[syzbot] Monthly iommu report (Jun 2023)

[syzbot]

Hello iommu maintainers/developers,

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

During the period, 2 new issues were detected and 0 were fixed.
In total, 5 issues are still open and 3 have been fixed so far.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 3       Yes   WARNING in iommufd_test_check_pages
                  https://syzkaller.appspot.com/bug?extid=353c7be4964c6253f24a
<2> 2       Yes   WARNING in iommufd_test
                  https://syzkaller.appspot.com/bug?extid=94646b0ed2dcbb1f9c2f
<3> 1       Yes   KASAN: slab-use-after-free Read in iommufd_access_unpin_pages
                  https://syzkaller.appspot.com/bug?extid=6c8d756f238a75fc3eb8
<4> 1       No    KASAN: slab-use-after-free Read in iopt_unmap_iova_range
                  https://syzkaller.appspot.com/bug?extid=1ad12d16afca0e7d2dde

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