From: sashiko-bot@kernel.org
To: "Sarthak Kukreti" <sarthakkukreti@google.com>
Cc: linux-ext4@vger.kernel.org, tytso@mit.edu
Subject: Re: [PATCH 3/3] f2fs: reject casefolded names that fold to ".", "..", or empty
Date: Fri, 13 Nov 2026 07:00:00 +0000 [thread overview]
Message-ID: <sashiko-outbox-212305@kernel.org> (raw)
In-Reply-To: <20261113065332.929085-4-sarthakkukreti@google.com>
> From: Dmitry Torokhov <dtor@google.com>
>
> Filenames consisting only of ignorable Unicode characters fold to empty
> strings, and names with leading dots and ignorable characters can fold
> to "." or "..". Allowing such names in casefolded directories can corrupt
> directory structure or cause confusion with special entries.
>
> Reject any non-dot names that fold to empty, ".", or ".." during
> casefolded name setup, while still allowing invalid UTF-8 sequences to
> be handled as opaque byte sequences when strict mode is not enabled.
>
> Fixes: 2c2eb7a300cd ("f2fs: Support case-insensitive file name lookups")
> Signed-off-by: Dmitry Torokhov <dtor@google.com>
> Signed-off-by: Sarthak Kukreti <sarthakkukreti@google.com>
Sashiko has reviewed this patch and found no issues.
--
Sashiko AI review · https://sashiko.dev/#/patchset/20261113065332.929085-1-sarthakkukreti@google.com?part=3
prev parent reply other threads:[~2026-11-13 7:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-13 6:53 [PATCH 0/3] fs: reject casefolded names that fold to ".", "..", or empty Sarthak Kukreti
2026-11-13 6:53 ` [PATCH 1/3] libfs: " Sarthak Kukreti
2026-11-13 6:53 ` [PATCH 2/3] ext4: " Sarthak Kukreti
2026-11-13 7:04 ` sashiko-bot
2026-11-13 6:53 ` [PATCH 3/3] f2fs: " Sarthak Kukreti
2026-11-13 7:00 ` sashiko-bot [this message]
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