------------[ cut here ]------------ WARNING: CPU: 0 PID: 43 at kernel/workqueue.c:2322 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 0 PID: 43 at kernel/workqueue.c:2322 is_chained_work kernel/workqueue.c:2264 [inline] WARNING: CPU: 0 PID: 43 at kernel/workqueue.c:2322 __queue_work+0xdec/0x12b0 kernel/workqueue.c:2321 Modules linked in: CPU: 0 PID: 43 Comm: kworker/u8:4 Not tainted 6.9.0-rc3-syzkaller-gb5d2afe8745b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Workqueue: bat_events batadv_nc_worker pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xdec/0x12b0 kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:2264 [inline] lr : __queue_work+0xdec/0x12b0 kernel/workqueue.c:2321 sp : ffff800080007b70 x29: ffff800080007bb0 x28: 1fffe000183ebb59 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000f0fdc800 x24: 0000000000000008 x23: ffff0000f0fdc9c0 x22: ffff0000c1f5dac8 x21: 0000000000000100 x20: ffff0000c1f5dac0 x19: ffff0000e49d8c10 x18: 0000000000000001 x17: ffff800124ffb000 x16: ffff80008ae71340 x15: 0000000000000002 x14: ffff80008ee80668 x13: dfff800000000000 x12: 000000003c3f453b x11: 00000000ea671ab7 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000c1f5dac0 x7 : ffff80008043f4a0 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008d5eee80 x2 : ffff0000e49d8c10 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:2264 [inline] __queue_work+0xdec/0x12b0 kernel/workqueue.c:2321 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:2529 call_timer_fn+0x1b4/0x93c kernel/time/timer.c:1793 expire_timers kernel/time/timer.c:1839 [inline] __run_timers kernel/time/timer.c:2418 [inline] __run_timer_base+0x59c/0x7b4 kernel/time/timer.c:2429 run_timer_base kernel/time/timer.c:2438 [inline] run_timer_softirq+0xcc/0x194 kernel/time/timer.c:2448 __do_softirq+0x2e4/0xd2c kernel/softirq.c:554 ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 call_on_irq_stack+0x24/0x4c arch/arm64/kernel/entry.S:889 do_softirq_own_stack+0x20/0x2c arch/arm64/kernel/irq.c:86 invoke_softirq kernel/softirq.c:435 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:633 irq_exit_rcu+0x14/0x84 kernel/softirq.c:645 __el1_irq arch/arm64/kernel/entry-common.c:537 [inline] el1_interrupt+0x38/0x68 arch/arm64/kernel/entry-common.c:551 el1h_64_irq_handler+0x18/0x24 arch/arm64/kernel/entry-common.c:556 el1h_64_irq+0x64/0x68 arch/arm64/kernel/entry.S:594 __daif_local_irq_restore arch/arm64/include/asm/irqflags.h:175 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:195 [inline] lock_acquire+0x284/0x73c kernel/locking/lockdep.c:5757 rcu_lock_acquire+0x40/0x4c include/linux/rcupdate.h:329 rcu_read_lock include/linux/rcupdate.h:781 [inline] batadv_nc_purge_orig_hash net/batman-adv/network-coding.c:408 [inline] batadv_nc_worker+0xd0/0x580 net/batman-adv/network-coding.c:719 process_one_work+0x7b8/0x15d4 kernel/workqueue.c:3254 process_scheduled_works kernel/workqueue.c:3335 [inline] worker_thread+0x938/0xef4 kernel/workqueue.c:3416 kthread+0x288/0x310 kernel/kthread.c:388 ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:860 irq event stamp: 5836631 hardirqs last enabled at (5836630): [] __local_bh_enable_ip+0x224/0x44c kernel/softirq.c:387 hardirqs last disabled at (5836631): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (5836631): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (5836586): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (5836586): [] batadv_nc_purge_paths+0x2f4/0x378 net/batman-adv/network-coding.c:471 softirqs last disabled at (5836593): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]---