bridge0: received packet on veth1_to_bridge with own address as source address (addr:be:19:03:7b:5c:e7, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P17271/1:b..l
rcu: (detected by 1, t=10513 jiffies, g=83325, q=2034 ncpus=2)
task:syz.3.3282 state:R running task stack:27008 pid:17271 tgid:17259 ppid:16178 task_flags:0x400140 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7284
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:memset_orig+0x60/0xb0 arch/x86/lib/memset_64.S:84
Code: 48 89 47 08 48 89 47 10 48 89 47 18 48 89 47 20 48 89 47 28 48 89 47 30 48 89 47 38 48 8d 7f 40 75 d8 0f 1f 84 00 00 00 00 00 <89> d1 83 e1 38 74 14 c1 e9 03 66 0f 1f 44 00 00 ff c9 48 89 07 48
RSP: 0018:ffffc90004497458 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffffc90004497558 RCX: 0000000000000000
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90004497558
RBP: 1ffffffff2234623 R08: ffffc90004497567 R09: 0000000000000000
R10: ffffc90004497558 R11: fffff52000892ead R12: dffffc0000000000
R13: ffffffff911a311a R14: ffffc90004497508 R15: ffffc90004497550
unwind_next_frame+0xd04/0x2550 arch/x86/kernel/unwind_orc.c:621
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+0x71/0x1f0 mm/page_owner.c:338
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__slab_free+0x274/0x2c0 mm/slub.c:5823
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:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
__kmalloc_cache_noprof+0x29f/0x600 mm/slub.c:5559
_kmalloc_noprof include/linux/slab.h:991 [inline]
_kzalloc_noprof include/linux/slab.h:1312 [inline]
bpf_prog_alloc_no_stats+0xd8/0x560 kernel/bpf/core.c:112
bpf_prog_alloc+0x3c/0x1a0 kernel/bpf/core.c:158
bpf_prog_load+0x7f8/0x1c20 kernel/bpf/syscall.c:3042
__sys_bpf+0xd0d/0xd90 kernel/bpf/syscall.c:6370
__do_sys_bpf kernel/bpf/syscall.c:6489 [inline]
__se_sys_bpf kernel/bpf/syscall.c:6486 [inline]
__x64_sys_bpf+0xba/0xd0 kernel/bpf/syscall.c:6486
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: 0033:0x7f870139e159
RSP: 002b:00007f86fedb0028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007f8701626360 RCX: 00007f870139e159
RDX: 0000000000000048 RSI: 0000200000000000 RDI: 0000000000000005
RBP: 00007f870143506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f87016263f8 R14: 00007f8701626360 R15: 00007ffe0c471ff8
rcu: rcu_preempt kthread starved for 427 jiffies! g83325 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->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:27496 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7284
__schedule_loop kernel/sched/core.c:7361 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7376
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9e/0x2b0 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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:0 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Workqueue: wg-kex-wg0 wg_packet_handshake_send_worker
RIP: 0010:in_softirq_really kernel/kcov.c:-1 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:179 [inline]
RIP: 0010:write_comp_data kernel/kcov.c:242 [inline]
RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x35/0xb0 kernel/kcov.c:310
Code: 0d f8 ce cd 11 65 48 8b 15 f8 ce cd 11 f7 c2 00 01 00 ff 74 2c 41 89 d0 41 81 e0 00 01 00 0f 41 81 f8 00 01 00 00 41 0f 95 c0 <81> fa 00 00 00 10 0f 93 c2 44 08 c2 75 5b 83 b9 3c 17 00 00 00 74
RSP: 0018:ffffc90000006808 EFLAGS: 00000246
RAX: ffffffff89b2889c RBX: 0000000008000400 RCX: ffff88801def0000
RDX: 8000000000000301 RSI: 0000000000000000 RDI: 0000000000000000
RBP: dffffc0000000000 R08: 0000000000000100 R09: 0000000000000002
R10: 0000000000004888 R11: 8000000000000300 R12: 0000612e4fdd09e9
R13: ffff8880985aa801 R14: ffff8880985aa780 R15: 1ffff110130b5503
FS: 0000000000000000(0000) GS:ffff888124cc5000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f86fe569ff8 CR3: 000000000eb48000 CR4: 00000000003526f0
Call Trace:
skb_is_decrypted include/linux/skbuff.h:1708 [inline]
sk_validate_xmit_skb net/core/dev.c:4064 [inline]
validate_xmit_skb+0x90c/0x1600 net/core/dev.c:4120
__dev_queue_xmit+0xb04/0x3820 net/core/dev.c:4948
dev_queue_xmit include/linux/netdevice.h:3459 [inline]
br_dev_queue_push_xmit+0x370/0x4b0 net/bridge/br_forward.c:67
NF_HOOK+0x64e/0x6e0 include/linux/netfilter.h:325
br_nf_post_routing+0xa51/0xee0 net/bridge/br_netfilter_hooks.c:964
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+0x23e/0x3f0 include/linux/netfilter.h:323
br_forward_finish+0xd3/0x130 net/bridge/br_forward.c:80
br_nf_hook_thresh net/bridge/br_netfilter_hooks.c:1165 [inline]
br_nf_forward_finish+0xa76/0xea0 net/bridge/br_netfilter_hooks.c:667
NF_HOOK+0x64e/0x6e0 include/linux/netfilter.h:325
br_nf_forward_ip+0x7e7/0xa30 net/bridge/br_netfilter_hooks.c:721
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+0x23e/0x3f0 include/linux/netfilter.h:323
__br_forward+0x41e/0x5d0 net/bridge/br_forward.c:130
deliver_clone net/bridge/br_forward.c:146 [inline]
maybe_deliver+0x373/0x5b0 net/bridge/br_forward.c:210
br_flood+0x142/0x650 net/bridge/br_forward.c:343
br_handle_frame_finish+0x1119/0x1950 net/bridge/br_input.c:229
br_nf_hook_thresh+0x3dd/0x4c0 net/bridge/br_netfilter_hooks.c:-1
br_nf_pre_routing_finish_ipv6+0x90c/0xc40 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:325 [inline]
br_nf_pre_routing_ipv6+0x382/0x6f0 net/bridge/br_netfilter_ipv6.c:183
nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
br_handle_frame+0x1329/0x1600 net/bridge/br_input.c:451
__netif_receive_skb_core+0x989/0x30c0 net/core/dev.c:6187
__netif_receive_skb_one_core net/core/dev.c:6298 [inline]
__netif_receive_skb net/core/dev.c:6413 [inline]
process_backlog+0x727/0x18b0 net/core/dev.c:6764
__napi_poll+0xaa/0x330 net/core/dev.c:7833
napi_poll net/core/dev.c:7896 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8053
handle_softirqs+0x226/0x860 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
hmac+0x2dc/0x3b0 drivers/net/wireguard/noise.c:333
kdf+0x12d/0x290 drivers/net/wireguard/noise.c:367
mix_dh drivers/net/wireguard/noise.c:413 [inline]
wg_noise_handshake_create_initiation+0x29e/0x810 drivers/net/wireguard/noise.c:550
wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:34 [inline]
wg_packet_handshake_send_worker+0x18c/0x370 drivers/net/wireguard/send.c:51
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
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