From: Kees Cook <keescook@chromium.org>
To: Marco Elver <elver@google.com>
Cc: "Peter Zijlstra" <peterz@infradead.org>,
linux-pci <linux-pci@vger.kernel.org>,
"DRI Development" <dri-devel@lists.freedesktop.org>,
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"Stan Skowronek" <stan@corellium.com>,
"Herbert Xu" <herbert@gondor.apana.org.au>,
"Helge Deller" <deller@gmx.de>,
kasan-dev <kasan-dev@googlegroups.com>,
"Sergio Paracuellos" <sergio.paracuellos@gmail.com>,
"Geert Uytterhoeven" <geert@linux-m68k.org>,
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Subject: Re: Build regressions/improvements in v5.16-rc1
Date: Mon, 15 Nov 2021 16:31:09 -0800 [thread overview]
Message-ID: <202111151624.91EDCFF7@keescook> (raw)
In-Reply-To: <YZKOce4XhAU49+Yn@elver.google.com>
On Mon, Nov 15, 2021 at 05:44:33PM +0100, Marco Elver wrote:
> On Mon, Nov 15, 2021 at 05:12PM +0100, Geert Uytterhoeven wrote:
> [...]
> > > + /kisskb/src/include/linux/fortify-string.h: error: call to '__read_overflow' declared with attribute error: detected read beyond size of object (1st parameter): => 263:25, 277:17
> >
> > in lib/test_kasan.c
> >
> > s390-all{mod,yes}config
> > arm64-allmodconfig (gcc11)
>
> Kees, wasn't that what [1] was meant to fix?
> [1] https://lkml.kernel.org/r/20211006181544.1670992-1-keescook@chromium.org
[1] fixed the ones I found when scanning for __write_overflow(). [2]
fixed some others, so it's possible there are yet more to fix?
Taking a look at Linus's tree, though, the "263" and "277" lines don't
line up correctly. I'll go see if I can reproduce this. Is this with
W=1?
-Kees
[2] https://www.ozlabs.org/~akpm/mmotm/broken-out/kasan-test-consolidate-workarounds-for-unwanted-__alloc_size-protection.patch
--
Kees Cook
next prev parent reply other threads:[~2021-11-16 0:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20211115155105.3797527-1-geert@linux-m68k.org>
2021-11-15 16:12 ` Build regressions/improvements in v5.16-rc1 Geert Uytterhoeven
2021-11-15 16:44 ` Marco Elver
2021-11-16 0:31 ` Kees Cook [this message]
2021-11-16 0:35 ` Kees Cook
2021-11-15 16:44 ` Helge Deller
2021-11-16 21:08 ` Nick Terrell
2021-11-16 21:27 ` Nick Terrell
2021-11-17 1:59 ` Nick Terrell
2021-11-17 2:05 ` Randy Dunlap
2021-11-17 2:19 ` Nick Terrell
2021-11-17 8:24 ` Geert Uytterhoeven
2021-11-17 11:22 ` Helge Deller
2021-11-17 19:39 ` Nick Terrell
2021-11-16 9:15 ` Thomas Bogendoerfer
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