bridge0: received packet on veth1_to_bridge with own address as source address (addr:8a:46:95:4d:52:f6, 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 veth1_to_bridge with own address as source address (addr:8a:46:95:4d:52:f6, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:8a:46:95:4d:52:f6, vlan:0)
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): P17140/1:b..l
rcu: (detected by 1, t=10516 jiffies, g=96037, q=840 ncpus=2)
task:syz-executor state:R running task stack:22536 pid:17140 tgid:17140 ppid:17131 task_flags:0x400140 flags:0x00080000
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/0x920 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__sanitizer_cov_trace_pc+0x4/0x80 kernel/kcov.c:209
Code: 00 00 00 48 8b 3d 24 71 aa 0c 48 89 de 5b e9 23 5e 65 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa <48> 8b 04 24 65 48 8b 0d b8 e0 cc 12 65 48 8b 15 b8 e0 cc 12 f7 c2
RSP: 0018:ffffc900041ef748 EFLAGS: 00000293
RAX: ffffffff824316a3 RBX: dffffc0000000000 RCX: ffff88804dfd5dc0
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000020
RBP: 0000000000000002 R08: ffffffff824315be R09: 0000000000000000
R10: 000000000000000f R11: ffffffff81b2d4a0 R12: 0000000000000002
R13: 00000e000014e123 R14: ffffffff824315be R15: dffffc0000000000
__update_page_owner_free_handle+0x126/0x4a0 mm/page_owner.c:302
__reset_page_owner+0x85/0x1f0 mm/page_owner.c:339
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:361
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]
kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010
lsm_file_alloc security/security.c:171 [inline]
security_file_alloc+0x34/0x310 security/security.c:2406
init_file+0x90/0x2b0 fs/file_table.c:184
alloc_empty_file+0x74/0x1d0 fs/file_table.c:266
path_openat+0xa2/0x1d60 fs/namei.c:4986
do_file_open+0x23e/0x4a0 fs/namei.c:5029
do_sys_openat2+0x115/0x200 fs/open.c:1417
do_sys_open fs/open.c:1423 [inline]
__do_sys_openat fs/open.c:1439 [inline]
__se_sys_openat fs/open.c:1434 [inline]
__x64_sys_openat+0x138/0x170 fs/open.c:1434
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: 0033:0x7ff3f079d4fc
RSP: 002b:00007ffc603074c0 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000154 RCX: 00007ff3f079d4fc
RDX: 0000000000090800 RSI: 00007ff3f08351bd RDI: 00000000ffffff9c
RBP: 00007ffc6030756c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000078
R13: 0000000000000000 R14: 00000000000925f8 R15: 00007ffc603075c0
rcu: rcu_preempt kthread starved for 2842 jiffies! g96037 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:28104 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:
CPU: 1 UID: 0 PID: 9353 Comm: kworker/u8:19 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:nf_hook_bridge_pre net/bridge/br_input.c:273 [inline]
RIP: 0010:br_handle_frame+0x8c3/0x1600 net/bridge/br_input.c:453
Code: 89 f0 48 c1 e8 03 42 0f b6 04 28 84 c0 48 8b 5c 24 40 0f 85 09 06 00 00 41 80 26 f8 48 8b 44 24 38 42 c7 44 28 04 00 00 00 00 <66> 42 c7 44 28 08 00 00 ba 30 00 00 00 4c 89 ff 31 f6 e8 d6 32 83
RSP: 0018:ffffc90000a188a0 EFLAGS: 00000246
RAX: 1ffff92000143124 RBX: ffff88809962f790 RCX: ffff8880564a0000
RDX: 8000000000000100 RSI: 0000000000000100 RDI: 0000000000000000
RBP: ffffc90000a189f0 R08: 0000000000000100 R09: 1ffff1100f6d4405
R10: dffffc0000000000 R11: ffffed100f6d4406 R12: ffff88807dd68f48
R13: dffffc0000000000 R14: 0000000000000eaa R15: ffffc90000a18940
FS: 0000000000000000(0000) GS:ffff888123bd0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa08f9f34b8 CR3: 000000007512a000 CR4: 00000000003526f0
Call Trace:
__netif_receive_skb_core+0x989/0x30c0 net/core/dev.c:6222
__netif_receive_skb_one_core net/core/dev.c:6333 [inline]
__netif_receive_skb net/core/dev.c:6448 [inline]
process_backlog+0x727/0x18b0 net/core/dev.c:6799
__napi_poll+0xaa/0x330 net/core/dev.c:7868
napi_poll net/core/dev.c:7931 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8088
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/0x260 lib/crypto/blake2s.c:142
hmac+0x2dc/0x3b0 drivers/net/wireguard/noise.c:333
kdf+0xff/0x290 drivers/net/wireguard/noise.c:360
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