linux-kernel - [PATCH AUTOSEL 6.11 12/13] f2fs: print message if fscorrupted was found in f2fs_new_node

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20241204160044.2216380-12-sashal@kernel.org>
Date: Wed,  4 Dec 2024 11:00:37 -0500
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Chao Yu <chao@...nel.org>,
	Jaegeuk Kim <jaegeuk@...nel.org>,
	Sasha Levin <sashal@...nel.org>,
	linux-f2fs-devel@...ts.sourceforge.net
Subject: [PATCH AUTOSEL 6.11 12/13] f2fs: print message if fscorrupted was found in f2fs_new_node_page()

From: Chao Yu <chao@...nel.org>

[ Upstream commit 81520c684ca67aea6a589461a3caebb9b11dcc90 ]

If fs corruption occurs in f2fs_new_node_page(), let's print
more information about corrupted metadata into kernel log.

Meanwhile, it updates to record ERROR_INCONSISTENT_NAT instead
of ERROR_INVALID_BLKADDR if blkaddr in nat entry is not
NULL_ADDR which means nat bitmap and nat entry is inconsistent.

Signed-off-by: Chao Yu <chao@...nel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/f2fs/node.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index b72ef96f7e33a..6ed4b1b2e7d94 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -1331,7 +1331,12 @@ struct page *f2fs_new_node_page(struct dnode_of_data *dn, unsigned int ofs)
 		err = -EFSCORRUPTED;
 		dec_valid_node_count(sbi, dn->inode, !ofs);
 		set_sbi_flag(sbi, SBI_NEED_FSCK);
-		f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
+		f2fs_warn_ratelimited(sbi,
+			"f2fs_new_node_page: inconsistent nat entry, "
+			"ino:%u, nid:%u, blkaddr:%u, ver:%u, flag:%u",
+			new_ni.ino, new_ni.nid, new_ni.blk_addr,
+			new_ni.version, new_ni.flag);
+		f2fs_handle_error(sbi, ERROR_INCONSISTENT_NAT);
 		goto fail;
 	}
 #endif
-- 
2.43.0