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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id F1B86C001E0 for ; Wed, 2 Aug 2023 12:44:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=RQhr8In9eYB3SCPeMBcOfIk/tMdTESlLQ/dkgAAdbaI=; b=jYNF/Ii8rnIsUM J0BVjd5+0A+E+vjIiLzXHRXqUjLhtvAkjPCyC3b5XGaPKbiIeHKTZNxm3hAWeP16c4/fQxQb33S8W 7L0tQ5Rbqk1M9eddLY68law5O97nAQc/0+x9aokcF96Rxw685RED1E3ketosaBmiNpwLS8QURwpJt VZQA6u6GTZTSL43V0Wny4Zu1ZDNzyMWFcx2JjQ7xW/5AAK+0eaM0bcDa3vfNznm2+LldT02SAui84 GyX/ES1giqZVy7AOfFNgGvPnQNAPRpLmdzSuRAzZ4QB3lWRl+Sr/7LI8Tfm12QCNBrjvs4tqn8Mzt 4ZEfED5tg8pKiHkol7lw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1qRBDV-004vOY-0I; Wed, 02 Aug 2023 12:44:41 +0000 Received: from relay7-d.mail.gandi.net ([2001:4b98:dc4:8::227]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1qRBDR-004vNu-09 for linux-mtd@lists.infradead.org; Wed, 02 Aug 2023 12:44:39 +0000 Received: by mail.gandi.net (Postfix) with ESMTPSA id 7AC5C20004; Wed, 2 Aug 2023 12:44:27 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1690980270; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8dOawE5kxCNhvhOKy8LNvd/QWehP28IWgnL5mXG3Rew=; b=P0MhsdyMGZ3XJmzlSk4CllYXA1geVTZWmr2Fjyv88Q7ZPbHTwBOY5k2DAO10JT5OBplmOH AkBEeUvauITGmK6ZBJFuyrm00gpgRlP2bOcLdHV440gFQUtFiggkLxUePTWXmrNCKkpqhY EGBLCDf8ZfXprGt5SE+XdzM+LdOBAWV3F79mVQH6J9Ho+ErqTC05FGasNo8+wDhuEmugMM P2t52sXwv0DEpNOjNaTUYrGW2Nnu0EhVpz4IgSJ1QQ6q6zE2V6BXxF5ax4F47OMdGcjYSa OYxOfE1neZ7jzISDyTQOAr6lACPpVNakre4JdzAU23aukqgVknLj69Y+J4mtjA== Date: Wed, 2 Aug 2023 14:44:26 +0200 From: Miquel Raynal To: "zhangxiaoxu (A)" Cc: "Usyskin, Alexander" , Andy Shevchenko , Richard Weinberger , Vignesh Raghavendra , "linux-mtd@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "Winkler, Tomas" , "Lubart, Vitaly" Subject: Re: [PATCH] mtd: fix use-after-free in mtd release Message-ID: <20230802144426.2411bba2@xps-13> In-Reply-To: References: <20230727145758.3880967-1-alexander.usyskin@intel.com> <20230727172013.7c85c05d@xps-13> <20230727183611.37d01f51@xps-13> Organization: Bootlin X-Mailer: Claws Mail 4.0.0 (GTK+ 3.24.33; x86_64-pc-linux-gnu) MIME-Version: 1.0 X-GND-Sasl: miquel.raynal@bootlin.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230802_054437_247725_15B1CE53 X-CRM114-Status: UNSURE ( 8.65 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org SGkgemhhbmcsCgp6aGFuZ3hpYW94dTVAaHVhd2VpLmNvbSB3cm90ZSBvbiBNb24sIDMxIEp1bCAy MDIzIDA5OjM1OjQyICswODAwOgoKPiDlnKggMjAyMy83LzMwIDE5OjEwLCBVc3lza2luLCBBbGV4 YW5kZXIg5YaZ6YGTOgo+ID4gTWlxdWVsLCBpcyB0aGlzIHBhdGNoIGhlbHBzIHdpdGggeW91ciBv cmlnaW5hbCBwcm9ibGVtIG9mIGRldmljZXMgbm90IGZyZWVkPwo+ID4gCj4gPiBaaGFuZywgaXMg dGhpcyBwYXRjaCBoZWxwcyB3aXRoIHlvdXIgcHJvYmxlbSB3aXRoIEtBc2FuPyAgCj4gQWZ0ZXIg dGhpcyBwYXRjaCBhcHBsaWVkLCB0aGUgcHJvYmxlbSBjYW4gc3RpbGwgYmUgcmVwcm9kdWNlZC4K CkRpZCB5b3UgdGVzdCBteSBwYXRjaCBhcyB3ZWxsPyBEb2VzIEthc2FuIHN0aWxsIGNvbXBsYWlu IHdpdGggaXQ/CgpUaGFua3MsCk1pcXXDqGwKCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fXwpMaW51eCBNVEQgZGlzY3Vzc2lvbiBtYWlsaW5nIGxp c3QKaHR0cDovL2xpc3RzLmluZnJhZGVhZC5vcmcvbWFpbG1hbi9saXN0aW5mby9saW51eC1tdGQv Cg==