From: Nikolay Borisov <nborisov@suse.com>
To: Josef Bacik <josef@toxicpanda.com>,
linux-btrfs@vger.kernel.org, kernel-team@fb.com
Subject: Re: [PATCH 09/13] btrfs: modify the new_root highest_objectid under a ref count
Date: Fri, 18 Dec 2020 13:18:52 +0200 [thread overview]
Message-ID: <d584d297-9a15-426e-e5be-39d7e58f3cb7@suse.com> (raw)
In-Reply-To: <db3b68c826ae28684100195170a913b13a23b567.1608135557.git.josef@toxicpanda.com>
On 16.12.20 г. 18:22 ч., Josef Bacik wrote:
> Qu pointed out a bug in one of my error handling patches, which made me
> notice that we modify the new_root->highest_objectid _after_ we've
> dropped the ref to the new_root. This could lead to a possible UAF, fix
> this by modifying the ->highest_objectid before we drop our reference to
> the new_root.
>
> Signed-off-by: Josef Bacik <josef@toxicpanda.com>
This patch must be dropped as per
https://github.com/kdave/btrfs-devel/commit/6044ce89a75a07a80f28f4bfeddeefc1b772366a
next prev parent reply other threads:[~2020-12-18 11:19 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-16 16:22 [PATCH 00/13] Serious fixes for different error paths Josef Bacik
2020-12-16 16:22 ` [PATCH 01/13] btrfs: don't get an EINTR during drop_snapshot for reloc Josef Bacik
2021-01-11 21:56 ` David Sterba
2020-12-16 16:22 ` [PATCH 02/13] btrfs: initialize test inodes location Josef Bacik
2020-12-18 10:30 ` Nikolay Borisov
2020-12-21 16:58 ` David Sterba
2020-12-16 16:22 ` [PATCH 03/13] btrfs: fix reloc root leak with 0 ref reloc roots on recovery Josef Bacik
2020-12-16 16:22 ` [PATCH 04/13] btrfs: splice remaining dirty_bg's onto the transaction dirty bg list Josef Bacik
2021-01-11 22:09 ` David Sterba
2020-12-16 16:22 ` [PATCH 05/13] btrfs: do not WARN_ON() if we can't find the reloc root Josef Bacik
2021-01-11 22:14 ` David Sterba
2020-12-16 16:22 ` [PATCH 06/13] btrfs: add ASSERT()'s for deleting backref cache nodes Josef Bacik
2021-01-11 22:18 ` David Sterba
2020-12-16 16:22 ` [PATCH 07/13] btrfs: do not double free backref nodes on error Josef Bacik
2020-12-16 16:22 ` [PATCH 08/13] btrfs: abort the transaction if we fail to inc ref in btrfs_copy_root Josef Bacik
2021-01-11 22:20 ` David Sterba
2020-12-16 16:22 ` [PATCH 09/13] btrfs: modify the new_root highest_objectid under a ref count Josef Bacik
2020-12-18 11:18 ` Nikolay Borisov [this message]
2020-12-16 16:22 ` [PATCH 10/13] btrfs: fix lockdep splat in btrfs_recover_relocation Josef Bacik
2020-12-16 16:22 ` [PATCH 11/13] btrfs: keep track of the root owner for relocation reads Josef Bacik
2021-01-11 22:23 ` David Sterba
2021-01-14 18:03 ` David Sterba
2020-12-16 16:22 ` [PATCH 12/13] btrfs: do not cleanup upper nodes in btrfs_backref_cleanup_node Josef Bacik
2020-12-16 16:22 ` [PATCH 13/13] btrfs: don't clear ret in btrfs_start_dirty_block_groups Josef Bacik
2021-01-08 16:44 ` [PATCH 00/13] Serious fixes for different error paths David Sterba
2021-01-14 18:20 ` David Sterba
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