From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: Christophe Leroy <christophe.leroy@c-s.fr>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Erhard F. <erhard_f@mailbox.org>
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] powerpc/kasan: fix shadow area set up for modules.
Date: Thu, 22 Aug 2019 23:08:58 +1000 (AEST) [thread overview]
Message-ID: <46DlGg0X9Kz9sP8@ozlabs.org> (raw)
In-Reply-To: <4f887e9b77d0d725cbb52035c7ece485c1c5fc14.1565361881.git.christophe.leroy@c-s.fr>
On Fri, 2019-08-09 at 14:58:10 UTC, Christophe Leroy wrote:
> When loading modules, from time to time an Oops is encountered
> during the init of shadow area for globals. This is due to the
> last page not always being mapped depending on the exact distance
> between the start and the end of the shadow area and the alignment
> with the page addresses.
>
> Fix this by aligning the starting address with the page address.
>
> Reported-by: Erhard F. <erhard_f@mailbox.org>
> Link: https://bugzilla.kernel.org/show_bug.cgi?id=204479
> Fixes: 2edb16efc899 ("powerpc/32: Add KASAN support")
> Cc: stable@vger.kernel.org
> Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/663c0c9496a69f80011205ba3194049bcafd681d
cheers
prev parent reply other threads:[~2019-08-22 13:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-09 14:58 [PATCH] powerpc/kasan: fix shadow area set up for modules Christophe Leroy
2019-08-22 13:08 ` Michael Ellerman [this message]
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