From: Kees Cook <keescook@chromium.org>
To: Keith Packard <keithp@keithp.com>
Cc: linux-kernel@vger.kernel.org,
"Abbott Liu" <liuwenliang@huawei.com>,
"Alexander Sverdlin" <alexander.sverdlin@gmail.com>,
"Al Viro" <viro@zeniv.linux.org.uk>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Anshuman Khandual" <anshuman.khandual@arm.com>,
"Ard Biesheuvel" <ardb@kernel.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Bjorn Andersson" <bjorn.andersson@linaro.org>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Geert Uytterhoeven" <geert+renesas@glider.be>,
"Hartley Sweeten" <hsweeten@visionengravers.com>,
"Jens Axboe" <axboe@kernel.dk>, "Jian Cai" <jiancai@google.com>,
"Joe Perches" <joe@perches.com>,
"Linus Walleij" <linus.walleij@linaro.org>,
linux-arm-kernel@lists.infradead.org,
"Maninder Singh" <maninder1.s@samsung.com>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Marc Zyngier" <maz@kernel.org>,
"Masahiro Yamada" <masahiroy@kernel.org>,
"Mike Rapoport" <rppt@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"Nick Desaulniers" <ndesaulniers@gooogle.com>,
"Nicolas Pitre" <nico@fluxnic.net>,
"Peter Zijlstra" <peterz@infradead.org>,
"Russell King" <linux@armlinux.org.uk>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Valentin Schneider" <valentin.schneider@arm.com>,
"Vaneet Narang" <v.narang@samsung.com>,
"Wolfram Sang (Renesas)" <wsa+renesas@sang-engineering.com>,
"YiFei Zhu" <yifeifz2@illinois.edu>,
"Keith Packard" <keithpac@amazon.com>,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH 0/2]: ARM: Enable THREAD_INFO_IN_TASK
Date: Thu, 2 Sep 2021 09:07:42 -0700 [thread overview]
Message-ID: <202109020904.976207C@keescook> (raw)
In-Reply-To: <20210902155429.3987201-1-keithp@keithp.com>
On Thu, Sep 02, 2021 at 08:54:26AM -0700, Keith Packard wrote:
> Placing thread_info in the kernel stack leaves it vulnerable to stack
> overflow attacks. This short series addresses that by using the
> existing THREAD_INFO_IN_TASK infrastructure.
Very cool! Thanks for working on this. If you want, you can refer to the
KSPP bug for this too:
https://github.com/KSPP/linux/issues/1
(Anyone want to do MIPS?)
-Kees
--
Kees Cook
WARNING: multiple messages have this Message-ID (diff)
From: Kees Cook <keescook@chromium.org>
To: Keith Packard <keithp@keithp.com>
Cc: linux-kernel@vger.kernel.org,
"Abbott Liu" <liuwenliang@huawei.com>,
"Alexander Sverdlin" <alexander.sverdlin@gmail.com>,
"Al Viro" <viro@zeniv.linux.org.uk>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Anshuman Khandual" <anshuman.khandual@arm.com>,
"Ard Biesheuvel" <ardb@kernel.org>,
"Arnd Bergmann" <arnd@arndb.de>,
"Bjorn Andersson" <bjorn.andersson@linaro.org>,
"Florian Fainelli" <f.fainelli@gmail.com>,
"Geert Uytterhoeven" <geert+renesas@glider.be>,
"Hartley Sweeten" <hsweeten@visionengravers.com>,
"Jens Axboe" <axboe@kernel.dk>, "Jian Cai" <jiancai@google.com>,
"Joe Perches" <joe@perches.com>,
"Linus Walleij" <linus.walleij@linaro.org>,
linux-arm-kernel@lists.infradead.org,
"Maninder Singh" <maninder1.s@samsung.com>,
"Manivannan Sadhasivam" <mani@kernel.org>,
"Marc Zyngier" <maz@kernel.org>,
"Masahiro Yamada" <masahiroy@kernel.org>,
"Mike Rapoport" <rppt@kernel.org>,
"Nick Desaulniers" <ndesaulniers@google.com>,
"Nick Desaulniers" <ndesaulniers@gooogle.com>,
"Nicolas Pitre" <nico@fluxnic.net>,
"Peter Zijlstra" <peterz@infradead.org>,
"Russell King" <linux@armlinux.org.uk>,
"Thomas Gleixner" <tglx@linutronix.de>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Valentin Schneider" <valentin.schneider@arm.com>,
"Vaneet Narang" <v.narang@samsung.com>,
"Wolfram Sang (Renesas)" <wsa+renesas@sang-engineering.com>,
"YiFei Zhu" <yifeifz2@illinois.edu>,
"Keith Packard" <keithpac@amazon.com>,
linux-hardening@vger.kernel.org
Subject: Re: [PATCH 0/2]: ARM: Enable THREAD_INFO_IN_TASK
Date: Thu, 2 Sep 2021 09:07:42 -0700 [thread overview]
Message-ID: <202109020904.976207C@keescook> (raw)
In-Reply-To: <20210902155429.3987201-1-keithp@keithp.com>
On Thu, Sep 02, 2021 at 08:54:26AM -0700, Keith Packard wrote:
> Placing thread_info in the kernel stack leaves it vulnerable to stack
> overflow attacks. This short series addresses that by using the
> existing THREAD_INFO_IN_TASK infrastructure.
Very cool! Thanks for working on this. If you want, you can refer to the
KSPP bug for this too:
https://github.com/KSPP/linux/issues/1
(Anyone want to do MIPS?)
-Kees
--
Kees Cook
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-09-02 16:25 UTC|newest]
Thread overview: 72+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-02 15:54 [PATCH 0/2]: ARM: Enable THREAD_INFO_IN_TASK Keith Packard
2021-09-02 15:54 ` Keith Packard
2021-09-02 15:54 ` [PATCH 1/2] ARM: Add per-cpu variable holding cpu number Keith Packard
2021-09-02 15:54 ` Keith Packard
2021-09-02 15:54 ` [PATCH 2/2] ARM: Move thread_info into task_struct Keith Packard
2021-09-02 15:54 ` Keith Packard
2021-09-02 16:07 ` Kees Cook [this message]
2021-09-02 16:07 ` [PATCH 0/2]: ARM: Enable THREAD_INFO_IN_TASK Kees Cook
2021-09-02 16:18 ` Ard Biesheuvel
2021-09-02 16:18 ` Ard Biesheuvel
2021-09-02 17:37 ` Kees Cook
2021-09-02 17:37 ` Kees Cook
2021-09-02 16:54 ` Russell King (Oracle)
2021-09-02 16:54 ` Russell King (Oracle)
2021-09-02 16:53 ` Russell King (Oracle)
2021-09-02 16:53 ` Russell King (Oracle)
2021-09-02 17:35 ` Kees Cook
2021-09-02 17:35 ` Kees Cook
2021-09-02 17:58 ` Keith Packard
2021-09-02 17:58 ` Keith Packard
2021-09-04 6:09 ` [PATCH 0/2] ARM: support THREAD_INFO_IN_TASK (v7 only) (v2) Keith Packard
2021-09-04 6:09 ` Keith Packard
2021-09-04 6:09 ` [PATCH 1/3] ARM: Pass cpu number to secondary_start_kernel Keith Packard
2021-09-04 6:09 ` Keith Packard
2021-09-05 20:25 ` Ard Biesheuvel
2021-09-05 20:25 ` Ard Biesheuvel
2021-09-04 6:09 ` [PATCH 2/3] ARM: Move thread_info into task_struct (v7 only) Keith Packard
2021-09-04 6:09 ` Keith Packard
2021-09-05 20:56 ` Ard Biesheuvel
2021-09-05 20:56 ` Ard Biesheuvel
2021-09-06 6:14 ` Keith Packard
2021-09-06 6:14 ` Keith Packard
2021-09-06 7:49 ` Ard Biesheuvel
2021-09-06 7:49 ` Ard Biesheuvel
2021-09-07 15:24 ` Keith Packard
2021-09-07 15:24 ` Keith Packard
2021-09-07 16:05 ` Ard Biesheuvel
2021-09-07 16:05 ` Ard Biesheuvel
2021-09-07 22:17 ` Keith Packard
2021-09-07 22:17 ` Keith Packard
2021-09-06 6:20 ` Keith Packard
2021-09-06 6:20 ` Keith Packard
2021-09-04 6:09 ` [PATCH 3/3] ARM: Add per-cpu variable cpu_number " Keith Packard
2021-09-04 6:09 ` Keith Packard
2021-09-07 22:00 ` [PATCH 0/7] ARM: support THREAD_INFO_IN_TASK (v3) Keith Packard
2021-09-07 22:00 ` Keith Packard
2021-09-07 22:00 ` [PATCH 1/7] ARM: Pass cpu number to secondary_start_kernel Keith Packard
2021-09-07 22:00 ` Keith Packard
2021-09-07 22:00 ` [PATCH 2/7] ARM: Pass task " Keith Packard
2021-09-07 22:00 ` Keith Packard
2021-09-07 22:00 ` [PATCH 3/7] ARM: Use smp_processor_id() in vfp_pm_suspend instead of ti->cpu Keith Packard
2021-09-07 22:00 ` Keith Packard
2021-09-07 22:00 ` [PATCH 4/7] ARM: Use hack from powerpc to get current cpu number Keith Packard
2021-09-07 22:00 ` Keith Packard
2021-09-08 7:45 ` Ard Biesheuvel
2021-09-08 7:45 ` Ard Biesheuvel
2021-09-07 22:00 ` [PATCH 5/7] ARM: Stop using TPIDRPRW to hold per_cpu_offset Keith Packard
2021-09-07 22:00 ` Keith Packard
2021-09-09 13:54 ` Ard Biesheuvel
2021-09-09 13:54 ` Ard Biesheuvel
2021-09-07 22:00 ` [PATCH 6/7] ARM: Use TPIDRPRW for current Keith Packard
2021-09-07 22:00 ` Keith Packard
2021-09-09 13:56 ` Ard Biesheuvel
2021-09-09 13:56 ` Ard Biesheuvel
2021-09-07 22:00 ` [PATCH 7/7] ARM: Move thread_info into task_struct (v7 only) Keith Packard
2021-09-07 22:00 ` Keith Packard
2021-09-08 7:01 ` [PATCH 0/7] ARM: support THREAD_INFO_IN_TASK (v3) Krzysztof Kozlowski
2021-09-08 7:01 ` Krzysztof Kozlowski
2021-09-08 7:47 ` Ard Biesheuvel
2021-09-08 7:47 ` Ard Biesheuvel
2021-09-08 7:50 ` Geert Uytterhoeven
2021-09-08 7:50 ` Geert Uytterhoeven
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