Here, em28xx_free_v4l2 is release "v4l2->dev->v4l2" Which is allready release by em28xx_v4l2_init. Signed-off-by: Arvind Yadav <arvind.yadav.cs@xxxxxxxxx> --- This bug report by Andrey Konovalov "net/media/em28xx: use-after-free in v4l2_fh_init" drivers/media/usb/em28xx/em28xx-video.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/usb/em28xx/em28xx-video.c b/drivers/media/usb/em28xx/em28xx-video.c index 8d253a5..f1ee53f 100644 --- a/drivers/media/usb/em28xx/em28xx-video.c +++ b/drivers/media/usb/em28xx/em28xx-video.c @@ -2785,8 +2785,8 @@ static int em28xx_v4l2_init(struct em28xx *dev) v4l2_ctrl_handler_free(&v4l2->ctrl_handler); v4l2_device_unregister(&v4l2->v4l2_dev); err: - dev->v4l2 = NULL; kref_put(&v4l2->ref, em28xx_free_v4l2); + dev->v4l2 = NULL; mutex_unlock(&dev->lock); return ret; } -- 1.9.1
