------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: timer_list hint: arch_local_irq_disable arch/arm64/include/asm/irqflags.h:59 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: arch_local_irq_save arch/arm64/include/asm/irqflags.h:112 [inline] ODEBUG: free active (active state 0) object type: timer_list hint: delayed_work_timer_fn+0x0/0x90 kernel/workqueue.c:1634 WARNING: CPU: 1 PID: 6667 at lib/debugobjects.c:515 debug_print_object lib/debugobjects.c:512 [inline] WARNING: CPU: 1 PID: 6667 at lib/debugobjects.c:515 __debug_check_no_obj_freed lib/debugobjects.c:999 [inline] WARNING: CPU: 1 PID: 6667 at lib/debugobjects.c:515 debug_check_no_obj_freed+0x3f0/0x50c lib/debugobjects.c:1030 Modules linked in: CPU: 1 PID: 6667 Comm: syz-executor.1 Not tainted 5.15.110-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:512 [inline] pc : __debug_check_no_obj_freed lib/debugobjects.c:999 [inline] pc : debug_check_no_obj_freed+0x3f0/0x50c lib/debugobjects.c:1030 lr : debug_print_object lib/debugobjects.c:512 [inline] lr : __debug_check_no_obj_freed lib/debugobjects.c:999 [inline] lr : debug_check_no_obj_freed+0x3f0/0x50c lib/debugobjects.c:1030 sp : ffff80001d1e6de0 x29: ffff80001d1e6e20 x28: ffff800011ab2dc0 x27: dfff800000000000 x26: ffff0001015694f8 x25: 0000000000000000 x24: ffff800018597528 x23: ffff000101517070 x22: ffff800011f40cd8 x21: ffff800011ab2dc0 x20: ffff800018597520 x19: ffff000101568000 x18: 1fffe00036903d8e x17: 1fffe00036903d8e x16: ffff800011941a9c x15: ffff80001496f0c0 x14: 1ffff0000291a06a x13: ffffffffffffffff x12: 0000000000040000 x11: 000000000003ffff x10: ffff80001fa69000 x9 : a5dd06b91d8a6800 x8 : a5dd06b91d8a6800 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000000 x3 : ffff80000854c204 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000061 Call trace: debug_print_object lib/debugobjects.c:512 [inline] __debug_check_no_obj_freed lib/debugobjects.c:999 [inline] debug_check_no_obj_freed+0x3f0/0x50c lib/debugobjects.c:1030 slab_free_hook mm/slub.c:1680 [inline] slab_free_freelist_hook+0x9c/0x1ec mm/slub.c:1731 slab_free mm/slub.c:3499 [inline] kfree+0x178/0x410 mm/slub.c:4559 kvfree+0x40/0x50 mm/util.c:654 netdev_freemem+0x4c/0x64 net/core/dev.c:10769 netdev_release+0x88/0xb0 net/core/net-sysfs.c:1903 device_release+0x8c/0x1ac kobject_cleanup lib/kobject.c:713 [inline] kobject_release lib/kobject.c:744 [inline] kref_put include/linux/kref.h:65 [inline] kobject_put+0x2c4/0x438 lib/kobject.c:761 netdev_run_todo+0x968/0xae0 net/core/dev.c:10633 rtnl_unlock net/core/rtnetlink.c:112 [inline] rtnetlink_rcv_msg+0xa7c/0xdac net/core/rtnetlink.c:5588 netlink_rcv_skb+0x20c/0x3b8 net/netlink/af_netlink.c:2533 rtnetlink_rcv+0x28/0x38 net/core/rtnetlink.c:5605 netlink_unicast_kernel net/netlink/af_netlink.c:1330 [inline] netlink_unicast+0x664/0x938 net/netlink/af_netlink.c:1356 netlink_sendmsg+0x844/0xb38 net/netlink/af_netlink.c:1952 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg net/socket.c:724 [inline] ____sys_sendmsg+0x584/0x870 net/socket.c:2412 ___sys_sendmsg+0x214/0x294 net/socket.c:2466 __sys_sendmsg net/socket.c:2495 [inline] __do_sys_sendmsg net/socket.c:2504 [inline] __se_sys_sendmsg net/socket.c:2502 [inline] __arm64_sys_sendmsg+0x1ac/0x25c net/socket.c:2502 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 31764 hardirqs last enabled at (31763): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1338 [inline] hardirqs last enabled at (31763): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:4780 hardirqs last disabled at (31764): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:387 softirqs last enabled at (31686): [] spin_unlock_bh include/linux/spinlock.h:408 [inline] softirqs last enabled at (31686): [] batadv_tvlv_handler_unregister+0x160/0x27c net/batman-adv/tvlv.c:575 softirqs last disabled at (31684): [] spin_lock_bh include/linux/spinlock.h:368 [inline] softirqs last disabled at (31684): [] batadv_tvlv_handler_unregister+0xcc/0x27c net/batman-adv/tvlv.c:573 ---[ end trace 55aa4bec849c2abb ]---