ip6_tunnel: ip6tnl1 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): P15540/1:b..l P15544/3:b..l P15516/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=66085, q=1143 ncpus=2)
task:syz.7.3102 state:R running task stack:26568 pid:15516 tgid:15513 ppid:15331 task_flags:0x40054c flags:0x00080004
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x1139/0x6150 kernel/sched/core.c:6863
preempt_schedule_notrace+0x62/0xe0 kernel/sched/core.c:7140
preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
rcu_is_watching+0x8e/0xc0 kernel/rcu/tree.c:752
rcu_read_unlock include/linux/rcupdate.h:895 [inline]
class_rcu_destructor include/linux/rcupdate.h:1195 [inline]
unwind_next_frame+0xa3b/0x20b0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_record_aux_stack+0xa7/0xc0 mm/kasan/generic.c:556
task_work_add+0x271/0x380 kernel/task_work.c:70
io_req_normal_work_add io_uring/io_uring.c:1292 [inline]
__io_req_task_work_add+0x57e/0x990 io_uring/io_uring.c:1303
io_req_task_work_add io_uring/io_uring.h:232 [inline]
io_req_task_queue io_uring/io_uring.c:1447 [inline]
io_queue_deferred+0x305/0x4c0 io_uring/io_uring.c:532
__io_submit_flush_completions+0x1310/0x1980 io_uring/io_uring.c:1542
io_submit_flush_completions io_uring/io_uring.h:239 [inline]
ctx_flush_and_put.constprop.0+0x9a/0x410 io_uring/io_uring.c:1092
io_handle_tw_list+0x429/0x580 io_uring/io_uring.c:1133
tctx_task_work_run+0x55/0x2d0 io_uring/io_uring.c:1181
tctx_task_work+0x7a/0xd0 io_uring/io_uring.c:1199
task_work_run+0x150/0x240 kernel/task_work.c:233
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0x87f/0x2bd0 kernel/exit.c:971
do_group_exit+0xd3/0x2a0 kernel/exit.c:1112
get_signal+0x2671/0x26d0 kernel/signal.c:3034
arch_do_signal_or_restart+0x8f/0x7e0 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:41 [inline]
exit_to_user_mode_loop+0x8c/0x540 kernel/entry/common.c:75
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:256 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:159 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:194 [inline]
do_syscall_64+0x4ee/0xf80 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd70998f749
RSP: 002b:00007fd70a8be0e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: fffffffffffffe00 RBX: 00007fd709be6188 RCX: 00007fd70998f749
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fd709be6188
RBP: 00007fd709be6180 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd709be6218 R14: 00007ffd627e5ff0 R15: 00007ffd627e60d8
task:syz.3.3157 state:R running task stack:26176 pid:15544 tgid:15539 ppid:5817 task_flags:0x400040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x1139/0x6150 kernel/sched/core.c:6863
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:7047
preempt_schedule_thunk+0x16/0x30 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]
filemap_map_pages+0x1194/0x1e00 mm/filemap.c:3931
do_fault_around mm/memory.c:5713 [inline]
do_read_fault mm/memory.c:5746 [inline]
do_fault+0x9cd/0x1ad0 mm/memory.c:5889
do_pte_missing mm/memory.c:4401 [inline]
handle_pte_fault mm/memory.c:6273 [inline]
__handle_mm_fault+0x1919/0x2bb0 mm/memory.c:6411
handle_mm_fault+0x3fe/0xad0 mm/memory.c:6580
faultin_page mm/gup.c:1126 [inline]
__get_user_pages+0x54e/0x3590 mm/gup.c:1428
populate_vma_page_range+0x267/0x3f0 mm/gup.c:1860
__mm_populate+0x1d8/0x380 mm/gup.c:1963
mm_populate include/linux/mm.h:3701 [inline]
vm_mmap_pgoff+0x37f/0x470 mm/util.c:586
ksys_mmap_pgoff+0x7d/0x5c0 mm/mmap.c:604
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:89 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:82 [inline]
__x64_sys_mmap+0x125/0x190 arch/x86/kernel/sys_x86_64.c:82
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f5858f749
RSP: 002b:00007f7f5939a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f7f587e6090 RCX: 00007f7f5858f749
RDX: 0000000000000003 RSI: 0000000000b36000 RDI: 0000200000000000
RBP: 00007f7f58613f91 R08: ffffffffffffffff R09: 00000000fffff000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7f587e6128 R14: 00007f7f587e6090 R15: 00007ffd96277de8
task:syz.3.3157 state:R running task stack:26856 pid:15540 tgid:15539 ppid:5817 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x1139/0x6150 kernel/sched/core.c:6863
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7190
irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x62/0x330 kernel/locking/lockdep.c:5872
Code: b4 18 12 83 f8 07 0f 87 a2 02 00 00 89 c0 48 0f a3 05 72 b8 ee 0e 0f 82 74 02 00 00 8b 35 0a e9 ee 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 89 b4 18 12 0f 85 ad 02 00 00 48 83 c4
RSP: 0018:ffffc9000eb776f8 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff8e3c9620 RCX: 00000000e941ec87
RDX: 0000000000000000 RSI: ffffffff8daa7dd4 RDI: ffffffff8bf2b380
RBP: 0000000000000002 R08: 00000000c3a67e29 R09: 000000009c3a67e2
R10: 0000000000000002 R11: ffff888045758b30 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:867 [inline]
class_rcu_constructor include/linux/rcupdate.h:1195 [inline]
kernfs_root+0x34/0x2a0 fs/kernfs/kernfs-internal.h:75
kernfs_root_is_locked fs/kernfs/kernfs-internal.h:109 [inline]
kernfs_rcu_name fs/kernfs/kernfs-internal.h:119 [inline]
kernfs_sd_compare fs/kernfs/dir.c:349 [inline]
kernfs_link_sibling+0x269/0x770 fs/kernfs/dir.c:380
kernfs_add_one+0x20a/0x840 fs/kernfs/dir.c:813
__kernfs_create_file+0x295/0x350 fs/kernfs/file.c:1086
sysfs_add_file_mode_ns+0x207/0x3c0 fs/sysfs/file.c:313
create_files fs/sysfs/group.c:82 [inline]
internal_create_group+0x597/0xf70 fs/sysfs/group.c:189
internal_create_groups+0x9d/0x150 fs/sysfs/group.c:229
setup_gid_attrs drivers/infiniband/core/sysfs.c:1162 [inline]
ib_setup_port_attrs+0x41f/0x600 drivers/infiniband/core/sysfs.c:1439
add_one_compat_dev+0x5b3/0x820 drivers/infiniband/core/device.c:1005
rdma_dev_init_net+0x30a/0x590 drivers/infiniband/core/device.c:1221
ops_init+0x1e2/0x5f0 net/core/net_namespace.c:137
setup_net+0x11d/0x3a0 net/core/net_namespace.c:446
copy_net_ns+0x351/0x7c0 net/core/net_namespace.c:581
create_new_namespaces+0x3ea/0xab0 kernel/nsproxy.c:130
unshare_nsproxy_namespaces+0xc0/0x1f0 kernel/nsproxy.c:226
ksys_unshare+0x45b/0xa40 kernel/fork.c:3171
__do_sys_unshare kernel/fork.c:3242 [inline]
__se_sys_unshare kernel/fork.c:3240 [inline]
__x64_sys_unshare+0x31/0x40 kernel/fork.c:3240
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f7f5858f749
RSP: 002b:00007f7f593bb038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f7f587e5fa0 RCX: 00007f7f5858f749
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000068040200
RBP: 00007f7f58613f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f7f587e6038 R14: 00007f7f587e5fa0 R15: 00007ffd96277de8
rcu: rcu_preempt kthread starved for 10506 jiffies! g66085 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:28656 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5256 [inline]
__schedule+0x1139/0x6150 kernel/sched/core.c:6863
__schedule_loop kernel/sched/core.c:6945 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:6960
schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1ea/0xaf0 kernel/rcu/tree.c:2083
rcu_gp_kthread+0x26d/0x380 kernel/rcu/tree.c:2285
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x983/0xb10 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:246
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 15535 Comm: syz.5.3155 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:__lock_acquire+0x30/0x2890 kernel/locking/lockdep.c:5081
Code: 41 54 55 53 65 4c 8b 25 06 e6 18 12 48 83 ec 70 8b 1d 58 1a ef 0e 48 8b 84 24 a8 00 00 00 48 89 04 24 65 48 8b 05 d8 e5 18 12 <48> 89 44 24 68 31 c0 85 db 0f 84 54 04 00 00 48 8b 07 49 89 fd 48
RSP: 0000:ffffc9000eba65c8 EFLAGS: 00000082
RAX: 584dc595dbcf8a00 RBX: 0000000000000001 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e3c9620
RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000002 R11: 0000000000010192 R12: ffff88802d58c980
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
FS: 0000555557426500(0000) GS:ffff8881248f5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd51eb15770 CR3: 00000000359b6000 CR4: 00000000003526f0
Call Trace:
lock_acquire kernel/locking/lockdep.c:5868 [inline]
lock_acquire+0x179/0x330 kernel/locking/lockdep.c:5825
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:867 [inline]
class_rcu_constructor include/linux/rcupdate.h:1195 [inline]
unwind_next_frame+0xd1/0x20b0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:56
kasan_save_track+0x14/0x30 mm/kasan/common.c:77
poison_kmalloc_redzone mm/kasan/common.c:397 [inline]
__kasan_kmalloc+0xaa/0xb0 mm/kasan/common.c:414
kmalloc_noprof include/linux/slab.h:957 [inline]
kzalloc_noprof include/linux/slab.h:1094 [inline]
set_mm_walk+0x1f8/0x270 mm/vmscan.c:3818
try_to_inc_max_seq+0xea/0xfa0 mm/vmscan.c:4043
get_nr_to_scan mm/vmscan.c:4827 [inline]
try_to_shrink_lruvec+0x735/0x9b0 mm/vmscan.c:4870
lru_gen_shrink_lruvec mm/vmscan.c:5023 [inline]
shrink_lruvec+0x312/0x2b00 mm/vmscan.c:5784
shrink_node_memcgs mm/vmscan.c:6020 [inline]
shrink_node+0x8a6/0x3bb0 mm/vmscan.c:6061
shrink_zones mm/vmscan.c:6300 [inline]
do_try_to_free_pages+0x362/0x1920 mm/vmscan.c:6362
try_to_free_mem_cgroup_pages+0x31b/0x740 mm/vmscan.c:6690
try_charge_memcg+0x42a/0xd30 mm/memcontrol.c:2388
try_charge mm/memcontrol.c:2530 [inline]
charge_memcg+0x8a/0x230 mm/memcontrol.c:4728
mem_cgroup_swapin_charge_folio+0xeb/0x470 mm/memcontrol.c:4814
__read_swap_cache_async+0x397/0x500 mm/swap_state.c:481
swap_cluster_readahead+0x432/0x770 mm/swap_state.c:646
swapin_readahead+0x160/0x1220 mm/swap_state.c:821
do_swap_page+0x962/0x64a0 mm/memory.c:4753
handle_pte_fault mm/memory.c:6276 [inline]
__handle_mm_fault+0x19cb/0x2bb0 mm/memory.c:6411
handle_mm_fault+0x3fe/0xad0 mm/memory.c:6580
do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1336
handle_page_fault arch/x86/mm/fault.c:1476 [inline]
exc_page_fault+0x64/0xc0 arch/x86/mm/fault.c:1532
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618
RIP: 0033:0x7fd51dc6f0c0
Code: 66 e6 fd ff 4c 8b 54 24 08 4c 8b 44 24 10 84 c0 0f 85 60 ff ff ff 80 7c 24 1f 00 75 0d 80 3d ce 2f 37 00 00 0f 85 70 01 00 00 <48> 83 7b 50 07 77 08 48 c7 43 50 08 00 00 00 8b 43 28 48 f7 d8 48
RSP: 002b:00007ffee90871c0 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 00007fd51eb15720 RCX: ffffffff845ec907
RDX: 0000000000000907 RSI: ffffffff845ec907 RDI: 0000000000000009
RBP: ffffffff845ec907 R08: 00007fd51dfe6038 R09: 00007fd51dfd2000
R10: 00007fd51d7ff008 R11: 0000000000000009 R12: 0000000000000009
R13: 000000000000002a R14: ffffffff845ec900 R15: 000000000000002a
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:fa:e9:a1:93:99:bd, vlan:0)