bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P19429/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=67141, q=3825 ncpus=2)
task:syz.1.3702 state:R running task stack:26120 pid:19429 tgid:19421 ppid:16945 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0x15dd/0x52d0 kernel/sched/core.c:6908
preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7235
irqentry_exit+0x599/0x620 kernel/entry/common.c:239
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:deref_stack_reg+0x194/0x230 arch/x86/kernel/unwind_orc.c:422
Code: 39 c3 0f 96 c1 4d 39 c6 0f 97 c2 20 c2 20 ca 80 fa 01 75 46 49 8d 40 08 48 39 d8 0f 97 c1 4c 39 f0 0f 96 c0 20 c8 3c 01 75 30 <4c> 89 c7 49 89 f7 e8 11 08 00 00 49 89 c6 48 8b 5c 24 18 48 89 d8
RSP: 0018:ffffc9000c1ef380 EFLAGS: 00000202
RAX: ffffc9000c1efb01 RBX: ffffc9000c1e8000 RCX: 0000000000000001
RDX: ffffc9000c1ef4e8 RSI: dffffc0000000000 RDI: ffffc9000c1ef4a8
RBP: 1ffff9200183de95 R08: ffffc9000c1efb10 R09: 0000000000000000
R10: ffffc9000c1ef4f8 R11: fffff5200183dea1 R12: 1ffff9200183de96
R13: 1ffff9200183de97 R14: ffffc9000c1f0000 R15: ffffc9000c1ef4a8
unwind_next_frame+0x18c6/0x23c0 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: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:1433 [inline]
__free_frozen_pages+0xc2b/0xdb0 mm/page_alloc.c:2978
__slab_free+0x263/0x2b0 mm/slub.c:5576
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x97/0x100 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:4542 [inline]
slab_alloc_node mm/slub.c:4869 [inline]
kmem_cache_alloc_lru_noprof+0x2b8/0x640 mm/slub.c:4888
__d_alloc+0x37/0x6f0 fs/dcache.c:1740
d_alloc_pseudo+0x21/0xc0 fs/dcache.c:1871
alloc_path_pseudo fs/file_table.c:364 [inline]
alloc_file_pseudo+0xdd/0x240 fs/file_table.c:380
__anon_inode_getfile fs/anon_inodes.c:166 [inline]
__anon_inode_getfd fs/anon_inodes.c:283 [inline]
anon_inode_getfd+0xc8/0x1f0 fs/anon_inodes.c:307
bpf_prog_load+0x1604/0x1ae0 kernel/bpf/syscall.c:3123
__sys_bpf+0x618/0x950 kernel/bpf/syscall.c:6228
__do_sys_bpf kernel/bpf/syscall.c:6341 [inline]
__se_sys_bpf kernel/bpf/syscall.c:6339 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:6339
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x14d/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2a00f9c799
RSP: 002b:00007f2a01de1028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f2a01216180 RCX: 00007f2a00f9c799
RDX: 0000000000000094 RSI: 00002000000000c0 RDI: 0000000000000005
RBP: 00007f2a01032c99 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2a01216218 R14: 00007f2a01216180 R15: 00007ffff8f56808
rcu: rcu_preempt kthread starved for 1831 jiffies! g67141 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:27656 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0x15dd/0x52d0 kernel/sched/core.c:6908
__schedule_loop kernel/sched/core.c:6990 [inline]
schedule+0x164/0x360 kernel/sched/core.c:7005
schedule_timeout+0x158/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x312/0x11d0 kernel/rcu/tree.c:2095
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2297
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x51e/0xb90 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: 10211 Comm: kworker/u8:29 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
RIP: 0010:__lock_acquire+0x7a/0x2cf0 kernel/locking/lockdep.c:5103
Code: 00 00 41 89 cd 41 89 d6 8b 0d e2 39 c1 0c 85 c9 44 0f 44 c1 31 c9 48 3d 10 d4 df 93 41 0f 45 c8 89 4c 24 10 8b 0d 26 d9 85 18 <85> c9 0f 95 c0 83 fe 08 0f 92 c2 08 c2 0f 84 49 01 00 00 83 fe 01
RSP: 0018:ffffc90000a07818 EFLAGS: 00000006
RAX: ffffffff9a2b8c40 RBX: 0000000000000246 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e75e420
RBP: 0000000000000000 R08: 0000000000000000 R09: ffffffff8e75e420
R10: ffffc90000a07af8 R11: ffffffff81b0bfa0 R12: 0000000000000002
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888125560000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000200000372000 CR3: 000000000e54c000 CR4: 00000000003526f0
Call Trace:
lock_acquire+0xf0/0x2e0 kernel/locking/lockdep.c:5868
rcu_lock_acquire include/linux/rcupdate.h:312 [inline]
rcu_read_lock include/linux/rcupdate.h:850 [inline]
class_rcu_constructor include/linux/rcupdate.h:1193 [inline]
unwind_next_frame+0xc2/0x23c0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
kasan_save_free_info+0x46/0x50 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:253 [inline]
__kasan_slab_free+0x5c/0x80 mm/kasan/common.c:285
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2692 [inline]
slab_free mm/slub.c:6168 [inline]
kmem_cache_free+0x187/0x630 mm/slub.c:6298
skb_ext_reset include/linux/skbuff.h:5090 [inline]
skb_release_head_state+0x270/0x360 net/core/skbuff.c:1195
skb_release_all net/core/skbuff.c:1201 [inline]
__kfree_skb+0x24/0x210 net/core/skbuff.c:1217
kfree_skb_reason include/linux/skbuff.h:1322 [inline]
kfree_skb include/linux/skbuff.h:1331 [inline]
ip6_mc_input+0x8de/0xbd0 net/ipv6/ip6_input.c:593
ip_sabotage_in+0x1e1/0x270 net/bridge/br_netfilter_hooks.c:990
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:623
nf_hook include/linux/netfilter.h:273 [inline]
NF_HOOK+0x21f/0x3c0 include/linux/netfilter.h:316
__netif_receive_skb_one_core net/core/dev.c:6164 [inline]
__netif_receive_skb net/core/dev.c:6277 [inline]
netif_receive_skb_internal net/core/dev.c:6363 [inline]
netif_receive_skb+0x278/0xc50 net/core/dev.c:6422
NF_HOOK+0xa4/0x3a0 include/linux/netfilter.h:318
br_handle_frame_finish+0x14e2/0x1bb0 net/bridge/br_input.c:-1
br_nf_hook_thresh+0x3dd/0x4c0 net/bridge/br_netfilter_hooks.c:-1
br_nf_pre_routing_finish_ipv6+0xa3a/0xd70 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:318 [inline]
br_nf_pre_routing_ipv6+0x374/0x6f0 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
br_handle_frame+0x1277/0x1510 net/bridge/br_input.c:442
__netif_receive_skb_core+0x98f/0x31a0 net/core/dev.c:6051
__netif_receive_skb_one_core net/core/dev.c:6162 [inline]
__netif_receive_skb net/core/dev.c:6277 [inline]
process_backlog+0x76d/0x1950 net/core/dev.c:6628
__napi_poll+0xae/0x340 net/core/dev.c:7692
napi_poll net/core/dev.c:7755 [inline]
net_rx_action+0x627/0xf70 net/core/dev.c:7912
handle_softirqs+0x22a/0x870 kernel/softirq.c:622
do_softirq+0x76/0xd0 kernel/softirq.c:523
__local_bh_enable_ip+0xf8/0x130 kernel/softirq.c:450
blake2s_compress+0xf9/0x1eb0 lib/crypto/x86/blake2s.h:42
blake2s_update+0x14b/0x450 lib/crypto/blake2s.c:119
hmac+0x1fc/0x3b0 drivers/net/wireguard/noise.c:324
kdf+0xff/0x2b0 drivers/net/wireguard/noise.c:360
mix_dh drivers/net/wireguard/noise.c:413 [inline]
wg_noise_handshake_create_initiation+0x2bc/0x830 drivers/net/wireguard/noise.c:550
wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:34 [inline]
wg_packet_handshake_send_worker+0x18d/0x350 drivers/net/wireguard/send.c:51
process_one_work kernel/workqueue.c:3275 [inline]
process_scheduled_works+0xb02/0x1830 kernel/workqueue.c:3358
worker_thread+0xa50/0xfc0 kernel/workqueue.c:3439
kthread+0x388/0x470 kernel/kthread.c:436
ret_from_fork+0x51e/0xb90 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 3434 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
net_ratelimit: 3796 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:56:b1:2a:dc:9f:9e, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)