Filipe Manana 6ba3479f9e btrfs: fix inode list leak during backref walking at resolve_indirect_refs()
[ Upstream commit 5614dc3a47e3310fbc77ea3b67eaadd1c6417bf1 ]

During backref walking, at resolve_indirect_refs(), if we get an error
we jump to the 'out' label and call ulist_free() on the 'parents' ulist,
which frees all the elements in the ulist - however that does not free
any inode lists that may be attached to elements, through the 'aux' field
of a ulist node, so we end up leaking lists if we have any attached to
the unodes.

Fix this by calling free_leaf_list() instead of ulist_free() when we exit
from resolve_indirect_refs(). The static function free_leaf_list() is
moved up for this to be possible and it's slightly simplified by removing
unnecessary code.

Fixes: 3301958b7c1d ("Btrfs: add inodes before dropping the extent lock in find_all_leafs")
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-10 18:15:29 +01:00
..
2022-08-17 14:24:07 +02:00
2021-08-19 09:02:55 +09:00
2022-07-02 16:41:14 +02:00
2021-08-26 22:28:02 +02:00
2022-06-09 10:22:55 +02:00
2021-12-29 12:28:59 +01:00
2021-06-29 10:53:48 -07:00
2021-09-03 15:33:47 -07:00
2021-08-16 10:50:32 -06:00
2022-05-15 20:18:52 +02:00
2021-08-19 09:02:55 +09:00
2021-06-29 10:53:48 -07:00
2022-07-02 16:41:17 +02:00
2022-07-12 16:35:08 +02:00
2021-12-14 10:57:15 +01:00
2021-08-10 17:57:22 +02:00