This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:
apport-collect 1489077
and then change the status of the bug to 'Confirmed'.
If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.
This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.
** Changed in: linux (Ubuntu)
Status: New => Incomplete
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1489077
Title:
v4l2 can crash computer with badly written userland code
Status in linux package in Ubuntu:
Incomplete
Bug description:
In my simple bit of code to grab a frame from a webcam based on the
example code given here:
https://gist.github.com/Circuitsoft/1126411
I found a badly crafted version would crash the computer (dead except
for flashing keyboard lights).
Simply calling ioctl(cam, VIDIOC_STREAMON, &buf.type) twice without
calling VIDIOC_STREAMOFF inbetween causes the crash. I realise this
code is incompetent but it shouldn't require a hard reboot to recover
from it. I guess this might be rather system specific however it
seemed worth reporting.
I can't recall the last time I managed to crash a linux box from
userland...
Kernel: Ubuntu 3.13.0-62.102-generic 3.13.11-ckt24
Camera: Bus 001 Device 002: ID 046d:0990 Logitech, Inc. QuickCam Pro
9000
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1489077/+subscriptions
--
Mailing list: https://launchpad.net/~kernel-packages
Post to : kernel-packages@lists.launchpad.net
Unsubscribe : https://launchpad.net/~kernel-packages
More help : https://help.launchpad.net/ListHelp
