From 8da9bae3292ea8aee803e7cda295877c361f0694 Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Wed, 3 Sep 2008 17:12:25 -0300 Subject: [PATCH] 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 Signed-off-by: Adrian Bunk Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/vivi.c | 8 ++++---- 1 file 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); -- 2.20.1