Hello, syzbot found the following issue on: HEAD commit: c068f40300a0 Add linux-next specific files for 20230217 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=16e298ef480000 kernel config: https://syzkaller.appspot.com/x/.config?x=e3e2944dd10f2e33 dashboard link: https://syzkaller.appspot.com/bug?extid=40ac6e73326e79ee8ecb compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0351f714d440/disk-c068f403.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0272dec605d9/vmlinux-c068f403.xz kernel image: https://storage.googleapis.com/syzbot-assets/9813c6350fa4/bzImage-c068f403.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+40ac6e73326e79ee8ecb@xxxxxxxxxxxxxxxxxxxxxxxxx usb 3-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3 usb 3-1: Product: syz usb 3-1: Manufacturer: syz usb 3-1: SerialNumber: syz usb 3-1: config 0 descriptor?? smsusb:smsusb_probe: board id=7, interface number 0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 897 at kernel/workqueue.c:3167 __flush_work+0x946/0xb60 kernel/workqueue.c:3167 Modules linked in: CPU: 0 PID: 897 Comm: kworker/0:2 Not tainted 6.2.0-rc8-next-20230217-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Workqueue: usb_hub_wq hub_event RIP: 0010:__flush_work+0x946/0xb60 kernel/workqueue.c:3167 Code: 00 48 c7 c6 7b 0d 54 81 48 c7 c7 40 79 79 8c e8 e0 0d 12 00 e9 6f fc ff ff e8 b6 85 30 00 0f 0b e9 63 fc ff ff e8 aa 85 30 00 <0f> 0b 45 31 ed e9 54 fc ff ff e8 eb 14 82 00 e9 3e fb ff ff e8 91 RSP: 0018:ffffc90005336c00 EFLAGS: 00010206 RAX: 0000000000036840 RBX: ffff88803f4480e8 RCX: ffffc90014d11000 RDX: 0000000000040000 RSI: ffffffff81540db6 RDI: 0000000000000001 RBP: ffffc90005336d98 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: ffff88803f4480e8 R13: 0000000000000001 R14: 0000000000000001 R15: ffff88803f448100 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9f02070edb CR3: 00000000283f5000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> __cancel_work_timer+0x3f9/0x570 kernel/workqueue.c:3261 smsusb_stop_streaming drivers/media/usb/siano/smsusb.c:182 [inline] smsusb_term_device+0xef/0x300 drivers/media/usb/siano/smsusb.c:344 smsusb_init_device+0xb6a/0xd10 drivers/media/usb/siano/smsusb.c:419 smsusb_probe+0x5b3/0x10b0 drivers/media/usb/siano/smsusb.c:567 usb_probe_interface+0x30f/0x960 drivers/usb/core/driver.c:396 call_driver_probe drivers/base/dd.c:552 [inline] really_probe+0x240/0xca0 drivers/base/dd.c:631 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:768 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:798 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:926 bus_for_each_drv+0x149/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:998 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x11c4/0x1c50 drivers/base/core.c:3589 usb_set_configuration+0x10ee/0x1af0 drivers/usb/core/message.c:2171 usb_generic_driver_probe+0xcf/0x130 drivers/usb/core/generic.c:238 usb_probe_device+0xd8/0x2c0 drivers/usb/core/driver.c:293 call_driver_probe drivers/base/dd.c:552 [inline] really_probe+0x240/0xca0 drivers/base/dd.c:631 __driver_probe_device+0x1df/0x4d0 drivers/base/dd.c:768 driver_probe_device+0x4c/0x1a0 drivers/base/dd.c:798 __device_attach_driver+0x1d4/0x2e0 drivers/base/dd.c:926 bus_for_each_drv+0x149/0x1d0 drivers/base/bus.c:457 __device_attach+0x1e4/0x4b0 drivers/base/dd.c:998 bus_probe_device+0x17c/0x1c0 drivers/base/bus.c:532 device_add+0x11c4/0x1c50 drivers/base/core.c:3589 usb_new_device+0xcb2/0x19d0 drivers/usb/core/hub.c:2575 hub_port_connect drivers/usb/core/hub.c:5407 [inline] hub_port_connect_change drivers/usb/core/hub.c:5551 [inline] port_event drivers/usb/core/hub.c:5711 [inline] hub_event+0x2d9e/0x4e40 drivers/usb/core/hub.c:5793 process_one_work+0x9bf/0x1820 kernel/workqueue.c:2390 worker_thread+0x669/0x1090 kernel/workqueue.c:2537 kthread+0x2e8/0x3a0 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:308 </TASK> --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
