INFO: rcu_sched detected stalls on CPUs/tasks: (detected by 1, t=120002 jiffies, g=24752, c=24751, q=141) All QSes seen, last rcu_sched kthread activity 120002 (4294934797-4294814795), jiffies_till_next_fqs=3, root ->qsmask 0x0 syz-executor3 R running task 60248 9807 4577 0x00000008 Call Trace: sched_show_task+0x600/0x730 kernel/sched/core.c:5329 print_other_cpu_stall kernel/rcu/tree.c:1481 [inline] check_cpu_stall kernel/rcu/tree.c:1599 [inline] __rcu_pending kernel/rcu/tree.c:3356 [inline] rcu_pending kernel/rcu/tree.c:3401 [inline] rcu_check_callbacks+0x26d7/0x2a00 kernel/rcu/tree.c:2763 update_process_times+0x132/0x1a0 kernel/time/timer.c:1636 tick_sched_handle kernel/time/tick-sched.c:164 [inline] tick_sched_timer+0x3ba/0x520 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1398 [inline] __hrtimer_run_queues+0xc03/0x15d0 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt+0x66/0x230 arch/x86/kernel/apic/apic.c:1025 smp_apic_timer_interrupt+0x5a/0x90 arch/x86/kernel/apic/apic.c:1053 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:863 RIP: 0010:msan_get_shadow_origin_ptr+0x203/0x230 mm/kmsan/kmsan_instr.c:291 RSP: 0018:ffff8801c5faf410 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: ffff8801ace0f4d8 RBX: ffff8801ae23f4d8 RCX: ffff880000000000 RDX: ffff8801ae23f4d8 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 RBP: ffff8801c5faf440 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801ae23f4d8 R13: 000000000aa3e1a0 R14: ffff8801ace0f4d8 R15: 00000000000004d8 __msan_metadata_ptr_for_load_4+0x10/0x20 mm/kmsan/kmsan_instr.c:320 csd_lock_wait kernel/smp.c:108 [inline] smp_call_function_single+0x373/0x4f0 kernel/smp.c:302 smp_call_function_many+0x65d/0xde0 kernel/smp.c:434 smp_call_function kernel/smp.c:492 [inline] on_each_cpu+0xd6/0x160 kernel/smp.c:602 flush_tlb_kernel_range+0x165/0x1e0 arch/x86/mm/tlb.c:683 __purge_vmap_area_lazy+0x1f7/0x3b0 mm/vmalloc.c:696 vm_unmap_aliases+0x627/0x6c0 mm/vmalloc.c:1121 change_page_attr_set_clr+0x5bc/0x1e00 arch/x86/mm/pageattr.c:1473 change_page_attr_clear arch/x86/mm/pageattr.c:1533 [inline] set_memory_ro+0xd0/0x100 arch/x86/mm/pageattr.c:1762 bpf_prog_lock_ro include/linux/filter.h:651 [inline] bpf_prog_select_runtime+0x3a5/0xa40 kernel/bpf/core.c:1514 bpf_migrate_filter net/core/filter.c:1069 [inline] bpf_prepare_filter+0x1a96/0x1b10 net/core/filter.c:1117 __get_filter+0x5b7/0x7d0 net/core/filter.c:1310 sk_attach_filter+0x72/0x2e0 net/core/filter.c:1325 sock_setsockopt+0x336e/0x46f0 net/core/sock.c:928 __sys_setsockopt+0x33e/0x560 net/socket.c:1899 __do_sys_setsockopt net/socket.c:1914 [inline] __se_sys_setsockopt net/socket.c:1911 [inline] __x64_sys_setsockopt+0x15c/0x1c0 net/socket.c:1911 do_syscall_64+0x154/0x220 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x455a09 RSP: 002b:00007efcb0e67c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007efcb0e686d4 RCX: 0000000000455a09 RDX: 000000000000001a RSI: 0000000000000001 RDI: 0000000000000013 RBP: 000000000072bea0 R08: 0000000000000010 R09: 0000000000000000 R10: 0000000020b86000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000005de R14: 00000000006fcd70 R15: 0000000000000000 rcu_sched kthread starved for 120002 jiffies! g24752 c24751 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=0 RCU grace-period kthread stack dump: rcu_sched R running task 61984 9 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2863 [inline] __schedule+0x66e/0x730 kernel/sched/core.c:3507 schedule+0x1cc/0x2f0 kernel/sched/core.c:3551 schedule_timeout+0x3e7/0x570 kernel/time/timer.c:1801 rcu_gp_kthread+0x21e1/0x38d0 kernel/rcu/tree.c:2231 kthread+0x4e3/0x6d0 kernel/kthread.c:241 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:412