Re: WARNING in usercopy_warn

2018-01-31 Thread Kees Cook
On Wed, Jan 31, 2018 at 8:36 AM, Eric Biggers wrote: > On Fri, Jan 19, 2018 at 06:58:01AM -0800, syzbot wrote: >> Hello, >> >> syzbot hit the following crash on linux-next commit >> b625c1ff82272e26c76570d3c7123419ec345b20 >> >> So far this crash happened 5 times on linux-next, mmots. >> C reprodu

Re: WARNING in usercopy_warn

2018-01-30 Thread Eric Biggers
On Fri, Jan 19, 2018 at 06:58:01AM -0800, syzbot wrote: > Hello, > > syzbot hit the following crash on linux-next commit > b625c1ff82272e26c76570d3c7123419ec345b20 > > So far this crash happened 5 times on linux-next, mmots. > C reproducer is attached. > syzkaller reproducer is attached. > Raw co