bisecting fixing commit since 3dbdb38e286903ec220aaf1fb29a8d94297da246
building syzkaller on 1b20171a857edaeb6232e42ae1e0b783d4c5f666
testing commit 3dbdb38e286903ec220aaf1fb29a8d94297da246
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: cd14d163160bff9b3ad4b3b970e08766dad0c93626acfb0f8ee123053d9a9911
all runs: crashed: WARNING: ODEBUG bug in smsusb_term_device
testing current HEAD 0840a7914caa14315a3191178a9f72c742477860
testing commit 0840a7914caa14315a3191178a9f72c742477860
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 191a6352ff1a6844c8454646b46057e7d405838fc05fb466e77da70f928e5f61
all runs: crashed: WARNING: ODEBUG bug in smsusb_term_device
revisions tested: 2, total time: 20m46.508862247s (build: 13m21.84998248s, test: 6m28.982754626s)
the crash still happens on HEAD
commit msg: Merge tag 'char-misc-5.19-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
crash: WARNING: ODEBUG bug in smsusb_term_device
smsusb:smsusb_init_device: smscore_start_device(...) failed
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: work_struct hint: do_submit_urb+0x0/0x3e0 drivers/media/usb/siano/smsusb.c:146
WARNING: CPU: 0 PID: 3660 at lib/debugobjects.c:502 debug_print_object+0x16e/0x250 lib/debugobjects.c:502
Modules linked in:
CPU: 0 PID: 3660 Comm: kworker/0:4 Not tainted 5.19.0-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:debug_print_object+0x16e/0x250 lib/debugobjects.c:502
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 20 ae 43 89 4c 89 ee 48 c7 c7 00 a2 43 89 e8 4e bc b7 04 <0f> 0b 83 05 55 af 2b 09 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc90002d76db0 EFLAGS: 00010086
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000004 RDI: fffff520005aeda8
RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880b9e2792b
R10: ffffed10173c4f25 R11: 0000000000000001 R12: ffffffff88eac660
R13: ffffffff8943a6e0 R14: ffffffff81440650 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f989b835130 CR3: 0000000070755000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __debug_check_no_obj_freed lib/debugobjects.c:989 [inline]
 debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1020
 kfree+0xd6/0x310 mm/slab.c:3795
 smsusb_term_device+0x173/0x2a0 drivers/media/usb/siano/smsusb.c:350
 smsusb_init_device+0x95b/0x9ce drivers/media/usb/siano/smsusb.c:487
 smsusb_probe+0xbfd/0xc95 drivers/media/usb/siano/smsusb.c:566
 usb_probe_interface+0x274/0x6a0 drivers/usb/core/driver.c:396
 call_driver_probe drivers/base/dd.c:555 [inline]
 really_probe+0x1c1/0xa40 drivers/base/dd.c:634
 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:764
 driver_probe_device+0x44/0x110 drivers/base/dd.c:794
 __device_attach_driver+0x185/0x250 drivers/base/dd.c:917
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
 __device_attach+0x19e/0x440 drivers/base/dd.c:989
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
 device_add+0xa14/0x1b80 drivers/base/core.c:3417
 usb_set_configuration+0xc91/0x1840 drivers/usb/core/message.c:2170
 usb_generic_driver_probe+0x74/0xa0 drivers/usb/core/generic.c:238
 usb_probe_device+0x95/0x240 drivers/usb/core/driver.c:293
 call_driver_probe drivers/base/dd.c:555 [inline]
 really_probe+0x1c1/0xa40 drivers/base/dd.c:634
 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:764
 driver_probe_device+0x44/0x110 drivers/base/dd.c:794
 __device_attach_driver+0x185/0x250 drivers/base/dd.c:917
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
 __device_attach+0x19e/0x440 drivers/base/dd.c:989
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
 device_add+0xa14/0x1b80 drivers/base/core.c:3417
 usb_new_device.cold+0x5d1/0xeeb drivers/usb/core/hub.c:2566
 hub_port_connect drivers/usb/core/hub.c:5363 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5507 [inline]
 port_event drivers/usb/core/hub.c:5663 [inline]
 hub_event+0x114d/0x39d0 drivers/usb/core/hub.c:5745
 process_one_work+0x865/0x13d0 kernel/workqueue.c:2289
 worker_thread+0x598/0xec0 kernel/workqueue.c:2436
 kthread+0x299/0x340 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
 </TASK>