diff options
| author | Kent Overstreet <kent.overstreet@gmail.com> | 2019-06-24 18:11:35 -0400 |
|---|---|---|
| committer | Kent Overstreet <kent.overstreet@linux.dev> | 2023-10-22 17:08:23 -0400 |
| commit | 2ded276b7e20084842225b47100f3391e00f540f (patch) | |
| tree | bdd3e886ab10b23188277f6bc1ce156917b28cf5 /fs/bcachefs | |
| parent | f707e3d8f41e77aff94941168ab30da2314a5984 (diff) | |
bcachefs: Fix array overrun with unknown btree roots
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'fs/bcachefs')
| -rw-r--r-- | fs/bcachefs/recovery.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/fs/bcachefs/recovery.c b/fs/bcachefs/recovery.c index 2b7133e376e3..e0df2c0a4fdf 100644 --- a/fs/bcachefs/recovery.c +++ b/fs/bcachefs/recovery.c @@ -379,7 +379,15 @@ static int journal_replay_entry_early(struct bch_fs *c, switch (entry->type) { case BCH_JSET_ENTRY_btree_root: { - struct btree_root *r = &c->btree_roots[entry->btree_id]; + struct btree_root *r; + + if (entry->btree_id >= BTREE_ID_NR) { + bch_err(c, "filesystem has unknown btree type %u", + entry->btree_id); + return -EINVAL; + } + + r = &c->btree_roots[entry->btree_id]; if (entry->u64s) { r->level = entry->level; |