syzbot

 sign-in | mailing list | source | docs
🐞 Open [994] ≡ Subsystems 🐞 Fixed [5242] 🐞 Invalid [12515] ⬇ Missing Backports [83] 📈 Kernel Health 📈 Bug Lifetimes 📈 Fuzzing 📈 Crashes 💬 Send us feedback

WARNING: ODEBUG bug in __free_pages_ok

Status: closed as dup on 2019/09/05 12:03
Subsystems: input usb
[Documentation on labels]
Reported-by: syzbot+6ff9bba63b987471b8be@syzkaller.appspotmail.com
First crash: 1737d, last: 1715d
▶ ▼ Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING: ODEBUG bug in usbhid_disconnect (2) input usb C 48 1675d 1697d
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
WARNING: ODEBUG bug in __free_pages_ok 1 (2) 2019/09/05 12:03
Reminder: 52 active syzbot reports in usb subsystem 1 (1) 2019/08/22 03:28

Sample crash report:
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: 12 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: 12 Comm: kworker/0:1 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:ffff8881da20f718 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000
RDX: 0000000000000000 RSI: ffffffff81288cfd RDI: ffffed103b441ed5
RBP: 0000000000000001 R08: ffff8881da1f9800 R09: fffffbfff11ad39a
R10: fffffbfff11ad399 R11: ffffffff88d69ccf R12: ffffffff86d0dc60
R13: ffffffff812e7c70 R14: ffff8881d20de8c8 R15: ffff8881d49bb700
 __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
 process_scheduled_works kernel/workqueue.c:2331 [inline]
 worker_thread+0x7ab/0xe20 kernel/workqueue.c:2417
 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 (18):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2019/08/14 17:44 https://github.com/google/kasan.git usb-fuzzer d0847550e22d 5576551b .config console log report syz C ci2-upstream-usb
2019/08/08 11:01 https://github.com/google/kasan.git usb-fuzzer e96407b49762 e6ebef88 .config console log report syz C ci2-upstream-usb
2019/07/25 06:02 https://github.com/google/kasan.git usb-fuzzer 6a3599ceaa39 32329ceb .config console log report syz C ci2-upstream-usb
2019/08/13 18:33 https://github.com/google/kasan.git usb-fuzzer d0847550e22d 74d61399 .config console log report syz ci2-upstream-usb
2019/08/09 17:35 https://github.com/google/kasan.git usb-fuzzer e96407b49762 aff9e255 .config console log report syz ci2-upstream-usb
2019/08/09 02:04 https://github.com/google/kasan.git usb-fuzzer e96407b49762 ede31a9b .config console log report syz ci2-upstream-usb
2019/08/16 03:44 https://github.com/google/kasan.git usb-fuzzer d0847550e22d faeffb00 .config console log report ci2-upstream-usb
2019/08/15 18:17 https://github.com/google/kasan.git usb-fuzzer d0847550e22d faeffb00 .config console log report ci2-upstream-usb
2019/08/14 07:57 https://github.com/google/kasan.git usb-fuzzer d0847550e22d ef801a3e .config console log report ci2-upstream-usb
2019/08/12 19:59 https://github.com/google/kasan.git usb-fuzzer d0847550e22d 8620c2c2 .config console log report ci2-upstream-usb
2019/08/12 10:30 https://github.com/google/kasan.git usb-fuzzer e96407b49762 8620c2c2 .config console log report ci2-upstream-usb
2019/08/11 19:44 https://github.com/google/kasan.git usb-fuzzer e96407b49762 acb51638 .config console log report ci2-upstream-usb
2019/08/10 13:25 https://github.com/google/kasan.git usb-fuzzer e96407b49762 acb51638 .config console log report ci2-upstream-usb
2019/08/09 21:41 https://github.com/google/kasan.git usb-fuzzer e96407b49762 aff9e255 .config console log report ci2-upstream-usb
2019/08/07 05:51 https://github.com/google/kasan.git usb-fuzzer e96407b49762 cdde7486 .config console log report ci2-upstream-usb
2019/08/03 11:39 https://github.com/google/kasan.git usb-fuzzer e96407b49762 6affd8e8 .config console log report ci2-upstream-usb
2019/08/02 13:35 https://github.com/google/kasan.git usb-fuzzer e96407b49762 835dffe7 .config console log report ci2-upstream-usb
2019/08/01 15:39 https://github.com/google/kasan.git usb-fuzzer e96407b49762 835dffe7 .config console log report ci2-upstream-usb
* Struck through repros no longer work on HEAD.