diff options
| author | Dan Rosenberg <drosenberg@vsecurity.com> | 2010-09-22 13:05:09 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-09-26 17:18:27 -0700 |
| commit | a3bec3ef92a0395e64b5ac67640f420bfabe1bab (patch) | |
| tree | f79ed15d6437af0dcff57f5d37043c927b153e74 /drivers/rtc/rtc-s3c.c | |
| parent | e675865c92e66331dba733c544eb53b3d6c45eaa (diff) | |
drivers/video/sis/sis_main.c: prevent reading uninitialized stack memory
commit fd02db9de73faebc51240619c7c7f99bee9f65c7 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>
Cc: Thomas Winischhofer <thomas@winischhofer.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/rtc/rtc-s3c.c')
0 files changed, 0 insertions, 0 deletions