bisecting fixing commit since d7c5303fbc8ac874ae3e597a5a0d3707dc0230b4
building syzkaller on 858ea628800647d5e5b68b11441e42b8ef5652c1
testing commit d7c5303fbc8ac874ae3e597a5a0d3707dc0230b4
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: d8165f52680818610eddee463aa8797ab98dff7fdf644d4388bca592bd487cbb
all runs: crashed: WARNING: ODEBUG bug in smsusb_term_device
testing current HEAD a4849f6000e29235a2707f22e39da6b897bb9543
testing commit a4849f6000e29235a2707f22e39da6b897bb9543
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: 2f8bc26818d13d3ffd857bb2d152744f6aa3eb21dee6f0f5ea44da44810b056c
all runs: crashed: WARNING: ODEBUG bug in smsusb_term_device
revisions tested: 2, total time: 20m22.378079196s (build: 12m46.855932283s, test: 6m46.387307215s)
the crash still happens on HEAD
commit msg: Merge tag 'drm-fixes-2021-11-26' of git://anongit.freedesktop.org/drm/drm
crash: WARNING: ODEBUG bug in smsusb_term_device
smsmdtv:smscore_start_device: set device mode failed , rc -22
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: 1 PID: 9136 at lib/debugobjects.c:505 debug_print_object+0x16e/0x250 lib/debugobjects.c:505
Modules linked in:
CPU: 1 PID: 9136 Comm: kworker/1:8 Not tainted 5.16.0-rc2-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:505
Code: ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 af 00 00 00 48 8b 14 dd 00 74 21 89 4c 89 ee 48 c7 c7 00 68 21 89 e8 2c 78 aa 04 <0f> 0b 83 05 05 d7 f5 08 01 48 83 c4 18 5b 5d 41 5c 41 5d 41 5e c3
RSP: 0018:ffffc9000c656d50 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffffff892163e0 RDI: fffff520018cad9c
RBP: 0000000000000001 R08: 0000000000000001 R09: ffff8880b9f33fc7
R10: ffffed10173e67f8 R11: 203a47554245444f R12: ffffffff88ca7ea0
R13: ffffffff89216e40 R14: ffffffff8143a660 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005644f0caa160 CR3: 00000000188cc000 CR4: 0000000000350ee0
Call Trace:
 <TASK>
 __debug_check_no_obj_freed lib/debugobjects.c:992 [inline]
 debug_check_no_obj_freed+0x301/0x420 lib/debugobjects.c:1023
 slab_free_hook mm/slub.c:1698 [inline]
 slab_free_freelist_hook+0xeb/0x1c0 mm/slub.c:1749
 slab_free mm/slub.c:3513 [inline]
 kfree+0xf6/0x560 mm/slub.c:4561
 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:517 [inline]
 really_probe+0x1c2/0xb60 drivers/base/dd.c:596
 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:751
 driver_probe_device+0x44/0x110 drivers/base/dd.c:781
 __device_attach_driver+0x185/0x250 drivers/base/dd.c:898
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
 __device_attach+0x1db/0x410 drivers/base/dd.c:969
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
 device_add+0xa57/0x1b80 drivers/base/core.c:3394
 usb_set_configuration+0xa66/0x18b0 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:517 [inline]
 really_probe+0x1c2/0xb60 drivers/base/dd.c:596
 __driver_probe_device+0x2a6/0x460 drivers/base/dd.c:751
 driver_probe_device+0x44/0x110 drivers/base/dd.c:781
 __device_attach_driver+0x185/0x250 drivers/base/dd.c:898
 bus_for_each_drv+0x11e/0x1a0 drivers/base/bus.c:427
 __device_attach+0x1db/0x410 drivers/base/dd.c:969
 bus_probe_device+0x19d/0x250 drivers/base/bus.c:487
 device_add+0xa57/0x1b80 drivers/base/core.c:3394
 usb_new_device.cold+0x5cf/0xee8 drivers/usb/core/hub.c:2563
 hub_port_connect drivers/usb/core/hub.c:5348 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5488 [inline]
 port_event drivers/usb/core/hub.c:5634 [inline]
 hub_event+0x10a3/0x36c0 drivers/usb/core/hub.c:5716
 process_one_work+0x87f/0x1450 kernel/workqueue.c:2298
 worker_thread+0x598/0x1040 kernel/workqueue.c:2445
 kthread+0x3ab/0x480 kernel/kthread.c:327
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>