syzbot


WARNING: ODEBUG bug in usbhid_disconnect

Status: closed as invalid on 2019/08/19 12:27
Subsystems: input usb
[Documentation on labels]
First crash: 1711d, last: 1710d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream WARNING: ODEBUG bug in usbhid_disconnect (2) input usb C 48 1672d 1694d 13/26 fixed on 2019/10/15 23:40

Sample crash report:
usb 3-1: USB disconnect, device number 115
------------[ cut here ]------------
ODEBUG: free active (active state 0) object type: timer_list hint: hid_retry_timeout+0x0/0xd0 drivers/hid/usbhid/hid-core.c:712
WARNING: CPU: 0 PID: 2721 at lib/debugobjects.c:481 debug_print_object+0x160/0x250 lib/debugobjects.c:481
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 2721 Comm: kworker/0:3 Not tainted 5.3.0-rc4+ #26
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: usb_hub_wq hub_event
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0xca/0x13e lib/dump_stack.c:113
 panic+0x2a3/0x6da kernel/panic.c:219
 __warn.cold+0x20/0x4a kernel/panic.c:576
 report_bug+0x262/0x2a0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:179 [inline]
 fixup_bug arch/x86/kernel/traps.c:174 [inline]
 do_error_trap+0x12b/0x1e0 arch/x86/kernel/traps.c:272
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:291
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028
RIP: 0010:debug_print_object+0x160/0x250 lib/debugobjects.c:481
Code: dd c0 ee da 85 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 bf 00 00 00 48 8b 14 dd c0 ee da 85 48 c7 c7 00 e4 da 85 e8 e5 d5 31 ff <0f> 0b 83 05 4b 06 a8 05 01 48 83 c4 20 5b 5d 41 5c 41 5d c3 48 89
RSP: 0018:ffff8881af4c7718 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 000000000000be98 RSI: ffffffff81288cfd RDI: ffffed1035e98ed5
RBP: 0000000000000001 R08: ffff8881af4b8000 R09: ffffed103b645d58
R10: ffffed103b645d57 R11: ffff8881db22eabf R12: ffffffff86d0dc60
R13: ffffffff812e7c70 R14: ffff8881cc2968c8 R15: ffff8881cb6ff818
 __debug_check_no_obj_freed lib/debugobjects.c:963 [inline]
 debug_check_no_obj_freed+0x2df/0x443 lib/debugobjects.c:994
 free_pages_prepare mm/page_alloc.c:1174 [inline]
 __free_pages_ok+0x222/0x1d70 mm/page_alloc.c:1420
 usbhid_disconnect+0xab/0xd0 drivers/hid/usbhid/hid-core.c:1414
 usb_unbind_interface+0x1bd/0x8a0 drivers/usb/core/driver.c:423
 __device_release_driver drivers/base/dd.c:1134 [inline]
 device_release_driver_internal+0x42f/0x500 drivers/base/dd.c:1165
 bus_remove_device+0x2dc/0x4a0 drivers/base/bus.c:556
 device_del+0x420/0xb10 drivers/base/core.c:2339
 usb_disable_device+0x211/0x690 drivers/usb/core/message.c:1237
 usb_disconnect+0x284/0x8d0 drivers/usb/core/hub.c:2199
 hub_port_connect drivers/usb/core/hub.c:4949 [inline]
 hub_port_connect_change drivers/usb/core/hub.c:5213 [inline]
 port_event drivers/usb/core/hub.c:5359 [inline]
 hub_event+0x1454/0x3640 drivers/usb/core/hub.c:5441
 process_one_work+0x92b/0x1530 kernel/workqueue.c:2269
 worker_thread+0x96/0xe20 kernel/workqueue.c:2415
 kthread+0x318/0x420 kernel/kthread.c:255
 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:352
Kernel Offset: disabled
Rebooting in 86400 seconds..

Crashes (4):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/08/18 19:19 https://github.com/google/kasan.git usb-fuzzer d0847550e22d 55bf8926 .config console log report ci2-upstream-usb
2019/08/18 01:28 https://github.com/google/kasan.git usb-fuzzer d0847550e22d 55bf8926 .config console log report ci2-upstream-usb
2019/08/17 10:09 https://github.com/google/kasan.git usb-fuzzer d0847550e22d 8fd428a1 .config console log report ci2-upstream-usb
2019/08/17 08:09 https://github.com/google/kasan.git usb-fuzzer d0847550e22d 8fd428a1 .config console log report ci2-upstream-usb
* Struck through repros no longer work on HEAD.