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 0D1AE2C859 for ; Mon, 18 Aug 2025 11:18:44 +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=1755515924; cv=none; b=r455zX5b4TroAcrGksAHRpDDI2IEOtlUZlyoHRBpzO9qR/hk7H1hOob6qP/zGbqYt576uR008cI8LAMcdKyEizSbnHoz3V3Wsr2Jdh1ChVruPElyzqHbmk2AbMbCok7cz4S1hQCdnjQTJLhgF7eh11kwFv0RGWonUFueuavYrQk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755515924; c=relaxed/simple; bh=R3G3P4y5g3XiiUxr3zxBLzfC9Ux7jygfIzwWkKlO0i4=; h=Subject:To:Cc:From:Date:Message-ID:MIME-Version:Content-Type; b=dzQvj+S5fGtlfDs7eeMKdhWXpoWB3v+QivKtEx1WepykErRdlLVV/NONlaWgk4DrLvqceDeg4UT9a8YsJjIdOWKQdOEFcHlGf7mwlYMsGW/q7K067v4mZYD/42AZEXMfFtr7OsIBoybB4EA5VhBZfayXhTH32j5iODMUgu8+Sx8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=ay50VJZh; 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="ay50VJZh" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 6E49EC4CEEB; Mon, 18 Aug 2025 11:18:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1755515923; bh=R3G3P4y5g3XiiUxr3zxBLzfC9Ux7jygfIzwWkKlO0i4=; h=Subject:To:Cc:From:Date:From; b=ay50VJZh+2DU3bkg2g1em9KFClSHEb6f/56v7R1lSCw/M1lWg+80n7fQzCwXcrZpB hHPWNeqsvPoSKJLmU+Fx+xz7mBraOQmV2EIs12Xkn1fDN5RiUHyzWkSL33lGZDDF6d BQkfv3L81zjYPZIIwwxtNR0//mueZe/uFDBDK9LI= Subject: FAILED: patch "[PATCH] ocfs2: reset folio to NULL when get folio fails" failed to apply to 5.4-stable tree To: lizhi.xu@windriver.com,akpm@linux-foundation.org,gechangwei@live.cn,jlbec@evilplan.org,joseph.qi@linux.alibaba.com,junxiao.bi@oracle.com,mark@fasheh.com,piaojun@huawei.com,stable@vger.kernel.org Cc: From: Date: Mon, 18 Aug 2025 13:16:25 +0200 Message-ID: <2025081825-obedience-result-270a@gregkh> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 2ae826799932ff89409f56636ad3c25578fe7cf5 # git commit -s git send-email --to '' --in-reply-to '2025081825-obedience-result-270a@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: thanks, greg k-h ------------------ original commit in Linus's tree ------------------ >From 2ae826799932ff89409f56636ad3c25578fe7cf5 Mon Sep 17 00:00:00 2001 From: Lizhi Xu Date: Mon, 16 Jun 2025 09:31:40 +0800 Subject: [PATCH] ocfs2: reset folio to NULL when get folio fails The reproducer uses FAULT_INJECTION to make memory allocation fail, which causes __filemap_get_folio() to fail, when initializing w_folios[i] in ocfs2_grab_folios_for_write(), it only returns an error code and the value of w_folios[i] is the error code, which causes ocfs2_unlock_and_free_folios() to recycle the invalid w_folios[i] when releasing folios. Link: https://lkml.kernel.org/r/20250616013140.3602219-1-lizhi.xu@windriver.com Reported-by: syzbot+c2ea94ae47cd7e3881ec@syzkaller.appspotmail.com Closes: https://syzkaller.appspot.com/bug?extid=c2ea94ae47cd7e3881ec Signed-off-by: Lizhi Xu Reviewed-by: Joseph Qi Cc: Mark Fasheh Cc: Joel Becker Cc: Junxiao Bi Cc: Changwei Ge Cc: Jun Piao Cc: Signed-off-by: Andrew Morton diff --git a/fs/ocfs2/aops.c b/fs/ocfs2/aops.c index 40b6bce12951..89aadc6cdd87 100644 --- a/fs/ocfs2/aops.c +++ b/fs/ocfs2/aops.c @@ -1071,6 +1071,7 @@ static int ocfs2_grab_folios_for_write(struct address_space *mapping, if (IS_ERR(wc->w_folios[i])) { ret = PTR_ERR(wc->w_folios[i]); mlog_errno(ret); + wc->w_folios[i] = NULL; goto out; } }