Re: general protection fault in __dentry_path

2019-02-27 Thread Greg Kroah-Hartman
On Tue, Feb 26, 2019 at 11:19:33AM -0800, Eric Biggers wrote: > On Wed, Feb 20, 2019 at 08:14:03PM -0800, syzbot wrote: > > syzbot has found a reproducer for the following crash on: > > > > HEAD commit:2137397c92ae Merge tag 'sound-5.0' of git://git.kernel.org.. > > git tree: upstream >

Re: general protection fault in __dentry_path

2019-02-26 Thread Eric Biggers
On Wed, Feb 20, 2019 at 08:14:03PM -0800, syzbot wrote: > syzbot has found a reproducer for the following crash on: > > HEAD commit:2137397c92ae Merge tag 'sound-5.0' of git://git.kernel.org.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=1270bf78c0

Re: general protection fault in __dentry_path

2019-02-20 Thread syzbot
syzbot has found a reproducer for the following crash on: HEAD commit:2137397c92ae Merge tag 'sound-5.0' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=1270bf78c0 kernel config: https://syzkaller.appspot.com/x/.config?x=713234

Re: general protection fault in __dentry_path

2019-01-30 Thread Tetsuo Handa
This report should be sent to KVM people. I guess that a lack of serialization between kvm_create_vm_debugfs() from kvm_dev_ioctl_create_vm() and kvm_destroy_vm_debugfs() from kvm_destroy_vm() is causing a race on kvm->debugfs_dentry when kvm_uevent_notify_change() called dentry_path_raw(kvm->debu

Re: general protection fault in __dentry_path

2019-01-30 Thread syzbot
syzbot has found a reproducer for the following crash on: HEAD commit:02495e76ded5 Add linux-next specific files for 20190130 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=106161ef40 kernel config: https://syzkaller.appspot.com/x/.config?x=a2b2e9c0b

general protection fault in __dentry_path

2019-01-30 Thread syzbot
Hello, syzbot found the following crash on: HEAD commit:02495e76ded5 Add linux-next specific files for 20190130 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=17e8d80f40 kernel config: https://syzkaller.appspot.com/x/.config?x=a2b2e9c0bc43c14d dashb