From patchwork Fri Dec 20 15:33:09 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Chuck Lever X-Patchwork-Id: 13916881 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 D612D218EAD for ; Fri, 20 Dec 2024 15:33:17 +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=1734708799; cv=none; b=TK4HWY8txucSN885C7m4s5HulhNm/xzjMVeTVmfhdImzVV465udeH/Uzak3d+XsWJaKAFyWysxeJEot7WJlY/cF09vlzH9UrhPNEmHMdfLJnMqlEjd/xm2Qucg4SwUuKpYSUxhiuGcUBHRaf/0vTqh1syx1y580slmY6N2lpQck= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734708799; c=relaxed/simple; bh=uKpdjPl/prEWmgIxsZT3Fna9IFkvWwQid/TKaFC1+gk=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=mQXwhtZsyc7ongxbP25W7HG49joFJ104D5j0AjYsBx/Mgm/5dFML1uUuAjELB9KVJU7WjXMxS7ZZJlbxuby8SQ86t6VT+nzNjH+avr2Dd4FsrihcmpXdQ87C+GC8LqDMQz7JgIra3pDAZligyOcfmLUT0mc1MHs8TPYYy+N5qUk= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=mlUzhc6m; 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="mlUzhc6m" Received: by smtp.kernel.org (Postfix) with ESMTPSA id A86F6C4CED3; Fri, 20 Dec 2024 15:33:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1734708797; bh=uKpdjPl/prEWmgIxsZT3Fna9IFkvWwQid/TKaFC1+gk=; h=From:To:Cc:Subject:Date:From; b=mlUzhc6mB+m1G8Q4irZgSegZI3kwD+Jv3zKQ29Z7WSQEntCKaaooo01B0WP3QoC2E 05kMoj5KlN+LM4HGT7psxX3CVnBboUX/C0j4CBef72VgIILMWYqFAm8Qb1w+HhkzHZ 1keGAowkYTGL9lveG48rXehevtqP0MRNKVFFwQ6wjjcwPrB6bGDDPkRdaWNlOg1YCq KdpxljRYAs28TGS/n5e7HVOSW5U/kbtrklSH83/nc3KbaJvAVEw0ktb4w6Fi67YAgg XPpLPLHcfHivipImhf+sYqHqbttHBhC73qLpueFaghtInlm3Y89cb9L6FqmxJ4Osph Ky3qC5pOev4Tw== From: cel@kernel.org To: Hugh Dickins , Christian Brauner , Al Viro Cc: , , yukuai3@huawei.com, yangerkun@huaweicloud.com, Chuck Lever Subject: [PATCH v6 0/5] Improve simple directory offset wrap behavior Date: Fri, 20 Dec 2024 10:33:09 -0500 Message-ID: <20241220153314.5237-1-cel@kernel.org> X-Mailer: git-send-email 2.47.0 Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Chuck Lever The purpose of this series is to construct a set of upstream fixes that can be backported to v6.6 to address CVE-2024-46701. Changes since v5: - Improve error flow in simple_offset_add() This series (against v6.13-rc3) 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 Revert "libfs: Add simple_offset_empty()" Revert "libfs: fix infinite directory reads for offset dir" libfs: Replace simple_offset end-of-directory detection libfs: Use d_children list to iterate simple_offset directories fs/libfs.c | 163 ++++++++++++++++++++++----------------------- include/linux/fs.h | 1 - mm/shmem.c | 4 +- 3 files changed, 80 insertions(+), 88 deletions(-)