From: Shinichiro Kawasaki <shinichiro.kawasaki@wdc.com>
To: Jann Horn <jannh@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Alexander Potapenko <glider@google.com>,
Andrey Konovalov <andreyknvl@gmail.com>,
Dmitry Vyukov <dvyukov@google.com>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Andrew Morton <akpm@linux-foundation.org>,
Christoph Lameter <cl@linux.com>,
Pekka Enberg <penberg@kernel.org>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Vlastimil Babka <vbabka@suse.cz>,
Roman Gushchin <roman.gushchin@linux.dev>,
Hyeonggon Yoo <42.hyeyoo@gmail.com>,
Marco Elver <elver@google.com>,
"kasan-dev@googlegroups.com" <kasan-dev@googlegroups.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-mm@kvack.org" <linux-mm@kvack.org>,
David Sterba <dsterba@suse.cz>,
"syzbot+263726e59eab6b442723@syzkaller.appspotmail.com"
<syzbot+263726e59eab6b442723@syzkaller.appspotmail.com>
Subject: Re: [PATCH v8 2/2] slub: Introduce CONFIG_SLUB_RCU_DEBUG
Date: Tue, 13 Aug 2024 23:59:26 +0000 [thread overview]
Message-ID: <5qdsfymdkyqhc57ww64mphrshgq4ioelbtg3ojwpicmyzwjydw@kgzio5qsmnng> (raw)
In-Reply-To: <CAG48ez2DUgxh3f4N=i60TfHBSTbh2HPMbA8DcBo2g7HSepnzzg@mail.gmail.com>
On Aug 13, 2024 / 16:35, Jann Horn wrote:
[...]
> In the version you tested
> (https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next-history.git/tree/mm/slub.c?h=next-20240808#n4550),
> I made a mistake and wrote "if (WARN_ON(is_kfence_address(rcu_head)))"
> instead of "if (WARN_ON(is_kfence_address(object)))". That issue was
> fixed in v6 of the series after syzbot and the Intel test bot ran into
> the same issue.
Ah, I overlooked that 'rcu_head' has changed to 'object'... I should have
checked the patch change history. Good to know that the WARN is already fixed.
Thank you for the clarification.
next prev parent reply other threads:[~2024-08-13 23:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-09 15:36 [PATCH v8 0/2] allow KASAN to detect UAF in SLAB_TYPESAFE_BY_RCU slabs Jann Horn
2024-08-09 15:36 ` [PATCH v8 1/2] kasan: catch invalid free before SLUB reinitializes the object Jann Horn
2024-08-09 15:36 ` [PATCH v8 2/2] slub: Introduce CONFIG_SLUB_RCU_DEBUG Jann Horn
2024-08-13 9:03 ` Shinichiro Kawasaki
2024-08-13 14:35 ` Jann Horn
2024-08-13 23:59 ` Shinichiro Kawasaki [this message]
2024-08-09 18:27 ` [PATCH v8 0/2] allow KASAN to detect UAF in SLAB_TYPESAFE_BY_RCU slabs David Sterba
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