SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=20086 comm=syz-executor.5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=20082 comm=syz-executor.4 rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (1 GPs behind) idle=e5e/1/0x4000000000000004 softirq=33398/33400 fqs=5250 rcu: (t=10502 jiffies g=23981 q=1393) NMI backtrace for cpu 0 CPU: 0 PID: 20120 Comm: syz-executor.4 Not tainted 4.19.94-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x123/0x177 lib/dump_stack.c:118 nmi_cpu_backtrace.cold.4+0x3e/0x76 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0xe6/0x11a lib/nmi_backtrace.c:62 arch_trigger_cpumask_backtrace+0x14/0x20 arch/x86/kernel/apic/hw_nmi.c:38 trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline] rcu_dump_cpu_stacks+0x175/0x1c2 kernel/rcu/tree.c:1340 print_cpu_stall kernel/rcu/tree.c:1478 [inline] check_cpu_stall kernel/rcu/tree.c:1550 [inline] __rcu_pending kernel/rcu/tree.c:3293 [inline] rcu_pending kernel/rcu/tree.c:3336 [inline] rcu_check_callbacks.cold.82+0x5bd/0xd3d kernel/rcu/tree.c:2682 update_process_times+0x2a/0x60 kernel/time/timer.c:1638 tick_sched_handle+0x77/0x140 kernel/time/tick-sched.c:164 tick_sched_timer+0x37/0xf0 kernel/time/tick-sched.c:1274 __run_hrtimer kernel/time/hrtimer.c:1401 [inline] __hrtimer_run_queues+0x2f7/0xab0 kernel/time/hrtimer.c:1463 hrtimer_interrupt+0x2df/0x760 kernel/time/hrtimer.c:1521 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1067 [inline] smp_apic_timer_interrupt+0x114/0x540 arch/x86/kernel/apic/apic.c:1092 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:__raw_spin_unlock_irq include/linux/spinlock_api_smp.h:169 [inline] RIP: 0010:_raw_spin_unlock_irq+0x56/0x80 kernel/locking/spinlock.c:192 Code: f2 87 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 32 48 83 3d 7b c8 72 01 00 74 1f fb 66 0f 1f 44 00 00 01 00 00 00 e8 c0 2f c3 fa 65 8b 05 d9 ae 82 79 85 c0 74 05 5b RSP: 0018:ffff8880aea07de0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff8880aea23a00 RCX: 0000000000000000 RDX: 1ffffffff0fe40eb RSI: 0000000000000000 RDI: ffffffff87f20758 RBP: ffff8880aea07de8 R08: ffffed1015d44741 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880aea07e60 R13: dffffc0000000000 R14: ffffffff8533e850 R15: ffff8880aea23a00 expire_timers kernel/time/timer.c:1362 [inline] __run_timers kernel/time/timer.c:1684 [inline] run_timer_softirq+0xb58/0x1180 kernel/time/timer.c:1697 __do_softirq+0x260/0x92d kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x13e/0x540 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xaf/0xd0 kernel/locking/spinlock.c:184 Code: 48 07 f2 87 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 75 28 48 83 3d 70 c4 72 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb ad e8 80 15 81 fa eb bb 0f 0b 0f 0b e8 2a f0 11 RSP: 0018:ffff888061ee7428 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 0000000000000282 RCX: 0000000000000000 RDX: 1ffffffff0fe40e9 RSI: 0000000000000001 RDI: 0000000000000282 RBP: ffff888061ee7438 R08: fffffbfff13815ca R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff89c0ae48 R13: 0000000000000006 R14: ffff888061297000 R15: dffffc0000000000 __debug_check_no_obj_freed lib/debugobjects.c:798 [inline] debug_check_no_obj_freed+0x1ff/0x472 lib/debugobjects.c:817 free_pages_prepare mm/page_alloc.c:1055 [inline] __free_pages_ok+0x254/0xd90 mm/page_alloc.c:1273 free_compound_page+0x62/0x90 mm/page_alloc.c:594 free_transhuge_page+0x1e3/0x2b0 mm/huge_memory.c:2794 __put_compound_page+0x65/0xa0 mm/swap.c:96 release_pages+0x399/0x12e0 mm/swap.c:768 free_pages_and_swap_cache+0x17a/0x370 mm/swap_state.c:319 tlb_flush_mmu_free+0xb3/0x150 mm/memory.c:249 zap_pte_range mm/memory.c:1405 [inline] zap_pmd_range mm/memory.c:1440 [inline] zap_pud_range mm/memory.c:1469 [inline] zap_p4d_range mm/memory.c:1490 [inline] unmap_page_range+0xf8a/0x1890 mm/memory.c:1511 unmap_single_vma+0x121/0x300 mm/memory.c:1556 unmap_vmas+0xe7/0x1a0 mm/memory.c:1586 exit_mmap+0x251/0x450 mm/mmap.c:3091 __mmput kernel/fork.c:1005 [inline] mmput+0x107/0x3f0 kernel/fork.c:1026 exit_mm kernel/exit.c:546 [inline] do_exit+0x9c5/0x2d20 kernel/exit.c:867 do_group_exit+0xf4/0x2f0 kernel/exit.c:983 get_signal+0x313/0x1a00 kernel/signal.c:2578 do_signal+0x87/0x1960 arch/x86/kernel/signal.c:821 exit_to_usermode_loop+0x114/0x200 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x413/0x4e0 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x459a09 Code: Bad RIP value. RSP: 002b:00007f6286b74c78 EFLAGS: 00000246 ORIG_RAX: 000000000000012a RAX: 0000000000000003 RBX: 0000000000000005 RCX: 0000000000459a09 RDX: ffffffffffffffff RSI: 0000000000000000 RDI: 000000002001d000 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffffffffffff R11: 0000000000000246 R12: 00007f6286b756d4 R13: 00000000004c6855 R14: 00000000004dba68 R15: 00000000ffffffff