bisecting fixing commit since b90e90f40b4ff23c753126008bf4713a42353af6
building syzkaller on 325a8dab43fe8af46c179dcb4e2426613440fe85
testing commit b90e90f40b4ff23c753126008bf4713a42353af6 with gcc (GCC) 10.2.1 20210217
kernel signature: e03749a1e5722c045bd2df7e9b070ca3bdf7908621040d231c7c05a5d07250f8
all runs: crashed: WARNING in mcba_usb_probe/usb_submit_urb
testing current HEAD 007b350a58754a93ca9fe50c498cc27780171153
testing commit 007b350a58754a93ca9fe50c498cc27780171153 with gcc (GCC) 10.2.1 20210217
kernel signature: 5af5d27ca2278c12a82f22e6a75768708076f41127dd329e19c9690679246422
all runs: crashed: WARNING in mcba_usb_probe/usb_submit_urb
revisions tested: 2, total time: 20m56.246383998s (build: 13m36.295285442s, test: 6m50.644085216s)
the crash still happens on HEAD
commit msg: Merge tag 'dlm-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm
crash: WARNING in mcba_usb_probe/usb_submit_urb
usb 4-1: config 0 descriptor??
------------[ cut here ]------------
usb 4-1: BOGUS urb xfer, pipe 3 != type 1
WARNING: CPU: 1 PID: 10138 at drivers/usb/core/urb.c:493 usb_submit_urb+0x9fb/0x1270 drivers/usb/core/urb.c:493
Modules linked in:
CPU: 1 PID: 10138 Comm: kworker/1:6 Not tainted 5.13.0-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 3f 73 23 ff 44 8b 44 24 10 44 89 f9 4c 89 ea 48 89 c6 48 c7 c7 80 6c 3e 89 e8 db c9 35 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:ffffc9000aad70c8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 000000000000008f RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff88fe80c0 RDI: fffff5200155ae0b
RBP: ffff888015bfc000 R08: 0000000000000001 R09: ffff8880b9f2ff07
R10: ffffed10173e5fe0 R11: 3a312d3420627375 R12: ffff888145a72f00
R13: ffff88800f877b90 R14: 0000000000000000 R15: 0000000000000003
FS:  0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff54d3c8a8 CR3: 0000000044bac000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 mcba_usb_start drivers/net/can/usb/mcba_usb.c:663 [inline]
 mcba_usb_probe+0x845/0xc40 drivers/net/can/usb/mcba_usb.c:859
 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
 really_probe+0x1fd/0xd10 drivers/base/dd.c:576
 driver_probe_device+0x21a/0x3b0 drivers/base/dd.c:763
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431
 __device_attach+0x1db/0x410 drivers/base/dd.c:938
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491
 device_add+0x9f0/0x1d60 drivers/base/core.c:3324
 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+0x95/0x240 drivers/usb/core/driver.c:293
 really_probe+0x1fd/0xd10 drivers/base/dd.c:576
 driver_probe_device+0x21a/0x3b0 drivers/base/dd.c:763
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:431
 __device_attach+0x1db/0x410 drivers/base/dd.c:938
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:491
 device_add+0x9f0/0x1d60 drivers/base/core.c:3324
 usb_new_device.cold+0x69a/0xee1 drivers/usb/core/hub.c:2558
 hub_port_connect drivers/usb/core/hub.c:5278 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5418 [inline]
 port_event drivers/usb/core/hub.c:5564 [inline]
 hub_event+0x10a3/0x36c0 drivers/usb/core/hub.c:5646
 process_one_work+0x84c/0x13e0 kernel/workqueue.c:2276
 worker_thread+0x598/0x1040 kernel/workqueue.c:2422
 kthread+0x38b/0x460 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295