From: Qian Cai <cai@lca.pw>
To: Andrey Konovalov <andreyknvl@google.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
kasan-dev <kasan-dev@googlegroups.com>,
Linux-MM <linux-mm@kvack.org>,
Alexander Potapenko <glider@google.com>,
Dmitry Vyukov <dvyukov@google.com>,
Andrey Ryabinin <aryabinin@virtuozzo.com>,
Linux ARM <linux-arm-kernel@lists.infradead.org>
Subject: Re: CONFIG_KASAN_SW_TAGS=y not play well with kmemleak
Date: Fri, 8 Feb 2019 21:17:13 -0500 [thread overview]
Message-ID: <cb64bf1f-9291-23f6-75bc-baae844d057c@lca.pw> (raw)
In-Reply-To: <CAAeHK+wsULxYXnGJnQXx9HjZMiU-5jb5ZKC+TuGQihc9L386Xg@mail.gmail.com>
On 2/8/19 12:15 PM, Andrey Konovalov wrote:
> Yeah, the issue is that kmemleak performs a bunch of pointer
> comparisons that break when pointers are tagged. Try the attached
> patch, it should fix the issue. I don't like the way this patch does
> it though, I'll see if I can come up with something better.
The patch works great!
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next prev parent reply other threads:[~2019-02-09 2:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-07 4:04 CONFIG_KASAN_SW_TAGS=y NULL pointer dereference at freelist_dereference() Qian Cai
2019-02-07 12:58 ` Andrey Konovalov
2019-02-07 13:27 ` Qian Cai
2019-02-07 15:34 ` Andrey Konovalov
2019-02-08 0:30 ` Qian Cai
[not found] ` <59db8d6b-4224-2ec9-09de-909c4338b67a@lca.pw>
2019-02-08 17:15 ` CONFIG_KASAN_SW_TAGS=y not play well with kmemleak Andrey Konovalov
2019-02-09 2:17 ` Qian Cai [this message]
2019-02-11 12:15 ` Catalin Marinas
2019-02-11 18:52 ` Andrey Konovalov
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