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 DD416342521 for ; Mon, 12 Jan 2026 08:03:15 +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=1768204995; cv=none; b=hzZf/pZfu6kMq9fAVeVGAU5iUX6+1ENwtqziNisVm6WDjs4/K28TgJhUqIFxAGRVzGzdYkkE5mx+G6e2ZiizivItHU00FPpq2/4XjZmq4GFmxDeZx7hyE95Cn4oPXRUq+WALig+8dwTYdfKbe89pi0kDFtacu/aiI8tBCX36bTQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1768204995; c=relaxed/simple; bh=btnJhDi7Y97Tem7m+oEy0y6GOKJPKQIxGoTpGV5/VlY=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=fvPRHgO5N/atP18zVGbpxz279K4H0NUbSCoK6MQMvsKnspud5jWOCy/1KFZq8Ha2m0MaFVJNPZsonIo69S7HZfwGcZBz4hiKqJoVcgMd4r3G9KTNr0IM2KViblhJp7Iyjr3L2k26P5N1/c/1nNNj9IqdBmuAQKR0Gvnhv/kmQ2g= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=TIizG4/+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="TIizG4/+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 62E06C19423; Mon, 12 Jan 2026 08:03:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1768204995; bh=btnJhDi7Y97Tem7m+oEy0y6GOKJPKQIxGoTpGV5/VlY=; h=From:To:Cc:Subject:Date:From; b=TIizG4/+9LJgmsS/E1R61edXKLmbsSllBnKv6JarDdu6GPf8RYwxZ88xCOoaEYE6G eWrEe6biOXenfDLwtuAYNsFqnqITWIsNrXpmrDJFMws8t120/fUPqJaatRwL0EMa2f qHdC90DCOc8vJDPScZZl33tmjZ0pOXS096aIH1cwF94AcYLqV+hKhDgnC3Mx8+xx+S Jn/LbD528IE7mYnu8OeOCUYa4XmQQ28OIKdJHSYt/45rglnTqr8UUpV3gCgkQWIOEJ 1feShjcIyRZ3IWaN0u9IrzKEIgVaKjYS82QCIpAFGNbJclgw+aqsfZdTaiGwK7ZTEP 8YC0o52DSwTuw== From: Chao Yu To: jaegeuk@kernel.org Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org, Chao Yu Subject: [PATCH v5 1/3] f2fs: fix to do sanity check on node footer in __write_node_folio() Date: Mon, 12 Jan 2026 15:49:15 +0800 Message-Id: <20260112074917.40107-1-chao@kernel.org> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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 --- v5: - split original [patch 1/2] to two, in this patch, just use sanity_check_node_footer() to do sanity check during writeback. fs/f2fs/node.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c index 99e425e8c00a..bd4681a8a646 100644 --- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -1763,7 +1763,11 @@ static bool __write_node_folio(struct folio *folio, bool atomic, bool *submitted /* 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; -- 2.40.1