WARNING in port100_send_cmd_async/usb_submit_urb

Status: upstream: reported C repro on 2026/08/04 18:24
Reported-by: syzbot+f62394b2df7895a14882@syzkaller.appspotmail.com
First crash: 5d11h, last: 2d02h
Similar bugs (5)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING in port100_send_cmd_async/usb_submit_urb usb nfc -1 syz, C 83 2446d 2587d 15/29 fixed on 2019/12/10 22:36
linux-6.1 WARNING in port100_send_cmd_async/usb_submit_urb -1 syz, C 46 9h48m 5d10h 0/3 upstream: reported C repro on 2026/08/04 19:31
upstream WARNING in port100_send_cmd_async/usb_submit_urb (2) usb nfc -1 syz, C unreliable unreliable 1208 1775d 2406d 0/29 auto-obsoleted due to no activity on 2023/01/18 12:10
upstream WARNING in port100_send_cmd_async/usb_submit_urb (3) nfc prio:high -1 syz, C 311 2h40m 4d07h 0/29 upstream: reported C repro on 2026/08/05 22:43
linux-6.6 WARNING in port100_send_cmd_async/usb_submit_urb origin:upstream -1 syz, C 29 23h33m 5d09h 0/2 upstream: reported C repro on 2026/08/04 20:48

Sample crash report:
usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
usb 1-1: Product: syz
usb 1-1: Manufacturer: syz
usb 1-1: SerialNumber: syz
------------[ cut here ]------------
URB ffff888143792a00 submitted while active
WARNING: CPU: 1 PID: 4288 at drivers/usb/core/urb.c:378 usb_submit_urb+0xfba/0x18d0 drivers/usb/core/urb.c:378
Modules linked in:
CPU: 1 PID: 4288 Comm: kworker/1:7 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0xfba/0x18d0 drivers/usb/core/urb.c:378
Code: c5 8a 44 89 ea e8 c6 d8 d6 03 e9 f3 fb ff ff e8 5c c9 96 fb c6 05 e5 22 95 07 01 48 c7 c7 20 37 c5 8a 48 89 de e8 66 f6 d2 03 <0f> 0b e9 bc f0 ff ff e8 3a c9 96 fb eb 1f e8 33 c9 96 fb 44 8b 64
RSP: 0018:ffffc9000300eda0 EFLAGS: 00010246
RAX: a9a0a1570f19c400 RBX: ffff888143792a00 RCX: ffff88802a565940
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 1ffff1100451ad0a R08: ffff8880b9133d7f R09: 1ffff110172267af
R10: dffffc0000000000 R11: ffffed10172267b0 R12: 0000000000000cc0
R13: 1ffff1100451ad09 R14: ffff888143792a08 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b32563fff CR3: 000000007e689000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 port100_send_frame_async drivers/nfc/port100.c:783 [inline]
 port100_send_cmd_async+0x81c/0xc60 drivers/nfc/port100.c:879
 port100_send_cmd_sync drivers/nfc/port100.c:919 [inline]
 port100_set_command_type+0x1c4/0x380 drivers/nfc/port100.c:990
 port100_probe+0x9ea/0xdb0 drivers/nfc/port100.c:1570
 usb_probe_interface+0x5be/0xae0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x276/0xc70 drivers/base/dd.c:595
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:805
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:927
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:999
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3427
 usb_set_configuration+0x19d5/0x2030 drivers/usb/core/message.c:2223
 usb_generic_driver_probe+0x89/0x150 drivers/usb/core/generic.c:238
 usb_probe_device+0x126/0x250 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:-1 [inline]
 really_probe+0x276/0xc70 drivers/base/dd.c:595
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:775
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:805
 __device_attach_driver+0x2b0/0x500 drivers/base/dd.c:927
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:999
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3427
 usb_new_device+0x9f6/0x15d0 drivers/usb/core/hub.c:2632
 hub_port_connect drivers/usb/core/hub.c:5497 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5637 [inline]
 port_event drivers/usb/core/hub.c:5799 [inline]
 hub_event+0x2b8d/0x5260 drivers/usb/core/hub.c:5881
 process_one_work+0x867/0xff0 kernel/workqueue.c:2310
 worker_thread+0xad7/0x12a0 kernel/workqueue.c:2457
 kthread+0x42e/0x520 kernel/kthread.c:334
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
 </TASK>

Crashes (33):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/08 03:41 linux-5.15.y aabd761612db e4ef95d6 .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:22 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:16 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:15 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 01:18 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 01:17 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 01:03 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 01:01 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:59 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:58 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:50 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:49 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:37 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:32 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:10 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:08 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:08 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:07 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 22:38 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 21:48 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 21:16 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 21:00 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 21:00 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:52 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:31 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:31 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 19:59 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 19:57 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 19:05 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 18:56 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 18:56 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 18:27 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 18:24 linux-5.15.y 6e2fd6534337 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan WARNING in port100_send_cmd_async/usb_submit_urb
* Struck through repros no longer work on HEAD.