From: Andrew Morton <akpm@linux-foundation.org>
To: Andrey Ryabinin <aryabinin@virtuozzo.com>
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: Fri, 4 Dec 2015 16:37:47 -0800 [thread overview]
Message-ID: <20151204163747.0bb51d61832ac75bfc73ce0c@linux-foundation.org> (raw)
In-Reply-To: <1449157807-20298-1-git-send-email-aryabinin@virtuozzo.com>
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.
Thanks.
next prev parent reply other threads:[~2015-12-05 0:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
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 ` [PATCH v4 2/3] mac80211: Prevent build failure with CONFIG_UBSAN=y 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
2015-12-04 14:27 ` kbuild test robot
2015-12-05 0:40 ` Andrew Morton
2015-12-08 23:59 ` Andrew Morton
2015-12-10 1:15 ` Daniel Axtens
2015-12-05 0:37 ` Andrew Morton [this message]
2015-12-07 16:48 ` [PATCH v4 0/3] " Andrey Ryabinin
2015-12-10 15:48 ` Andrey Ryabinin
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