From: Thomas Gleixner <tglx@linutronix.de>
To: Ingo Molnar <mingo@kernel.org>
Cc: Andy Lutomirski <luto@amacapital.net>,
Kees Cook <keescook@chromium.org>,
Dmitry Vyukov <dvyukov@google.com>,
Andrey Ryabinin <ryabinin.a.a@gmail.com>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Andy Lutomirski <luto@kernel.org>, Borislav Petkov <bp@alien8.de>,
Denys Vlasenko <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>,
Sasha Levin <sasha.levin@oracle.com>,
Andi Kleen <ak@linux.intel.com>,
kasan-dev <kasan-dev@googlegroups.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Andrew Morton <akpm@linux-foundation.org>,
Al Viro <viro@zeniv.linux.org.uk>
Subject: Re: [PATCH] fs/proc: Don't expose absolute kernel addresses via wchan
Date: Wed, 30 Sep 2015 09:35:29 +0200 (CEST) [thread overview]
Message-ID: <alpine.DEB.2.11.1509300934470.4500@nanos> (raw)
In-Reply-To: <20150930071537.GA19048@gmail.com>
On Wed, 30 Sep 2015, Ingo Molnar wrote:
> diff --git a/fs/proc/array.c b/fs/proc/array.c
> index f60f0121e331..99082730b2ac 100644
> --- a/fs/proc/array.c
> +++ b/fs/proc/array.c
> @@ -507,7 +507,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns,
> seq_put_decimal_ull(m, ' ', task->blocked.sig[0] & 0x7fffffffUL);
> seq_put_decimal_ull(m, ' ', sigign.sig[0] & 0x7fffffffUL);
> seq_put_decimal_ull(m, ' ', sigcatch.sig[0] & 0x7fffffffUL);
> - seq_put_decimal_ull(m, ' ', wchan);
> + seq_puts(m, " 0"); /* Used to be numeric wchan - replaced by /proc/PID/wchan */
That should get rid of all wchan usage in do_task_stat()
Thanks,
tglx
next prev parent reply other threads:[~2015-09-30 7:36 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
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 [this message]
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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