[syzbot] Monthly bcachefs report (Mar 2025)

[syzbot]

Hello bcachefs maintainers/developers,

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

During the period, 17 new issues were detected and 3 were fixed.
In total, 160 issues are still open and 138 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  29679   Yes   INFO: task hung in bch2_copygc_stop
                   https://syzkaller.appspot.com/bug?extid=c6fd966ebbdea1e8ff08
<2>  7346    Yes   INFO: task hung in __closure_sync
                   https://syzkaller.appspot.com/bug?extid=7bf808f7fe4a6549f36e
<3>  5807    Yes   KMSAN: uninit-value in bch2_inode_v3_validate
                   https://syzkaller.appspot.com/bug?extid=3cd97352d16f0e6066d9
<4>  3541    Yes   WARNING in bch2_trans_srcu_unlock
                   https://syzkaller.appspot.com/bug?extid=1e515cab343dbe5aa38a
<5>  3442    Yes   KASAN: slab-use-after-free Read in percpu_ref_put (2)
                   https://syzkaller.appspot.com/bug?extid=905d719acdbd213bf67e
<6>  2491    Yes   WARNING in bch2_fs_release
                   https://syzkaller.appspot.com/bug?extid=08d08d52c3a09bfc70f7
<7>  2333    Yes   KMSAN: uninit-value in rw_aux_tree_set (2)
                   https://syzkaller.appspot.com/bug?extid=ed52fb987e4b52cbfad9
<8>  1166    Yes   INFO: task hung in bch2_journal_reclaim_thread (2)
                   https://syzkaller.appspot.com/bug?extid=820dc3b465c69f766a57
<9>  983     Yes   possible deadlock in bch2_symlink
                   https://syzkaller.appspot.com/bug?extid=7836a68852a10ec3d790
<10> 821     Yes   KMSAN: uninit-value in bch2_trans_start_alloc_update
                   https://syzkaller.appspot.com/bug?extid=f02ee424846cc4e04e04

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