capability: warning: `syz-executor6' uses 32-bit capabilities (legacy support in use) INFO: rcu_sched detected stalls on CPUs/tasks: (detected by 1, t=120002 jiffies, g=13309, c=13308, q=49) All QSes seen, last rcu_sched kthread activity 120002 (4294877903-4294757901), jiffies_till_next_fqs=3, root ->qsmask 0x0 syz-executor0 R running task 58856 6630 4532 0x00000008 Call Trace: sched_show_task+0x610/0x740 kernel/sched/core.c:5346 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+0x277a/0x2ae0 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+0xc54/0x1630 kernel/time/hrtimer.c:1460 hrtimer_interrupt+0x451/0x13c0 kernel/time/hrtimer.c:1518 local_apic_timer_interrupt+0x6b/0x250 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:866 RIP: 0010:msan_get_shadow_origin_ptr+0x210/0x230 mm/kmsan/kmsan_instr.c:291 RSP: 0018:ffff88009a16f280 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: ffff88009a17f318 RBX: 0000000000000003 RCX: ffff880000000000 RDX: ffff88009a18f318 RSI: aaaaaaaaaaaab000 RDI: ffffea0000000000 RBP: ffff88009a16f280 R08: 0000000000000000 R09: 0000000000000002 R10: 0000000000000000 R11: ffffffff81174e40 R12: ffff88009a16f318 R13: 0000000000000000 R14: 0000000000000000 R15: ffff88009dab2618 __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+0x363/0x4e0 kernel/smp.c:302 smp_call_function_many+0x662/0xdf0 kernel/smp.c:434 smp_call_function kernel/smp.c:492 [inline] on_each_cpu+0xd6/0x170 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/0x1df0 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_jit_binary_lock_ro include/linux/filter.h:667 [inline] bpf_int_jit_compile+0x9017/0x9670 arch/x86/net/bpf_jit_comp.c:1271 bpf_prog_select_runtime+0x2a5/0xa20 kernel/bpf/core.c:1552 bpf_prog_load kernel/bpf/syscall.c:1333 [inline] __do_sys_bpf+0xdc99/0xea20 kernel/bpf/syscall.c:2073 __se_sys_bpf kernel/bpf/syscall.c:2035 [inline] __x64_sys_bpf+0xda/0x110 kernel/bpf/syscall.c:2035 do_syscall_64+0x15b/0x230 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x455a99 RSP: 002b:00007ffb96d97c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000141 RAX: ffffffffffffffda RBX: 00007ffb96d986d4 RCX: 0000000000455a99 RDX: 0000000000000048 RSI: 0000000020000340 RDI: 0000000000000005 RBP: 000000000072bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004bb7d5 R14: 00000000004c8508 R15: 0000000000000000 rcu_sched kthread starved for 120002 jiffies! g13309 c13308 f0x2 RCU_GP_WAIT_FQS(3) ->state=0x0 ->cpu=1 RCU grace-period kthread stack dump: rcu_sched R running task 61960 9 2 0x80000000 Call Trace: context_switch kernel/sched/core.c:2880 [inline] __schedule+0x651/0x770 kernel/sched/core.c:3524 schedule+0x1cc/0x2f0 kernel/sched/core.c:3568 schedule_timeout+0x3ef/0x580 kernel/time/timer.c:1801 rcu_gp_kthread+0x21e1/0x38d0 kernel/rcu/tree.c:2231 kthread+0x4db/0x6c0 kernel/kthread.c:241 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:413