bridge0: received packet on veth0_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): P8/1:b..l P5189/1:b..l P8877/1:b..l P16358/2:b..l
rcu: (detected by 0, t=10503 jiffies, g=85453, q=572 ncpus=2)
task:syz.1.1948 state:R running task stack:19704 pid:16358 tgid:16357 ppid:12282 task_flags:0x400140 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x190e/0x4c90 kernel/sched/core.c:6765
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6944
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6968
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0x179/0x200 kernel/softirq.c:396
local_bh_enable include/linux/bottom_half.h:33 [inline]
ip6t_do_table+0x1687/0x18a0 net/ipv6/netfilter/ip6_tables.c:375
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook+0x2c4/0x450 include/linux/netfilter.h:269
NF_HOOK include/linux/netfilter.h:312 [inline]
ip6_xmit+0x10de/0x1a20 net/ipv6/ip6_output.c:366
inet6_csk_xmit+0x468/0x710 net/ipv6/inet6_connection_sock.c:135
__tcp_transmit_skb+0x1f3c/0x3a60 net/ipv4/tcp_output.c:1471
tcp_transmit_skb net/ipv4/tcp_output.c:1489 [inline]
tcp_write_xmit+0x16e2/0x66c0 net/ipv4/tcp_output.c:2832
tcp_sendmsg_locked+0x2a8d/0x5330 net/ipv4/tcp.c:1306
tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1358
sock_sendmsg_nosec net/socket.c:718 [inline]
__sock_sendmsg+0xef/0x270 net/socket.c:733
sock_write_iter+0x2d7/0x3f0 net/socket.c:1137
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xacf/0xd10 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f271718d169
RSP: 002b:00007f2718035038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f27173a5fa0 RCX: 00007f271718d169
RDX: 00000000fffffd9d RSI: 0000400000000200 RDI: 0000000000000004
RBP: 00007f271720e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f27173a5fa0 R15: 00007f27174cfa28
task:syz-executor state:R running task stack:22848 pid:8877 tgid:8877 ppid:5819 task_flags:0x40050c flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x190e/0x4c90 kernel/sched/core.c:6765
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6944
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6968
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
unwind_next_frame+0x18f8/0x22d0 arch/x86/kernel/unwind_orc.c:672
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_folios+0xe40/0x18b0 mm/page_alloc.c:2707
folios_put_refs+0x76c/0x860 mm/swap.c:994
free_pages_and_swap_cache+0x5c3/0x690 mm/swap_state.c:334
__tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:389 [inline]
tlb_flush_mmu+0x3a3/0x680 mm/mmu_gather.c:396
tlb_finish_mmu+0xd4/0x200 mm/mmu_gather.c:488
exit_mmap+0x52a/0xd40 mm/mmap.c:1297
__mmput+0x115/0x420 kernel/fork.c:1356
exit_mm+0x220/0x310 kernel/exit.c:570
do_exit+0x9ad/0x28e0 kernel/exit.c:925
do_group_exit+0x207/0x2c0 kernel/exit.c:1087
get_signal+0x168c/0x1720 kernel/signal.c:3036
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xce/0x340 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5f6cd833d7
RSP: 002b:00007ffcfe8a5940 EFLAGS: 00000293 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 00000000000022be RCX: 00007f5f6cd833d7
RDX: 0000000040000000 RSI: 00007ffcfe8a597c RDI: 00000000ffffffff
RBP: 00007ffcfe8a597c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000008
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
task:syslogd state:R running task stack:22848 pid:5189 tgid:5189 ppid:1 task_flags:0x400000 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x190e/0x4c90 kernel/sched/core.c:6765
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7087
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:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5855
Code: 2b 00 74 08 4c 89 f7 e8 8a 46 8c 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90003257020 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200064ae10 RCX: ffff88807da446e8
RDX: dffffc0000000000 RSI: ffffffff8c2ab700 RDI: ffffffff8c80f060
RBP: ffffc90003257170 R08: ffffffff94549847 R09: 1ffffffff28a9308
R10: dffffc0000000000 R11: fffffbfff28a9309 R12: 1ffff9200064ae0c
R13: dffffc0000000000 R14: ffffc90003257080 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
page_ext_get+0x3d/0x2a0 mm/page_ext.c:525
__reset_page_owner+0x30/0x430 mm/page_owner.c:290
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2660
discard_slab mm/slub.c:2684 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3153
put_cpu_partial+0x17c/0x250 mm/slub.c:3228
__slab_free+0x290/0x380 mm/slub.c:4479
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_kmalloc+0x23/0xb0 mm/kasan/common.c:385
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4294 [inline]
__kmalloc_noprof+0x285/0x4c0 mm/slub.c:4306
kmalloc_noprof include/linux/slab.h:905 [inline]
kzalloc_noprof include/linux/slab.h:1037 [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_check_open_permission+0x258/0x4f0 security/tomoyo/file.c:771
security_file_open+0xac/0x250 security/security.c:3114
do_dentry_open+0x320/0x1960 fs/open.c:933
vfs_open+0x3b/0x370 fs/open.c:1086
do_open fs/namei.c:3830 [inline]
path_openat+0x2c81/0x3590 fs/namei.c:3989
do_filp_open+0x27f/0x4e0 fs/namei.c:4016
do_sys_openat2+0x13e/0x1d0 fs/open.c:1428
do_sys_open fs/open.c:1443 [inline]
__do_sys_openat fs/open.c:1459 [inline]
__se_sys_openat fs/open.c:1454 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1454
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f940ddd69a4
RSP: 002b:00007ffec2e7e5b0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000561e671a1910 RCX: 00007f940ddd69a4
RDX: 0000000000000d41 RSI: 00007f940df75443 RDI: 00000000ffffff9c
RBP: 00007f940df75443 R08: 0000000000000001 R09: 0000000000000000
R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000000d41
R13: 0000000067c4165c R14: 0000000000000004 R15: 0000561e671a1a60
task:kworker/0:0 state:R running task stack:20944 pid:8 tgid:8 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: events_power_efficient gc_worker
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x190e/0x4c90 kernel/sched/core.c:6765
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7087
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:seqcount_lockdep_reader_access+0x1e0/0x220 include/linux/seqlock.h:75
Code: f7 4d 85 ed 75 16 e8 bf d6 aa f7 eb 15 e8 b8 d6 aa f7 e8 d3 75 f1 01 4d 85 ed 74 ea e8 a9 d6 aa f7 fb 48 c7 04 24 0e 36 e0 45 <4b> c7 04 3c 00 00 00 00 66 43 c7 44 3c 09 00 00 43 c6 44 3c 0b 00
RSP: 0018:ffffc900000d7900 EFLAGS: 00000293
RAX: ffffffff8a16e877 RBX: 0000000000000000 RCX: ffff88801d2cda00
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900000d79b0 R08: ffffffff8a16e84d R09: 1ffffffff28a931c
R10: dffffc0000000000 R11: fffffbfff28a931d R12: dffffc0000000000
R13: 0000000000000200 R14: 0000000000000046 R15: 1ffff9200001af20
nf_conntrack_get_ht include/net/netfilter/nf_conntrack.h:333 [inline]
gc_worker+0x316/0x1400 net/netfilter/nf_conntrack_core.c:1534
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0xabe/0x18e0 kernel/workqueue.c:3319
worker_thread+0x870/0xd30 kernel/workqueue.c:3400
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: rcu_preempt kthread starved for 2803 jiffies! g85453 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:26104 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0x190e/0x4c90 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6857
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2024
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2226
kthread+0x7a9/0x920 kernel/kthread.c:464
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
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: 0 Comm: swapper/1 Not tainted 6.14.0-rc4-syzkaller-00278-gece144f151ac #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:__asan_memset+0x33/0x50 mm/kasan/shadow.c:87
Code: 89 d3 41 89 f6 48 89 fd 48 8b 4c 24 18 48 89 d6 ba 01 00 00 00 e8 7d e6 ff ff 84 c0 74 12 48 89 ef 44 89 f6 48 89 da 5b 41 5e <5d> e9 a7 88 df 09 31 c0 5b 41 5e 5d c3 cc cc cc cc 66 2e 0f 1f 84
RSP: 0018:ffffc90000a178e0 EFLAGS: 00000202
RAX: ffffc90000a17f01 RBX: ffffc90000a179f8 RCX: ffffffff816d217b
RDX: 0000000000000010 RSI: 0000000000000000 RDI: ffffc90000a17a10
RBP: ffffc90000a17a10 R08: ffffc90000a17a1f R09: 1ffff92000142f43
R10: dffffc0000000000 R11: fffff52000142f44 R12: ffffc90000a19000
R13: ffffc90000a179c0 R14: ffffffff8ac81a3d R15: ffffc90000a17a10
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00004000008e9000 CR3: 0000000067120000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
unwind_next_frame+0xcfb/0x22d0 arch/x86/kernel/unwind_orc.c:592
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:47 [inline]
kasan_save_track+0x3f/0x80 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:319 [inline]
__kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4115 [inline]
slab_alloc_node mm/slub.c:4164 [inline]
kmem_cache_alloc_node_noprof+0x1d9/0x380 mm/slub.c:4216
__alloc_skb+0x1c3/0x440 net/core/skbuff.c:596
alloc_skb include/linux/skbuff.h:1331 [inline]
nlmsg_new include/net/netlink.h:1018 [inline]
fdb_notify+0xa8/0x170 net/bridge/br_fdb.c:188
br_fdb_update+0x55d/0x740 net/bridge/br_fdb.c:934
br_handle_frame_finish+0x742/0x2000 net/bridge/br_input.c:144
br_nf_hook_thresh+0x472/0x590
br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x379/0x770 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+0x9f3/0x1530 net/bridge/br_input.c:433
__netif_receive_skb_core+0x13e7/0x4540 net/core/dev.c:5787
__netif_receive_skb_one_core net/core/dev.c:5891 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:6006
process_backlog+0x662/0x15b0 net/core/dev.c:6354
__napi_poll+0xcb/0x490 net/core/dev.c:7188
napi_poll net/core/dev.c:7257 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:7379
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561
__do_softirq kernel/softirq.c:595 [inline]
invoke_softirq kernel/softirq.c:435 [inline]
__irq_exit_rcu+0xf7/0x220 kernel/softirq.c:662
irq_exit_rcu+0x9/0x30 kernel/softirq.c:678
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:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:92 [inline]
RIP: 0010:acpi_safe_halt+0x21/0x30 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 65 48 8b 04 25 80 d6 03 00 48 f7 00 08 00 00 00 75 10 66 90 0f 00 2d 05 f2 81 00 f3 0f 1e fa fb f4 c3 cc cc cc cc 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d08 EFLAGS: 00000246
RAX: ffff88801de80000 RBX: ffff888144299864 RCX: 000000000032bc99
RDX: 0000000000000001 RSI: ffff888144299800 RDI: ffff888144299864
RBP: 000000000003aab8 R08: ffff8880b873799b R09: 1ffff110170e6f33
R10: dffffc0000000000 R11: ffffffff8c089010 R12: ffff88801f75d800
R13: 0000000000000001 R14: 0000000000000001 R15: ffffffff8f337da0
acpi_idle_enter+0xe4/0x140 drivers/acpi/processor_idle.c:699
cpuidle_enter_state+0x109/0x470 drivers/cpuidle/cpuidle.c:268
cpuidle_enter+0x5d/0xa0 drivers/cpuidle/cpuidle.c:389
call_cpuidle kernel/sched/idle.c:155 [inline]
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x372/0x5c0 kernel/sched/idle.c:325
cpu_startup_entry+0x42/0x60 kernel/sched/idle.c:423
start_secondary+0x102/0x110 arch/x86/kernel/smpboot.c:315
common_startup_64+0x13e/0x147
net_ratelimit: 14991 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:c2:9a:4d:ae:80:9d, 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:c2:9a:4d:ae:80:9d, vlan:0)
bridge0: received packet on bridge_slave_0 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:c2:9a:4d:ae:80:9d, 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:c2:9a:4d:ae:80:9d, vlan:0)
bridge0: received packet on bridge_slave_0 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:c2:9a:4d:ae:80:9d, vlan:0)
ip6_tunnel: ip6tnl1 xmit: Local address not yet configured!
net_ratelimit: 19535 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:c2:9a:4d:ae:80:9d, vlan:0)
bridge0: received packet on bridge_slave_0 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:c2:9a:4d:ae:80:9d, 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:c2:9a:4d:ae:80:9d, vlan:0)
bridge0: received packet on bridge_slave_0 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:c2:9a:4d:ae:80:9d, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:c2:9a:4d:ae:80:9d, vlan:0)