diff options
| author | Adrian Bunk <bunk@kernel.org> | 2008-09-03 17:12:25 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-09-03 18:37:53 -0300 |
| commit | 8da9bae3292ea8aee803e7cda295877c361f0694 (patch) | |
| tree | b50317e39edf3f0d92e704bdfd87b0ea58f78fb1 /drivers/media | |
| parent | 9a0c04a1ee3b4df6a30ae6975e13c558908df400 (diff) | |
| download | linux-8da9bae3292ea8aee803e7cda295877c361f0694.tar.bz2 | |
V4L/DVB (8842): vivi_release(): fix use-after-free
video_device_release() does kfree(), which made the following printk()
doing a use-after-free.
printk() first and release then.
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/vivi.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index f55d77db1558..8ba8daafd7ea 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -1021,13 +1021,13 @@ static int vivi_release(void) dev = list_entry(list, struct vivi_dev, vivi_devlist); if (-1 != dev->vfd->minor) { - video_unregister_device(dev->vfd); - printk(KERN_INFO "%s: /dev/video%d unregistered.\n", + printk(KERN_INFO "%s: unregistering /dev/video%d\n", VIVI_MODULE_NAME, dev->vfd->minor); + video_unregister_device(dev->vfd); } else { - video_device_release(dev->vfd); - printk(KERN_INFO "%s: /dev/video%d released.\n", + printk(KERN_INFO "%s: releasing /dev/video%d\n", VIVI_MODULE_NAME, dev->vfd->minor); + video_device_release(dev->vfd); } kfree(dev); |