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| author | Kent Overstreet <kent.overstreet@gmail.com> | 2020-06-26 13:56:21 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@gmail.com> | 2020-08-25 13:09:34 -0400 |
| commit | 07221d881946d55c3a5b4fd002b22cbd037cc02c (patch) | |
| tree | 39286aa33857e45538d325f1a687716acb538253 | |
| parent | a52f361d3011e573e4fbef4e3b88ca78e4071846 (diff) | |
bcachefs: Fix a null ptr deref in bch2_btree_iter_traverse_one()
We use sentinal values that aren't NULL to indicate there's a btree node
at a higher level; occasionally, this may result in
btree_iter_up_until_good_node() stopping at one of those sentinal
values.
Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
| -rw-r--r-- | fs/bcachefs/btree_iter.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/bcachefs/btree_iter.c b/fs/bcachefs/btree_iter.c index e98a6480969e..6fab76c3220c 100644 --- a/fs/bcachefs/btree_iter.c +++ b/fs/bcachefs/btree_iter.c @@ -1235,7 +1235,7 @@ static int btree_iter_traverse_one(struct btree_iter *iter) * * XXX correctly using BTREE_ITER_UPTODATE should make this unnecessary */ - if (btree_iter_node(iter, iter->level)) { + if (is_btree_node(iter, iter->level)) { BUG_ON(!btree_iter_pos_in_node(iter, iter->l[iter->level].b)); btree_iter_advance_to_pos(iter, &iter->l[iter->level], -1); |