Hi,
This patchset is to add a validator of dimension information for drivers
in kernel/userspace.
The dimension information was added to ALSA control interface. With the
information, members in an element compose multi-dimensional matrix. For
example, this matrix can be used for row/column table with values. In this
case, dimension level 1 and 2 are utilized to describe the number of rows
and columns by element member unit.
When dimension information has no contradictions to the number of members
in an element, there's no problem. Once it has, it can cause an issue. In
worst case, it can cause buffer-overrun in userspace.
The aim of this patchset is to prevent this situation.
Takashi Sakamoto (3):
ALSA: echoaudio: purge contradictions between dimension matrix members
and total number of members
ALSA: control: add dimension validator for userspace element
ALSA: control: add dimension validator for kernel driver
sound/core/control.c | 77 ++++++++++++++++++++++++++++++++---------
sound/pci/echoaudio/echoaudio.c | 6 ++--
2 files changed, 64 insertions(+), 19 deletions(-)
--
2.7.4
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