joshua stein <j...@openbsd.org> wrote:

> On Fri, 04 Oct 2019 at 01:05:12 +0200, Solene Rapenne wrote:
> > I found this line just before writing a gigantic core file
> > 
> > 52304 firefox  CALL  ioctl(124,VIDIOC_QUERYCAP,0x1d9a1d7ac158)
> > 
> > I'm not sure what I need to search for the fd, I found these lines
> > related to "124".
> > 
> > 52304 firefox  NAMI  "/dev/video0"
> > 52304 firefox  GIO   fd 4 wrote 4096 bytes
> >  
> > "\0\0\0\M^?\0\0\0\M^?\0\0\0\M^?\0\0\0\M^?\0\0\0\M^?\0\0\0\M^?\0\0\0\M^?\0\0\0\M^?\0\0\0\M^?\0\0\
> >  [ lot of this ]
> > 52304 firefox  RET   open 124/0x7c
> > 
> 
> I'm guessing this is the main process since the content process 
> can't open /dev/video, but if you grep the kdump output for 
> "52304.*pledge" it will show what file it read its promises from.  
> Then you can add the video pledge to that file and see if it fixes 
> the crash.
> 
> But perhaps it's stranger that Firefox is trying to read your webcam 
> information just by viewing a YouTube video...

Maybe they are taking photos of the people who won't use DOH.



Reply via email to