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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 37A54C6FD1F for ; Wed, 8 Mar 2023 01:05:55 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229785AbjCHBFy (ORCPT ); Tue, 7 Mar 2023 20:05:54 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43400 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229524AbjCHBFo (ORCPT ); Tue, 7 Mar 2023 20:05:44 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4FAC1A90BB; Tue, 7 Mar 2023 17:05:39 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id D5CF8B81B4F; Wed, 8 Mar 2023 01:05:38 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 68A0CC433EF; Wed, 8 Mar 2023 01:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1678237537; bh=dYYn4a2lT6nxiPkxxJPnp39TVtltB1r6i1JaXQjx9/U=; h=Date:To:From:Subject:From; b=suosglbxbAFD5eRMjUQp1VHMyvWF2sBDrPX6PgH2nuSvpd4qVAh7o94YkJW7rsEsD 1C4WnrNv353mLywXzEg+uVGf1dTAHoc31f1ASdhW7pZinXKEUGwXQ0CGXpNvl8a2RE /z0IwNBYT8pDlLHkddZVvOuZSuaZa32PDiQuTroY= Date: Tue, 07 Mar 2023 17:05:36 -0800 To: mm-commits@vger.kernel.org, willy@infradead.org, wangkefeng.wang@huawei.com, vishal.moola@gmail.com, stable@vger.kernel.org, sj@kernel.org, akpm@linux-foundation.org From: Andrew Morton Subject: [merged mm-hotfixes-stable] mm-damon-paddr-fix-folio_size-call-after-folio_put-in-damon_pa_young.patch removed from -mm tree Message-Id: <20230308010537.68A0CC433EF@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org The quilt patch titled Subject: mm/damon/paddr: fix folio_size() call after folio_put() in damon_pa_young() has been removed from the -mm tree. Its filename was mm-damon-paddr-fix-folio_size-call-after-folio_put-in-damon_pa_young.patch This patch was dropped because it was merged into the mm-hotfixes-stable branch of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm ------------------------------------------------------ From: SeongJae Park Subject: mm/damon/paddr: fix folio_size() call after folio_put() in damon_pa_young() Date: Sat, 4 Mar 2023 19:39:48 +0000 Patch series "mm/damon/paddr: Fix folio-use-after-put bugs". There are two folio accesses after folio_put() in mm/damon/paddr.c file. Fix those. This patch (of 2): damon_pa_young() is accessing a folio via folio_size() after folio_put() for the folio has invoked. Fix it. Link: https://lkml.kernel.org/r/20230304193949.296391-1-sj@kernel.org Link: https://lkml.kernel.org/r/20230304193949.296391-2-sj@kernel.org Fixes: 397b0c3a584b ("mm/damon/paddr: remove folio_sz field from damon_pa_access_chk_result") Signed-off-by: SeongJae Park Reviewed-by: Kefeng Wang Reviewed-by: Matthew Wilcox (Oracle) Cc: Vishal Moola (Oracle) Cc: [6.2.x] Signed-off-by: Andrew Morton --- --- a/mm/damon/paddr.c~mm-damon-paddr-fix-folio_size-call-after-folio_put-in-damon_pa_young +++ a/mm/damon/paddr.c @@ -130,7 +130,6 @@ static bool damon_pa_young(unsigned long accessed = false; else accessed = true; - folio_put(folio); goto out; } @@ -144,10 +143,10 @@ static bool damon_pa_young(unsigned long if (need_lock) folio_unlock(folio); - folio_put(folio); out: *folio_sz = folio_size(folio); + folio_put(folio); return accessed; } _ Patches currently in -mm which might be from sj@kernel.org are