[merged mm-stable] mm-slub-let-kmsan-access-metadata.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
Subject: mm: slub: let KMSAN access metadata
has been removed from the -mm tree. Its filename was
mm-slub-let-kmsan-access-metadata.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: Ilya Leoshkevich <i...@linux.ibm.com>
Subject: mm: slub: let KMSAN access metadata
Date: Fri, 21 Jun 2024 13:35:01 +0200

Building the kernel with CONFIG_SLUB_DEBUG and CONFIG_KMSAN causes KMSAN
to complain about touching redzones in kfree().

Fix by extending the existing KASAN-related metadata_access_enable() and
metadata_access_disable() functions to KMSAN.

Link: https://lkml.kernel.org/r/20240621113706...@linux.ibm.com
Signed-off-by: Ilya Leoshkevich <i...@linux.ibm.com>
Acked-by: Vlastimil Babka <vba...@suse.cz>
Reviewed-by: Alexander Potapenko <gli...@google.com>
Cc: Alexander Gordeev <agor...@linux.ibm.com>
Cc: Christian Borntraeger <bornt...@linux.ibm.com>
Cc: Christoph Lameter <c...@linux.com>
Cc: David Rientjes <rien...@google.com>
Cc: Dmitry Vyukov <dvy...@google.com>
Cc: Heiko Carstens <h...@linux.ibm.com>
Cc: Hyeonggon Yoo <42.h...@gmail.com>
Cc: Joonsoo Kim <iamjoon...@lge.com>
Cc: <kasa...@googlegroups.com>
Cc: Marco Elver <el...@google.com>
Cc: Mark Rutland <mark.r...@arm.com>
Cc: Masami Hiramatsu (Google) <mhir...@kernel.org>
Cc: Pekka Enberg <pen...@kernel.org>
Cc: Roman Gushchin <roman.g...@linux.dev>
Cc: Steven Rostedt (Google) <ros...@goodmis.org>
Cc: Sven Schnelle <sv...@linux.ibm.com>
Cc: Vasily Gorbik <g...@linux.ibm.com>
Signed-off-by: Andrew Morton <ak...@linux-foundation.org>
---

mm/slub.c | 2 ++
1 file changed, 2 insertions(+)

--- a/mm/slub.c~mm-slub-let-kmsan-access-metadata
+++ a/mm/slub.c
@@ -829,10 +829,12 @@ static int disable_higher_order_debug;
static inline void metadata_access_enable(void)
{
kasan_disable_current();
+ kmsan_disable_current();
}

static inline void metadata_access_disable(void)
{
+ kmsan_enable_current();
kasan_enable_current();
}

_

Patches currently in -mm which might be from i...@linux.ibm.com are