ip6_tunnel: ip6gre1 xmit: Local address not yet configured! bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 0-...!: (1 GPs behind) idle=135c/1/0x4000000000000000 softirq=99972/99977 fqs=0 rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P26459/1:b..l rcu: (detected by 1, t=10506 jiffies, g=101801, q=286 ncpus=2) Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 26136 Comm: syz-executor Not tainted 6.14.0-rc6-syzkaller-00205-g3571e8b091f4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:timerqueue_add+0x1bd/0x330 lib/timerqueue.c:40 Code: 00 00 00 31 ff 44 89 f6 49 89 2f e8 8d 2f 66 f6 45 84 f6 0f 85 a9 00 00 00 e8 df 34 66 f6 48 8b 34 24 48 89 ef e8 13 8f ff ff <e8> ce 34 66 f6 44 89 f0 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f RSP: 0018:ffffc90000007df0 EFLAGS: 00000082 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffffff8b53bc18 RDX: 1ffff1100a3d9a68 RSI: ffff8880b862c7d0 RDI: ffff888051ecd340 RBP: ffff888051ecd340 R08: 0000000000000006 R09: ffff888051ecd340 R10: ffff888051ecd340 R11: 0000000000000004 R12: ffff888051ecd340 R13: ffff8880b862c780 R14: ffff8880b862c601 R15: ffffffff896ae3c0 FS: 0000555588f47500(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000400000000240 CR3: 000000003f50a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <NMI> </NMI> <IRQ> __run_hrtimer kernel/time/hrtimer.c:1818 [inline] __hrtimer_run_queues+0x903/0xae0 kernel/time/hrtimer.c:1865 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1927 local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline] __sysvec_apic_timer_interrupt+0x10f/0x400 arch/x86/kernel/apic/apic.c:1055 instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline] sysvec_apic_timer_interrupt+0x9f/0xc0 arch/x86/kernel/apic/apic.c:1049 </IRQ> <TASK> asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:mas_store+0x657/0x10d0 lib/maple_tree.c:5397 Code: 48 85 db 0f 85 c5 02 00 00 e8 45 0c 68 f6 4c 89 a4 24 c8 00 00 00 4c 8d a4 24 80 00 00 00 4c 89 e7 e8 bd 9c fc ff 48 8d 7d 40 <48> 89 fa 89 c3 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 RSP: 0018:ffffc90004967918 EFLAGS: 00000292 RAX: 0000000000000003 RBX: ffffc90004967ba8 RCX: ffffffff8b4e96bc RDX: ffff88807e9ea440 RSI: ffffffff8b4e8c61 RDI: ffffc90004967be8 RBP: ffffc90004967ba8 R08: 0000000000000006 R09: 00007f5ac67fcfff R10: 00007f5ac67fcfff R11: 0000000000000003 R12: ffffc90004967998 R13: ffffc90004967bd0 R14: 00007f5ac6ffffff R15: 00007f5ac67fcfff vma_iter_bulk_store include/linux/mm.h:1057 [inline] dup_mmap kernel/fork.c:724 [inline] dup_mm kernel/fork.c:1700 [inline] copy_mm kernel/fork.c:1752 [inline] copy_process+0x7acc/0x8c50 kernel/fork.c:2403 kernel_clone+0xfd/0x960 kernel/fork.c:2815 __do_sys_clone+0xcf/0x120 kernel/fork.c:2958 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5ac71839d3 Code: 1f 84 00 00 00 00 00 64 48 8b 04 25 10 00 00 00 45 31 c0 31 d2 31 f6 bf 11 00 20 01 4c 8d 90 d0 02 00 00 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 35 89 c2 85 c0 75 2c 64 48 8b 04 25 10 00 00 RSP: 002b:00007ffcfd3f7698 EFLAGS: 00000246 ORIG_RAX: 0000000000000038 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5ac71839d3 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011 RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001 R10: 0000555588f477d0 R11: 0000000000000246 R12: 0000000000000000 R13: 00000000000927c0 R14: 000000000008641e R15: 00007ffcfd3f7830 </TASK> task:syz.5.9343 state:R running task stack:27752 pid:26459 tgid:26458 ppid:22853 task_flags:0x40044c flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6944 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1772 [inline] zap_pmd_range mm/memory.c:1834 [inline] zap_pud_range mm/memory.c:1863 [inline] zap_p4d_range mm/memory.c:1884 [inline] unmap_page_range+0xee3/0x4350 mm/memory.c:1905 unmap_single_vma+0x194/0x2b0 mm/memory.c:1951 unmap_vmas+0x22f/0x490 mm/memory.c:1995 exit_mmap+0x1c1/0xba0 mm/mmap.c:1284 __mmput+0x12a/0x410 kernel/fork.c:1356 mmput+0x62/0x70 kernel/fork.c:1378 exit_mm kernel/exit.c:570 [inline] do_exit+0x9ba/0x2d70 kernel/exit.c:925 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 get_signal+0x24ed/0x26c0 kernel/signal.c:3036 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7ff7a958d169 RSP: 002b:00007ff7aa3be0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000001 RBX: 00007ff7a97a5fa8 RCX: 00007ff7a958d169 RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007ff7a97a5fac RBP: 00007ff7a97a5fa0 R08: 00007ff7aa3bf000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff7a97a5fac R13: 0000000000000000 R14: 00007ffe030fff60 R15: 00007ffe03100048 </TASK> rcu: rcu_preempt kthread starved for 10506 jiffies! g101801 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior. rcu: RCU grace-period kthread stack dump: task:rcu_preempt state:R running task stack:27696 pid:18 tgid:18 ppid:2 task_flags:0x208040 flags:0x00004000 Call Trace: <TASK> context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 __schedule_loop kernel/sched/core.c:6842 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6857 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2024 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2226 kthread+0x3af/0x750 kernel/kthread.c:464 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 </TASK> rcu: Stack dump where RCU GP kthread last ran: CPU: 1 UID: 0 PID: 26452 Comm: syz.0.9341 Not tainted 6.14.0-rc6-syzkaller-00205-g3571e8b091f4 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x4c6/0x12c0 kernel/smp.c:885 Code: 0c 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 fc 4c 89 fd 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 ac 0e 0c 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 e8 0b 00 00 8b 43 08 31 RSP: 0018:ffffc90003cffa40 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b8646a00 RCX: ffffffff81ade3da RDX: ffff888086334880 RSI: ffffffff81ade3b4 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000001 R12: ffffed10170c8d41 R13: 0000000000000001 R14: ffff8880b873fe80 R15: ffff8880b8646a08 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f71cff8 CR3: 000000000df80000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <IRQ> </IRQ> <TASK> on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1052 __flush_tlb_multi arch/x86/include/asm/paravirt.h:91 [inline] flush_tlb_multi arch/x86/mm/tlb.c:966 [inline] flush_tlb_mm_range+0x271/0x4a0 arch/x86/mm/tlb.c:1054 tlb_flush arch/x86/include/asm/tlb.h:20 [inline] tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:481 [inline] tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:471 [inline] tlb_flush_mmu mm/mmu_gather.c:395 [inline] tlb_finish_mmu+0x3c9/0x7b0 mm/mmu_gather.c:488 exit_mmap+0x40e/0xba0 mm/mmap.c:1297 __mmput+0x12a/0x410 kernel/fork.c:1356 mmput+0x62/0x70 kernel/fork.c:1378 exit_mm kernel/exit.c:570 [inline] do_exit+0x9ba/0x2d70 kernel/exit.c:925 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 __do_sys_exit_group kernel/exit.c:1098 [inline] __se_sys_exit_group kernel/exit.c:1096 [inline] __x64_sys_exit_group+0x3e/0x50 kernel/exit.c:1096 x64_sys_call+0x151f/0x1720 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fee3f78d169 Code: Unable to access opcode bytes at 0x7fee3f78d13f. RSP: 002b:00007fff70d9b068 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fee3f78d169 RDX: 0000000000000064 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00007fff70d9b0cc R08: 0000000470d9b15f R09: 00000000000927c0 R10: 0000000000000001 R11: 0000000000000246 R12: 0000000000000707 R13: 00000000000927c0 R14: 000000000008642a R15: 00007fff70d9b120 </TASK>