WARNING in port100_send_cmd_async/usb_submit_urb (3)

Status: upstream: reported C repro on 2026/08/05 22:43
Subsystems: nfc
[Documentation on labels]
Reported-by: syzbot+89f5f8143d8e62af2b61@syzkaller.appspotmail.com
First crash: 3d03h, last: 2d16h
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ID Workflow Result Correct Bug Created Started Finished Revision
3fa6accd assessment-security 💥 WARNING in port100_send_cmd_async/usb_submit_urb (3) 2026/08/05 00:08 2026/08/05 00:08 2026/08/05 00:08 d4abbeac
Discussions (1)
Title Replies (including bot) Last reply
[syzbot] [nfc?] WARNING in port100_send_cmd_async/usb_submit_urb (3) 0 (1) 2026/08/05 22:43
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 2444d 2585d 15/29 fixed on 2019/12/10 22:36
linux-6.1 WARNING in port100_send_cmd_async/usb_submit_urb -1 syz, C 44 2d14h 2d21h 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 1773d 2404d 0/29 auto-obsoleted due to no activity on 2023/01/18 12:10
linux-6.6 WARNING in port100_send_cmd_async/usb_submit_urb -1 28 2d14h 2d20h 0/2 upstream: reported on 2026/08/04 20:48
linux-5.15 WARNING in port100_send_cmd_async/usb_submit_urb -1 32 2d14h 2d22h 0/3 upstream: reported on 2026/08/04 18:24

Sample crash report:
usb 5-1: Product: syz
usb 5-1: Manufacturer: syz
usb 5-1: SerialNumber: syz
------------[ cut here ]------------
URB ffff88803435b300 submitted while active
WARNING: drivers/usb/core/urb.c:379 at usb_submit_urb+0x1689/0x19b0 drivers/usb/core/urb.c:379, CPU#1: kworker/1:0/29
Modules linked in:
CPU: 1 UID: 0 PID: 29 Comm: kworker/1:0 Not tainted syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014
Workqueue: usb_hub_wq hub_event
RIP: 0010:usb_submit_urb+0x168c/0x19b0 drivers/usb/core/urb.c:379
Code: 00 48 8b 04 24 48 8b 90 b0 00 00 00 e9 70 ff ff ff bb ed ff ff ff e9 ac f1 ff ff e8 9e ed 89 fa 48 8d 3d a7 6d af 09 48 89 de <67> 48 0f b9 3a bb f0 ff ff ff e9 8e f1 ff ff c7 44 24 30 00 00 00
RSP: 0018:ffffc90000686e38 EFLAGS: 00010293
RAX: 0000000000000000 RBX: ffff88803435b300 RCX: 1ffff1100686b7d1
RDX: ffff88801f6c2540 RSI: ffff88803435b300 RDI: ffffffff912fe4f0
RBP: ffff8880350c0c68 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880350c0c38
R13: ffff88802ef4fe00 R14: ffff88803823bcc0 R15: ffff8880350c0c60
FS:  0000000000000000(0000) GS:ffff8880d5ed8000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33463fff CR3: 000000003f4ce000 CR4: 0000000000352ef0
Call Trace:
 <TASK>
 port100_send_frame_async drivers/nfc/port100.c:783 [inline]
 port100_send_cmd_async+0x7f7/0xc60 drivers/nfc/port100.c:879
 port100_send_cmd_sync drivers/nfc/port100.c:919 [inline]
 port100_set_command_type drivers/nfc/port100.c:990 [inline]
 port100_probe+0xb4c/0x1190 drivers/nfc/port100.c:1555
 usb_probe_interface+0x303/0x8f0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 usb_set_configuration+0xd97/0x1c60 drivers/usb/core/message.c:2268
 usb_generic_driver_probe+0xa1/0xe0 drivers/usb/core/generic.c:250
 usb_probe_device+0xef/0x400 drivers/usb/core/driver.c:291
 call_driver_probe drivers/base/dd.c:628 [inline]
 really_probe+0x241/0xa60 drivers/base/dd.c:706
 __driver_probe_device+0x20e/0x450 drivers/base/dd.c:868
 driver_probe_device+0x4a/0x140 drivers/base/dd.c:898
 __device_attach_driver+0x1df/0x320 drivers/base/dd.c:1026
 bus_for_each_drv+0x159/0x1e0 drivers/base/bus.c:500
 __device_attach+0x1e4/0x4d0 drivers/base/dd.c:1098
 device_initial_probe+0xaf/0xd0 drivers/base/dd.c:1153
 bus_probe_device+0x64/0x160 drivers/base/bus.c:620
 device_add+0x121d/0x1970 drivers/base/core.c:3772
 usb_new_device.cold+0x685/0x115c drivers/usb/core/hub.c:2695
 hub_port_connect drivers/usb/core/hub.c:5567 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5707 [inline]
 port_event drivers/usb/core/hub.c:5871 [inline]
 hub_event+0x30a3/0x4a60 drivers/usb/core/hub.c:5953
 process_one_work+0xa23/0x1940 kernel/workqueue.c:3322
 process_scheduled_works kernel/workqueue.c:3405 [inline]
 worker_thread+0x5ef/0xe50 kernel/workqueue.c:3486
 kthread+0x370/0x450 kernel/kthread.c:436
 ret_from_fork+0x72b/0xd50 arch/x86/kernel/process.c:158
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
 </TASK>
----------------
Code disassembly (best guess):
   0:	00 48 8b             	add    %cl,-0x75(%rax)
   3:	04 24                	add    $0x24,%al
   5:	48 8b 90 b0 00 00 00 	mov    0xb0(%rax),%rdx
   c:	e9 70 ff ff ff       	jmp    0xffffff81
  11:	bb ed ff ff ff       	mov    $0xffffffed,%ebx
  16:	e9 ac f1 ff ff       	jmp    0xfffff1c7
  1b:	e8 9e ed 89 fa       	call   0xfa89edbe
  20:	48 8d 3d a7 6d af 09 	lea    0x9af6da7(%rip),%rdi        # 0x9af6dce
  27:	48 89 de             	mov    %rbx,%rsi
* 2a:	67 48 0f b9 3a       	ud1    (%edx),%rdi <-- trapping instruction
  2f:	bb f0 ff ff ff       	mov    $0xfffffff0,%ebx
  34:	e9 8e f1 ff ff       	jmp    0xfffff1c7
  39:	c7                   	.byte 0xc7
  3a:	44 24 30             	rex.R and $0x30,%al
  3d:	00 00                	add    %al,(%rax)

Crashes (307):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/08/04 16:03 upstream 848acc8ffe1b 3c5eaa21 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 15:34 upstream 848acc8ffe1b 3c5eaa21 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 14:41 upstream 848acc8ffe1b 3c5eaa21 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] ci-qemu-upstream WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 17:16 https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing 5d5fd841c346 d4abbeac .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci2-upstream-usb WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 15:21 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci 7235a3e71949 d4abbeac .config console log report syz / log C [disk image] [vmlinux] [kernel image] ci-upstream-gce-arm64 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/05 00:28 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 23:19 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 22:57 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 21:56 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:49 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-badwrites-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 17:52 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 16:58 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 15:20 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 14:54 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:38 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-smack-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 16:14 upstream 848acc8ffe1b d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-386 WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:25 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:22 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:22 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:21 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:21 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:21 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:21 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:19 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:19 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:18 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:17 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:16 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:16 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:14 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:14 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:14 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:14 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:12 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:12 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:11 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:11 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:11 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:10 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:10 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:10 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:09 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:09 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:09 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:09 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:07 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:07 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:07 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:07 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 13:03 upstream 848acc8ffe1b 3c5eaa21 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 20:20 linux-next cc2b5f627e8c d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 19:11 linux-next cc2b5f627e8c d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 18:17 linux-next cc2b5f627e8c d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in port100_send_cmd_async/usb_submit_urb
2026/08/04 15:49 linux-next cc2b5f627e8c d4abbeac .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-rust-kasan-gce WARNING in port100_send_cmd_async/usb_submit_urb
* Struck through repros no longer work on HEAD.