On Sat, May 14, 2022 at 03:30:49PM +0000, Taylor R Campbell wrote: > > Date: Sat, 14 May 2022 15:14:50 +0000 > > From: sc.dy...@gmail.com > > > > On 2022/05/14 13:47, Taylor R Campbell wrote: > > > Can you please try the two attached patches? > > > > > > 1. uvideobadstream.patch should fix the _crash_ when you try to open a > > > video stream on a device that the driver deemed to have a bad > > > descriptor. Try this one first, if you have time -- it prevents a > > > malicious USB device from causing this kernel crash. > > > > Yes, it fixes crash -- as it prevents attaching video(4)... > > > > > 2. uvideosizeof.patch should fix the sizeof calculations so that the > > > driver stops rejecting your device's descriptor. This one should > > > make your device work again. > > > > It works well again. > > Thanks, committed!
Just logged into zoom.us without a panic :-) and now # videoctl -a videoctl: couldn't open '/dev/video0': Input/output error Does this dmesg look sensible? $ dmesg -t | grep video uvideo0 at uhub1 port 6 configuration 1 interface 0: CKFIH12P466071019182 (0x0bda) Integrated_Webcam_HD (0x5531), rev 2.01/81.78, addr 2 video0 at uvideo0: CKFIH12P466071019182 (0x0bda) Integrated_Webcam_HD (0x5531), rev 2.01/81.78, addr 2 video1 at uvideo0: CKFIH12P466071019182 (0x0bda) Integrated_Webcam_HD (0x5531), rev 2.01/81.78, addr 2 uvideo1 at uhub1 port 6 configuration 1 interface 2: CKFIH12P466071019182 (0x0bda) Integrated_Webcam_HD (0x5531), rev 2.01/81.78, addr 2 video2 at uvideo1: CKFIH12P466071019182 (0x0bda) Integrated_Webcam_HD (0x5531), rev 2.01/81.78, addr 2 video3 at uvideo1: CKFIH12P466071019182 (0x0bda) Integrated_Webcam_HD (0x5531), rev 2.01/81.78, addr 2 there is just the one built-in camera... Cheers, Patrick
