[syzbot-moderation] Monthly btrfs report (Apr 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, 34 issues are still open and 113 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 6586 Yes kernel BUG in close_ctree
https://syzkaller.appspot.com/bug?extid=2665d678fffcc4608e18
<2> 5612 Yes WARNING in btrfs_space_info_update_bytes_may_use
https://syzkaller.appspot.com/bug?extid=8edfa01e46fd9fe3fbfb
<3> 1342 Yes WARNING in btrfs_create_pending_block_groups (2)
https://syzkaller.appspot.com/bug?extid=b0643a1387dac0572b27
<4> 763 Yes WARNING in btrfs_chunk_alloc
https://syzkaller.appspot.com/bug?extid=e8e56d5d31d38b5b47e7
<5> 529 Yes WARNING in cleanup_transaction
https://syzkaller.appspot.com/bug?extid=021d10c4d4edc87daa03
<6> 454 Yes WARNING in btrfs_remove_chunk
https://syzkaller.appspot.com/bug?extid=e8582cc16881ec70a430
<7> 268 Yes WARNING in btrfs_release_global_block_rsv (2)
https://syzkaller.appspot.com/bug?extid=48ed002119c0f19daf63
<8> 254 Yes WARNING in __btrfs_free_extent (3)
https://syzkaller.appspot.com/bug?extid=480676efc0c3a76b5214
<9> 189 Yes kernel BUG in clear_state_bit
https://syzkaller.appspot.com/bug?extid=78dbea1c214b5413bdd3
<10> 106 Yes WARNING in btrfs_run_delayed_refs (2)
https://syzkaller.appspot.com/bug?extid=810ea5febd3b79bdd384

The report will be sent to: [linux...@vger.kernel.org c...@fb.com dst...@suse.com linux-...@vger.kernel.org].

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzk...@googlegroups.com.

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To change bug's subsystems, reply with:
#syz set <Ref> subsystems: new-subsystem

If the report looks fine to you, reply with:
#syz upstream

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#syz regenerate

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[Aleksandr Nogikh]

#syz upstream

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