Re: general protection fault in cgroup_fd_array_put_ptr

On 01/10/2018 01:58 PM, syzbot wrote:

Hello,

syzkaller hit the following crash on b4464bcab38d3f7fe995a7cb960eeac6889bec08
git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/master
compiler: gcc (GCC) 7.1.1 20170620
.config is attached
Raw console output is attached.
C reproducer is attached
syzkaller reproducer is attached. See https://goo.gl/kgGztJ
for information about syzkaller reproducers

Currently looking into all of the reports. Looks they're all related to fd array
map. Will get back once I have some more data & managed to reproduce.

Thanks,
Daniel