[syzbot-moderation] Monthly usb report (Sep 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, 5 new issues were detected and 1 were fixed.
In total, 86 issues are still open and 393 have already been fixed.

Some of the still happening issues:

Ref Crashes Repro Title
<1> 17783 Yes KASAN: slab-use-after-free Read in hdm_disconnect
https://syzkaller.appspot.com/bug?extid=916742d5d24f6c254761
<2> 5661 Yes KASAN: use-after-free Read in v4l2_fh_init
https://syzkaller.appspot.com/bug?extid=c025d34b8eaa54c571b8
<3> 3005 Yes WARNING in usb_free_urb
https://syzkaller.appspot.com/bug?extid=b466336413a1fba398a5
<4> 2461 Yes KASAN: use-after-free Read in v4l2_fh_open
https://syzkaller.appspot.com/bug?extid=b2391895514ed9ef4a8e
<5> 1565 Yes possible deadlock in input_inject_event
https://syzkaller.appspot.com/bug?extid=79c403850e6816dc39cf
<6> 1488 Yes INFO: task hung in usbdev_open (2)
https://syzkaller.appspot.com/bug?extid=b73659f5bb96fac34820
<7> 1402 Yes KASAN: use-after-free Read in em28xx_init_extension (2)
https://syzkaller.appspot.com/bug?extid=99d6c66dbbc484f50e1c
<8> 941 Yes WARNING in enable_work
https://syzkaller.appspot.com/bug?extid=7053fbd8757fecbbe492
<9> 807 Yes INFO: rcu detected stall in syscall_exit_to_user_mode (2)
https://syzkaller.appspot.com/bug?extid=a68ef3b1f46bc3aced5c
<10> 750 Yes INFO: task hung in hub_port_init (3)
https://syzkaller.appspot.com/bug?extid=b6f11035e572f08bc20f

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

---
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[Aleksandr Nogikh]

#syz upstream

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