cdc_ncm 2-1:1.0 eth1: register 'cdc_ncm' at usb-dummy_hcd.1-1, CDC NCM (NO ZLP), 42:42:42:42:42:42 usb 2-1: USB disconnect, device number 3 cdc_ncm 2-1:1.0 eth1: unregister 'cdc_ncm' usb-dummy_hcd.1-1, CDC NCM (NO ZLP) ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3815 at lib/debugobjects.c:612 debug_print_object+0xc4/0xd8 lib/debugobjects.c:612 ODEBUG: free active (active state 0) object: 846a980c object type: work_struct hint: usbnet_deferred_kevent+0x0/0x394 drivers/net/usb/usbnet.c:633 Modules linked in: Kernel panic - not syncing: kernel: panic_on_warn set ... CPU: 0 UID: 0 PID: 3815 Comm: kworker/0:4 Not tainted 6.12.0-syzkaller #0 Hardware name: ARM-Versatile Express Workqueue: usb_hub_wq hub_event Call trace: [<819b7fb8>] (dump_backtrace) from [<819b80b4>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:257) r7:00000000 r6:82623304 r5:00000000 r4:820413b8 [<819b809c>] (show_stack) from [<819d60dc>] (__dump_stack lib/dump_stack.c:94 [inline]) [<819b809c>] (show_stack) from [<819d60dc>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:120) [<819d6088>] (dump_stack_lvl) from [<819d611c>] (dump_stack+0x18/0x1c lib/dump_stack.c:129) r5:00000000 r4:82874d18 [<819d6104>] (dump_stack) from [<819b8be0>] (panic+0x120/0x374 kernel/panic.c:354) [<819b8ac0>] (panic) from [<802426d0>] (check_panic_on_warn kernel/panic.c:243 [inline]) [<819b8ac0>] (panic) from [<802426d0>] (get_taint+0x0/0x1c kernel/panic.c:238) r3:8260c604 r2:00000001 r1:82029878 r0:82031344 r7:80860a74 [<8024265c>] (check_panic_on_warn) from [<80242834>] (__warn+0x80/0x188 kernel/panic.c:748) [<802427b4>] (__warn) from [<80242b24>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:783) r8:00000009 r7:82090ab8 r6:dfecda8c r5:846c3000 r4:00000000 [<80242940>] (warn_slowpath_fmt) from [<80860a74>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:612) r10:00000005 r9:846a9000 r8:81a01c34 r7:820baeb4 r6:828e1144 r5:dfecdb34 r4:8260cdf0 [<808609b0>] (debug_print_object) from [<808624c0>] (__debug_check_no_obj_freed lib/debugobjects.c:1099 [inline]) [<808609b0>] (debug_print_object) from [<808624c0>] (debug_check_no_obj_freed+0x25c/0x2a4 lib/debugobjects.c:1129) r8:846aa000 r7:846a980c r6:00000100 r5:00000003 r4:00000000 [<80862264>] (debug_check_no_obj_freed) from [<804d00fc>] (slab_free_hook mm/slub.c:2273 [inline]) [<80862264>] (debug_check_no_obj_freed) from [<804d00fc>] (slab_free mm/slub.c:4579 [inline]) [<80862264>] (debug_check_no_obj_freed) from [<804d00fc>] (kfree+0x190/0x394 mm/slub.c:4727) r10:82781654 r9:85092480 r8:846a9000 r7:8047356c r6:82c02480 r5:dde97fa0 r4:846a9000 [<804cff6c>] (kfree) from [<8047356c>] (kvfree+0x2c/0x30 mm/util.c:701) r10:82781654 r9:85092480 r8:846a9000 r7:00000000 r6:8474bd00 r5:84cf3d00 r4:846a9000 [<80473540>] (kvfree) from [<8150ecc8>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2034) r5:84cf3d00 r4:846a9000 [<8150ec9c>] (netdev_release) from [<80aa92d8>] (device_release+0x38/0xa8 drivers/base/core.c:2574) r5:84cf3d00 r4:846a93b8 [<80aa92a0>] (device_release) from [<81991e0c>] (kobject_cleanup lib/kobject.c:689 [inline]) [<80aa92a0>] (device_release) from [<81991e0c>] (kobject_release lib/kobject.c:720 [inline]) [<80aa92a0>] (device_release) from [<81991e0c>] (kref_put include/linux/kref.h:65 [inline]) [<80aa92a0>] (device_release) from [<81991e0c>] (kobject_put+0xa0/0x1f4 lib/kobject.c:737) r5:81b4bcd4 r4:846a93b8 [<81991d6c>] (kobject_put) from [<80aa9504>] (put_device+0x18/0x1c drivers/base/core.c:3780) r7:85092000 r6:00000000 r5:846a9000 r4:00000000 [<80aa94ec>] (put_device) from [<814c0e40>] (free_netdev+0x13c/0x1b4 net/core/dev.c:11372) [<814c0d04>] (free_netdev) from [<80d92f14>] (usbnet_disconnect+0xb8/0xfc drivers/net/usb/usbnet.c:1652) r6:846a97d4 r5:846a96c0 r4:00000000 [<80d92e5c>] (usbnet_disconnect) from [<80dfbda0>] (usb_unbind_interface+0x84/0x2c4 drivers/usb/core/driver.c:461) r8:00000044 r7:85092030 r6:82781654 r5:00000000 r4:85092000 [<80dfbd1c>] (usb_unbind_interface) from [<80ab158c>] (device_remove drivers/base/dd.c:569 [inline]) [<80dfbd1c>] (usb_unbind_interface) from [<80ab158c>] (device_remove+0x64/0x6c drivers/base/dd.c:561) r10:00000000 r9:85092480 r8:00000044 r7:85092074 r6:82781654 r5:00000000 r4:85092030 [<80ab1528>] (device_remove) from [<80ab2a78>] (__device_release_driver drivers/base/dd.c:1273 [inline]) [<80ab1528>] (device_remove) from [<80ab2a78>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1296) r5:00000000 r4:85092030 [<80ab28ec>] (device_release_driver_internal) from [<80ab2b04>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1319) r9:85092480 r8:82fd4340 r7:82fd4338 r6:82fd430c r5:85092030 r4:82fd4330 [<80ab2aec>] (device_release_driver) from [<80ab0bec>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:576) [<80ab0b20>] (bus_remove_device) from [<80aaaf34>] (device_del+0x148/0x38c drivers/base/core.c:3861) r9:85092480 r8:846c3000 r7:04208060 r6:00000000 r5:85092030 r4:85092074 [<80aaadec>] (device_del) from [<80df97bc>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1418) r10:00000000 r9:00000000 r8:85092000 r7:85092400 r6:85157508 r5:00000001 r4:00000038 [<80df96e0>] (usb_disable_device) from [<80dee620>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2304) r10:00000001 r9:84e20a00 r8:850924c4 r7:83d8ac00 r6:85092480 r5:85092400 r4:60000113 [<80dee534>] (usb_disconnect) from [<80df12d0>] (hub_port_connect drivers/usb/core/hub.c:5361 [inline]) [<80dee534>] (usb_disconnect) from [<80df12d0>] (hub_port_connect_change drivers/usb/core/hub.c:5661 [inline]) [<80dee534>] (usb_disconnect) from [<80df12d0>] (port_event drivers/usb/core/hub.c:5821 [inline]) [<80dee534>] (usb_disconnect) from [<80df12d0>] (hub_event+0xe78/0x194c drivers/usb/core/hub.c:5903) r10:00000001 r9:00000100 r8:838dd500 r7:85092400 r6:83d8a400 r5:83d8ae10 r4:00000001 [<80df0458>] (hub_event) from [<80266e90>] (process_one_work+0x1b4/0x4f4 kernel/workqueue.c:3229) r10:82e6d405 r9:846c3000 r8:00800000 r7:dddcfe40 r6:82e6d400 r5:838dd500 r4:8519b980 [<80266cdc>] (process_one_work) from [<80267a74>] (process_scheduled_works kernel/workqueue.c:3310 [inline]) [<80266cdc>] (process_one_work) from [<80267a74>] (worker_thread+0x1ec/0x3bc kernel/workqueue.c:3391) r10:846c3000 r9:8519b9ac r8:61c88647 r7:dddcfe60 r6:82604d40 r5:dddcfe40 r4:8519b980 [<80267888>] (worker_thread) from [<80270ae0>] (kthread+0x104/0x134 kernel/kthread.c:389) r10:00000000 r9:df839e78 r8:85156480 r7:8519b980 r6:80267888 r5:846c3000 r4:844f6380 [<802709dc>] (kthread) from [<80200114>] (ret_from_fork+0x14/0x20 arch/arm/kernel/entry-common.S:137) Exception stack(0xdfecdfb0 to 0xdfecdff8) 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 r5:802709dc r4:844f6380 Rebooting in 86400 seconds..