From: Daniel Micay <danielmicay@gmail.com>
To: Kees Cook <keescook@chromium.org>, Al Viro <viro@zeniv.linux.org.uk>
Cc: "Russell King - ARM Linux" <linux@armlinux.org.uk>,
"Linus Torvalds" <torvalds@linux-foundation.org>,
"Mark Rutland" <mark.rutland@arm.com>,
"Kernel Hardening" <kernel-hardening@lists.openwall.com>,
"Greg KH" <greg@kroah.com>,
"Heiko Carstens" <heiko.carstens@de.ibm.com>,
LKML <linux-kernel@vger.kernel.org>,
"David Howells" <dhowells@redhat.com>,
"Dave Hansen" <dave.hansen@intel.com>,
"H . Peter Anvin" <hpa@zytor.com>,
"Ingo Molnar" <mingo@kernel.org>,
"Pavel Tikhomirov" <ptikhomirov@virtuozzo.com>,
linux-s390 <linux-s390@vger.kernel.org>,
"the arch/x86 maintainers" <x86@kernel.org>,
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"Catalin Marinas" <catalin.marinas@arm.com>,
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"Rik van Riel" <riel@redhat.com>,
"Peter Zijlstra" <a.p.zijlstra@chello.nl>,
"Arnd Bergmann" <arnd@arndb.de>,
"Brian Gerst" <brgerst@gmail.com>,
"Borislav Petkov" <bp@alien8.de>,
"Andy Lutomirski" <luto@kernel.org>,
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<linux-arm-kernel@lists.infradead.org>,
"Linux API" <linux-api@vger.kernel.org>,
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"James Morse" <james.morse@arm.com>,
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"Martin Schwidefsky" <schwidefsky@de.ibm.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
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"Thomas Garnier" <thgarnie@google.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>
Subject: Re: [kernel-hardening] Re: [PATCH v9 1/4] syscalls: Verify address limit before returning to user-mode
Date: Fri, 12 May 2017 17:23:56 -0400 [thread overview]
Message-ID: <1494624236.4521.4.camel@gmail.com> (raw)
In-Reply-To: <CAGXu5jJu=VTqp2tzkPB4RAVxdGC+_SSQwrUwdzWpu24AA-zEcg@mail.gmail.com>
> overflow into adjacent allocations (fixed by VMAP_STACK).
99% fixed, but it's possible to skip over the guard page without
-fstack-check enabled (plus some edge cases need to be fixed in GCC),
unless VLAs were forbidden in addition to the existing large frame size
warning.
I'm not sure about in-tree code, but Qualcomm had some of these
improperly bounded VLA vulnerabilities in their MSM kernel...
next prev parent reply other threads:[~2017-05-12 21:24 UTC|newest]
Thread overview: 87+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-28 15:32 [PATCH v9 1/4] syscalls: Verify address limit before returning to user-mode Thomas Garnier
2017-04-28 15:32 ` [PATCH v9 2/4] x86/syscalls: Optimize address limit check Thomas Garnier
2017-04-28 15:32 ` [PATCH v9 3/4] arm/syscalls: " Thomas Garnier
2017-04-28 15:32 ` [PATCH v9 4/4] arm64/syscalls: " Thomas Garnier
2017-05-05 22:18 ` [PATCH v9 1/4] syscalls: Verify address limit before returning to user-mode Thomas Garnier
2017-05-08 7:33 ` Ingo Molnar
2017-05-08 7:52 ` Ingo Molnar
2017-05-08 15:22 ` [kernel-hardening] " Daniel Micay
2017-05-08 15:26 ` Kees Cook
2017-05-08 19:51 ` Thomas Garnier
2017-05-09 6:56 ` Ingo Molnar
2017-05-09 11:10 ` Greg KH
2017-05-09 14:29 ` Thomas Garnier
2017-05-11 23:17 ` Thomas Garnier
2017-05-11 23:44 ` Linus Torvalds
2017-05-12 5:28 ` Martin Schwidefsky
2017-05-12 5:34 ` Kees Cook
2017-05-12 5:54 ` Martin Schwidefsky
2017-05-12 19:01 ` Kees Cook
2017-05-12 19:08 ` Russell King - ARM Linux
2017-05-12 19:08 ` Linus Torvalds
2017-05-12 19:30 ` Kees Cook
2017-05-12 20:21 ` Russell King - ARM Linux
2017-05-12 20:30 ` Peter Zijlstra
2017-05-12 20:45 ` Russell King - ARM Linux
2017-05-12 21:00 ` Kees Cook
2017-05-12 21:04 ` Kees Cook
2017-05-13 7:21 ` Christoph Hellwig
2017-05-12 21:06 ` Al Viro
2017-05-12 21:16 ` Daniel Micay
2017-05-12 21:17 ` Kees Cook
2017-05-12 21:23 ` Daniel Micay [this message]
2017-05-12 21:41 ` Al Viro
2017-05-12 21:47 ` Rik van Riel
2017-05-12 22:57 ` Al Viro
2017-05-12 21:50 ` Kees Cook
2017-05-12 6:57 ` Ingo Molnar
2017-05-12 6:13 ` Andy Lutomirski
2017-05-12 6:58 ` Ingo Molnar
2017-05-12 17:05 ` Thomas Garnier
2017-05-09 16:30 ` Kees Cook
2017-05-08 12:46 ` Greg KH
2017-05-09 6:45 ` Ingo Molnar
2017-05-09 8:56 ` Christoph Hellwig
2017-05-09 13:00 ` Andy Lutomirski
2017-05-09 13:02 ` Christoph Hellwig
2017-05-09 16:03 ` Christoph Hellwig
2017-05-09 16:50 ` Kees Cook
2017-05-09 22:52 ` Andy Lutomirski
2017-05-09 23:31 ` Kees Cook
2017-05-10 1:59 ` Andy Lutomirski
2017-05-10 7:15 ` Christoph Hellwig
2017-05-11 11:22 ` Borislav Petkov
2017-05-10 6:46 ` Christoph Hellwig
2017-05-10 2:11 ` Al Viro
2017-05-10 2:45 ` Al Viro
2017-05-10 3:12 ` Al Viro
2017-05-10 3:21 ` Al Viro
2017-05-10 3:39 ` Al Viro
2017-05-10 6:54 ` Christoph Hellwig
2017-05-10 6:53 ` Christoph Hellwig
2017-05-10 7:27 ` Al Viro
2017-05-10 7:35 ` Christoph Hellwig
2017-05-10 6:49 ` Christoph Hellwig
2017-05-10 7:28 ` Arnd Bergmann
2017-05-10 7:35 ` Christoph Hellwig
2017-05-09 16:05 ` Brian Gerst
2017-05-10 7:37 ` Arnd Bergmann
2017-05-10 8:08 ` Al Viro
2017-05-10 8:14 ` Christoph Hellwig
2017-05-11 0:18 ` Andy Lutomirski
2017-05-12 7:00 ` Ingo Molnar
2017-05-12 7:15 ` Al Viro
2017-05-12 7:35 ` Christoph Hellwig
2017-05-12 7:43 ` Arnd Bergmann
2017-05-12 8:11 ` Christoph Hellwig
2017-05-12 8:16 ` Al Viro
2017-05-12 8:11 ` Al Viro
2017-05-12 8:20 ` Arnd Bergmann
2017-05-12 23:20 ` Andy Lutomirski
2017-05-08 13:09 ` Kees Cook
2017-05-08 14:02 ` Ingo Molnar
2017-05-08 14:06 ` Jann Horn
2017-05-08 20:48 ` Al Viro
2017-05-12 23:15 ` Andy Lutomirski
2017-05-08 15:24 ` Kees Cook
2017-05-09 6:34 ` Ingo Molnar
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