Re: [syzbot] [kvm?] WARNING in kvm_mmu_notifier_invalidate_range_start (3)

From: Sean Christopherson
Date: Tue Mar 05 2024 - 10:50:14 EST


On Tue, Mar 05, 2024, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
>
> commit 4cccb6221cae6d020270606b9e52b1678fc8b71a
> Author: Muhammad Usama Anjum <usama.anjum@xxxxxxxxxxxxx>
> Date: Tue Jan 9 11:24:42 2024 +0000
>
> fs/proc/task_mmu: move mmu notification mechanism inside mm lock
>
> bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1638c66c180000
> start commit: b57b17e88bf5 Merge tag 'parisc-for-6.7-rc1-2' of git://git..
> git tree: upstream
> kernel config: https://syzkaller.appspot.com/x/.config?x=d950a2e2e34359e2
> dashboard link: https://syzkaller.appspot.com/bug?extid=c74f40907a9c0479af10
> syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15785fc4e80000
> C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1469c9a8e80000
>
> If the result looks correct, please mark the issue as fixed by replying with:
>
> #syz fix: fs/proc/task_mmu: move mmu notification mechanism inside mm lock
>
> For information about bisection process see: https://goo.gl/tpsmEJ#bisection

#syz fix: fs/proc/task_mmu: move mmu notification mechanism inside mm lock