WARNING in port100_send_cmd_async/usb_submit_urb

Status: upstream: reported C repro on 2026/08/04 19:31
Reported-by: syzbot+18ac17c530797f584345@syzkaller.appspotmail.com
First crash: 5d04h, last: 3h08m
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
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 309 11h36m 4d00h 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 16h54m 5d02h 0/2 upstream: reported C repro on 2026/08/04 20:48
linux-5.15 WARNING in port100_send_cmd_async/usb_submit_urb -1 syz, C 33 1d19h 5d05h 0/3 upstream: reported C repro on 2026/08/04 18:24

Sample crash report:
usb 1-1: New USB device found, idVendor=054c, idProduct=06c1, bcdDevice= 1.00
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 ffff8881401a9e00 submitted while active
WARNING: CPU: 0 PID: 4320 at drivers/usb/core/urb.c:379 usb_submit_urb+0xfb8/0x18d0 drivers/usb/core/urb.c:379
Modules linked in:
CPU: 0 PID: 4320 Comm: kworker/0:3 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+0xfb8/0x18d0 drivers/usb/core/urb.c:379
Code: 2e 8b 44 89 ea e8 49 d3 fd 03 e9 bb fb ff ff e8 de 18 57 fb c6 05 32 8d e1 07 01 48 c7 c7 40 e8 2e 8b 48 89 de e8 18 a3 22 fb <0f> 0b e9 be f0 ff ff e8 bc 18 57 fb eb 1f e8 b5 18 57 fb 44 8b 64
RSP: 0018:ffffc90004026d80 EFLAGS: 00010246
RAX: 2ec98c15c2d36500 RBX: ffff8881401a9e00 RCX: ffff88801cbd3c00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 1ffff1100f07b30a R08: ffffc90004026a87 R09: 1ffff92000804d50
R10: dffffc0000000000 R11: fffff52000804d51 R12: 0000000000000cc0
R13: 1ffff1100f07b309 R14: ffff8881401a9e08 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efdd1870000 CR3: 0000000075607000 CR4: 00000000003506f0
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+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3712
 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+0x24a/0xb40 drivers/base/dd.c:638
 __driver_probe_device+0x1f5/0x390 drivers/base/dd.c:804
 driver_probe_device+0x4f/0x420 drivers/base/dd.c:834
 __device_attach_driver+0x2c6/0x510 drivers/base/dd.c:962
 bus_for_each_drv+0x184/0x210 drivers/base/bus.c:429
 __device_attach+0x2a7/0x480 drivers/base/dd.c:1034
 bus_probe_device+0xba/0x1d0 drivers/base/bus.c:489
 device_add+0xbcf/0x1050 drivers/base/core.c:3712
 usb_new_device+0xa01/0x15e0 drivers/usb/core/hub.c:2659
 hub_port_connect drivers/usb/core/hub.c:5517 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5657 [inline]
 port_event drivers/usb/core/hub.c:5817 [inline]
 hub_event+0x2b2f/0x5200 drivers/usb/core/hub.c:5899
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>

Crashes (46):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/09 20:23 linux-6.1.y e4f7d8be268e 5d63f80b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/09 19:13 linux-6.1.y e4f7d8be268e 5d63f80b .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:44 linux-6.1.y fb28aa725e05 d4abbeac .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:34 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:34 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:27 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:24 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:10 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:04 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 02:04 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 01:55 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 01:53 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 01:29 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 01:00 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:59 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:42 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:37 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:20 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:17 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:05 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:04 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:53 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:53 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:29 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:27 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:26 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:17 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:17 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:00 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 22:59 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 22:44 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 22:44 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 22:15 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 22:07 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 22:06 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:49 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:46 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:39 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:07 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 19:46 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 19:45 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 19:31 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 19:30 linux-6.1.y fb28aa725e05 d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
* Struck through repros no longer work on HEAD.