WARNING in usb_stor_msg_common/usb_submit_urb

Status: fixed on 2026/09/14 13:08
Reported-by: syzbot+22ea20ef3afb6785b122@syzkaller.appspotmail.com
Fix commit: 9c261a83131e usb-storage: ene_ub6250: fix race between scan work and probe
First crash: 42d, last: 19d
▶ ▼ Discussions (5)
Title Replies (including bot) Last reply
[PATCH v2] usb-storage: ene_ub6250: fix race between scan work and probe 2 (2) 2026/08/21 15:12
Re: [PATCH] usb-storage: ene_ub6250: serialize card type probe with scan work 1 (1) 2026/08/21 07:39
Re: [PATCH] usb-storage: ene_ub6250: serialize card type probe with scan work 1 (1) 2026/08/21 07:33
[PATCH] usb-storage: ene_ub6250: serialize card type probe with scan work 2 (2) 2026/08/21 05:58
[PATCH] usb-storage: prevent concurrent URB submission in usb_stor_msg_common 2 (2) 2026/08/20 14:25
▶ ▼ Similar bugs (3)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-6.6 WARNING in usb_stor_msg_common/usb_submit_urb origin:upstream -1 syz, C error 22 19d 282d 0/2 upstream: reported C repro on 2025/12/22 11:12
linux-5.15 WARNING in usb_stor_msg_common/usb_submit_urb -1 syz, C 17 18d 40d 0/3 upstream: reported C repro on 2026/08/22 04:14
upstream WARNING in usb_stor_msg_common/usb_submit_urb prio:high usb usb-storage -1 syz, C error 3349 10d 641d 0/29 upstream: reported C repro on 2024/12/29 09:01

Sample crash report:
------------[ cut here ]------------
URB ffff888056c93f00 submitted while active
WARNING: CPU: 1 PID: 4326 at drivers/usb/core/urb.c:379 usb_submit_urb+0xfb8/0x18d0 drivers/usb/core/urb.c:379
Modules linked in:
CPU: 1 PID: 4326 Comm: kworker/1:6 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events_freezable usb_stor_scan_dwork
RIP: 0010:usb_submit_urb+0xfb8/0x18d0 drivers/usb/core/urb.c:379
Code: 2e 8b 44 89 ea e8 a9 99 fe 03 e9 bb fb ff ff e8 ae c2 56 fb c6 05 9b 34 e1 07 01 48 c7 c7 20 f2 2e 8b 48 89 de e8 e8 49 22 fb <0f> 0b e9 be f0 ff ff e8 8c c2 56 fb eb 1f e8 85 c2 56 fb 44 8b 64
RSP: 0018:ffffc90004bc79d8 EFLAGS: 00010246
RAX: 291a6293e612ba00 RBX: ffff888056c93f00 RCX: ffff88801cbc0000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000002
RBP: ffffc90004bc7b98 R08: ffffc90004bc7667 R09: 1ffff92000978ecc
R10: dffffc0000000000 R11: fffff52000978ecd R12: 0000000000000c00
R13: ffff88807adecee0 R14: ffff888056c93f08 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efd28fd3d58 CR3: 000000007ea58000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 usb_stor_msg_common+0x29f/0x500 drivers/usb/storage/transport.c:143
 usb_stor_control_msg drivers/usb/storage/transport.c:205 [inline]
 usb_stor_Bulk_max_lun+0x2f9/0x5b0 drivers/usb/storage/transport.c:1081
 usb_stor_scan_dwork+0xf0/0x260 drivers/usb/storage/usb.c:906
 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 (22):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2026/09/11 18:09 linux-6.1.y cf82dcca9634 b6a5eeb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/11 18:09 linux-6.1.y cf82dcca9634 b6a5eeb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/11 18:08 linux-6.1.y cf82dcca9634 b6a5eeb7 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 04:17 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 04:17 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 02:48 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 02:48 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 02:43 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 02:42 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 02:41 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 02:26 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/10 02:25 linux-6.1.y cf82dcca9634 4e8b1cc6 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/09 12:08 linux-6.1.y cf82dcca9634 8387c273 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/09 12:07 linux-6.1.y cf82dcca9634 8387c273 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/08 13:11 linux-6.1.y cf82dcca9634 680aa3e1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/07 20:39 linux-6.1.y cf82dcca9634 680aa3e1 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/04 04:17 linux-6.1.y cf82dcca9634 801f0966 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/04 04:17 linux-6.1.y cf82dcca9634 801f0966 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/09/01 17:54 linux-6.1.y d64a499eea6b 587f6b29 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/08/20 21:47 linux-6.1.y 7e6e67054721 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/08/20 01:05 linux-6.1.y 7e6e67054721 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
2026/08/19 13:18 linux-6.1.y e4f7d8be268e 1e72964b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in usb_stor_msg_common/usb_submit_urb
* Struck through repros no longer work on HEAD.