__nla_parse: 2 callbacks suppressed netlink: 11 bytes leftover after parsing attributes in process `syz-executor0'. rcu: INFO: rcu_preempt self-detected stall on CPU rcu: 0-....: (1 GPs behind) idle=106/1/0x4000000000000004 softirq=77832/77834 fqs=5237 rcu: (t=10500 jiffies g=102925 q=1565) NMI backtrace for cpu 0 CPU: 0 PID: 10527 Comm: syz-executor2 Not tainted 4.20.0+ #362 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+0x1d3/0x2c6 lib/dump_stack.c:113 nmi_cpu_backtrace.cold.4+0x63/0xa2 lib/nmi_backtrace.c:101 nmi_trigger_cpumask_backtrace+0x1c2/0x22c 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+0x16f/0x1bc kernel/rcu/tree.c:1211 print_cpu_stall.cold.68+0x218/0x40a kernel/rcu/tree.c:1348 check_cpu_stall kernel/rcu/tree.c:1422 [inline] rcu_pending kernel/rcu/tree.c:3018 [inline] rcu_check_callbacks+0xac1/0x1410 kernel/rcu/tree.c:2521 update_process_times+0x2d/0x70 kernel/time/timer.c:1635 tick_sched_handle+0x9f/0x180 kernel/time/tick-sched.c:161 tick_sched_timer+0x45/0x130 kernel/time/tick-sched.c:1271 __run_hrtimer kernel/time/hrtimer.c:1389 [inline] __hrtimer_run_queues+0x41c/0x10d0 kernel/time/hrtimer.c:1451 hrtimer_interrupt+0x313/0x780 kernel/time/hrtimer.c:1509 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1035 [inline] smp_apic_timer_interrupt+0x1a1/0x760 arch/x86/kernel/apic/apic.c:1060 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:get_current arch/x86/include/asm/current.h:15 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x8/0x50 kernel/kcov.c:100 Code: d0 72 1b 49 83 c1 01 4a 89 7c 10 e0 4a 89 74 10 e8 4a 89 54 10 f0 4a 89 4c d8 20 4c 89 08 5d c3 66 90 55 48 89 e5 48 8b 75 08 <65> 48 8b 04 25 40 ee 01 00 65 8b 15 c8 47 80 7e 81 e2 00 01 1f 00 RSP: 0000:ffff8880ae606cb8 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000302 RBX: 0000000000000000 RCX: ffffffff86c3b16c RDX: ffff88809a7b8908 RSI: ffffffff86c3b17a RDI: 0000000000000007 RBP: ffff8880ae606cb8 R08: ffff8880641740c0 R09: 0000000000000000 R10: 0000000000000000 R11: ffff8880641740c0 R12: ffff88809a7b8908 R13: dffffc0000000000 R14: ffff88809a7b8900 R15: 00000000ffffffff __xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2016 [inline] xfrm_policy_eval_candidates net/xfrm/xfrm_policy.c:2053 [inline] xfrm_policy_lookup_bytype+0xbfa/0xe70 net/xfrm/xfrm_policy.c:2113 xfrm_policy_lookup+0x7e/0x80 net/xfrm/xfrm_policy.c:2145 xfrm_bundle_lookup net/xfrm/xfrm_policy.c:2939 [inline] xfrm_lookup_with_ifid+0x972/0x2b80 net/xfrm/xfrm_policy.c:3080 xfrm_lookup net/xfrm/xfrm_policy.c:3172 [inline] xfrm_lookup_route+0x3c/0x1f0 net/xfrm/xfrm_policy.c:3183 ip_route_output_flow+0xb1/0xc0 net/ipv4/route.c:2582 ip_route_output_ports include/net/route.h:161 [inline] igmpv3_newpack+0x541/0x1430 net/ipv4/igmp.c:362 add_grhead.isra.29+0x235/0x300 net/ipv4/igmp.c:433 add_grec+0x106b/0x1350 net/ipv4/igmp.c:566 igmpv3_send_cr net/ipv4/igmp.c:657 [inline] igmp_ifc_timer_expire+0x6e4/0xbe0 net/ipv4/igmp.c:793 call_timer_fn+0x272/0x920 kernel/time/timer.c:1325 expire_timers kernel/time/timer.c:1362 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1681 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694 __do_softirq+0x30c/0xb2e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1062 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:766 [inline] RIP: 0010:lock_acquire+0x268/0x520 kernel/locking/lockdep.c:3844 Code: 00 00 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 44 02 00 00 48 83 3d 37 2a 0e 08 00 0f 84 c3 01 00 00 48 8b bd 20 ff ff ff 57 9d <0f> 1f 44 00 00 48 b8 00 00 00 00 00 fc ff df 48 01 c3 48 c7 03 00 RSP: 0000:ffff88808ab1f210 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: 1ffff11011563e47 RCX: 0000000000000000 RDX: 1ffffffff12e4966 RSI: 0000000000000000 RDI: 0000000000000286 RBP: ffff88808ab1f300 R08: ffff888064174988 R09: 0000000000000008 R10: 0000000000000028 R11: ffff8880641740c0 R12: ffff8880641740c0 R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:223 [inline] rcu_read_lock_sched include/linux/rcupdate.h:715 [inline] percpu_ref_put_many+0x94/0x260 include/linux/percpu-refcount.h:280 percpu_ref_put include/linux/percpu-refcount.h:301 [inline] css_put include/linux/cgroup.h:387 [inline] mem_cgroup_try_charge+0x639/0xe10 mm/memcontrol.c:5892 mem_cgroup_try_charge_delay+0x1d/0xa0 mm/memcontrol.c:5905 wp_page_copy+0x492/0x18a0 mm/memory.c:2270 do_wp_page+0x774/0x1690 mm/memory.c:2549 handle_pte_fault mm/memory.c:3781 [inline] __handle_mm_fault+0x2e90/0x5670 mm/memory.c:3889 handle_mm_fault+0x54f/0xc70 mm/memory.c:3926 do_user_addr_fault arch/x86/mm/fault.c:1475 [inline] __do_page_fault+0x5f6/0xd70 arch/x86/mm/fault.c:1541 do_page_fault+0xf2/0x7e0 arch/x86/mm/fault.c:1572 page_fault+0x1e/0x30 arch/x86/entry/entry_64.S:1143 RIP: 0033:0x46dc5e Code: ff 90 66 2e 0f 1f 84 00 00 00 00 00 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 81 ec 28 05 00 00 48 c7 c0 d4 ff ff ff 64 8b 00 <89> 85 5c fb ff ff 8b 87 c0 00 00 00 85 c0 0f 85 ee 00 00 00 c7 87 RSP: 002b:00007ffe109a0c20 EFLAGS: 00010202 RAX: 0000000000000006 RBX: 00007ffe109a1180 RCX: 0000000000000000 RDX: 00007ffe109a12f8 RSI: 00000000004bcecb RDI: 00007ffe109a1180 RBP: 00007ffe109a1170 R08: 0000000000000000 R09: 00007ffe109a12f8 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffe109a1430 R13: 00000000004bcecb R14: 00007ffe109a12f8 R15: 0000000000000001