmXFQbBJPC85nwIw28dV4DAq/Cp Gs4I2S5skM3ip9mroiBjJS0oeg/hQusNRGN1b8bfF/ID0i1fan/1qe5Ceq2X32z3fsw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none header.from=xiaopeng.com; spf=pass smtp.mailfrom=xiaopeng.com; dkim=pass header.d=xiaopeng.com header.i=@xiaopeng.com header.a=rsa-sha256 header.s=default header.b=cRi9kA5s; arc=none smtp.remote-ip=115.124.28.218 Received: from out28-218.mail.aliyun.com (out28-218.mail.aliyun.com [115.124.28.218]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7FA96606A321; Mon, 9 Nov 2026 13:01:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.2 smtp.subspace.kernel.org 7FA96606A321 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=xiaopeng.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=xiaopeng.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key, unprotected) header.d=xiaopeng.com header.i=@xiaopeng.com header.a=rsa-sha256 header.s=default header.b=cRi9kA5s DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=xiaopeng.com; s=default; t=1794229260; h=From:To:Subject:MIME-Version:Content-Type:Date:Message-ID; bh=E1GGOvtBlaTsUmYtmvnwqkByifPIkOREx0MBTWn/Tmk=; b=cRi9kA5sFS6J+a7FaRlbDo68s5P7YCoHdnukMM2Ee5hS+12hixfHA/J0V3F/L3gL3Dskx5B7KRmEkpf/G0XK4iL7KTt8LulY7bX9sC3LMuS5JStdE9t0NKpK9jAcuXeLHrMLEmd7eLk+IeN6l4jfPWNadLVgm6t39RQNFU/qNWQ= X-Alimail-AntiSpam:AC=CONTINUE;BC=0.2289389|-1;CH=green;DM=|CONTINUE|false|;DS=CONTINUE|ham_regular_dialog|0.0211135-0.00440467-0.974482;FP=13103200845358019423|0|0|0|0|-1|-1|-1;HT=maildocker-contentspam033037026024;MF=liuwb@xiaopeng.com;NM=1;PH=DS;RN=14;RT=14;SR=0;TI=SMTPD_---.k-FCRfd_1794229257; Received: from 127.0.0.1(mailfrom:liuwb@xiaopeng.com fp:SMTPD_---.k-FCRfd_1794229257 cluster:ay29) by smtp.aliyun-inc.com; Mon, 09 Nov 2026 21:00:58 +0800 From: Weibin Liu To: Roberto Sassu , linux-integrity@vger.kernel.org Cc: linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, Mimi Zohar , Roberto Sassu , Dmitry Kasatkin , Eric Snowberg , Paul Moore , James Morris , "Serge E. Hallyn" , Steven Chen , stable@vger.kernel.org, Zhu Guanglei Subject: Re: [PATCH v2] ima: fix races when deleting measurement list entries In-Reply-To: <95b47e1a0a30022ede9f52ce0e80b0f957097b5b.camel@huaweicloud.com> References: <20261109123335.432186-1-liuwb@xiaopeng.com> <95b47e1a0a30022ede9f52ce0e80b0f957097b5b.camel@huaweicloud.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Date: Mon, 09 Nov 2026 21:00:57 +0800 Message-ID: <179422925743.761920.15976497107095793440@xiaopeng.com> On Mon, 2026-11-09 at 13:49 +0100, Roberto Sassu wrote: > Is it still true with the new semaphore? No. That paragraph describes the unpatched code. The patch serializes writers with ima_measurements_rwsem and protects the lookup and cut with ima_extend_list_mutex.