bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5849/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=18805, q=252861 ncpus=2)
task:syz-executor state:R running task stack:19736 pid:5849 tgid:5849 ppid:5837 task_flags:0x400140 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
preempt_schedule_irq+0xfe/0x1c0 kernel/sched/core.c:7090
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_next_frame+0x1734/0x23b0 arch/x86/kernel/unwind_orc.c:641
Code: 0f 85 5c 08 00 00 48 8b 44 24 68 0f b6 04 28 84 c0 0f 85 6b 08 00 00 41 0f b7 36 c1 ee 04 83 e6 0f 83 fe 04 0f 84 cd 00 00 00 <83> fe 01 0f 84 24 01 00 00 85 f6 0f 85 b0 02 00 00 48 8b 44 24 40
RSP: 0018:ffffc9000430f348 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffffc9000430f470 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffffc9000430f480
RBP: dffffc0000000000 R08: ffffc9000430f47f R09: 0000000000000000
R10: ffffc9000430f470 R11: fffff52000861e90 R12: ffffc9000430f420
R13: ffffc90004310000 R14: ffffffff90f6fce0 R15: ffffffff90f6fcdc
arch_stack_walk+0x11e/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x11a/0x1d0 kernel/stacktrace.c:122
save_stack+0xfc/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x1e0 mm/page_owner.c:308
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1262 [inline]
__free_frozen_pages+0xde8/0x10a0 mm/page_alloc.c:2725
discard_slab mm/slub.c:2730 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3199
put_cpu_partial+0x17e/0x250 mm/slub.c:3274
__slab_free+0x294/0x390 mm/slub.c:4526
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4161 [inline]
slab_alloc_node mm/slub.c:4210 [inline]
__do_kmalloc_node mm/slub.c:4340 [inline]
__kmalloc_noprof+0x238/0x4d0 mm/slub.c:4353
kmalloc_noprof include/linux/slab.h:909 [inline]
kzalloc_noprof include/linux/slab.h:1039 [inline]
tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
tomoyo_encode+0x26f/0x540 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x59e/0x5e0 security/tomoyo/realpath.c:283
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x2be/0x640 security/tomoyo/file.c:822
security_inode_getattr+0x130/0x330 security/security.c:2377
vfs_getattr fs/stat.c:243 [inline]
vfs_fstat fs/stat.c:265 [inline]
vfs_fstatat+0xa5/0x150 fs/stat.c:366
__do_sys_newfstatat fs/stat.c:532 [inline]
__se_sys_newfstatat fs/stat.c:526 [inline]
__x64_sys_newfstatat+0x11f/0x1a0 fs/stat.c:526
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xf3/0x210 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f34ae78c97a
RSP: 002b:00007fff8c65cf18 EFLAGS: 00000206 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f34ae78c97a
RDX: 00007fff8c65cf20 RSI: 00007f34ae84d222 RDI: 0000000000000003
RBP: 00007fff8c65cf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000001000 R11: 0000000000000206 R12: 0000000000000078
R13: 0000000000000000 R14: 0000000000035d21 R15: 00007fff8c65d070
rcu: rcu_preempt kthread starved for 328 jiffies! g18805 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:26976 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5382 [inline]
__schedule+0x1b88/0x5240 kernel/sched/core.c:6767
__schedule_loop kernel/sched/core.c:6845 [inline]
schedule+0x163/0x360 kernel/sched/core.c:6860
schedule_timeout+0x15b/0x2b0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2e1/0x1340 kernel/rcu/tree.c:2046
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2248
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 3830 Comm: kworker/u8:11 Not tainted 6.15.0-rc2-syzkaller-00258-g750d0ac001e8 #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: wg-kex-wg1 wg_packet_handshake_send_worker
RIP: 0010:rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
RIP: 0010:rcu_is_watching+0x3a/0xb0 kernel/rcu/tree.c:736
Code: e8 9b 82 87 0a 89 c3 83 f8 08 73 7a 49 bf 00 00 00 00 00 fc ff df 4c 8d 34 dd 10 bc 79 8e 4c 89 f0 48 c1 e8 03 42 80 3c 38 00 <74> 08 4c 89 f7 e8 dc cc 84 00 48 c7 c3 58 8b 69 93 49 03 1e 48 89
RSP: 0018:ffffc90000a073b0 EFLAGS: 00000246
RAX: 1ffffffff1cf3783 RBX: 0000000000000001 RCX: ffff888032bf0000
RDX: ffff888032bf0000 RSI: ffffffff8ca1b580 RDI: ffffffff8ca1b540
RBP: ffffc90000a07558 R08: ffffffff8ac910de R09: ffffc90000a07690
R10: ffffc90000a074c0 R11: fffff52000140e9e R12: ffff888027825800
R13: 0000000000000000 R14: ffffffff8e79bc18 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff88812509a000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd9aa98298 CR3: 000000000eb38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock_held_common kernel/rcu/update.c:109 [inline]
rcu_read_lock_held+0x15/0x50 kernel/rcu/update.c:349
__find_rr_leaf+0x397/0x8f0 net/ipv6/route.c:834
find_rr_leaf net/ipv6/route.c:890 [inline]
rt6_select net/ipv6/route.c:934 [inline]
fib6_table_lookup+0x410/0xbf0 net/ipv6/route.c:2230
ip6_pol_route+0x26d/0x15f0 net/ipv6/route.c:2266
pol_lookup_func include/net/ip6_fib.h:616 [inline]
fib6_rule_lookup+0x590/0x7a0 net/ipv6/fib6_rules.c:120
ip6_route_input_lookup net/ipv6/route.c:2335 [inline]
ip6_route_input+0x85b/0xda0 net/ipv6/route.c:2631
ip6_rcv_finish+0x140/0x3d0 net/ipv6/ip6_input.c:77
ip_sabotage_in+0x203/0x290 net/bridge/br_netfilter_hooks.c:993
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc8/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x29b/0x450 include/linux/netfilter.h:312
__netif_receive_skb_one_core net/core/dev.c:5887 [inline]
__netif_receive_skb+0x1ef/0x670 net/core/dev.c:6000
netif_receive_skb_internal net/core/dev.c:6086 [inline]
netif_receive_skb+0x1ea/0x890 net/core/dev.c:6145
NF_HOOK+0xa0/0x410 include/linux/netfilter.h:314
br_handle_frame_finish+0x188d/0x1f60 net/bridge/br_input.c:226
br_nf_hook_thresh+0x482/0x5a0 net/bridge/br_netfilter_hooks.c:1170
br_nf_pre_routing_finish_ipv6+0xaa3/0xdd0 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x397/0x790 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:282 [inline]
br_handle_frame+0x9fa/0x1530 net/bridge/br_input.c:433
__netif_receive_skb_core+0x155a/0x4bb0 net/core/dev.c:5773
__netif_receive_skb_one_core net/core/dev.c:5885 [inline]
__netif_receive_skb+0x130/0x670 net/core/dev.c:6000
process_backlog+0x664/0x15c0 net/core/dev.c:6352
__napi_poll+0xcb/0x480 net/core/dev.c:7324
napi_poll net/core/dev.c:7388 [inline]
net_rx_action+0x89d/0x1240 net/core/dev.c:7510
handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579
do_softirq+0x11f/0x1e0 kernel/softirq.c:480
__local_bh_enable_ip+0x1be/0x200 kernel/softirq.c:407
local_bh_enable include/linux/bottom_half.h:33 [inline]
fpregs_unlock arch/x86/include/asm/fpu/api.h:77 [inline]
kernel_fpu_end+0x103/0x150 arch/x86/kernel/fpu/core.c:460
blake2s_compress+0x5f/0xd0 arch/x86/crypto/blake2s-glue.c:49
blake2s_update+0x135/0x420 lib/crypto/blake2s.c:32
hmac+0x669/0x9d0 drivers/net/wireguard/noise.c:332
kdf drivers/net/wireguard/noise.c:360 [inline]
message_ephemeral+0x2cd/0x4e0 drivers/net/wireguard/noise.c:493
wg_noise_handshake_create_initiation+0x297/0xcb0 drivers/net/wireguard/noise.c:545
wg_packet_send_handshake_initiation drivers/net/wireguard/send.c:34 [inline]
wg_packet_handshake_send_worker+0x16b/0x330 drivers/net/wireguard/send.c:51
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xac3/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd50 kernel/workqueue.c:3400
kthread+0x7b7/0x940 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 8208 callbacks suppressed
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)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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)
net_ratelimit: 9196 callbacks suppressed
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, 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)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)