bcachefs: add missing bounds check in __bch2_bkey_val_invalid()

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

diff --git a/fs/bcachefs/bkey_methods.c b/fs/bcachefs/bkey_methods.c
index 5e52684764eb14de4d8433abd5954a829648440b..e4481e4d5f38f9c8e41d157c80da6a6f5d324a7c 100644 (file)
--- a/fs/bcachefs/bkey_methods.c
+++ b/fs/bcachefs/bkey_methods.c
@@ -175,7 +175,10 @@ int __bch2_bkey_invalid(struct bch_fs *c, struct bkey_s_c k,
                         !(bch2_key_types_allowed[type] & BIT_ULL(k.k->type)), c, err,
                         bkey_invalid_type_for_btree,
                         "invalid key type for btree %s (%s)",
-                        bch2_btree_node_type_str(type), bch2_bkey_types[k.k->type]);
+                        bch2_btree_node_type_str(type),
+                        k.k->type < KEY_TYPE_MAX
+                        ? bch2_bkey_types[k.k->type]
+                        : "(unknown)");
 
        if (btree_node_type_is_extents(type) && !bkey_whiteout(k.k)) {
                bkey_fsck_err_on(k.k->size == 0, c, err,