[Bug 209845] New: ignore_msrs kernel NULL pointer dereference since 12bc2132b15e0a969b3f455d90a5f215ef239eff

[bugzilla-daemon@xxxxxxxxxxxxxxxxxxx]

https://bugzilla.kernel.org/show_bug.cgi?id=209845

            Bug ID: 209845
           Summary: ignore_msrs kernel NULL pointer dereference since
                    12bc2132b15e0a969b3f455d90a5f215ef239eff
           Product: Virtualization
           Version: unspecified
    Kernel Version: 5.9
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: kvm
          Assignee: virtualization_kvm@xxxxxxxxxxxxxxxxxxxx
          Reporter: kernel-bugs@xxxxxxxxxx
        Regression: No

Created attachment 293183
  --> https://bugzilla.kernel.org/attachment.cgi?id=293183&action=edit
dmesg section

Since commit 12bc2132b15e0a969b3f455d90a5f215ef239eff kvm crashes with a null
pointer dereference when ignore_msrs is set (log in attachement) 

Hardware: AMD Ryzen 3700x


other reports:
-
https://www.reddit.com/r/VFIO/comments/jdh9pp/so_i_just_updated_to_kernel_591_and/ 


- https://forum.manjaro.org/t/kernel-5-9-no-virtualization/31562

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