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 11 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: 4548 at lib/debugobjects.c:514 debug_print_object+0xc4/0xd8 lib/debugobjects.c:514 ODEBUG: free active (active state 0) object: 885117ac 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: 4548 Comm: kworker/1:10 Not tainted 6.8.0-syzkaller #0 Hardware name: ARM-Versatile Express Workqueue: usb_hub_wq hub_event Backtrace: [<81873764>] (dump_backtrace) from [<81873860>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:256) r7:00000000 r6:82622e44 r5:00000000 r4:81fc2e3c [<81873848>] (show_stack) from [<81891004>] (__dump_stack lib/dump_stack.c:88 [inline]) [<81873848>] (show_stack) from [<81891004>] (dump_stack_lvl+0x54/0x7c lib/dump_stack.c:114) [<81890fb0>] (dump_stack_lvl) from [<81891044>] (dump_stack+0x18/0x1c lib/dump_stack.c:123) r5:00000000 r4:82857d18 [<8189102c>] (dump_stack) from [<81874308>] (panic+0x120/0x358 kernel/panic.c:348) [<818741e8>] (panic) from [<802438cc>] (check_panic_on_warn kernel/panic.c:241 [inline]) [<818741e8>] (panic) from [<802438cc>] (print_tainted+0x0/0xa0 kernel/panic.c:236) r3:8260c584 r2:00000001 r1:81fabac4 r0:81fb366c r7:8080b248 [<80243858>] (check_panic_on_warn) from [<80243ac0>] (__warn+0x7c/0x180 kernel/panic.c:694) [<80243a44>] (__warn) from [<80243dac>] (warn_slowpath_fmt+0x1e8/0x1f4 kernel/panic.c:727) r8:00000009 r7:8200fa1c r6:dfa79a7c r5:88439800 r4:00000000 [<80243bc8>] (warn_slowpath_fmt) from [<8080b248>] (debug_print_object+0xc4/0xd8 lib/debugobjects.c:514) r10:00000005 r9:88511000 r8:81a02b44 r7:820378d4 r6:828bb414 r5:dfa79b24 r4:8260ce18 [<8080b184>] (debug_print_object) from [<8080cae0>] (__debug_check_no_obj_freed lib/debugobjects.c:989 [inline]) [<8080b184>] (debug_print_object) from [<8080cae0>] (debug_check_no_obj_freed+0x254/0x2a0 lib/debugobjects.c:1019) r8:88511800 r7:885117ac r6:00000100 r5:00000003 r4:00000000 [<8080c88c>] (debug_check_no_obj_freed) from [<804b2308>] (slab_free_hook mm/slub.c:2078 [inline]) [<8080c88c>] (debug_check_no_obj_freed) from [<804b2308>] (slab_free mm/slub.c:4280 [inline]) [<8080c88c>] (debug_check_no_obj_freed) from [<804b2308>] (kfree+0x1a0/0x334 mm/slub.c:4390) r10:8447a880 r9:82775b68 r8:88511000 r7:8045a464 r6:82c023c0 r5:ddf24640 r4:88511000 [<804b2168>] (kfree) from [<8045a464>] (kvfree+0x2c/0x30 mm/util.c:680) r10:8447a880 r9:82775b68 r8:88511000 r7:00000000 r6:88e7d800 r5:88b9bd80 r4:88511000 [<8045a438>] (kvfree) from [<813adedc>] (netdev_freemem+0x1c/0x20 net/core/dev.c:10794) r5:88b9bd80 r4:88511000 [<813adec0>] (netdev_freemem) from [<813e8f3c>] (netdev_release+0x2c/0x34 net/core/net-sysfs.c:2031) [<813e8f10>] (netdev_release) from [<80a41278>] (device_release+0x38/0xa8 drivers/base/core.c:2499) r5:88b9bd80 r4:885113b0 [<80a41240>] (device_release) from [<8184d6bc>] (kobject_cleanup lib/kobject.c:689 [inline]) [<80a41240>] (device_release) from [<8184d6bc>] (kobject_release lib/kobject.c:720 [inline]) [<80a41240>] (device_release) from [<8184d6bc>] (kref_put include/linux/kref.h:65 [inline]) [<80a41240>] (device_release) from [<8184d6bc>] (kobject_put+0xc8/0x1f8 lib/kobject.c:737) r5:81b484cc r4:885113b0 [<8184d5f4>] (kobject_put) from [<80a414a4>] (put_device+0x18/0x1c drivers/base/core.c:3747) r7:8447b400 r6:88511108 r5:88511000 r4:00000000 [<80a4148c>] (put_device) from [<8139f2d4>] (free_netdev+0x108/0x188 net/core/dev.c:10990) [<8139f1cc>] (free_netdev) from [<80d100f4>] (usbnet_disconnect+0xac/0xf0 drivers/net/usb/usbnet.c:1636) r6:88511774 r5:88511660 r4:00000000 [<80d10048>] (usbnet_disconnect) from [<80d6af30>] (usb_unbind_interface+0x84/0x288 drivers/usb/core/driver.c:461) r8:00000001 r7:8447b430 r6:82775b68 r5:00000000 r4:8447a880 [<80d6aeac>] (usb_unbind_interface) from [<80a4926c>] (device_remove drivers/base/dd.c:569 [inline]) [<80d6aeac>] (usb_unbind_interface) from [<80a4926c>] (device_remove+0x64/0x6c drivers/base/dd.c:561) r10:8447a880 r9:828ebcc4 r8:00000044 r7:8447b474 r6:82775b68 r5:00000000 r4:8447b430 [<80a49208>] (device_remove) from [<80a4a7bc>] (__device_release_driver drivers/base/dd.c:1272 [inline]) [<80a49208>] (device_remove) from [<80a4a7bc>] (device_release_driver_internal+0x18c/0x200 drivers/base/dd.c:1295) r5:00000000 r4:8447b430 [<80a4a630>] (device_release_driver_internal) from [<80a4a848>] (device_release_driver+0x18/0x1c drivers/base/dd.c:1318) r9:828ebcc4 r8:82eabc40 r7:82eabc38 r6:82eabc0c r5:8447b430 r4:82eabc30 [<80a4a830>] (device_release_driver) from [<80a48914>] (bus_remove_device+0xcc/0x120 drivers/base/bus.c:574) [<80a48848>] (bus_remove_device) from [<80a42a20>] (device_del+0x15c/0x3bc drivers/base/core.c:3828) r9:828ebcc4 r8:8447b400 r7:88439800 r6:84767cc8 r5:04208060 r4:8447b430 [<80a428c4>] (device_del) from [<80d689dc>] (usb_disable_device+0xdc/0x1f0 drivers/usb/core/message.c:1416) r10:00000000 r9:00000000 r8:8447b400 r7:8447a800 r6:84767cc8 r5:00000001 r4:00000038 [<80d68900>] (usb_disable_device) from [<80d5d874>] (usb_disconnect+0xec/0x29c drivers/usb/core/hub.c:2267) r10:00000001 r9:888f0a00 r8:8447a8c4 r7:83d72c00 r6:8447a880 r5:8447a800 r4:60000013 [<80d5d788>] (usb_disconnect) from [<80d60514>] (hub_port_connect drivers/usb/core/hub.c:5323 [inline]) [<80d5d788>] (usb_disconnect) from [<80d60514>] (hub_port_connect_change drivers/usb/core/hub.c:5623 [inline]) [<80d5d788>] (usb_disconnect) from [<80d60514>] (port_event drivers/usb/core/hub.c:5783 [inline]) [<80d5d788>] (usb_disconnect) from [<80d60514>] (hub_event+0xe6c/0x1940 drivers/usb/core/hub.c:5865) r10:00000001 r9:00000100 r8:83dc7f00 r7:8447a800 r6:83d72400 r5:83d72e10 r4:00000001 [<80d5f6a8>] (hub_event) from [<802665bc>] (process_one_work+0x1b8/0x508 kernel/workqueue.c:3254) r10:82fc5a05 r9:88439800 r8:00000180 r7:ddde3f00 r6:82fc5a00 r5:83dc7f00 r4:887e1400 [<80266404>] (process_one_work) from [<802672e0>] (process_scheduled_works kernel/workqueue.c:3335 [inline]) [<80266404>] (process_one_work) from [<802672e0>] (worker_thread+0x1ec/0x418 kernel/workqueue.c:3416) r10:88439800 r9:887e142c r8:61c88647 r7:ddde3f20 r6:82604d40 r5:ddde3f00 r4:887e1400 [<802670f4>] (worker_thread) from [<8026fff0>] (kthread+0x104/0x134 kernel/kthread.c:388) r10:00000000 r9:eb451e90 r8:88ce1fc0 r7:887e1400 r6:802670f4 r5:88439800 r4:88ce02c0 [<8026feec>] (kthread) from [<80200104>] (ret_from_fork+0x14/0x30 arch/arm/kernel/entry-common.S:134) Exception stack(0xdfa79fb0 to 0xdfa79ff8) 9fa0: 00000000 00000000 00000000 00000000 9fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 9fe0: 00000000 00000000 00000000 00000000 00000013 00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:8026feec r4:88ce02c0 Rebooting in 86400 seconds..