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Message-Id: <20240215042654.359210-7-eugen.hristev@collabora.com>
Date: Thu, 15 Feb 2024 06:26:52 +0200
From: Eugen Hristev <eugen.hristev@...labora.com>
To: tytso@....edu,
adilger.kernel@...ger.ca,
linux-ext4@...r.kernel.org,
jaegeuk@...nel.org,
chao@...nel.org,
linux-f2fs-devel@...ts.sourceforge.net,
linux-fsdevel@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
kernel@...labora.com,
eugen.hristev@...labora.com,
viro@...iv.linux.org.uk,
brauner@...nel.org,
jack@...e.cz,
krisman@...e.de,
Gabriel Krisman Bertazi <krisman@...labora.com>,
Eric Biggers <ebiggers@...gle.com>
Subject: [PATCH v10 6/8] ext4: Log error when lookup of encoded dentry fails
From: Gabriel Krisman Bertazi <krisman@...labora.com>
If the volume is in strict mode, ext4_ci_compare can report a broken
encoding name. This will not trigger on a bad lookup, which is caught
earlier, only if the actual disk name is bad.
Reviewed-by: Eric Biggers <ebiggers@...gle.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@...labora.com>
Signed-off-by: Eugen Hristev <eugen.hristev@...labora.com>
---
fs/ext4/namei.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 6e7af8dc4dde..7d357c417475 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -1477,6 +1477,9 @@ static bool ext4_match(struct inode *parent,
* only case where it happens is on a disk
* corruption or ENOMEM.
*/
+ if (ret == -EINVAL)
+ EXT4_ERROR_INODE(parent,
+ "Directory contains filename that is invalid UTF-8");
return false;
}
return ret;
--
2.34.1
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