ip6_tunnel: ip6gretap0 xmit: Local address not yet configured! ip6_tunnel: ip6gretap0 xmit: Local address not yet configured! ip6_tunnel: ip6gretap0 xmit: Local address not yet configured! rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: 1-...!: (14 ticks this GP) idle=abfc/1/0x4000000000000000 softirq=18320/18324 fqs=2 rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P12/1:b..l P7415/1:b..l rcu: (detected by 0, t=10502 jiffies, g=14001, q=328 ncpus=2) Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 7416 Comm: syz.4.408 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline] RIP: 0010:rcu_is_watching+0xd/0xc0 kernel/rcu/tree.c:737 Code: 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 53 65 ff 05 9b 3b 84 7e 5e 32 aa 09 48 c7 c3 68 7f 03 00 83 f8 07 89 c5 0f 87 82 00 00 RSP: 0000:ffffc90000a18cd8 EFLAGS: 00000083 RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8175dcac RDX: fffffbfff20be6ab RSI: 0000000000000008 RDI: ffffffff905f3550 RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff20be6aa R10: ffffffff905f3557 R11: 0000000000000000 R12: 0000000000000000 R13: 000000000003d90c R14: 0000000000000000 R15: 0000000000000000 FS: 00007fa6e5c366c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2f90cff8 CR3: 0000000030d5a000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_lock_acquire+0x14e/0x1f0 include/trace/events/lock.h:24 lock_acquire+0x2f/0xb0 kernel/locking/lockdep.c:5820 rcu_lock_acquire include/linux/rcupdate.h:337 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] advance_sched+0x67f/0xc60 net/sched/sch_taprio.c:985 __run_hrtimer kernel/time/hrtimer.c:1739 [inline] __hrtimer_run_queues+0x20a/0xae0 kernel/time/hrtimer.c:1803 hrtimer_interrupt+0x392/0x8e0 kernel/time/hrtimer.c:1865 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 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702 RIP: 0010:finish_task_switch.isra.0+0x220/0xcc0 kernel/sched/core.c:5243 Code: a9 0a 00 00 44 8b 0d 73 9b f6 0e 45 85 c9 0f 85 c0 01 00 00 48 89 df e8 ae f8 ff ff e8 89 eb 38 00 fb 65 48 8b 1d e0 0b 9b 7e <48> 8d bb f8 15 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 RSP: 0000:ffffc900036274d0 EFLAGS: 00000206 RAX: 000000000000c8b1 RBX: ffff88805f1d4880 RCX: 1ffffffff20bde61 RDX: 0000000000000000 RSI: ffffffff8b6cd9e0 RDI: ffffffff8bd1ed60 RBP: ffffc90003627518 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff905f3557 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88807a3f0000 R14: 0000000000000000 R15: 0000000000000000 context_switch kernel/sched/core.c:5372 [inline] __schedule+0xe60/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_timeout+0x244/0x280 kernel/time/sleep_timeout.c:75 unix_wait_for_peer+0x247/0x280 net/unix/af_unix.c:1529 unix_dgram_sendmsg+0x180f/0x19e0 net/unix/af_unix.c:2131 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2583 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2637 __sys_sendmmsg+0x201/0x420 net/socket.c:2726 __do_sys_sendmmsg net/socket.c:2753 [inline] __se_sys_sendmmsg net/socket.c:2750 [inline] __x64_sys_sendmmsg+0x9c/0x100 net/socket.c:2750 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: 0033:0x7fa6e4d85d29 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa6e5c36038 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fa6e4f75fa0 RCX: 00007fa6e4d85d29 RDX: 0000000000000651 RSI: 0000000020000000 RDI: 0000000000000007 RBP: 00007fa6e4e01aa8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa6e4f75fa0 R15: 00007fff467572f8 task:syz.4.408 state:R running task stack:26048 pid:7415 tgid:7415 ppid:5826 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7078 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0010:xa_entry include/linux/xarray.h:1220 [inline] RIP: 0010:xas_descend lib/xarray.c:207 [inline] RIP: 0010:xas_load+0x177/0x5b0 lib/xarray.c:245 Code: 83 fc 40 4c 8b 75 00 44 89 e3 0f 87 07 04 00 00 49 8d 7c dd 28 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 <0f> 85 dd 03 00 00 48 83 c3 04 49 8b 5c dd 08 e8 e5 a4 01 00 31 ff RSP: 0000:ffffc90003487928 EFLAGS: 00000246 RAX: dffffc0000000000 RBX: 0000000000000017 RCX: 0000000000000006 RDX: 1ffff1100b6be38c RSI: ffffffff8b2814a7 RDI: ffff88805b5f1c60 RBP: ffffc90003487998 R08: 0000000000000001 R09: 000000000000003f R10: 0000000000000006 R11: 0000000000000001 R12: 0000000000000017 R13: ffff88805b5f1b80 R14: ffff88807c37d418 R15: 0000000000000000 filemap_get_entry+0x10a/0x3c0 mm/filemap.c:1841 __filemap_get_folio+0x59/0xaf0 mm/filemap.c:1886 filemap_get_folio include/linux/pagemap.h:770 [inline] filemap_fault+0x208/0x2820 mm/filemap.c:3323 __do_fault+0x10a/0x490 mm/memory.c:4907 do_shared_fault mm/memory.c:5386 [inline] do_fault mm/memory.c:5460 [inline] do_pte_missing+0x1a8/0x3e00 mm/memory.c:3979 handle_pte_fault mm/memory.c:5801 [inline] __handle_mm_fault+0x103c/0x2a40 mm/memory.c:5944 handle_mm_fault+0x3fa/0xaa0 mm/memory.c:6112 do_user_addr_fault+0x60d/0x13f0 arch/x86/mm/fault.c:1338 handle_page_fault arch/x86/mm/fault.c:1481 [inline] exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1539 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x7fa6e4c6609a RSP: 002b:00007fff46757350 EFLAGS: 00010202 RAX: 0000001b2f90d000 RBX: 00007fa6e5aa5720 RCX: 0000001b2f90cff8 RDX: 0000001b2f320220 RSI: 0000000000000008 RDI: 00007fa6e5aa5720 RBP: ffffffff8b24f9ae R08: 00007fa6e4f761f8 R09: 00007fa6e4f62000 R10: 00007fa6e3bfb008 R11: 0000000000000019 R12: 0000000000000019 R13: 0000000000000038 R14: ffffffff8b24f909 R15: 0000000000000054 task:kworker/u8:1 state:R running task stack:24656 pid:12 tgid:12 ppid:2 flags:0x00004000 Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7078 irqentry_exit+0x36/0x90 kernel/entry/common.c:354 asm_sysvec_reschedule_ipi+0x1a/0x20 arch/x86/include/asm/idtentry.h:707 RIP: 0010:debug_lockdep_rcu_enabled+0xe/0x40 kernel/rcu/update.c:320 Code: 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 8b 05 32 7c 35 05 85 c0 74 20 <8b> 05 70 ae 35 05 85 c0 74 16 65 48 8b 05 f0 1e da 74 8b 80 dc 0a RSP: 0018:ffffc90000117b58 EFLAGS: 00000202 RAX: 0000000000000002 RBX: 0000000000000000 RCX: ffffffff8af35f85 RDX: ffff88801cef4880 RSI: ffffffff8af35bdd RDI: 0000000000000001 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: dffffc0000000000 R13: ffff88805d4f8d80 R14: 0000000000000137 R15: ffff888033857440 rcu_read_unlock include/linux/rcupdate.h:878 [inline] batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:771 [inline] batadv_iv_ogm_schedule_buff+0x732/0x14d0 net/batman-adv/bat_iv_ogm.c:825 batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:868 [inline] batadv_iv_ogm_schedule net/batman-adv/bat_iv_ogm.c:861 [inline] batadv_iv_send_outstanding_bat_ogm_packet+0x31e/0x8d0 net/batman-adv/bat_iv_ogm.c:1712 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: rcu_preempt kthread starved for 10498 jiffies! g14001 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=0 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:28272 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0xe7/0x350 kernel/sched/core.c:6848 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 rcu: Stack dump where RCU GP kthread last ran: CPU: 0 UID: 0 PID: 1334 Comm: kworker/u8:6 Not tainted 6.13.0-rc4-syzkaller-00012-g9b2ffa6148b1 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound toggle_allocation_gate RIP: 0010:csd_lock_wait kernel/smp.c:340 [inline] RIP: 0010:smp_call_function_many_cond+0x458/0x1300 kernel/smp.c:884 Code: 0c 00 85 ed 74 4d 48 b8 00 00 00 00 00 fc ff df 4d 89 f4 4c 89 f5 49 c1 ec 03 83 e5 07 49 01 c4 83 c5 03 e8 ba 0e 0c 00 f3 90 <41> 0f b6 04 24 40 38 c5 7c 08 84 c0 0f 85 a7 0c 00 00 8b 43 08 31 RSP: 0018:ffffc90004e5f998 EFLAGS: 00000293 RAX: 0000000000000000 RBX: ffff8880b8744a40 RCX: ffffffff818e071c RDX: ffff8880287ac880 RSI: ffffffff818e06f6 RDI: 0000000000000005 RBP: 0000000000000003 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000006 R12: ffffed10170e8949 R13: 0000000000000001 R14: ffff8880b8744a48 R15: ffff8880b863fe40 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7e736a56c0 CR3: 000000000df7e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: on_each_cpu_cond_mask+0x40/0x90 kernel/smp.c:1051 on_each_cpu include/linux/smp.h:71 [inline] text_poke_sync arch/x86/kernel/alternative.c:2114 [inline] text_poke_bp_batch+0x22b/0x760 arch/x86/kernel/alternative.c:2324 text_poke_flush arch/x86/kernel/alternative.c:2515 [inline] text_poke_flush arch/x86/kernel/alternative.c:2512 [inline] text_poke_finish+0x30/0x40 arch/x86/kernel/alternative.c:2522 arch_jump_label_transform_apply+0x1c/0x30 arch/x86/kernel/jump_label.c:146 jump_label_update+0x1d7/0x400 kernel/jump_label.c:920 static_key_enable_cpuslocked+0x1b7/0x270 kernel/jump_label.c:210 static_key_enable+0x1a/0x20 kernel/jump_label.c:223 toggle_allocation_gate mm/kfence/core.c:849 [inline] toggle_allocation_gate+0xfc/0x260 mm/kfence/core.c:841 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229 process_scheduled_works kernel/workqueue.c:3310 [inline] worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244