[syzbot] Monthly f2fs report (Jul 2023)

[syzbot]

Hello f2fs maintainers/developers,

This is a 31-day syzbot report for the f2fs subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/f2fs

During the period, 4 new issues were detected and 1 were fixed.
In total, 11 issues are still open and 29 have been fixed so far.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 212     Yes   INFO: task hung in f2fs_balance_fs
                  https://syzkaller.appspot.com/bug?extid=8b85865808c8908a0d8c
<2> 96      Yes   kernel BUG in f2fs_evict_inode
                  https://syzkaller.appspot.com/bug?extid=e1246909d526a9d470fa
<3> 49      Yes   possible deadlock in f2fs_file_mmap
                  https://syzkaller.appspot.com/bug?extid=c0e3db4f9cd6e05cadd3
<4> 4       Yes   WARNING: lock held when returning to user space in f2fs_write_single_data_page
                  https://syzkaller.appspot.com/bug?extid=eb6201248f684e99b9f8
<5> 1       Yes   general protection fault in f2fs_drop_extent_tree
                  https://syzkaller.appspot.com/bug?extid=f4649be1be739e030111

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