[syzbot] Monthly usb report (Jul 2025)

[syzbot] Monthly usb report (Jul 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, 6 new issues were detected and 4 were fixed.
In total, 87 issues are still open and 387 have already been fixed.

Some of the still happening issues:

Ref  Crashes Repro Title
<1>  16230   Yes   KASAN: slab-use-after-free Read in hdm_disconnect
                   https://syzkaller.appspot.com/bug?extid=916742d5d24f6c254761
<2>  4773    Yes   KASAN: use-after-free Read in v4l2_fh_init
                   https://syzkaller.appspot.com/bug?extid=c025d34b8eaa54c571b8
<3>  2313    Yes   WARNING in usb_free_urb
                   https://syzkaller.appspot.com/bug?extid=b466336413a1fba398a5
<4>  1822    Yes   KASAN: use-after-free Read in v4l2_fh_open
                   https://syzkaller.appspot.com/bug?extid=b2391895514ed9ef4a8e
<5>  1393    Yes   KASAN: use-after-free Read in em28xx_init_extension (2)
                   https://syzkaller.appspot.com/bug?extid=99d6c66dbbc484f50e1c
<6>  1304    Yes   INFO: task hung in usbdev_open (2)
                   https://syzkaller.appspot.com/bug?extid=b73659f5bb96fac34820
<7>  1196    Yes   possible deadlock in input_inject_event
                   https://syzkaller.appspot.com/bug?extid=79c403850e6816dc39cf
<8>  859     Yes   WARNING in enable_work
                   https://syzkaller.appspot.com/bug?extid=7053fbd8757fecbbe492
<9>  804     Yes   KASAN: slab-out-of-bounds Read in mcp2221_raw_event
                   https://syzkaller.appspot.com/bug?extid=52c1a7d3e5b361ccd346
<10> 730     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.
syzbot engineers can be reached at syzkaller@googlegroups.com.

To disable reminders for individual bugs, reply with the following command:
#syz set <Ref> no-reminders

To change bug's subsystems, reply with:
#syz set <Ref> subsystems: new-subsystem

You may send multiple commands in a single email message.