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:92:ea:f0:10:fa:2a, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5848/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=19625, q=1269 ncpus=2)
task:syz-executor state:R running task stack:20544 pid:5848 tgid:5848 ppid:5839 task_flags:0x400140 flags:0x00000002
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+0x190/0x23b0 arch/x86/kernel/unwind_orc.c:494
Code: 1a 00 00 f6 03 03 0f 85 bf 18 00 00 4c 89 24 24 4d 8d 74 24 35 4c 89 f5 48 c1 ed 03 42 0f b6 44 2d 00 84 c0 0f 85 7d 1a 00 00 <4d> 0f be 26 48 8b 44 24 38 42 80 3c 28 00 48 8b 5c 24 10 74 08 48
RSP: 0018:ffffc90003fb71a8 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffff88807bac5a00
RDX: 0000000000000000 RSI: ffffffff8ca1c5a0 RDI: ffffffff8ca1c560
RBP: 1ffff920007f6e56 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffc90003fb7280
R13: dffffc0000000000 R14: ffffc90003fb72b5 R15: ffffffff816d9bc8
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:1258 [inline]
__free_frozen_pages+0xdee/0x10b0 mm/page_alloc.c:2721
__slab_free+0x2c6/0x390 mm/slub.c:4567
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]
kmem_cache_alloc_lru_noprof+0x1e5/0x390 mm/slub.c:4229
__d_alloc+0x31/0x740 fs/dcache.c:1681
d_alloc_anon fs/dcache.c:1778 [inline]
d_alloc_cursor+0x44/0xd0 fs/dcache.c:1784
dcache_dir_open+0x41/0x80 fs/libfs.c:91
do_dentry_open+0xdec/0x1960 fs/open.c:956
vfs_open+0x3b/0x370 fs/open.c:1086
do_open fs/namei.c:3845 [inline]
path_openat+0x2caf/0x35d0 fs/namei.c:4004
do_filp_open+0x284/0x4e0 fs/namei.c:4031
do_sys_openat2+0x12b/0x1d0 fs/open.c:1429
do_sys_open fs/open.c:1444 [inline]
__do_sys_openat fs/open.c:1460 [inline]
__se_sys_openat fs/open.c:1455 [inline]
__x64_sys_openat+0x249/0x2a0 fs/open.c:1455
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: 0033:0x7f596d78da61
RSP: 002b:00007ffd6a0acd60 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000135 RCX: 00007f596d78da61
RDX: 0000000000090800 RSI: 00007f596d810d88 RDI: 00000000ffffff9c
RBP: 00007ffd6a0ace0c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000287 R12: 000000000000006c
R13: 0000000000000000 R14: 000000000002761e R15: 00007ffd6a0ace60
rcu: rcu_preempt kthread starved for 10008 jiffies! g19625 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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: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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5855 Comm: kworker/u9:4 Not tainted 6.15.0-rc2-syzkaller-00657-g0e0a7e3719bc #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: hci4 hci_cmd_work
RIP: 0010:find_held_lock kernel/locking/lockdep.c:-1 [inline]
RIP: 0010:__lock_release kernel/locking/lockdep.c:5533 [inline]
RIP: 0010:lock_release+0x12b/0x3e0 kernel/locking/lockdep.c:5887
Code: ad f0 0a 00 00 49 63 dc 83 fb 31 0f 83 40 02 00 00 4c 8d 34 9b 4a 8d 6c f5 00 48 89 ef 4c 89 fe e8 fa 1f 8e 0a 44 89 64 24 0c <44> 89 e3 85 c0 74 69 48 85 ed 0f 84 a2 00 00 00 83 7d 24 00 0f 85
RSP: 0018:ffffc90000006fb8 EFLAGS: 00000046
RAX: 0000000000000001 RBX: 0000000000000004 RCX: ffff88806025da00
RDX: 0000000000010100 RSI: ffff8880b86276d8 RDI: ffff88806025e590
RBP: ffff88806025e590 R08: ffffffff81b0034d R09: 0000000000000000
R10: ffff88805fa6e340 R11: ffffed100bf4dc6b R12: 0000000000000004
R13: ffff88806025da00 R14: 0000000000000014 R15: ffff8880b86276d8
FS: 0000000000000000(0000) GS:ffff888124faa000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcad3f8ec0 CR3: 000000000eb38000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:149 [inline]
_raw_spin_unlock_irqrestore+0x7a/0x140 kernel/locking/spinlock.c:194
hrtimer_interrupt+0x5ad/0xa40 kernel/time/hrtimer.c:1897
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1038 [inline]
__sysvec_apic_timer_interrupt+0x110/0x420 arch/x86/kernel/apic/apic.c:1055
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0x52/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_is_held_type+0x148/0x1a0 arch/x86/include/asm/irqflags.h:-1
Code: 07 83 f8 01 75 40 48 c7 04 24 00 00 00 00 9c 8f 04 24 f7 04 24 00 02 00 00 75 48 41 f7 c5 00 02 00 00 74 01 fb 65 48 8b 45 00 <48> 3b 44 24 08 75 42 89 d8 48 83 c4 10 5b 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffffc900000072c8 EFLAGS: 00000206
RAX: e6587c8f116f3900 RBX: 0000000000000001 RCX: 0000000080000100
RDX: ffff88806025da00 RSI: ffffffff8e4d86fb RDI: ffffffff8ca1c5c0
RBP: ffffffff93676020 R08: ffffffff8af8ecf4 R09: ffffffff8a36e97c
R10: 0000000000000004 R11: ffff88806025da00 R12: ffff88806025da00
R13: 0000000000000246 R14: 00000000ffffffff R15: ffffffff8ed3df20
nf_get_ipv6_ops include/linux/netfilter_ipv6.h:76 [inline]
br_nf_pre_routing_finish_ipv6+0x13d/0xdd0 net/bridge/br_netfilter_ipv6.c:106
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:283 [inline]
br_handle_frame+0x9fa/0x1530 net/bridge/br_input.c:434
__netif_receive_skb_core+0x155a/0x4bb0 net/core/dev.c:5827
__netif_receive_skb_one_core net/core/dev.c:5939 [inline]
__netif_receive_skb+0x130/0x670 net/core/dev.c:6054
process_backlog+0x664/0x15c0 net/core/dev.c:6406
__napi_poll+0xcb/0x480 net/core/dev.c:7378
napi_poll net/core/dev.c:7442 [inline]
net_rx_action+0x89d/0x1240 net/core/dev.c:7564
handle_softirqs+0x2d6/0x9b0 kernel/softirq.c:579
__do_softirq kernel/softirq.c:613 [inline]
invoke_softirq kernel/softirq.c:453 [inline]
__irq_exit_rcu+0xfb/0x220 kernel/softirq.c:680
irq_exit_rcu+0x9/0x30 kernel/softirq.c:696
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1049 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x5d/0x70 kernel/kcov.c:235
Code: 18 16 00 00 83 fa 02 75 21 48 8b 91 20 16 00 00 48 8b 32 48 8d 7e 01 8b 89 1c 16 00 00 48 39 cf 73 08 48 89 3a 48 89 44 f2 08 cc cc cc cc 66 66 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90
RSP: 0018:ffffc90004017948 EFLAGS: 00000293
RAX: ffffffff816f3671 RBX: ffff888032136200 RCX: ffff88806025da00
RDX: 0000000000000000 RSI: ffff888032136200 RDI: ffff888032136200
RBP: 0000000000000000 R08: ffffffff816f370c R09: ffffffff822d0b3f
R10: dffffc0000000000 R11: fffffbfff20bfbaf R12: ffff888032136200
R13: ffffea0000000000 R14: ffff888032136200 R15: ffff888141ac2c80
__phys_addr+0x11/0x170 arch/x86/mm/physaddr.c:16
virt_to_folio include/linux/mm.h:1385 [inline]
virt_to_slab mm/slab.h:211 [inline]
___cache_free+0x1a/0xe0 mm/slub.c:4714
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]
kmem_cache_alloc_noprof+0x1e1/0x390 mm/slub.c:4217
skb_clone+0x20c/0x390 net/core/skbuff.c:2044
hci_send_cmd_sync net/bluetooth/hci_core.c:4053 [inline]
hci_cmd_work+0xe7/0x6c0 net/bluetooth/hci_core.c:4089
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: 10385 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 veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, 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:1c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
IPVS: lblc: UDP 224.0.0.2:0 - no destination available
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
net_ratelimit: 14249 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, 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:1c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, 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:1c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:92:ea:f0:10:fa:2a, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)