[syzbot] Monthly btrfs report (Nov 2026)

[syzbot] Monthly btrfs report (Nov 2026)

[syzbot]

Hello btrfs maintainers/developers,

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

During the period, 2 new issues were detected and 1 were fixed.
In total, 31 issues are still open and 121 have already been fixed.
There are also 14 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  213     Yes   WARNING in btrfs_run_delayed_refs (2)
                   https://syzkaller.appspot.com/bug?extid=810ea5febd3b79bdd384
<2>  113     Yes   INFO: task hung in __alloc_workqueue (2)
                   https://syzkaller.appspot.com/bug?extid=ead9101689c4ca30dbe8
<3>  63      No    possible deadlock in kernfs_add_one
                   https://syzkaller.appspot.com/bug?extid=f50d605480fdec503770
<4>  19      No    WARNING in __btrfs_update_delayed_inode (4)
                   https://syzkaller.appspot.com/bug?extid=768687d6d7c96a124e24
<5>  17      Yes   WARNING in __add_block_group_free_space
                   https://syzkaller.appspot.com/bug?extid=6931616d57696102d8aa
<6>  17      Yes   WARNING in btrfs_add_to_free_space_tree (2)
                   https://syzkaller.appspot.com/bug?extid=554a2e08e4abc56984a9
<7>  7       No    kernel BUG in set_state_bits (2)
                   https://syzkaller.appspot.com/bug?extid=64579ad11e26758151bc
<8>  1463    Yes   WARNING in btrfs_chunk_alloc
                   https://syzkaller.appspot.com/bug?extid=e8e56d5d31d38b5b47e7
<9>  696     Yes   WARNING in btrfs_remove_chunk
                   https://syzkaller.appspot.com/bug?extid=e8582cc16881ec70a430
<10> 79      Yes   WARNING in btrfs_finish_one_ordered
                   https://syzkaller.appspot.com/bug?extid=6e54e639e7b934d64304

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