| Message ID | 20241127152815.151781-1-cel@kernel.org (mailing list archive) |
|---|---|
| Headers | show
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 51ACB1E51D for <linux-fsdevel@vger.kernel.org>; Wed, 27 Nov 2024 15:28:18 +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=1732721299; cv=none; b=W4GDPBPkTRh4M6IHHEPH+hnUmspJFuZdYsEtFnj9s1dx8nisxDCxWYAdgVTGjHTU4pD+yWED6QedCjj6490CurJtU8rnyysWfSZ9pi6hQxXyuMlYeajQPbE6XDjo5AFdkbY8RHCDWx+TautyCnEG5dcFHbZsOUwEj43g6nTaeLo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732721299; c=relaxed/simple; bh=vXhuu8rWP5D+ziEau8olQkqdACNIZwl52zw9hI088Vc=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=E9nNBkpVAMgLDqkKPs5Rji7LIoNHdAylfxW8iyEBkI8byQl9N1z+D5oCqlfccKQB0g2XOBjnwH2v1w9mfQeBSxh647Q8MFFO89PxxyP99SqPa4EBdOrkuNoqOT+RlXu59O+JmYvI7HtwpPtJAzvogxDujQxld3mO6EBaPTIm/54= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Z2FL051Y; 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="Z2FL051Y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 15BBEC4CECC; Wed, 27 Nov 2024 15:28:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1732721298; bh=vXhuu8rWP5D+ziEau8olQkqdACNIZwl52zw9hI088Vc=; h=From:To:Cc:Subject:Date:From; b=Z2FL051YCIyRNmn27VcXND5Be/mAo5STigC1vMG9m02EQh4xkRM7QuvszoifZYSia beMo/tzLVEvGtVbwp+YJQ9jNvooZu7pRvqfYvETf8Sj9S3jPI8s5JW0J50uWU/wavf MidUt+hrJBk1GKJRDRcatricXEFQ/zaD54tD5waD+iZU2JmI7NmGRs0QtChnu9GdU8 Rmwrug/8aCE2UameeOEQf0p72t7dGvV9rDiejyzQehcFEd3pESoSFn1TiN+MuoHNR5 HZLZBfVHoVCprtg0E1GK/Ufi8qeof51OCekhY4FHgYIAuNccyvDD5JULpBhV8Oa0NH iQb5MKTsWDnWg== From: cel@kernel.org To: Hugh Dickens <hughd@google.com>, Christian Brauner <brauner@kernel.org>, Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-fsdevel@vger.kernel.org>, <linux-mm@kvack.org>, yukuai3@huawei.com, yangerkun@huaweicloud.com, Chuck Lever <chuck.lever@oracle.com> Subject: [RFC PATCH v3 0/5] Improve simple directory offset wrap behavior Date: Wed, 27 Nov 2024 10:28:10 -0500 Message-ID: <20241127152815.151781-1-cel@kernel.org> X-Mailer: git-send-email 2.47.0 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: <linux-fsdevel.vger.kernel.org> List-Subscribe: <mailto:linux-fsdevel+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-fsdevel+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit |
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Improve simple directory offset wrap behavior
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From: Chuck Lever <chuck.lever@oracle.com> The purpose of this series is construct a set of upstream fixes that can be backported to v6.6 to address CVE-2024-46701. The v3 series updates yesterday's v2. Some bugs and review comments have been addressed, and the rationale for reverting 64a7ce76fb90 ("libfs: fix infinite directory reads for offset dir") has been clarified. v3 passes xfstests except for generic/637. The series has been pushed to: https://git.kernel.org/pub/scm/linux/kernel/git/cel/linux.git/log/?h=tmpfs-fixes Chuck Lever (5): libfs: Return ENOSPC when the directory offset range is exhausted libfs: Remove unnecessary locking from simple_offset_empty() Revert "libfs: fix infinite directory reads for offset dir" libfs: Refactor end-of-directory detection for simple_offset directories libfs: Refactor offset_iterate_dir() fs/libfs.c | 145 +++++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 107 insertions(+), 38 deletions(-)