diff options
| author | Dan Rosenberg <drosenberg@vsecurity.com> | 2010-09-15 18:44:22 -0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-12-09 13:24:21 -0800 |
| commit | be609a1fca672655bf831d296685f33ba330e007 (patch) | |
| tree | 873e9b2ad4574c1f631d39654e2feea6e629485f /net | |
| parent | 9735bccca9d144ab223cab2cadcd7dfa96a958bf (diff) | |
V4L/DVB: ivtvfb: prevent reading uninitialized stack memory
commit 405707985594169cfd0b1d97d29fcb4b4c6f2ac9 upstream.
The FBIOGET_VBLANK device ioctl allows unprivileged users to read 16
bytes of uninitialized stack memory, because the "reserved" member of
the fb_vblank struct declared on the stack is not altered or zeroed
before being copied back to the user. This patch takes care of it.
Signed-off-by: Dan Rosenberg <dan.j.rosenberg@gmail.com>
Signed-off-by: Andy Walls <awalls@md.metrocast.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net')
0 files changed, 0 insertions, 0 deletions