[syzbot] Monthly usb report (Nov 2025)

[syzbot] Monthly usb report (Nov 2025)

[syzbot]

Hello usb maintainers/developers,

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

During the period, 3 new issues were detected and 1 were fixed.
In total, 76 issues are still open and 401 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  6383    Yes   KASAN: use-after-free Read in v4l2_fh_init
                   https://syzkaller.appspot.com/bug?extid=c025d34b8eaa54c571b8
<2>  3842    Yes   WARNING in usb_free_urb
                   https://syzkaller.appspot.com/bug?extid=b466336413a1fba398a5
<3>  3008    Yes   KASAN: use-after-free Read in v4l2_fh_open
                   https://syzkaller.appspot.com/bug?extid=b2391895514ed9ef4a8e
<4>  2141    Yes   INFO: task hung in jbd2_journal_commit_transaction (5)
                   https://syzkaller.appspot.com/bug?extid=3071bdd0a9953bc0d177
<5>  1824    Yes   possible deadlock in input_inject_event
                   https://syzkaller.appspot.com/bug?extid=79c403850e6816dc39cf
<6>  1646    Yes   INFO: task hung in usbdev_open (2)
                   https://syzkaller.appspot.com/bug?extid=b73659f5bb96fac34820
<7>  1411    Yes   KASAN: use-after-free Read in em28xx_init_extension (2)
                   https://syzkaller.appspot.com/bug?extid=99d6c66dbbc484f50e1c
<8>  1068    Yes   WARNING in enable_work
                   https://syzkaller.appspot.com/bug?extid=7053fbd8757fecbbe492
<9>  853     Yes   INFO: task hung in hub_port_init (3)
                   https://syzkaller.appspot.com/bug?extid=b6f11035e572f08bc20f
<10> 807     Yes   INFO: rcu detected stall in syscall_exit_to_user_mode (2)
                   https://syzkaller.appspot.com/bug?extid=a68ef3b1f46bc3aced5c

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