linux-kernel - [syzbot] Monthly gfs2 report (Jan 2026)

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Message-ID: <696de8d0.050a0220.3390f1.003d.GAE@google.com>
Date: Mon, 19 Jan 2026 00:18:24 -0800
From: syzbot <syzbot+listd7413ccb1a116ef396da@...kaller.appspotmail.com>
To: gfs2@...ts.linux.dev, linux-kernel@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] Monthly gfs2 report (Jan 2026)

Hello gfs2 maintainers/developers,

This is a 31-day syzbot report for the gfs2 subsystem.
All related reports/information can be found at:
https://syzkaller.appspot.com/upstream/s/gfs2

During the period, 2 new issues were detected and 0 were fixed.
In total, 41 issues are still open and 41 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  1439    Yes   kernel BUG in gfs2_glock_nq (2)
                   https://syzkaller.appspot.com/bug?extid=70f4e455dee59ab40c80
<2>  1437    Yes   INFO: task hung in __gfs2_lookup
                   https://syzkaller.appspot.com/bug?extid=8a86bdd8c524e46ff97a
<3>  831     Yes   kernel BUG in gfs2_jindex_free (2)
                   https://syzkaller.appspot.com/bug?extid=150563285f78ac3e9bd4
<4>  603     Yes   WARNING in vfs_setxattr (3)
                   https://syzkaller.appspot.com/bug?extid=5ce48a14916462cec450
<5>  502     Yes   kernel BUG in __gfs2_glock_put (2)
                   https://syzkaller.appspot.com/bug?extid=ef4ad020dc976d178975
<6>  402     Yes   KASAN: stack-out-of-bounds Read in gfs2_dump_glock
                   https://syzkaller.appspot.com/bug?extid=7efd59a5a532c57037e6
<7>  233     Yes   WARNING in do_mknodat (3)
                   https://syzkaller.appspot.com/bug?extid=0cee785b798102696a4b
<8>  191     Yes   WARNING in chown_common
                   https://syzkaller.appspot.com/bug?extid=04c2672c56fbb9401640
<9>  156     Yes   KASAN: slab-use-after-free Read in gfs2_invalidate_folio
                   https://syzkaller.appspot.com/bug?extid=3a36aeabd31497d63f6e
<10> 110     Yes   KASAN: slab-use-after-free Write in gfs2_qd_dealloc (3)
                   https://syzkaller.appspot.com/bug?extid=42a37bf8045847d8f9d2

---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
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