[syzbot] Monthly fs report (Sep 2026)

[syzbot] Monthly fs report (Sep 2026)

[syzbot]

Hello fs maintainers/developers,

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

During the period, 3 new issues were detected and 3 were fixed.
In total, 46 issues are still open and 642 have already been fixed.
There are also 30 low-priority issues.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  10972   Yes   KASAN: use-after-free Read in hpfs_get_ea
                   https://syzkaller.appspot.com/bug?extid=fa88eb476e42878f2844
<2>  8730    Yes   INFO: task hung in __iterate_supers
                   https://syzkaller.appspot.com/bug?extid=b10aefdd9ef275e9368d
<3>  2032    Yes   INFO: task hung in user_get_super (2)
                   https://syzkaller.appspot.com/bug?extid=ba09f4a317431df6cddf
<4>  2002    Yes   INFO: task hung in lookup_slow (3)
                   https://syzkaller.appspot.com/bug?extid=7cfc6a4f6b025f710423
<5>  33      Yes   general protection fault in __simple_recursive_removal (2)
                   https://syzkaller.appspot.com/bug?extid=cc460646984184ad435a
<6>  26      Yes   KASAN: slab-use-after-free Read in lockref_get (2)
                   https://syzkaller.appspot.com/bug?extid=227dbc9afd022922d624
<7>  25      Yes   INFO: rcu detected stall in sys_close (7)
                   https://syzkaller.appspot.com/bug?extid=393022c13d02e1f680e3
<8>  25      Yes   VFS: Close: file count is zero (use-after-free) (2)
                   https://syzkaller.appspot.com/bug?extid=592c653b056459925299
<9>  22      Yes   INFO: task hung in writeback_iter (3)
                   https://syzkaller.appspot.com/bug?extid=1e3ff4b07c16ca0f6fe2
<10> 22      No    possible deadlock in uvcg_mjpeg_bma_controls_show
                   https://syzkaller.appspot.com/bug?extid=2b082cefcfb1439289ef

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