[merged mm-stable] io_uring-use-mempool-kasan-hook.patch removed from -mm tree

[merged mm-stable] io_uring-use-mempool-kasan-hook.patch removed from -mm tree

[Andrew Morton]

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@google.com>
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@google.com
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Cc: Alexander Lobakin <alobakin@pm.me>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Breno Leitao <leitao@debian.org>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Evgenii Stepanov <eugenis@google.com>
Cc: Marco Elver <elver@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 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@google.com are

kasan-stop-leaking-stack-trace-handles.patch