[PATCH] sys_get_thread_area does not clear the returned argument

[PATCH] sys_get_thread_area does not clear the returned argument

CC: <stable@kernel.org>
sys_get_thread_area does not memset to 0 its struct user_desc info before
copying it to user space...  since sizeof(struct user_desc) is 16 while the
actual datas which are filled are only 12 bytes + 9 bits (across the
bitfields), there is a (small) information leak.

This was already committed to Linus' repository.

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Chris Wright <chrisw@osdl.org>