bisecting fixing commit since 291009f656e8eaebbdfd3a8d99f6b190a9ce9deb
building syzkaller on a5f86b15f4f60350198e4b98fb7451d45d38a186
testing commit 291009f656e8eaebbdfd3a8d99f6b190a9ce9deb with gcc (GCC) 10.2.1 20210217
kernel signature: 84293c503d70ba330eb747ecf755802154629e6c70c64af49c773d9af3b8f5cc
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
testing current HEAD 6417f03132a6952cd17ddd8eaddbac92b61b17e0
testing commit 6417f03132a6952cd17ddd8eaddbac92b61b17e0 with gcc (GCC) 10.2.1 20210217
kernel signature: 1f791ff025f9d46b33d8aca07a1f82f3f635aa1df7de41558ee3b717a17784ef
all runs: crashed: WARNING in cxacru_cm/usb_submit_urb
revisions tested: 2, total time: 20m54.726781822s (build: 13m22.603235005s, test: 6m55.197841223s)
the crash still happens on HEAD
commit msg: module: remove never implemented MODULE_SUPPORTED_DEVICE
crash: WARNING in cxacru_cm/usb_submit_urb
------------[ cut here ]------------
usb 2-1: BOGUS urb xfer, pipe 1 != type 3
WARNING: CPU: 0 PID: 2970 at drivers/usb/core/urb.c:493 usb_submit_urb+0x9fb/0x1270 drivers/usb/core/urb.c:493
Modules linked in:

CPU: 0 PID: 2970 Comm: kworker/0:2 Not tainted 5.12.0-rc3-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event

RIP: 0010:usb_submit_urb+0x9fb/0x1270 drivers/usb/core/urb.c:493
Code: 00 4c 89 5c 24 18 44 89 44 24 10 e8 9f aa 25 ff 44 8b 44 24 10 44 89 f9 4c 89 ea 48 89 c6 48 c7 c7 60 c8 3a 89 e8 ac 37 32 03 <0f> 0b 4c 8b 5c 24 18 e9 bd fa ff ff 48 8d 7d 1c 48 ba 00 00 00 00
RSP: 0018:ffffc900020eef30 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff88fb9680 RDI: fffff5200041ddd8
RBP: ffff88802e3ff000 R08: 0000000000000001 R09: ffff8880ba0301a7
R10: ffffed1017406034 R11: 0000000000000001 R12: ffff88801a6ede00
R13: ffff8880113ff7a8 R14: 0000000000000001 R15: 0000000000000001
FS:  0000000000000000(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6a6092b000 CR3: 00000000123ca000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 cxacru_cm+0x37c/0x780 drivers/usb/atm/cxacru.c:649
 cxacru_card_status+0x1c/0xc0 drivers/usb/atm/cxacru.c:760
 cxacru_bind+0x728/0x1260 drivers/usb/atm/cxacru.c:1209
 usbatm_usb_probe+0x2be/0x1970 drivers/usb/atm/usbatm.c:1055
 cxacru_usb_probe+0xc3/0x1c0 drivers/usb/atm/cxacru.c:1363
 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
 really_probe+0x1fd/0xc60 drivers/base/dd.c:554
 driver_probe_device+0x1ed/0x380 drivers/base/dd.c:740
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431
 __device_attach+0x1db/0x400 drivers/base/dd.c:914
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491
 device_add+0x9eb/0x1ad0 drivers/base/core.c:3242
 usb_set_configuration+0x9fc/0x1750 drivers/usb/core/message.c:2164
 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
 usb_probe_device+0x98/0x240 drivers/usb/core/driver.c:293
 really_probe+0x1fd/0xc60 drivers/base/dd.c:554
 driver_probe_device+0x1ed/0x380 drivers/base/dd.c:740
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431
 __device_attach+0x1db/0x400 drivers/base/dd.c:914
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491
 device_add+0x9eb/0x1ad0 drivers/base/core.c:3242
 usb_new_device.cold+0x69a/0xee1 drivers/usb/core/hub.c:2555
 hub_port_connect drivers/usb/core/hub.c:5223 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5363 [inline]
 port_event drivers/usb/core/hub.c:5509 [inline]
 hub_event+0x10a3/0x36b0 drivers/usb/core/hub.c:5591
 process_one_work+0x84c/0x13b0 kernel/workqueue.c:2275
 worker_thread+0x598/0xf80 kernel/workqueue.c:2421
 kthread+0x36f/0x450 kernel/kthread.c:292
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:294
irq event stamp: 638851
hardirqs last  enabled at (638883): [<ffffffff88408faf>] __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
hardirqs last  enabled at (638883): [<ffffffff88408faf>] _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:199
hardirqs last disabled at (638908): [<ffffffff883f98bf>] __schedule+0x118f/0x2160 kernel/sched/core.c:4972
softirqs last  enabled at (639014): [<ffffffff813e0ab4>] invoke_softirq kernel/softirq.c:221 [inline]
softirqs last  enabled at (639014): [<ffffffff813e0ab4>] __irq_exit_rcu kernel/softirq.c:422 [inline]
softirqs last  enabled at (639014): [<ffffffff813e0ab4>] irq_exit_rcu+0x134/0x200 kernel/softirq.c:434