ALSA: sound/pci/asihpi: check adapter index in hpi_ioctl

The user-supplied index into the adapters array needs to be checked, or
an out-of-bounds kernel pointer could be accessed and used, leading to
potentially exploitable memory corruption.

Signed-off-by: Dan Rosenberg <drosenberg@vsecurity.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Dan Rosenberg 2011-03-17 18:32:24 -04:00 • committed by Takashi Iwai
commit 4a122c10fb