[syzbot-moderation] 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, 4 new issues were detected and 2 were fixed.
In total, 76 issues are still open and 402 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 6368 Yes KASAN: use-after-free Read in v4l2_fh_init
https://syzkaller.appspot.com/bug?extid=c025d34b8eaa54c571b8
<2> 3826 Yes WARNING in usb_free_urb
https://syzkaller.appspot.com/bug?extid=b466336413a1fba398a5
<3> 2999 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> 1817 Yes possible deadlock in input_inject_event
https://syzkaller.appspot.com/bug?extid=79c403850e6816dc39cf
<6> 1641 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> 1067 Yes WARNING in enable_work
https://syzkaller.appspot.com/bug?extid=7053fbd8757fecbbe492
<9> 847 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

The report will be sent to: [linu...@vger.kernel.org linux-...@vger.kernel.org].

---
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[Aleksandr Nogikh]

#syz regenerate

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[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)

[Aleksandr Nogikh]

#syz upstream

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