linux-kernel - [syzbot] Monthly btrfs report (Oct 2025)

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Message-ID: <68ff6a90.050a0220.3344a1.0392.GAE@google.com>
Date: Mon, 27 Oct 2025 05:50:24 -0700
From: syzbot <syzbot+listbb292478bc721c3e2475@...kaller.appspotmail.com>
To: clm@...com, dsterba@...e.com, josef@...icpanda.com, 
	linux-btrfs@...r.kernel.org, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] Monthly btrfs report (Oct 2025)

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 2 were fixed.
In total, 39 issues are still open and 105 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  4953    Yes   WARNING in btrfs_space_info_update_bytes_may_use
                   https://syzkaller.appspot.com/bug?extid=8edfa01e46fd9fe3fbfb
<2>  3766    Yes   BUG: MAX_LOCKDEP_CHAIN_HLOCKS too low! (7)
                   https://syzkaller.appspot.com/bug?extid=74f79df25c37437e4d5a
<3>  1169    Yes   WARNING in btrfs_create_pending_block_groups (2)
                   https://syzkaller.appspot.com/bug?extid=b0643a1387dac0572b27
<4>  1083    Yes   WARNING in btrfs_commit_transaction (2)
                   https://syzkaller.appspot.com/bug?extid=dafbca0e20fbc5946925
<5>  637     Yes   WARNING in btrfs_chunk_alloc
                   https://syzkaller.appspot.com/bug?extid=e8e56d5d31d38b5b47e7
<6>  422     Yes   WARNING in btrfs_remove_chunk
                   https://syzkaller.appspot.com/bug?extid=e8582cc16881ec70a430
<7>  368     No    possible deadlock in lookup_slow (3)
                   https://syzkaller.appspot.com/bug?extid=65459fd3b61877d717a3
<8>  245     Yes   WARNING in btrfs_release_global_block_rsv (2)
                   https://syzkaller.appspot.com/bug?extid=48ed002119c0f19daf63
<9>  168     Yes   WARNING in btrfs_put_block_group
                   https://syzkaller.appspot.com/bug?extid=e38c6fff39c0d7d6f121
<10> 163     Yes   kernel BUG in clear_state_bit
                   https://syzkaller.appspot.com/bug?extid=78dbea1c214b5413bdd3

---
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 syzkaller@...glegroups.com.

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