From: Andrey Ryabinin <aryabinin@virtuozzo.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: <linux-kernel@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Sasha Levin <sasha.levin@oracle.com>,
Randy Dunlap <rdunlap@infradead.org>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Jonathan Corbet <corbet@lwn.net>, Michal Marek <mmarek@suse.cz>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Yury Gribov <y.gribov@samsung.com>,
Dmitry Vyukov <dvyukov@google.com>,
Konstantin Khlebnikov <koct9i@gmail.com>,
Kostya Serebryany <kcc@google.com>, <x86@kernel.org>,
<linux-doc@vger.kernel.org>, <linux-kbuild@vger.kernel.org>
Subject: Re: [PATCH v4 0/3] UBSAN: run-time undefined behavior sanity checker
Date: Mon, 7 Dec 2015 19:48:32 +0300 [thread overview]
Message-ID: <5665B860.9040404@virtuozzo.com> (raw)
In-Reply-To: <20151204163747.0bb51d61832ac75bfc73ce0c@linux-foundation.org>
On 12/05/2015 03:37 AM, Andrew Morton wrote:
> On Thu, 3 Dec 2015 18:50:04 +0300 Andrey Ryabinin <aryabinin@virtuozzo.com> wrote:
>
>> UBSAN is run-time undefined behaviour checker. It uses compile-time
>> instrumentation to catch undefined behavior (UB). Compiler inserts code
>> that perform certain kinds of checks before operations that could cause UB.
>> If check fails (i.e. UB detected) __ubsan_handle_* function called to print error message.
>
> What I'd like to see in this changelog is a description of any kernel
> issues which this checker has already identified: what were they and
> what was their potential impact at runtime.
>
> This info will help us to understand the value of the proposed feature.
>
Sure, I'll come back soon with a list of found bugs.
> Thanks.
>
WARNING: multiple messages have this Message-ID (diff)
From: Andrey Ryabinin <aryabinin@virtuozzo.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-kernel@vger.kernel.org,
Peter Zijlstra <peterz@infradead.org>,
Sasha Levin <sasha.levin@oracle.com>,
Randy Dunlap <rdunlap@infradead.org>,
Rasmus Villemoes <linux@rasmusvillemoes.dk>,
Jonathan Corbet <corbet@lwn.net>, Michal Marek <mmarek@suse.cz>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, "H. Peter Anvin" <hpa@zytor.com>,
Yury Gribov <y.gribov@samsung.com>,
Dmitry Vyukov <dvyukov@google.com>,
Konstantin Khlebnikov <koct9i@gmail.com>,
Kostya Serebryany <kcc@google.com>,
x86@kernel.org, linux-doc@vger.kernel.org,
linux-kbuild@vger.kernel.org
Subject: Re: [PATCH v4 0/3] UBSAN: run-time undefined behavior sanity checker
Date: Mon, 7 Dec 2015 19:48:32 +0300 [thread overview]
Message-ID: <5665B860.9040404@virtuozzo.com> (raw)
In-Reply-To: <20151204163747.0bb51d61832ac75bfc73ce0c@linux-foundation.org>
On 12/05/2015 03:37 AM, Andrew Morton wrote:
> On Thu, 3 Dec 2015 18:50:04 +0300 Andrey Ryabinin <aryabinin@virtuozzo.com> wrote:
>
>> UBSAN is run-time undefined behaviour checker. It uses compile-time
>> instrumentation to catch undefined behavior (UB). Compiler inserts code
>> that perform certain kinds of checks before operations that could cause UB.
>> If check fails (i.e. UB detected) __ubsan_handle_* function called to print error message.
>
> What I'd like to see in this changelog is a description of any kernel
> issues which this checker has already identified: what were they and
> what was their potential impact at runtime.
>
> This info will help us to understand the value of the proposed feature.
>
Sure, I'll come back soon with a list of found bugs.
> Thanks.
>
next prev parent reply other threads:[~2015-12-07 16:48 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-03 15:50 [PATCH v4 0/3] UBSAN: run-time undefined behavior sanity checker Andrey Ryabinin
2015-12-03 15:50 ` Andrey Ryabinin
2015-12-03 15:50 ` [PATCH v4 1/3] kernel: printk: specify alignment for struct printk_log Andrey Ryabinin
2015-12-03 15:50 ` Andrey Ryabinin
2015-12-03 15:50 ` [PATCH v4 2/3] mac80211: Prevent build failure with CONFIG_UBSAN=y Andrey Ryabinin
2015-12-03 15:50 ` Andrey Ryabinin
2015-12-03 17:05 ` Johannes Berg
2015-12-03 19:18 ` Andrey Ryabinin
2015-12-03 15:50 ` [PATCH v4 3/3] UBSAN: run-time undefined behavior sanity checker Andrey Ryabinin
2015-12-03 15:50 ` Andrey Ryabinin
2015-12-04 14:27 ` kbuild test robot
2015-12-04 14:27 ` kbuild test robot
2015-12-05 0:40 ` Andrew Morton
2015-12-08 23:59 ` Andrew Morton
2015-12-08 23:59 ` Andrew Morton
2015-12-10 1:15 ` Daniel Axtens
2015-12-05 0:37 ` [PATCH v4 0/3] " Andrew Morton
2015-12-05 0:37 ` Andrew Morton
2015-12-07 16:48 ` Andrey Ryabinin [this message]
2015-12-07 16:48 ` Andrey Ryabinin
2015-12-10 15:48 ` Andrey Ryabinin
2015-12-10 15:48 ` Andrey Ryabinin
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