INFO: rcu_preempt detected stalls on CPUs/tasks: (detected by 0, t=10502 jiffies, g=28448, c=28447, q=78) All QSes seen, last rcu_preempt kthread activity 10503 (4295096329-4295085826), jiffies_till_next_fqs=1, root ->qsmask 0x0 syz-executor.0 R running task 28720 11923 7458 0x00000008 Call Trace: sched_show_task kernel/sched/core.c:5168 [inline] sched_show_task.cold+0x2e3/0x347 kernel/sched/core.c:5143 print_other_cpu_stall kernel/rcu/tree.c:1501 [inline] check_cpu_stall kernel/rcu/tree.c:1616 [inline] __rcu_pending kernel/rcu/tree.c:3390 [inline] rcu_pending kernel/rcu/tree.c:3452 [inline] rcu_check_callbacks.cold+0xd3f/0xdaa kernel/rcu/tree.c:2792 update_process_times+0x29/0x60 kernel/time/timer.c:1590 tick_sched_handle+0x7d/0x150 kernel/time/tick-sched.c:165 tick_sched_timer+0x3e/0x120 kernel/time/tick-sched.c:1223 __run_hrtimer kernel/time/hrtimer.c:1223 [inline] __hrtimer_run_queues+0x25c/0xbb0 kernel/time/hrtimer.c:1287 hrtimer_interrupt+0x1e6/0x5e0 kernel/time/hrtimer.c:1321 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1075 [inline] smp_apic_timer_interrupt+0x117/0x5e0 arch/x86/kernel/apic/apic.c:1100 apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:rcu_read_lock include/linux/rcupdate.h:630 [inline] RIP: 0010:is_bpf_text_address+0xde/0x120 kernel/bpf/core.c:456 RSP: 0018:ffff8880aea07848 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff10 RAX: ffff88801c6783c0 RBX: 000000000045c479 RCX: 1ffffffff1027974 RDX: 0000000000000100 RSI: ffff88801c678ce0 RDI: ffff88801c678c3c RBP: 000000000045c479 R08: 0000000000000000 R09: 0000000000022012 R10: ffff88801c678ce0 R11: ffff88801c6783c0 R12: 0000000000000000 R13: 0000000000000000 R14: ffff88801c6783c0 R15: ffff8880a4a652a7 kernel_text_address+0x6e/0xe0 kernel/extable.c:150 __kernel_text_address+0x9/0x30 kernel/extable.c:105 unwind_get_return_address arch/x86/kernel/unwind_orc.c:255 [inline] unwind_get_return_address+0x5a/0xa0 arch/x86/kernel/unwind_orc.c:250 __save_stack_trace+0x7b/0xd0 arch/x86/kernel/stacktrace.c:45 save_stack+0x32/0xa0 mm/kasan/kasan.c:447 set_track mm/kasan/kasan.c:459 [inline] kasan_kmalloc mm/kasan/kasan.c:551 [inline] kasan_kmalloc+0xbf/0xe0 mm/kasan/kasan.c:529 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] kmem_cache_alloc+0x114/0x770 mm/slab.c:3550 skb_clone+0x11c/0x310 net/core/skbuff.c:1282 frame_get_tagged_skb net/hsr/hsr_forward.c:195 [inline] hsr_forward_do net/hsr/hsr_forward.c:283 [inline] hsr_forward_skb+0xf18/0x18ed net/hsr/hsr_forward.c:373 send_hsr_supervision_frame+0x8ec/0xf40 net/hsr/hsr_device.c:321 hsr_announce+0xf0/0x330 net/hsr/hsr_device.c:350 call_timer_fn+0x14a/0x650 kernel/time/timer.c:1279 expire_timers kernel/time/timer.c:1318 [inline] __run_timers kernel/time/timer.c:1636 [inline] __run_timers kernel/time/timer.c:1604 [inline] run_timer_softirq+0x52a/0x1390 kernel/time/timer.c:1649 __do_softirq+0x254/0x9bf kernel/softirq.c:288 invoke_softirq kernel/softirq.c:368 [inline] irq_exit+0x15b/0x1a0 kernel/softirq.c:409 exiting_irq arch/x86/include/asm/apic.h:648 [inline] smp_apic_timer_interrupt+0x141/0x5e0 arch/x86/kernel/apic/apic.c:1102 apic_timer_interrupt+0x8f/0xa0 arch/x86/entry/entry_64.S:792 RIP: 0010:preempt_schedule_irq+0xa6/0x140 kernel/sched/core.c:3611 RSP: 0018:ffff88820eb8fa60 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff10 RAX: 1ffffffff0fa2ce3 RBX: dffffc0000000000 RCX: 1ffff110038cf18c RDX: 0000000000000000 RSI: ffff88801c678c68 RDI: ffff88801c678c3c RBP: ffffed10038cf078 R08: 0000015b47dbe80f R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88801c6783c0 R13: ffffffff87d16718 R14: 0000000000000000 R15: 0000000000000000 retint_kernel+0x1b/0x2d RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:779 [inline] RIP: 0010:qlink_free mm/kasan/quarantine.c:150 [inline] RIP: 0010:qlist_free_all+0xfc/0x140 mm/kasan/quarantine.c:166 RSP: 0018:ffff88820eb8fb30 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff10 RAX: 0000000000000007 RBX: ffff88808ccb8ec0 RCX: 1ffff110038cf18c RDX: 0000000000000000 RSI: ffff88801c678c68 RDI: 0000000000000286 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff88808d125b00 R13: ffff88820eb8fb68 R14: ffff88812fe561c0 R15: 0000000000000286 quarantine_reduce+0x140/0x170 mm/kasan/quarantine.c:259 kasan_kmalloc+0x95/0xe0 mm/kasan/kasan.c:536 slab_post_alloc_hook mm/slab.h:442 [inline] slab_alloc mm/slab.c:3390 [inline] __do_kmalloc mm/slab.c:3718 [inline] __kmalloc+0x145/0x7c0 mm/slab.c:3729 kmalloc_array include/linux/slab.h:607 [inline] check_load_and_stores net/core/filter.c:683 [inline] bpf_check_classic net/core/filter.c:892 [inline] bpf_prepare_filter+0x29c/0xa70 net/core/filter.c:1082 __get_filter+0x196/0x240 net/core/filter.c:1301 sk_attach_filter+0x19/0x80 net/core/filter.c:1316 sock_setsockopt+0x10b9/0x1880 net/core/sock.c:927 SYSC_setsockopt net/socket.c:1861 [inline] SyS_setsockopt+0x1a4/0x1e0 net/socket.c:1844 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45c479 RSP: 002b:00007fbed1d48c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007fbed1d496d4 RCX: 000000000045c479 RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000004 RBP: 000000000076bf20 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020000140 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000a4f R14: 00000000004ccb87 R15: 000000000076bf2c