[syzbot] Monthly btrfs report (Sep 2026)

From: syzbot

Date: Fri Sep 04 2026 - 16:35:23 EST


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, 8 new issues were detected and 0 were fixed.
In total, 30 issues are still open and 121 have already been fixed.
There are also 12 low-priority issues.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 198 Yes WARNING in btrfs_run_delayed_refs (2)
https://syzkaller.appspot.com/bug?extid=810ea5febd3b79bdd384
<2> 78 Yes WARNING in btrfs_destroy_inode (3)
https://syzkaller.appspot.com/bug?extid=25df068cd8509f8c0fe1
<3> 71 No possible deadlock in btrfs_dirty_inode (2)
https://syzkaller.appspot.com/bug?extid=415a049af48761105c01
<4> 15 No WARNING in __add_block_group_free_space
https://syzkaller.appspot.com/bug?extid=6931616d57696102d8aa
<5> 15 No WARNING in __btrfs_update_delayed_inode (4)
https://syzkaller.appspot.com/bug?extid=768687d6d7c96a124e24
<6> 13 No WARNING in btrfs_create_new_inode (3)
https://syzkaller.appspot.com/bug?extid=c1b8c52e6c0142c5e448
<7> 1105 Yes WARNING in btrfs_chunk_alloc
https://syzkaller.appspot.com/bug?extid=e8e56d5d31d38b5b47e7
<8> 511 Yes WARNING in btrfs_remove_chunk
https://syzkaller.appspot.com/bug?extid=e8582cc16881ec70a430
<9> 52 Yes WARNING in btrfs_finish_one_ordered
https://syzkaller.appspot.com/bug?extid=6e54e639e7b934d64304
<10> 47 Yes WARNING in btrfs_init_new_device
https://syzkaller.appspot.com/bug?extid=3bf3e110b2d406b8166c

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