The quilt patch titled
Subject: maple_tree: fix potential rcu issue
has been removed from the -mm tree. Its filename was
maple_tree-fix-potential-rcu-issue.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: "Liam R. Howlett" <Liam.Howlett@xxxxxxxxxx>
Subject: maple_tree: fix potential rcu issue
Date: Fri, 20 Jan 2023 11:26:03 -0500
Ensure the node isn't dead after reading the node end.
Link: https://lkml.kernel.org/r/20230120162650.984577-3-Liam.Howlett@xxxxxxxxxx
Signed-off-by: Liam R. Howlett <Liam.Howlett@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
lib/maple_tree.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/maple_tree.c~maple_tree-fix-potential-rcu-issue
+++ a/lib/maple_tree.c
@@ -4655,13 +4655,13 @@ static inline void *mas_next_nentry(stru
pivots = ma_pivots(node, type);
slots = ma_slots(node, type);
mas->index = mas_safe_min(mas, pivots, mas->offset);
+ count = ma_data_end(node, type, pivots, mas->max);
if (ma_dead_node(node))
return NULL;
if (mas->index > max)
return NULL;
- count = ma_data_end(node, type, pivots, mas->max);
if (mas->offset > count)
return NULL;
_
Patches currently in -mm which might be from Liam.Howlett@xxxxxxxxxx are
