From: ed@abdsec.com
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Dan Rosenberg <dan.j.rosenberg@gmail.com>,
Dave Jones <davej@redhat.com>, Kees Cook <keescook@chromium.org>,
Kernel Hardening <kernel-hardening@lists.openwall.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: [kernel-hardening] Re: [PATCH] KERNEL: resource: Fix bug on leakage in /proc/iomem file
Date: Wed, 06 Apr 2016 13:05:56 -0500 [thread overview]
Message-ID: <5e5e7c7ced7bede343530ed1447d7453@abdsec.com> (raw)
In-Reply-To: <CA+55aFykp_ifLG=GkdGEM2keZs1Kb=eYcjjLz1LQh78LVSZong@mail.gmail.com>
First, I wrote your attached patch, but then I thought zeroing other
/proc/iomem values would be better. So I changed it.
Most distros don't use KASLR, but they use kptr_restrict. Without KASLR,
kptr_restirct most likely useless. As you said these things should be
done long ago
Emrah Demir
WARNING: multiple messages have this Message-ID (diff)
From: ed@abdsec.com
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Dan Rosenberg <dan.j.rosenberg@gmail.com>,
Dave Jones <davej@redhat.com>, Kees Cook <keescook@chromium.org>,
Kernel Hardening <kernel-hardening@lists.openwall.com>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] KERNEL: resource: Fix bug on leakage in /proc/iomem file
Date: Wed, 06 Apr 2016 13:05:56 -0500 [thread overview]
Message-ID: <5e5e7c7ced7bede343530ed1447d7453@abdsec.com> (raw)
In-Reply-To: <CA+55aFykp_ifLG=GkdGEM2keZs1Kb=eYcjjLz1LQh78LVSZong@mail.gmail.com>
First, I wrote your attached patch, but then I thought zeroing other
/proc/iomem values would be better. So I changed it.
Most distros don't use KASLR, but they use kptr_restrict. Without KASLR,
kptr_restirct most likely useless. As you said these things should be
done long ago
Emrah Demir
next prev parent reply other threads:[~2016-04-06 18:05 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 13:03 [kernel-hardening] [PATCH] KERNEL: resource: Fix bug on leakage in /proc/iomem file Emrah Demir
2016-04-06 13:03 ` Emrah Demir
2016-04-06 15:20 ` [kernel-hardening] " Linus Torvalds
2016-04-06 15:20 ` Linus Torvalds
2016-04-06 17:54 ` [kernel-hardening] " Linus Torvalds
2016-04-06 17:54 ` Linus Torvalds
2016-04-06 18:05 ` ed [this message]
2016-04-06 18:05 ` ed
2016-04-06 18:21 ` [kernel-hardening] " Kees Cook
2016-04-06 18:21 ` Kees Cook
2016-04-06 18:31 ` [kernel-hardening] " Linus Torvalds
2016-04-06 18:31 ` Linus Torvalds
2016-04-06 18:37 ` [kernel-hardening] " Kees Cook
2016-04-06 18:37 ` Kees Cook
2016-04-06 18:43 ` [kernel-hardening] " Linus Torvalds
2016-04-06 18:43 ` Linus Torvalds
2016-04-06 18:53 ` [kernel-hardening] " Yves-Alexis Perez
2016-04-06 19:02 ` Linus Torvalds
2016-04-06 19:11 ` Yves-Alexis Perez
2016-04-06 19:19 ` Borislav Petkov
2016-04-06 20:49 ` Ingo Molnar
2016-04-06 19:23 ` Bjørn Mork
2016-04-06 19:23 ` Bjørn Mork
2016-04-06 18:52 ` [kernel-hardening] " Christian Kujau
2016-04-06 18:52 ` Christian Kujau
2016-04-06 18:53 ` [kernel-hardening] " Kees Cook
2016-04-06 18:53 ` Kees Cook
2016-04-06 21:19 ` [kernel-hardening] " Linus Torvalds
2016-04-06 21:19 ` Linus Torvalds
2016-04-06 21:27 ` [kernel-hardening] " Kees Cook
2016-04-06 21:27 ` Kees Cook
2016-04-06 21:32 ` [kernel-hardening] " Linus Torvalds
2016-04-06 21:32 ` Linus Torvalds
2016-04-14 4:27 ` [kernel-hardening] " Kees Cook
2016-04-14 4:27 ` Kees Cook
2016-04-14 7:39 ` [kernel-hardening] " Emrah Demir
2016-04-14 7:39 ` Emrah Demir
2016-04-06 18:03 ` [kernel-hardening] " Kees Cook
2016-04-06 18:03 ` Kees Cook
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