From: Kent Overstreet <kent.overstreet@linux.dev>
Date: Wed, 17 Jul 2024 00:20:21 +0000 (-0400)
Subject: bcachefs: Fix integer overflow on trans->nr_updates
X-Git-Tag: v6.11-rc1~120^2~1
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f719cbe0c8b3b8a14b403b9e60fdb565fd829fe;p=thirdparty%2Flinux.git

bcachefs: Fix integer overflow on trans->nr_updates

We can't have more updates than paths, so btree_path_idx_t is the
correct type to use.

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

diff --git a/fs/bcachefs/btree_types.h b/fs/bcachefs/btree_types.h
index 79898f6877726..b256b2a20a4f8 100644
--- a/fs/bcachefs/btree_types.h
+++ b/fs/bcachefs/btree_types.h
@@ -477,8 +477,8 @@ struct btree_trans {
 	btree_path_idx_t	nr_sorted;
 	btree_path_idx_t	nr_paths;
 	btree_path_idx_t	nr_paths_max;
+	btree_path_idx_t	nr_updates;
 	u8			fn_idx;
-	u8			nr_updates;
 	u8			lock_must_abort;
 	bool			lock_may_not_fail:1;
 	bool			srcu_held:1;