Hello,
syzbot found the following issue on:
HEAD commit: eac8889a3a1c Linux 6.6.140
git tree: linux-6.6.y
console output:
https://syzkaller.appspot.com/x/log.txt?x=10db2536580000
kernel config:
https://syzkaller.appspot.com/x/.config?x=c5b35c4db8465904
dashboard link:
https://syzkaller.appspot.com/bug?extid=5dacccd741c850a77292
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image:
https://storage.googleapis.com/syzbot-assets/284081ee4b1a/disk-eac8889a.raw.xz
vmlinux:
https://storage.googleapis.com/syzbot-assets/6503c72409ee/vmlinux-eac8889a.xz
kernel image:
https://storage.googleapis.com/syzbot-assets/5e529dbebdcb/bzImage-eac8889a.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by:
syzbot+5daccc...@syzkaller.appspotmail.com
Registered IR keymap rc-empty
rc rc0: IgorPlug-USB IR Receiver as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0
input: IgorPlug-USB IR Receiver as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.0/rc/rc0/input9
------------[ cut here ]------------
usb 1-1: BOGUS control dir, pipe 80000780 doesn't match bRequestType 68
WARNING: CPU: 1 PID: 787 at drivers/usb/core/urb.c:413 usb_submit_urb+0x10ac/0x17d0 drivers/usb/core/urb.c:411
Modules linked in:
CPU: 1 PID: 787 Comm: kworker/1:2 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/18/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0x10ac/0x17d0 drivers/usb/core/urb.c:411
Code: df 0f b6 44 05 00 84 c0 0f 85 29 06 00 00 45 0f b6 45 00 48 c7 c7 40 62 6b 8b 48 8b 74 24 20 4c 89 fa 44 89 f1 e8 24 95 ee fa <0f> 0b 49 bc 00 00 00 00 00 fc ff df e9 96 f4 ff ff 89 e9 80 e1 07
RSP: 0018:ffffc90003a36e00 EFLAGS: 00010246
RAX: bba3dcd2a0ddbd00 RBX: ffff88802cf7bd00 RCX: 0000000000100000
RDX: ffffc9001793b000 RSI: 0000000000062061 RDI: 0000000000062062
RBP: 1ffff1100ea46148 R08: ffffc90003a36a07 R09: 1ffff92000746d40
R10: dffffc0000000000 R11: fffff52000746d41 R12: dffffc0000000000
R13: ffff888075230a40 R14: 0000000080000780 R15: ffff88803116ddc0
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffebf210d94 CR3: 000000007d5cc000 CR4: 00000000003506e0
Call Trace:
<TASK>
igorplugusb_cmd drivers/media/rc/igorplugusb.c:127 [inline]
igorplugusb_probe+0x812/0xc60 drivers/media/rc/igorplugusb.c:225
usb_probe_interface+0x5c9/0xb20 drivers/usb/core/driver.c:396
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x25b/0xb20 drivers/base/dd.c:658
__driver_probe_device+0x1ef/0x390 drivers/base/dd.c:820
driver_probe_device+0x4f/0x420 drivers/base/dd.c:850
__device_attach_driver+0x2ca/0x510 drivers/base/dd.c:978
bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459
__device_attach+0x2c2/0x420 drivers/base/dd.c:1050
bus_probe_device+0x180/0x260 drivers/base/bus.c:534
device_add+0x88e/0xc50 drivers/base/core.c:3698
usb_set_configuration+0x1a79/0x20c0 drivers/usb/core/message.c:2265
usb_generic_driver_probe+0x8d/0x150 drivers/usb/core/generic.c:238
usb_probe_device+0x13d/0x270 drivers/usb/core/driver.c:293
call_driver_probe drivers/base/dd.c:-1 [inline]
really_probe+0x25b/0xb20 drivers/base/dd.c:658
__driver_probe_device+0x1ef/0x390 drivers/base/dd.c:820
driver_probe_device+0x4f/0x420 drivers/base/dd.c:850
__device_attach_driver+0x2ca/0x510 drivers/base/dd.c:978
bus_for_each_drv+0x252/0x2e0 drivers/base/bus.c:459
__device_attach+0x2c2/0x420 drivers/base/dd.c:1050
bus_probe_device+0x180/0x260 drivers/base/bus.c:534
device_add+0x88e/0xc50 drivers/base/core.c:3698
usb_new_device+0xa3c/0x1660 drivers/usb/core/hub.c:2660
hub_port_connect drivers/usb/core/hub.c:5529 [inline]
hub_port_connect_change drivers/usb/core/hub.c:5669 [inline]
port_event drivers/usb/core/hub.c:5833 [inline]
hub_event+0x29bf/0x49f0 drivers/usb/core/hub.c:5915
process_one_work kernel/workqueue.c:2653 [inline]
process_scheduled_works+0xa5d/0x15d0 kernel/workqueue.c:2730
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2811
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
---
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