Re: BUG: unable to handle kernel NULL pointer dereference in __generic_file_write_iter

2019-02-28 Thread Josh Poimboeuf
On Thu, Feb 21, 2019 at 11:36:24AM -0800, Andrew Morton wrote: > On Thu, 21 Feb 2019 06:52:04 -0800 syzbot > wrote: > > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit:4aa9fc2a435a Revert "mm, memory_hotplug: initialize struct.. > > git tree: upstream > > co

Re: missing stack trace entry on NULL pointer call [was: Re: BUG: unable to handle kernel NULL pointer dereference in __generic_file_write_iter]

2019-02-28 Thread Jann Horn
On Thu, Feb 28, 2019 at 5:34 PM Jann Horn wrote: > > On Thu, Feb 28, 2019 at 1:57 PM Thomas Gleixner wrote: > > On Thu, 28 Feb 2019, Jann Horn wrote: > > > +Josh for unwinding, +x86 folks > > > On Wed, Feb 27, 2019 at 11:43 PM Andrew Morton > > > wrote: > > > > On Thu, 21 Feb 2019 06:52:04 -0800

Re: missing stack trace entry on NULL pointer call [was: Re: BUG: unable to handle kernel NULL pointer dereference in __generic_file_write_iter]

2019-02-28 Thread Jann Horn
On Thu, Feb 28, 2019 at 1:57 PM Thomas Gleixner wrote: > On Thu, 28 Feb 2019, Jann Horn wrote: > > +Josh for unwinding, +x86 folks > > On Wed, Feb 27, 2019 at 11:43 PM Andrew Morton > > wrote: > > > On Thu, 21 Feb 2019 06:52:04 -0800 syzbot > > > wrote: > > > > > > > Hello, > > > > > > > > syzb

Re: missing stack trace entry on NULL pointer call [was: Re: BUG: unable to handle kernel NULL pointer dereference in __generic_file_write_iter]

2019-02-28 Thread Thomas Gleixner
On Thu, 28 Feb 2019, Jann Horn wrote: > +Josh for unwinding, +x86 folks > On Wed, Feb 27, 2019 at 11:43 PM Andrew Morton > wrote: > > On Thu, 21 Feb 2019 06:52:04 -0800 syzbot > > wrote: > > > > > Hello, > > > > > > syzbot found the following crash on: > > > > > > HEAD commit:4aa9fc2a435a Re

missing stack trace entry on NULL pointer call [was: Re: BUG: unable to handle kernel NULL pointer dereference in __generic_file_write_iter]

2019-02-27 Thread Jann Horn
+Josh for unwinding, +x86 folks On Wed, Feb 27, 2019 at 11:43 PM Andrew Morton wrote: > On Thu, 21 Feb 2019 06:52:04 -0800 syzbot > wrote: > > > Hello, > > > > syzbot found the following crash on: > > > > HEAD commit:4aa9fc2a435a Revert "mm, memory_hotplug: initialize struct.. > > git tree:

Re: BUG: unable to handle kernel NULL pointer dereference in __generic_file_write_iter

2019-02-21 Thread Andrew Morton
On Thu, 21 Feb 2019 06:52:04 -0800 syzbot wrote: > Hello, > > syzbot found the following crash on: > > HEAD commit:4aa9fc2a435a Revert "mm, memory_hotplug: initialize struct.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1101382f40 > kernel con

BUG: unable to handle kernel NULL pointer dereference in __generic_file_write_iter

2019-02-21 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:4aa9fc2a435a Revert "mm, memory_hotplug: initialize struct.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1101382f40 kernel config: https://syzkaller.appspot.com/x/.config?x=4fceea9e2d99ac20 da