[syzbot] Monthly kvm-x86 report (Apr 2026)

[syzbot]

Hello kvm-x86 maintainers/developers,

This is a 31-day syzbot report for the kvm-x86 subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/kvm-x86

During the period, 1 new issues were detected and 0 were fixed.
In total, 5 issues are still open and 78 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 687     Yes   WARNING: locking bug in kvm_xen_set_evtchn_fast
                  https://syzkaller.appspot.com/bug?extid=919877893c9d28162dc2
<2> 318     Yes   WARNING in handle_exception_nmi (2)
                  https://syzkaller.appspot.com/bug?extid=4688c50a9c8e68e7aaa1
<3> 4       Yes   INFO: rcu detected stall in kvm_vcpu_ioctl (4)
                  https://syzkaller.appspot.com/bug?extid=3d5461510f8dc4adfe30

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