From: Borislav Petkov <bp@alien8.de>
To: Li Zefan <lizefan@huawei.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
Michal Marek <mmarek@suse.cz>,
Weng Meiling <wengmeiling.weng@huawei.com>,
Libo Chen <clbchenlibo.chen@huawei.com>,
LKML <linux-kernel@vger.kernel.org>,
linux-kbuild@vger.kernel.org
Subject: Re: [PATCH] menuconfig: fix NULL pointer dereference when searching a symbol
Date: Tue, 7 May 2013 12:44:55 +0200 [thread overview]
Message-ID: <20130507104455.GB7633@pd.tnic> (raw)
In-Reply-To: <518869BB.2020808@huawei.com>
On Tue, May 07, 2013 at 10:40:59AM +0800, Li Zefan wrote:
> Searching PPC_EFIKA results segmentation fault, and it's because
> get_symbol_prop() returns NULL.
>
> In this case CONFIG_PPC_EFIKA is defined in arch/powerpc/platforms/
> 52xx/Kconfig, so it won't be parsed if ARCH!=PPC, but menuconfig
> knows this symbol when it parses sound/soc/fsl/Kconfig:
>
> config SND_MPC52xx_SOC_EFIKA
> tristate "SoC AC97 Audio support for bbplan Efika and STAC9766"
> depends on PPC_EFIKA
>
> This bug was introduced by commit bcdedcc1afd6 ("menuconfig: print more
> info for symbol without prompts").
Yep, it works.
> Reported-by: Borislav Petkov <bp@alien8.de>
..-and-tested-by: ...
Thanks.
--
Regards/Gruss,
Boris.
Sent from a fat crate under my desk. Formatting is fine.
--
next prev parent reply other threads:[~2013-05-07 10:43 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-07 2:40 [PATCH] menuconfig: fix NULL pointer dereference when searching a symbol Li Zefan
2013-05-07 2:48 ` Libo Chen
2013-05-07 10:44 ` Borislav Petkov [this message]
2013-05-07 13:21 ` Yann E. MORIN
2013-05-07 13:47 ` Michal Marek
2013-05-07 14:06 ` Yann E. MORIN
2013-05-07 14:13 ` Michal Marek
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