ip6_tunnel: ip6gre1 xmit: Local address not yet configured!
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5631/1:b..l P15879/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=83625, q=821783 ncpus=2)
task:syz.0.2508 state:R running task stack:26920 pid:15879 tgid:15870 ppid:5630 task_flags:0x40044c flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1840/0x57a0 kernel/sched/core.c:7189
preempt_schedule_common+0x82/0xd0 kernel/sched/core.c:7370
preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:169 [inline]
_raw_spin_unlock+0x3f/0x50 kernel/locking/spinlock.c:190
spin_unlock include/linux/spinlock.h:390 [inline]
zap_pte_range mm/memory.c:1964 [inline]
zap_pmd_range mm/memory.c:2020 [inline]
zap_pud_range mm/memory.c:2048 [inline]
zap_p4d_range mm/memory.c:2069 [inline]
__zap_vma_range+0x3e40/0x4c70 mm/memory.c:2109
unmap_vmas+0x390/0x550 mm/memory.c:2178
exit_mmap+0x293/0x9f0 mm/mmap.c:1300
__mmput+0x118/0x420 kernel/fork.c:1178
exit_mm+0x1e4/0x2b0 kernel/exit.c:582
do_exit+0x6cd/0x2360 kernel/exit.c:964
do_group_exit+0x22d/0x2f0 kernel/exit.c:1119
get_signal+0x121b/0x12c0 kernel/signal.c:3038
arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:64 [inline]
exit_to_user_mode_loop+0xa9/0x6b0 kernel/entry/common.c:98
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:318 [inline]
do_syscall_64+0x353/0x580 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9a04d9ce59
RSP: 002b:00007f9a05bf70e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007f9a05016278 RCX: 00007f9a04d9ce59
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f9a05016278
RBP: 00007f9a05016270 R08: 00007f9a05bf76c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007f9a05016308 R14: 00007ffeaf57b180 R15: 00007ffeaf57b268
task:syz-executor state:R running task stack:22448 pid:5631 tgid:5631 ppid:5627 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1840/0x57a0 kernel/sched/core.c:7189
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x8e0 kernel/entry/common.c:164
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:-1 [inline]
RIP: 0010:unwind_next_frame+0x1a50/0x2550 arch/x86/kernel/unwind_orc.c:694
Code: 08 49 8d 5e 10 48 89 d8 48 c1 e8 03 48 b9 00 00 00 00 00 fc ff df 80 3c 08 00 74 08 48 89 df e8 c6 c4 b9 00 48 8b 03 4d 39 fc <0f> 96 c1 4c 39 f8 0f 97 c2 20 ca 80 fa 01 0f 85 f4 00 00 00 49 8d
RSP: 0018:ffffc900042674a0 EFLAGS: 00000283
RAX: ffffc90004268000 RBX: ffffc90004267558 RCX: dffffc0000000000
RDX: ffffc90004267588 RSI: dffffc0000000000 RDI: ffffc90004267550
RBP: 1ffffffff21ec001 R08: ffffc90004267d80 R09: 0000000000000000
R10: ffffc90004267598 R11: fffff5200084ceb5 R12: ffffc90004260000
R13: ffffffff81769f7f R14: ffffc90004267548 R15: ffffc90004267d90
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
save_stack+0x122/0x230 mm/page_owner.c:165
__reset_page_owner+0x71/0x1f0 mm/page_owner.c:320
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1397 [inline]
__free_frozen_pages+0xc0d/0xd20 mm/page_alloc.c:2938
__slab_free+0x274/0x2c0 mm/slub.c:5613
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:406
kasan_kmalloc include/linux/kasan.h:263 [inline]
__do_kmalloc_node mm/slub.c:5296 [inline]
__kmalloc_noprof+0x358/0x750 mm/slub.c:5308
kmalloc_noprof include/linux/slab.h:954 [inline]
tomoyo_realpath_from_path+0xef/0x640 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x283/0x560 security/tomoyo/file.c:827
tomoyo_path_unlink+0xaa/0xf0 security/tomoyo/tomoyo.c:162
security_path_unlink+0x15f/0x330 security/security.c:1483
filename_unlinkat+0x349/0x610 fs/namei.c:5575
__do_sys_unlink fs/namei.c:5613 [inline]
__se_sys_unlink+0x2e/0x140 fs/namei.c:5610
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f6d09f9bf47
RSP: 002b:00007fff82d26fc8 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f6d09f9bf47
RDX: 00007fff82d26ff0 RSI: 00007fff82d27080 RDI: 00007fff82d27080
RBP: 00007fff82d27080 R08: 00007fff82d28080 R09: 00000000ffffffff
R10: 0000000000000100 R11: 0000000000000206 R12: 00007fff82d28110
R13: 00007f6d0a0321ca R14: 0000000000068a3d R15: 00007fff82d28150
rcu: rcu_preempt kthread starved for 729 jiffies! g83625 f0x2 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:27688 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5388 [inline]
__schedule+0x1840/0x57a0 kernel/sched/core.c:7189
__schedule_loop kernel/sched/core.c:7268 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7283
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2095
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
kthread+0x389/0x470 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5617 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/09/2026
RIP: 0010:kvm_steal_clock+0x9/0x160 arch/x86/kernel/kvm.c:415
Code: cc cc cc cc e8 68 aa 2f 0a 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 41 57 41 56 <41> 55 41 54 53 48 83 ec 10 89 fb e8 87 56 4f 00 48 63 db bf 08 00
RSP: 0018:ffffc90000a08c38 EFLAGS: 00000002
RAX: 0000000000000001 RBX: ffffffffffffffff RCX: 0000000080010001
RDX: 0000000000000001 RSI: ffffffff8c288600 RDI: 0000000000000001
RBP: 0000000000000000 R08: ffffffff9a47d81b R09: 1ffffffff348fb03
R10: dffffc0000000000 R11: fffffbfff348fb04 R12: 1ffff110170e518c
R13: dffffc0000000000 R14: 0000000000989680 R15: dffffc0000000000
FS: 000055556ee2c540(0000) GS:ffff88812539d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 0000000076d5a000 CR4: 00000000003526f0
Call Trace:
paravirt_steal_clock include/linux/sched/cputime.h:196 [inline]
steal_account_process_time kernel/sched/cputime.c:274 [inline]
account_other_time+0x133/0x280 kernel/sched/cputime.c:295
irqtime_account_process_tick+0x25/0x410 kernel/sched/cputime.c:393
update_process_times+0x24/0x2f0 kernel/time/timer.c:2473
tick_sched_handle kernel/time/tick-sched.c:298 [inline]
tick_nohz_handler+0x3fb/0x730 kernel/time/tick-sched.c:319
__run_hrtimer kernel/time/hrtimer.c:1930 [inline]
__hrtimer_run_queues+0x371/0xa10 kernel/time/hrtimer.c:1994
hrtimer_interrupt+0x448/0x910 kernel/time/hrtimer.c:2113
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1050 [inline]
__sysvec_apic_timer_interrupt+0x102/0x430 arch/x86/kernel/apic/apic.c:1067
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1061 [inline]
sysvec_apic_timer_interrupt+0xa1/0xc0 arch/x86/kernel/apic/apic.c:1061
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:179 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x47/0x80 kernel/locking/spinlock.c:198
Code: f7 e8 4d a0 f9 f5 f7 c3 00 02 00 00 74 05 e8 f0 26 25 f6 9c 58 a9 00 02 00 00 75 27 f7 c3 00 02 00 00 74 01 fb bf 01 00 00 00 94 2d eb f5 65 8b 05 cd e7 8f 07 85 c0 74 18 5b 41 5e c3 cc cc
RSP: 0018:ffffc90003987a38 EFLAGS: 00000206
RAX: 0000000000000006 RBX: 0000000000000246 RCX: 0000000080000001
RDX: 0000000000000007 RSI: ffffffff8dfad33e RDI: 0000000000000001
RBP: ffffc90003987ae0 R08: ffffffff903013f7 R09: 1ffffffff206027e
R10: dffffc0000000000 R11: fffffbfff206027f R12: ffff88801afeb540
R13: 0000000000000000 R14: ffff88801afeb540 R15: 0000000000000000
spin_unlock_irqrestore include/linux/spinlock.h:408 [inline]
__slab_free+0x222/0x2c0 mm/slub.c:-1
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4570 [inline]
slab_alloc_node mm/slub.c:4899 [inline]
kmem_cache_alloc_noprof+0x2b8/0x650 mm/slub.c:4906
lsm_file_alloc security/security.c:171 [inline]
security_file_alloc+0x34/0x310 security/security.c:2406
init_file+0x90/0x2b0 fs/file_table.c:184
alloc_empty_file+0x74/0x1d0 fs/file_table.c:266
alloc_file fs/file_table.c:396 [inline]
alloc_file_pseudo+0x155/0x240 fs/file_table.c:425
create_pipe_files+0x325/0x7c0 fs/pipe.c:944
__do_pipe_flags+0x46/0x1f0 fs/pipe.c:990
do_pipe2+0xaa/0x190 fs/pipe.c:1038
__do_sys_pipe2 fs/pipe.c:1056 [inline]
__se_sys_pipe2 fs/pipe.c:1054 [inline]
__x64_sys_pipe2+0x5a/0x70 fs/pipe.c:1054
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fcb4759be89
Code: 38 48 89 44 24 08 48 8d 44 24 20 48 89 44 24 10 eb aa e8 ea 34 00 00 66 2e 0f 1f 84 00 00 00 00 00 31 f6 b8 25 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 07 c3 66 0f 1f 44 00 00 48 c7 c2 e8 ff ff ff
RSP: 002b:00007ffdc6164ac8 EFLAGS: 00000246 ORIG_RAX: 0000000000000125
RAX: ffffffffffffffda RBX: 000055556ee40fc0 RCX: 00007fcb4759be89
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00007ffdc6164ae8
RBP: 00007ffdc61650a0 R08: 0000000000001a20 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdc6164ee0
R13: 000055556ee494c0 R14: 000055556ee4db00 R15: 00007ffdc6164c20