ip6_tunnel: ip6gre2 xmit: Local address not yet configured!
ip6_tunnel: ip6gre4 xmit: Local address not yet configured!
ip6_tunnel: ip6gre2 xmit: Local address not yet configured!
ip6_tunnel: ip6gre3 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): P11608/1:b..l.. P5613/1:b..l..
rcu: (detected by 0, t=10502 jiffies, g=106029, q=261 ncpus=2)
task:syz-executor state:R running task stack:21192 pid:5613 tgid:5613 ppid:1 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5584 [inline]
__schedule+0x1b47/0x5b40 kernel/sched/core.c:7387
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7667
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:524 [inline]
irqentry_exit+0x14f/0x920 kernel/entry/common.c:154
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:check_kcov_mode kernel/kcov.c:181 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x49/0x80 kernel/kcov.c:223
Code: 29 89 d6 81 e6 00 01 00 0f 81 fe 00 01 00 00 40 0f 95 c6 81 fa 00 00 00 10 0f 93 c2 40 08 f2 75 35 83 b9 44 17 00 00 00 74 2c <8b> 91 18 17 00 00 83 fa 02 75 21 48 8b 91 20 17 00 00 48 8b 32 48
RSP: 0018:ffffc900039c7aa0 EFLAGS: 00000246
RAX: ffffffff824666bb RBX: ffff88801be80000 RCX: ffff888079e38000
RDX: 8000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff8244b1b7 R09: 0000000000000000
R10: 000000000000000b R11: ffffffff81b33690 R12: 000000000003caaf
R13: dffffc0000000000 R14: ffff88813fe070f8 R15: 0000000000001000
lookup_page_ext mm/page_ext.c:253 [inline]
page_ext_lookup+0xfb/0x180 mm/page_ext.c:504
page_ext_iter_begin include/linux/page_ext.h:136 [inline]
__update_page_owner_free_handle+0x141/0x410 mm/page_owner.c:302
__reset_page_owner+0xd2/0x2a0 mm/page_owner.c:339
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1401 [inline]
__free_frozen_pages+0xc97/0xd90 mm/page_alloc.c:2952
__slab_free+0x269/0x2c0 mm/slub.c:5926
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:361
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4720 [inline]
slab_alloc_node mm/slub.c:5033 [inline]
kmem_cache_alloc_noprof+0x2b4/0x600 mm/slub.c:5047
alloc_filename fs/namei.c:147 [inline]
do_getname+0x2e/0x250 fs/namei.c:187
getname_flags fs/namei.c:230 [inline]
class_filename_flags_constructor include/linux/fs.h:2589 [inline]
user_path_at+0x2a/0x160 fs/namei.c:3669
ksys_umount fs/namespace.c:2141 [inline]
__do_sys_umount fs/namespace.c:2149 [inline]
__se_sys_umount fs/namespace.c:2147 [inline]
__x64_sys_umount+0xf6/0x170 fs/namespace.c:2147
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f783159f3d7
RSP: 002b:00007ffd2fa5b088 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: ffffffffffffffda RBX: 00007f7831634d23 RCX: 00007f783159f3d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd2fa5b140
RBP: 00007ffd2fa5b140 R08: 00007ffd2fa5c140 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd2fa5c1d0
R13: 00007f7831634d23 R14: 00000000000bf351 R15: 00007ffd2fa5c210
task:udevd state:R running task stack:26216 pid:11608 tgid:11608 ppid:4977 task_flags:0x400140 flags:0x00080800
Call Trace:
context_switch kernel/sched/core.c:5584 [inline]
__schedule+0x1b47/0x5b40 kernel/sched/core.c:7387
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7667
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:524 [inline]
irqentry_exit+0x14f/0x920 kernel/entry/common.c:154
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__read_once_word_nocheck+0x0/0x10 include/asm-generic/rwonce.h:67
Code: 89 e7 e8 93 00 c2 00 e9 1e fd ff ff 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <48> 8b 07 c3 cc cc cc cc cc cc cc cc cc cc cc cc 90 90 90 90 90 90
RSP: 0018:ffffc9000d7b70f0 EFLAGS: 00000202
RAX: ffffc9000d7b7e01 RBX: 1ffff92001af6e3d RCX: 0000000000000001
RDX: ffffc9000d7b7228 RSI: dffffc0000000000 RDI: ffffc9000d7b7e90
RBP: ffffc9000d7b0000 R08: ffffc9000d7b7e90 R09: 0000000000000000
R10: ffffc9000d7b7238 R11: fffff52001af6e49 R12: 1ffff92001af6e3e
R13: 1ffff92001af6e3f R14: ffffc9000d7b8000 R15: dffffc0000000000
deref_stack_reg+0x18e/0x220 arch/x86/kernel/unwind_orc.c:422
unwind_next_frame+0x19bd/0x2550 arch/x86/kernel/unwind_orc.c:-1
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:183
__reset_page_owner+0x73/0x2a0 mm/page_owner.c:338
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1401 [inline]
__free_frozen_pages+0xc97/0xd90 mm/page_alloc.c:2952
__slab_free+0x269/0x2c0 mm/slub.c:5926
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:361
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4720 [inline]
slab_alloc_node mm/slub.c:5033 [inline]
__do_kmalloc_node mm/slub.c:5530 [inline]
__kmalloc_noprof+0x302/0x710 mm/slub.c:5556
_kmalloc_noprof include/linux/slab.h:995 [inline]
_kzalloc_noprof include/linux/slab.h:1312 [inline]
tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
tomoyo_encode+0x2ad/0x570 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x5fa/0x640 security/tomoyo/realpath.c:283
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x229/0x470 security/tomoyo/file.c:776
security_file_open+0xa9/0x240 security/security.c:2785
do_dentry_open+0x495/0x1360 fs/open.c:977
vfs_open_consume+0x4a/0x350 fs/open.c:1131
do_open fs/namei.c:4875 [inline]
path_openat+0x14a6/0x1da0 fs/namei.c:5040
do_file_open+0x23e/0x4a0 fs/namei.c:5069
do_sys_openat2+0x115/0x200 fs/open.c:1442
do_sys_open fs/open.c:1448 [inline]
__do_sys_openat fs/open.c:1464 [inline]
__se_sys_openat fs/open.c:1459 [inline]
__x64_sys_openat+0x138/0x170 fs/open.c:1459
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9bd8ca7407
RSP: 002b:00007ffc80ad1b50 EFLAGS: 00000202 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f9bd941d880 RCX: 00007f9bd8ca7407
RDX: 0000000000080000 RSI: 00007ffc80ad1cd0 RDI: ffffffffffffff9c
RBP: 0000000000000008 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000559f1cf2c7f5
R13: 0000559f1cf2c7f5 R14: 0000000000000001 R15: 0000000000000000
rcu: rcu_preempt kthread starved for 3098 jiffies! g106029 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->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:27496 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5584 [inline]
__schedule+0x1b47/0x5b40 kernel/sched/core.c:7387
__schedule_loop kernel/sched/core.c:7464 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7479
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
kthread+0x38b/0x480 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: 12682 Comm: kworker/u8:9 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: wg-kex-wg2 wg_packet_handshake_send_worker
RIP: 0010:rcu_preempt_read_enter kernel/rcu/tree_plugin.h:389 [inline]
RIP: 0010:__rcu_read_lock+0x1b/0x60 kernel/rcu/tree_plugin.h:412
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 53 65 48 8b 1d 0b 40 e8 11 48 81 c3 c4 04 00 00 48 89 d8 48 c1 e8 03 <48> b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 18 ff 03 8b 03
RSP: 0018:ffffc90000a37f90 EFLAGS: 00000a07
RAX: 1ffff1100ff3ac50 RBX: ffff88807f9d6284 RCX: 8000000000000100
RDX: ffff88807f9d5dc0 RSI: 00000000000000a0 RDI: 00000000000000e0
RBP: ffffc90000a380f0 R08: 0000000000000100 R09: 0000000000000000
R10: ffffc90000a37fe0 R11: fffff52000147003 R12: ffff88807e620000
R13: ffffc90000a37fe0 R14: 00000000bb1414ab R15: 1ffff92000146ff8
FS: 0000000000000000(0000) GS:ffff888124dc1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000006000 CR3: 000000007f216000 CR4: 00000000003526f0
Call Trace:
rcu_read_lock include/linux/rcupdate.h:847 [inline]
__inet_dev_addr_type+0x152/0x560 net/ipv4/fib_frontend.c:241
ip_route_me_harder+0x45a/0xfe0 net/ipv4/netfilter.c:37
synproxy_send_tcp+0x332/0x670 net/netfilter/nf_synproxy_core.c:434
synproxy_send_client_synack+0x89b/0xde0 net/netfilter/nf_synproxy_core.c:487
nft_synproxy_eval_v4+0x362/0x4e0 net/netfilter/nft_synproxy.c:59
nft_synproxy_do_eval+0x389/0x5d0 net/netfilter/nft_synproxy.c:142
expr_call_ops_eval net/netfilter/nf_tables_core.c:237 [inline]
nft_do_chain+0x48d/0x1b10 net/netfilter/nf_tables_core.c:285
nft_do_chain_ipv4+0x195/0x290 net/netfilter/nft_chain_filter.c:24
nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:633
nf_hook include/linux/netfilter.h:280 [inline]
NF_HOOK+0x21f/0x3c0 include/linux/netfilter.h:323
NF_HOOK+0x336/0x3c0 include/linux/netfilter.h:325
__netif_receive_skb_one_core net/core/dev.c:6333 [inline]
__netif_receive_skb net/core/dev.c:6446 [inline]
process_backlog+0xa6b/0x18b0 net/core/dev.c:6797
__napi_poll+0xaa/0x330 net/core/dev.c:7866
napi_poll net/core/dev.c:7929 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8086
handle_softirqs+0x223/0x840 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
blake2s_compress+0xfa/0x1c00 lib/crypto/x86/blake2s.h:42
blake2s_final+0x10f/0x270 lib/crypto/blake2s.c:142
blake2s include/crypto/blake2s.h:166 [inline]
compute_mac1+0x184/0x200 drivers/net/wireguard/cookie.c:80
wg_cookie_add_mac_to_packet+0x57/0x1a0 drivers/net/wireguard/cookie.c:163
wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:35 [inline]
wg_packet_handshake_send_worker+0x1aa/0x370 drivers/net/wireguard/send.c:51
process_one_work kernel/workqueue.c:3495 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3578
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3659
kthread+0x38b/0x480 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
ip6_tunnel: ip6gre5 xmit: Local address not yet configured!