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| author | Li Zefan <lizefan@huawei.com> | 2013-05-07 15:56:54 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-05-07 07:55:36 -0700 |
| commit | 383da76f5261637b8beacb99a83f5834b14fc432 (patch) | |
| tree | d22fc5e9d1f8f2ae11b367caf9cbc11fc81cb3bb /mm/memory-failure.c | |
| parent | 2a437cd36e627752e9cac71bfec6293f1e4e4144 (diff) | |
| download | linux-383da76f5261637b8beacb99a83f5834b14fc432.tar.gz | |
menuconfig: fix NULL pointer dereference when searching a symbol
Searching for PPC_EFIKA results in a 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").
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Li Zefan <lizefan@huawei.com>
Tested-by: Libo Chen <libo.chen@huawei.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Michal Marek <mmarek@suse.cz>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/memory-failure.c')
0 files changed, 0 insertions, 0 deletions