cdc_ncm 1-1:1.0 usb0: register 'cdc_ncm' at usb-dummy_hcd.0-1, CDC NCM (NO ZLP), 42:42:42:42:42:42 usb 1-1: USB disconnect, device number 2 cdc_ncm 1-1:1.0 usb0: unregister 'cdc_ncm' usb-dummy_hcd.0-1, CDC NCM (NO ZLP) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 3727 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514 ODEBUG: free active (active state 0) object: 85129fac object type: work_struct hint: usbnet_deferred_kevent+0x0/0x388 drivers/net/usb/usbnet.c:630 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 1 PID: 3727 Comm: kworker/1:6 Not tainted 6.10.0-rc5-syzkaller #0 Hardware name: ARM-Versatile Express Workqueue: usb_hub_wq hub_event Call trace: [<818d4af8>] (dump_backtrace) from [<818d4bf4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:82622d44 r5:00000000 r4:81fe14f8 [<818d4bdc>] (show_stack) from [<818f2224>] (__dump_stack lib/dump_stack.c:88 [inline]) [<818d4bdc>] (show_stack) from [<818f2224>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114) [<818f21d0>] (dump_stack_lvl) from [<818f2264>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000000 r4:8285fd18 [<818f224c>] (dump_stack) from [<818d569c>] (panic+0x120/0x358 kernel/panic.c:347) [<818d557c>] (panic) from [<80243dcc>] (check_panic_on_warn kernel/panic.c:240 [inline]) [<818d557c>] (panic) from [<80243dcc>] (print_tainted+0x0/0xa0 kernel/panic.c:235) r3:8260c5c4 r2:00000001 r1:81fca16c r0:81fd1dbc r7:8082735c [<80243d58>] (check_panic_on_warn) from [<80243fc0>] (__warn+0x7c/0x180 kernel/panic.c:693) [<80243f44>] (__warn) from [<802442ac>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:726) r8:00000009 r7:8202fd5c r6:e06bda7c r5:84118c00 r4:00000000 [<802440c8>] (warn_slowpath_fmt) from [<8082735c>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514) r10:00000005 r9:85129800 r8:81a02b44 r7:82058e54 r6:828c3654 r5:e06bdb24 r4:8260cda8 [<80827298>] (debug_print_object) from [<80828bfc>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline]) [<80827298>] (debug_print_object) from [<80828bfc>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019) r8:8512a000 r7:85129fac r6:00000100 r5:00000003 r4:00000000 [<808289a8>] (debug_check_no_obj_freed) from [<804bae88>] (slab_free_hook mm/slub.c:2163 [inline]) [<808289a8>] (debug_check_no_obj_freed) from [<804bae88>] (slab_free mm/slub.c:4437 [inline]) [<808289a8>] (debug_check_no_obj_freed) from [<804bae88>] (kfree+0x1a0/0x340 mm/slub.c:4558) r10:82778808 r9:8454a080 r8:85129800 r7:804610c8 r6:82c023c0 r5:ddeaf9a0 r4:85129800 [<804bace8>] (kfree) from [<804610c8>] (kvfree+0x2c/0x30 mm/util.c:680) r10:82778808 r9:8454a080 r8:85129800 r7:00000000 r6:84faa3c0 r5:85033100 r4:85129800 [<8046109c>] (kvfree) from [<8140a55c>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10903) r5:85033100 r4:85129800 [<8140a540>] (netdev_freemem) from [<81445f50>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031) [<81445f24>] (netdev_release) from [<80a602a4>] (device_release+0x38/0xa8 drivers/base/core.c:2581) r5:85033100 r4:85129bb8 [<80a6026c>] (device_release) from [<818ae974>] (kobject_cleanup lib/kobject.c:689 [inline]) [<80a6026c>] (device_release) from [<818ae974>] (kobject_release lib/kobject.c:720 [inline]) [<80a6026c>] (device_release) from [<818ae974>] (kref_put include/linux/kref.h:65 [inline]) [<80a6026c>] (device_release) from [<818ae974>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737) r5:81b497f4 r4:85129bb8 [<818ae8ac>] (kobject_put) from [<80a604d0>] (put_device+0x18/0x1c drivers/base/core.c:3787) r7:84548800 r6:8512990c r5:85129800 r4:00000000 [<80a604b8>] (put_device) from [<813fb6f0>] (free_netdev+0x10c/0x18c net/core/dev.c:11100) [<813fb5e4>] (free_netdev) from [<80d34274>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636) r6:85129f74 r5:85129e60 r4:00000000 [<80d341c8>] (usbnet_disconnect) from [<80d93358>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461) r8:00000044 r7:84548830 r6:82778808 r5:00000000 r4:84548800 [<80d932d4>] (usb_unbind_interface) from [<80a683ac>] (device_remove drivers/base/dd.c:568 [inline]) [<80d932d4>] (usb_unbind_interface) from [<80a683ac>] (device_remove+0x64/0x6c drivers/base/dd.c:560) r10:00000000 r9:8454a080 r8:00000044 r7:84548874 r6:82778808 r5:00000000 r4:84548830 [<80a68348>] (device_remove) from [<80a698c4>] (__device_release_driver drivers/base/dd.c:1270 [inline]) [<80a68348>] (device_remove) from [<80a698c4>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1293) r5:00000000 r4:84548830 [<80a69738>] (device_release_driver_internal) from [<80a69950>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1316) r9:8454a080 r8:82ed1f40 r7:82ed1f38 r6:82ed1f0c r5:84548830 r4:82ed1f30 [<80a69938>] (device_release_driver) from [<80a67a34>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574) [<80a67968>] (bus_remove_device) from [<80a61b4c>] (device_del+0x148/0x38c drivers/base/core.c:3868) r9:8454a080 r8:84118c00 r7:04208060 r6:00000000 r5:84548830 r4:84548874 [<80a61a04>] (device_del) from [<80d90db0>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418) r10:00000000 r9:00000000 r8:84548800 r7:8454a000 r6:84f95308 r5:00000001 r4:00000038 [<80d90cd4>] (usb_disable_device) from [<80d85c10>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2304) r10:00000001 r9:8447c800 r8:8454a0c4 r7:838c2000 r6:8454a080 r5:8454a000 r4:60000013 [<80d85b24>] (usb_disconnect) from [<80d888c0>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline]) [<80d85b24>] (usb_disconnect) from [<80d888c0>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]) [<80d85b24>] (usb_disconnect) from [<80d888c0>] (port_event drivers/usb/core/hub.c:5821 [inline]) [<80d85b24>] (usb_disconnect) from [<80d888c0>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903) r10:00000001 r9:00000100 r8:83c09300 r7:8454a000 r6:838c1800 r5:838c2210 r4:00000001 [<80d87a48>] (hub_event) from [<80267278>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3248) r10:82f95a05 r9:84118c00 r8:01800000 r7:ddde40c0 r6:82f95a00 r5:83c09300 r4:84fa9980 [<802670c4>] (process_one_work) from [<80267ea0>] (process_scheduled_works kernel/workqueue.c:3329 [inline]) [<802670c4>] (process_one_work) from [<80267ea0>] (worker_thread+0x1ec/0x404 kernel/workqueue.c:3409) r10:84118c00 r9:84fa99ac r8:61c88647 r7:ddde40e0 r6:82604d40 r5:ddde40c0 r4:84fa9980 [<80267cb4>] (worker_thread) from [<802712e0>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df925e78 r8:84fa70c0 r7:84fa9980 r6:80267cb4 r5:84118c00 r4:85042c40 [<802711dc>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:134) Exception stack(0xe06bdfb0 to 0xe06bdff8) dfa0: 00000000 00000000 00000000 00000000 dfc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dfe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:802711dc r4:85042c40 Rebooting in 86400 seconds..