From: Borislav Petkov <bp@alien8.de>
To: Dmitry Vyukov <dvyukov@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
luto@kernel.org, dvlasenk@redhat.com,
"x86@kernel.org" <x86@kernel.org>,
LKML <linux-kernel@vger.kernel.org>,
Kostya Serebryany <kcc@google.com>,
Alexander Potapenko <glider@google.com>,
Andrey Konovalov <andreyknvl@google.com>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Sasha Levin <sasha.levin@oracle.com>,
Andi Kleen <ak@linux.intel.com>,
kasan-dev <kasan-dev@googlegroups.com>
Subject: Re: [PATCH] arch/x86: fix out-of-bounds in get_wchan()
Date: Mon, 28 Sep 2015 12:51:22 +0200 [thread overview]
Message-ID: <20150928105122.GD3556@pd.tnic> (raw)
In-Reply-To: <CACT4Y+ZszHhFr7VTShCGMigOssihC92x1Z87=AxVBhEMmojFdw@mail.gmail.com>
On Mon, Sep 28, 2015 at 12:33:09PM +0200, Dmitry Vyukov wrote:
> I have not checked, but I would expect that it is caller's
> responsibility.
Looks like it: proc, for example, does get_pid_task()->get_task_struct().
> There is generally no way to magically resurrect a
> pointer to a freed object passed in.
Right.
--
Regards/Gruss,
Boris.
ECO tip #101: Trim your mails when you reply.
next prev parent reply other threads:[~2015-09-28 10:51 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-28 9:00 [PATCH] arch/x86: fix out-of-bounds in get_wchan() Dmitry Vyukov
2015-09-28 9:37 ` Borislav Petkov
2015-09-28 9:49 ` Dmitry Vyukov
2015-09-28 10:23 ` Borislav Petkov
2015-09-28 10:33 ` Dmitry Vyukov
2015-09-28 10:51 ` Borislav Petkov [this message]
2015-09-28 9:54 ` Dmitry Vyukov
2015-09-28 10:32 ` Borislav Petkov
2015-09-28 15:40 ` Andrey Ryabinin
2015-09-28 16:08 ` Dmitry Vyukov
2015-09-28 16:32 ` Thomas Gleixner
2015-09-29 18:15 ` Andy Lutomirski
2015-09-29 18:30 ` Andy Lutomirski
2015-09-29 18:41 ` Borislav Petkov
2015-09-30 7:15 ` [PATCH] fs/proc: Don't expose absolute kernel addresses via wchan Ingo Molnar
2015-09-30 7:35 ` Thomas Gleixner
2015-09-30 13:59 ` [PATCH v2] " Ingo Molnar
2015-09-30 20:36 ` Thomas Gleixner
2015-09-30 21:21 ` Kees Cook
2015-09-30 21:38 ` Thomas Gleixner
2015-10-01 7:57 ` [PATCH v3] fs/proc, core/debug: " Ingo Molnar
2015-10-01 8:57 ` Andrey Ryabinin
2015-10-01 9:29 ` Ingo Molnar
2015-10-01 10:16 ` Andrey Ryabinin
2015-10-01 10:39 ` Ingo Molnar
2015-10-01 10:47 ` Andrey Ryabinin
2015-10-01 10:57 ` [PATCH v5] " Ingo Molnar
2015-10-01 9:37 ` [PATCH v4] " Ingo Molnar
2015-10-01 12:49 ` [tip:core/debug] fs/proc, core/debug: Don' t " tip-bot for Ingo Molnar
2015-09-30 8:07 ` [PATCH] arch/x86: fix out-of-bounds in get_wchan() Thomas Gleixner
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