Laurent Pinchart ed0ee0ce0a [media] uvcvideo: Fix race-related crash in uvc_video_clock_update() ...

The driver frees the clock samples buffer before stopping the video
buffers queue. If a DQBUF call arrives in-between,
uvc_video_clock_update() will be called with a NULL clock samples
buffer, leading to a crash. This occurs very frequently when using the
webcam with the flash browser plugin.

Move clock initialization/cleanup to uvc_video_enable() in order to free
the clock samples buffer after the queue is stopped. Make sure the clock
is reset at resume time to avoid miscalculating timestamps.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2012-04-09 10:15:28 -03:00

..

Kconfig

[media] uvcvideo: Use videobuf2-vmalloc

2011-12-11 11:13:06 -02:00

Makefile

[media] uvcvideo: Add debugfs support

2011-12-11 11:22:07 -02:00

uvc_ctrl.c

[media] uvcvideo: Use kcalloc instead of kzalloc to allocate array

2011-12-30 17:22:12 -02:00

uvc_debugfs.c

[media] uvcvideo: Extract video stream statistics

2011-12-11 11:22:08 -02:00

uvc_driver.c

[media] uvcvideo: uvc_driver.c: use linux/atomic.h

2012-03-19 14:08:34 -03:00

uvc_entity.c

[media] uvcvideo: Fix crash when linking entities

2011-09-21 22:18:07 -03:00

uvc_isight.c

[media] uvcvideo: Move fields from uvc_buffer::buf to uvc_buffer

2011-12-11 11:12:05 -02:00

uvc_queue.c

[media] uvcvideo: Allow userptr IO mode

2012-03-19 14:07:13 -03:00

uvc_status.c

[media] uvcvideo: Update e-mail address and copyright notices

2010-10-21 01:18:18 -02:00

uvc_v4l2.c

[media] uvcvideo: Implement compat_ioctl32 for custom ioctls

2012-03-19 14:07:01 -03:00

uvc_video.c

[media] uvcvideo: Fix race-related crash in uvc_video_clock_update()

2012-04-09 10:15:28 -03:00

uvcvideo.h

[media] uvcvideo: Fix integer overflow in uvc_ioctl_ctrl_map()

2011-12-11 11:23:54 -02:00