The quilt patch titled
Subject: io_uring: use mempool KASAN hook
has been removed from the -mm tree. Its filename was
io_uring-use-mempool-kasan-hook.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: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Subject: io_uring: use mempool KASAN hook
Date: Tue, 19 Dec 2023 23:29:05 +0100
Use the proper kasan_mempool_unpoison_object hook for unpoisoning cached
objects.
A future change might also update io_uring to check the return value of
kasan_mempool_poison_object to prevent double-free and invalid-free bugs.
This proves to be non-trivial with the current way io_uring caches
objects, so this is left out-of-scope of this series.
Link: https://lkml.kernel.org/r/eca18d6cbf676ed784f1a1f209c386808a8087c5.1703024586.git.andreyknvl@xxxxxxxxxx
Signed-off-by: Andrey Konovalov <andreyknvl@xxxxxxxxxx>
Cc: Alexander Lobakin <alobakin@xxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Cc: Breno Leitao <leitao@xxxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Evgenii Stepanov <eugenis@xxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
io_uring/alloc_cache.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/io_uring/alloc_cache.h~io_uring-use-mempool-kasan-hook
+++ a/io_uring/alloc_cache.h
@@ -33,7 +33,7 @@ static inline struct io_cache_entry *io_
struct io_cache_entry *entry;
entry = container_of(cache->list.next, struct io_cache_entry, node);
- kasan_unpoison_range(entry, cache->elem_size);
+ kasan_mempool_unpoison_object(entry, cache->elem_size);
cache->list.next = cache->list.next->next;
cache->nr_cached--;
return entry;
_
Patches currently in -mm which might be from andreyknvl@xxxxxxxxxx are
kasan-stop-leaking-stack-trace-handles.patch
