linux-kernel - [syzbot] Monthly usb report (Sep 2025)

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Message-ID: <68d3e687.a70a0220.4f78.0027.GAE@google.com>
Date: Wed, 24 Sep 2025 05:39:35 -0700
From: syzbot <syzbot+listaf472b258244e52aa817@...kaller.appspotmail.com>
To: linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org, 
	syzkaller-bugs@...glegroups.com
Subject: [syzbot] Monthly usb report (Sep 2025)

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

---
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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