------------[ cut here ]------------ WARNING: CPU: 1 PID: 2835 at kernel/workqueue.c:1728 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 1 PID: 2835 at kernel/workqueue.c:1728 is_chained_work kernel/workqueue.c:1669 [inline] WARNING: CPU: 1 PID: 2835 at kernel/workqueue.c:1728 __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 Modules linked in: CPU: 1 PID: 2835 Comm: syz-executor.4 Not tainted 6.8.0-rc6-syzkaller-g9910665503b3 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 pstate: 004000c5 (nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xdb8/0x12bc kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:1669 [inline] lr : __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 sp : ffff800080017b70 x29: ffff800080017bb0 x28: 1fffe0001b87c3c1 x27: dfff800000000000 x26: dfff800000000000 x25: ffff0000cdd4c400 x24: 0000000000000008 x23: ffff0000cdd4c5c0 x22: ffff0000dc3e1e08 x21: 0000000000000100 x20: ffff0000dc3e1e00 x19: ffff0000c99ccc10 x18: dfff800000000000 x17: ffff800125436000 x16: ffff80008ad67f9c x15: 0000000000000002 x14: ffff80008eca0458 x13: dfff800000000000 x12: 0000000036353f39 x11: 0000000030014ef6 x10: 0000000000ff0100 x9 : 0000000000000000 x8 : ffff0000dc3e1e00 x7 : ffff800080426480 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff80008d45fde0 x2 : ffff0000c99ccc10 x1 : 0000000000000100 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:1669 [inline] __queue_work+0xdb8/0x12bc kernel/workqueue.c:1727 delayed_work_timer_fn+0x74/0x90 kernel/workqueue.c:1931 call_timer_fn+0x19c/0x8d4 kernel/time/timer.c:1700 expire_timers kernel/time/timer.c:1746 [inline] __run_timers+0x57c/0x6fc kernel/time/timer.c:2038 run_timer_softirq+0x7c/0x114 kernel/time/timer.c:2051 __do_softirq+0x2d8/0xce4 kernel/softirq.c:553 ____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:434 [inline] __irq_exit_rcu+0x1d8/0x434 kernel/softirq.c:632 irq_exit_rcu+0x14/0x84 kernel/softirq.c:644 __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:176 [inline] arch_local_irq_restore arch/arm64/include/asm/irqflags.h:196 [inline] lock_release+0x4f4/0x9ac kernel/locking/lockdep.c:5777 fs_reclaim_acquire+0xc8/0x120 mm/page_alloc.c:3710 might_alloc include/linux/sched/mm.h:303 [inline] slab_pre_alloc_hook mm/slub.c:3761 [inline] slab_alloc_node mm/slub.c:3842 [inline] kmem_cache_alloc+0x58/0x488 mm/slub.c:3867 kmem_cache_zalloc include/linux/slab.h:701 [inline] __proc_create+0x380/0x7f4 fs/proc/generic.c:425 proc_create_reg+0x8c/0x110 fs/proc/generic.c:552 proc_create_net_single+0xbc/0x198 fs/proc/proc_net.c:213 ipv6_proc_init_net+0x94/0x160 net/ipv6/proc.c:285 ops_init+0x2e8/0x548 net/core/net_namespace.c:136 setup_net+0x438/0xac0 net/core/net_namespace.c:339 copy_net_ns+0x3d8/0x658 net/core/net_namespace.c:495 create_new_namespaces+0x344/0x614 kernel/nsproxy.c:110 unshare_nsproxy_namespaces+0x108/0x158 kernel/nsproxy.c:228 ksys_unshare+0x498/0x8fc kernel/fork.c:3428 __do_sys_unshare kernel/fork.c:3499 [inline] __se_sys_unshare kernel/fork.c:3497 [inline] __arm64_sys_unshare+0x3c/0x50 kernel/fork.c:3497 __invoke_syscall arch/arm64/kernel/syscall.c:34 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:48 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:133 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:152 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:712 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:730 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:598 irq event stamp: 6653 hardirqs last enabled at (6652): [] __do_softirq+0x1bc/0xce4 kernel/softirq.c:537 hardirqs last disabled at (6653): [] __raw_spin_lock_irq include/linux/spinlock_api_smp.h:117 [inline] hardirqs last disabled at (6653): [] _raw_spin_lock_irq+0x28/0x70 kernel/locking/spinlock.c:170 softirqs last enabled at (6568): [] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (6568): [] release_sock+0x154/0x1b8 net/core/sock.c:3547 softirqs last disabled at (6651): [] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:81 ---[ end trace 0000000000000000 ]---