syzbot


WARNING in cm109_input_open/usb_submit_urb (2)

Status: upstream: reported on 2025/04/21 01:41
Reported-by: syzbot+6d5625d412e75b926ab9@syzkaller.appspotmail.com
First crash: 47d, last: 11d
Similar bugs (5)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in cm109_input_open/usb_submit_urb (2) input 2 547d 595d 0/28 auto-obsoleted due to no activity on 2024/03/17 05:41
linux-5.15 WARNING in cm109_input_open/usb_submit_urb 4 299d 354d 0/3 auto-obsoleted due to no activity on 2024/11/20 01:16
upstream WARNING in cm109_input_open/usb_submit_urb input usb syz unreliable error 2 974d 1485d 0/28 auto-obsoleted due to no activity on 2023/04/22 01:04
upstream WARNING in cm109_input_open/usb_submit_urb (3) usb input C error 62 4d14h 436d 0/28 upstream: reported C repro on 2024/03/27 14:52
linux-6.1 WARNING in cm109_input_open/usb_submit_urb 1 318d 318d 0/3 auto-obsoleted due to no activity on 2024/10/31 09:48

Sample crash report:
input: CM109 USB driver as /devices/platform/dummy_hcd.0/usb1/1-1/1-1:0.8/input/input5
------------[ cut here ]------------
URB ffff8880226d8100 submitted while active
WARNING: CPU: 0 PID: 1107 at drivers/usb/core/urb.c:378 usb_submit_urb+0x1057/0x1980 drivers/usb/core/urb.c:378
Modules linked in:
CPU: 0 PID: 1107 Comm: kworker/0:2 Not tainted 5.15.184-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0x1057/0x1980 drivers/usb/core/urb.c:378
Code: d3 a8 fb eb 53 e8 29 d3 a8 fb e9 54 f0 ff ff e8 1f d3 a8 fb c6 05 05 22 86 07 01 48 c7 c7 80 62 a4 8a 48 89 de e8 b9 79 c7 03 <0f> 0b e9 1f f0 ff ff e8 fd d2 a8 fb eb 20 e8 f6 d2 a8 fb 4c 8b 74
RSP: 0018:ffffc90004c16c40 EFLAGS: 00010246
RAX: 82751166b9f82c00 RBX: ffff8880226d8100 RCX: 0000000000100000
RDX: ffffc90012b4f000 RSI: 00000000000669bb RDI: 00000000000669bc
RBP: 000000000000000f R08: dffffc0000000000 R09: ffffed10172067a8
R10: ffffed10172067a8 R11: 1ffff110172067a7 R12: 0000000000000cc0
R13: dffffc0000000000 R14: ffff8880226d8108 R15: ffff888074372800
FS:  0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa014f85368 CR3: 000000006371b000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 cm109_input_open+0x1f7/0x460 drivers/input/misc/cm109.c:572
 input_open_device+0x16c/0x2e0 drivers/input/input.c:640
 kbd_connect+0xe9/0x130 drivers/tty/vt/keyboard.c:1581
 input_attach_handler drivers/input/input.c:1046 [inline]
 input_register_device+0xda7/0x1140 drivers/input/input.c:2429
 cm109_usb_probe+0x10e5/0x15b0 drivers/input/misc/cm109.c:806
 usb_probe_interface+0x5a0/0xaf0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
 bus_for_each_drv+0x175/0x200 drivers/base/bus.c:429
 __device_attach+0x29b/0x460 drivers/base/dd.c:979
 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
 device_add+0xa00/0xfb0 drivers/base/core.c:3412
 usb_set_configuration+0x1991/0x1fd0 drivers/usb/core/message.c:2165
 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x139/0x270 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x284/0xc80 drivers/base/dd.c:595
 __driver_probe_device+0x18c/0x330 drivers/base/dd.c:755
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:785
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:907
 bus_for_each_drv+0x175/0x200 drivers/base/bus.c:429
 __device_attach+0x29b/0x460 drivers/base/dd.c:979
 bus_probe_device+0xbc/0x1e0 drivers/base/bus.c:489
 device_add+0xa00/0xfb0 drivers/base/core.c:3412
 usb_new_device+0xd53/0x1640 drivers/usb/core/hub.c:2604
 hub_port_connect drivers/usb/core/hub.c:5467 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5607 [inline]
 port_event drivers/usb/core/hub.c:5753 [inline]
 hub_event+0x295c/0x4fa0 drivers/usb/core/hub.c:5835
 process_one_work+0x863/0x1000 kernel/workqueue.c:2310
 worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
 kthread+0x436/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/26 10:03 linux-5.15.y 98f47d0e9b8c 2d4582d0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in cm109_input_open/usb_submit_urb
2025/04/21 01:40 linux-5.15.y f7347f400572 2a20f901 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in cm109_input_open/usb_submit_urb
* Struck through repros no longer work on HEAD.