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 CDABB259CBD; Tue, 17 Feb 2026 20:49:35 +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=1771361375; cv=none; b=dNoTW/y1gE8uvp2wtbGnhozRpcO4b94sTi4lJedxMyiJDsst8b9feP4nq6re2YFyGLN6gvG7aZycR0Ar5mYkyi71wFzK09YvWYdq/lsnhytAm6JENldFgfwl56/pHo/iqfHYs7woiEkLhoQljeksHseyCXb+SzaA+EQFtKJMr04= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771361375; c=relaxed/simple; bh=llPBtgJ984N0E9RdNOBd4LRk9dt3Lw3nRO9F36grLDs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=luL0DPHkC2CbkenLkHIig662wSHUzEUtLWHglGBz0qfa9NXMtp5NmKd8n5b1xFNNYkOuE4N2w5/L/pGD2z8otgfCqcFsWML7mt3luPID1lt/mLw8sZ+i/vcy3bSx98QqYOGRqgwrpCoizFt9APqW22waiBW/1P5YNzscEgwfK9U= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=K5kC+Fzl; 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="K5kC+Fzl" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E3D94C4CEF7; Tue, 17 Feb 2026 20:49:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1771361375; bh=llPBtgJ984N0E9RdNOBd4LRk9dt3Lw3nRO9F36grLDs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=K5kC+FzlJejZy2VI5hdHz0CRq8L4mAabA5FxgKGay3iezG9XCSdIKl/fEqPwO0quz PemBZXXWsvfAUf/MB1iWEGB+ctyeNLyXLGw7ETMTQqMjD4sL+j5r5k2eXBO56azHdj dRbTu+hd7Q7ulV6qU7KBg/3DHhtDKLOYOpmnUTtA= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chao Yu , Jaegeuk Kim , Sasha Levin Subject: [PATCH 6.19 17/18] f2fs: fix to do sanity check on node footer in __write_node_folio() Date: Tue, 17 Feb 2026 21:32:13 +0100 Message-ID: <20260217200003.362259729@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260217200002.683975158@linuxfoundation.org> References: <20260217200002.683975158@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chao Yu [ Upstream commit 0a736109c9d29de0c26567e42cb99b27861aa8ba ] Add node footer sanity check during node folio's writeback, if sanity check fails, let's shutdown filesystem to avoid looping to redirty and writeback in .writepages. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- fs/f2fs/node.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1751,7 +1751,11 @@ static bool __write_node_folio(struct fo /* get old block addr of this node page */ nid = nid_of_node(folio); - f2fs_bug_on(sbi, folio->index != nid); + + if (sanity_check_node_footer(sbi, folio, nid, NODE_TYPE_REGULAR)) { + f2fs_handle_critical_error(sbi, STOP_CP_REASON_CORRUPTED_NID); + goto redirty_out; + } if (f2fs_get_node_info(sbi, nid, &ni, !do_balance)) goto redirty_out;