ip6_tunnel: ip6tnl1 xmit: Local address not yet configured! rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-....: (1 ticks this GP) idle=cb44/1/0x4000000000000000 softirq=56469/56469 fqs=2 rcu: hardirqs softirqs csw/system rcu: number: 9 10 7 rcu: cputime: 0 1 0 ==> 700(ms) rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5908/1:b..l rcu: (detected by 0, t=10505 jiffies, g=41517, q=1274 ncpus=2) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 5843 Comm: syz-executor Not tainted 6.16.0-rc4-syzkaller-00121-g80852774ba0a #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:mark_lock+0x9b/0x190 kernel/locking/lockdep.c:4734 Code: 00 75 19 90 48 c7 c7 54 35 b8 8d 48 c7 c6 e6 a5 a7 8d e8 d8 a4 e5 ff 90 0f 0b 90 90 90 31 c9 4c 89 fe 4c 89 f7 b8 01 00 00 00 <85> 69 60 74 10 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 49 RSP: 0018:ffffc90000a08a98 EFLAGS: 00000006 RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff9348e330 RDX: 0000000000000000 RSI: ffff88807c74e590 RDI: ffff88807c74da00 RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff84c801ea R10: ffffc90000a08cb0 R11: fffff52000141198 R12: 0000000000000002 R13: 0000000000000002 R14: ffff88807c74e590 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff888125d1d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000556c3651f5a0 CR3: 000000000df38000 CR4: 00000000003526f0 Call Trace: mark_usage kernel/locking/lockdep.c:4642 [inline] __lock_acquire+0x65a/0xd20 kernel/locking/lockdep.c:5194 lock_acquire+0x120/0x360 kernel/locking/lockdep.c:5871 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline] _raw_spin_lock_irqsave+0xa7/0xf0 kernel/locking/spinlock.c:162 debug_object_deactivate+0x9a/0x250 lib/debugobjects.c:873 debug_hrtimer_deactivate kernel/time/hrtimer.c:450 [inline] debug_deactivate+0x1d/0x200 kernel/time/hrtimer.c:490 __run_hrtimer kernel/time/hrtimer.c:1729 [inline] __hrtimer_run_queues+0x2b0/0xc60 kernel/time/hrtimer.c:1825 hrtimer_interrupt+0x45b/0xaa0 kernel/time/hrtimer.c:1887 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1039 [inline] __sysvec_apic_timer_interrupt+0x10b/0x410 arch/x86/kernel/apic/apic.c:1056 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline] sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1050 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__pte_needs_invert arch/x86/include/asm/pgtable-invert.h:18 [inline] RIP: 0010:protnone_mask arch/x86/include/asm/pgtable-invert.h:24 [inline] RIP: 0010:pte_pfn arch/x86/include/asm/pgtable.h:266 [inline] RIP: 0010:vm_normal_page+0x3e/0x230 mm/memory.c:590 Code: 49 89 fc e8 a4 6f b6 ff 31 ff 4c 89 fe e8 7a 74 b6 ff 4d 85 ff 0f 95 c3 4c 89 fe 48 83 e6 01 40 0f 94 c5 31 ff e8 62 74 b6 ff <40> 20 dd 40 0f b6 c5 48 f7 d8 4c 31 f8 48 c1 e8 0c 48 bb ff ff ff RSP: 0018:ffffc9000433f368 EFLAGS: 00000293 RAX: ffffffff8209ef1e RBX: ffffc9000433f801 RCX: ffff88807c74da00 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc9000433f600 R08: ffffea0001b44233 R09: 1ffffd4000368846 R10: dffffc0000000000 R11: fffff94000368847 R12: ffff888029553a00 R13: dffffc0000000000 R14: 00007fe990b2d000 R15: 800000006d109027 zap_present_ptes mm/memory.c:1558 [inline] do_zap_pte_range mm/memory.c:1691 [inline] zap_pte_range mm/memory.c:1735 [inline] zap_pmd_range mm/memory.c:1827 [inline] zap_pud_range mm/memory.c:1856 [inline] zap_p4d_range mm/memory.c:1877 [inline] unmap_page_range+0xe80/0x41c0 mm/memory.c:1898 unmap_single_vma mm/memory.c:1941 [inline] unmap_vmas+0x399/0x580 mm/memory.c:1985 exit_mmap+0x248/0xb50 mm/mmap.c:1284 __mmput+0x118/0x420 kernel/fork.c:1121 exit_mm+0x1da/0x2c0 kernel/exit.c:581 do_exit+0x648/0x22e0 kernel/exit.c:952 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105 get_signal+0x1286/0x1340 kernel/signal.c:3034 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x75/0x110 kernel/entry/common.c:111 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe991784b53 Code: Unable to access opcode bytes at 0x7fe991784b29. RSP: 002b:00007ffe09fde1b8 EFLAGS: 00000202 ORIG_RAX: 000000000000003d RAX: fffffffffffffe00 RBX: 00000000000016db RCX: 00007fe991784b53 RDX: 0000000040000000 RSI: 00007ffe09fde1cc RDI: 00000000ffffffff RBP: 00007ffe09fde1cc R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008 R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000 task:kworker/1:4 state:R running task stack:23368 pid:5908 tgid:5908 ppid:2 task_flags:0x4208060 flags:0x00004000 Workqueue: events_power_efficient gc_worker Call Trace: context_switch kernel/sched/core.c:5396 [inline] __schedule+0x16f5/0x4d00 kernel/sched/core.c:6785 preempt_schedule_irq+0xb5/0x150 kernel/sched/core.c:7108 irqentry_exit+0x6f/0x90 kernel/entry/common.c:307 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x90 kernel/kcov.c:313 Code: 7c 11 10 48 89 74 11 18 48 89 44 11 20 e9 d8 9f b1 09 cc 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 04 24 65 48 8b 14 25 08 30 a0 92 65 8b 0d 38 cd RSP: 0018:ffffc90004f1f918 EFLAGS: 00000246 RAX: 0000000000000001 RBX: ffff888023e00000 RCX: ffff88802fc68000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000 RBP: ffffc90004f1fa70 R08: ffffffff8fa1dcf7 R09: 1ffffffff1f43b9e R10: dffffc0000000000 R11: fffffbfff1f43b9f R12: 1ffff11005edb039 R13: ffff88802f6d81c8 R14: 0000000000000001 R15: 000000000001fc83 rcu_read_unlock include/linux/rcupdate.h:869 [inline] gc_worker+0xb2c/0x1380 net/netfilter/nf_conntrack_core.c:1606 process_one_work kernel/workqueue.c:3238 [inline] process_scheduled_works+0xade/0x17b0 kernel/workqueue.c:3321 worker_thread+0x8a0/0xda0 kernel/workqueue.c:3402 kthread+0x70e/0x8a0 kernel/kthread.c:464 ret_from_fork+0x3fc/0x770 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245