bridge0: received packet on bridge_slave_0 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): P16016/1:b..l P17787/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=74873, q=167 ncpus=2)
task:kworker/u8:1 state:R running task stack:27576 pid:17787 tgid:17787 ppid:2 task_flags:0x4208060 flags:0x00004000
Workqueue: krdsd rds_connect_worker
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_next_frame+0xac/0x20c0 arch/x86/kernel/unwind_orc.c:479
Code: 48 89 04 24 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 ac 17 00 00 49 8b 45 38 bf 01 00 00 00 48 89 44 24 10 <e8> 3f 1f 1f 00 4d 8d 65 50 48 b8 00 00 00 00 00 fc ff df 4c 89 e2
RSP: 0018:ffffc9001007f4b0 EFLAGS: 00000246
RAX: ffffc9001007f8e8 RBX: 0000000000000001 RCX: 0000000000000000
RDX: 1ffff9200200feab RSI: ffffffff821cc799 RDI: 0000000000000001
RBP: ffffc9001007f568 R08: ffffc9001007f554 R09: ffffffff9103ecc2
R10: ffffc9001007f520 R11: 0000000000011d0b R12: ffffffff81a599d0
R13: ffffc9001007f520 R14: 0000000000000000 R15: ffff88802f000000
arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
save_stack+0x162/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x8d/0x400 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_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
__put_partials+0x14c/0x170 mm/slub.c:3153
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
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]
__do_kmalloc_node mm/slub.c:4293 [inline]
__kmalloc_noprof+0x1cd/0x510 mm/slub.c:4306
kmalloc_noprof include/linux/slab.h:905 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
lsm_blob_alloc+0x68/0x90 security/security.c:684
lsm_sock_alloc security/security.c:4839 [inline]
security_sk_alloc+0x30/0x270 security/security.c:4855
sk_prot_alloc+0xfb/0x2a0 net/core/sock.c:2184
sk_alloc+0x36/0xb90 net/core/sock.c:2234
inet_create net/ipv4/af_inet.c:326 [inline]
inet_create+0x3a1/0x10a0 net/ipv4/af_inet.c:252
__sock_create+0x335/0x8d0 net/socket.c:1548
rds_tcp_conn_path_connect+0x2e1/0x800 net/rds/tcp_connect.c:115
rds_connect_worker+0x1ac/0x2d0 net/rds/threads.c:176
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3236
process_scheduled_works kernel/workqueue.c:3317 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3398
kthread+0x3af/0x750 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
task:syz-executor state:R running task stack:24000 pid:16016 tgid:16016 ppid:16015 task_flags:0x400140 flags:0x00004002
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:kernel_text_address+0x0/0x100 kernel/extable.c:95
Code: c7 c7 84 11 62 90 89 44 24 04 e8 bb b4 98 00 8b 44 24 04 eb a9 0f 1f 44 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 <66> 0f 1f 00 53 48 89 fb 48 83 ec 08 48 81 ff 00 00 00 81 72 18 48
RSP: 0018:ffffc9000d947240 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffffff820fe26b RCX: 0000000000000000
RDX: 1ffff92001b28e57 RSI: ffffc9000d9474f0 RDI: ffffffff820fe26b
RBP: ffffc9000d9472b8 R08: ffffc9000d9472a4 R09: ffffffff9104af2c
R10: ffffc9000d947270 R11: 000000000001267a R12: ffffffff81a599d0
R13: ffffc9000d947330 R14: 0000000000000000 R15: ffff888064c7c880
__kernel_text_address+0xd/0x40 kernel/extable.c:79
unwind_get_return_address+0x59/0xa0 arch/x86/kernel/unwind_orc.c:369
arch_stack_walk+0xa7/0x100 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
save_stack+0x162/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x8d/0x400 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_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
__put_partials+0x14c/0x170 mm/slub.c:3153
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:329
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_noprof+0x226/0x3d0 mm/slub.c:4171
ptlock_alloc+0x1f/0x70 mm/memory.c:7055
ptlock_init include/linux/mm.h:2972 [inline]
pagetable_pte_ctor include/linux/mm.h:3020 [inline]
__pte_alloc_one_noprof include/asm-generic/pgalloc.h:73 [inline]
pte_alloc_one+0x74/0x390 arch/x86/mm/pgtable.c:44
__pte_alloc+0x6e/0x3d0 mm/memory.c:447
copy_pte_range mm/memory.c:1107 [inline]
copy_pmd_range mm/memory.c:1262 [inline]
copy_pud_range mm/memory.c:1299 [inline]
copy_p4d_range mm/memory.c:1323 [inline]
copy_page_range+0x3737/0x5690 mm/memory.c:1421
dup_mmap kernel/fork.c:748 [inline]
dup_mm kernel/fork.c:1700 [inline]
copy_mm kernel/fork.c:1752 [inline]
copy_process+0x7ccb/0x8c50 kernel/fork.c:2403
kernel_clone+0xfd/0x960 kernel/fork.c:2815
__do_sys_clone+0xcf/0x120 kernel/fork.c:2958
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f91ded839d3
RSP: 002b:00007fff76b2f2c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f91ded839d3
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000001
R10: 000055556dd367d0 R11: 0000000000000246 R12: 0000000000000000
R13: 000055556dd49590 R14: 00000000000d4c74 R15: 00007fff76b2f460
</TASK>
rcu: rcu_preempt kthread starved for 10289 jiffies! g74873 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:27312 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6857
schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2024
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2226
kthread+0x3af/0x750 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
</TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Not tainted 6.14.0-rc3-syzkaller-00267-gff202c5028a1 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:56 [inline]
RIP: 0010:stack_access_ok+0x3e/0x200 arch/x86/kernel/unwind_orc.c:393
Code: 41 54 49 89 d4 4c 89 f2 55 48 c1 ea 03 48 89 f5 53 48 89 fb 48 83 ec 08 80 3c 02 00 0f 85 94 01 00 00 4c 8d 6b 10 4c 8b 7b 08 <48> b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 00 0f
RSP: 0018:ffffc90000a17aa8 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: ffffc90000a17b58 RCX: ffffffff9103e628
RDX: 1ffff92000142f6c RSI: ffffc90000a17ec0 RDI: ffffc90000a17b58
RBP: ffffc90000a17ec0 R08: ffffffff9103e65e R09: ffffffff9103e62c
R10: ffffc90000a17b58 R11: 0000000000011cf2 R12: 0000000000000008
R13: ffffc90000a17b68 R14: ffffc90000a17b60 R15: ffffc90000a11000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000011000 CR3: 000000001d29a000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<IRQ>
deref_stack_reg arch/x86/kernel/unwind_orc.c:403 [inline]
unwind_next_frame+0xac7/0x20c0 arch/x86/kernel/unwind_orc.c:585
arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
kasan_save_free_info+0x3b/0x60 mm/kasan/generic.c:576
poison_slab_object mm/kasan/common.c:247 [inline]
__kasan_slab_free+0x51/0x70 mm/kasan/common.c:264
kasan_slab_free include/linux/kasan.h:233 [inline]
slab_free_hook mm/slub.c:2353 [inline]
slab_free mm/slub.c:4609 [inline]
kmem_cache_free+0x2e2/0x4d0 mm/slub.c:4711
kfree_skbmem+0x1a4/0x1f0 net/core/skbuff.c:1058
__kfree_skb net/core/skbuff.c:1115 [inline]
sk_skb_reason_drop+0x136/0x1a0 net/core/skbuff.c:1152
kfree_skb_reason include/linux/skbuff.h:1271 [inline]
kfree_skb include/linux/skbuff.h:1280 [inline]
ip6_mc_input+0x7af/0xfd0 net/ipv6/ip6_input.c:591
dst_input include/net/dst.h:469 [inline]
dst_input include/net/dst.h:467 [inline]
ip6_rcv_finish+0x3a2/0x5b0 net/ipv6/ip6_input.c:79
ip_sabotage_in+0x21b/0x290 net/bridge/br_netfilter_hooks.c:993
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
nf_hook.constprop.0+0x42e/0x750 include/linux/netfilter.h:269
NF_HOOK include/linux/netfilter.h:312 [inline]
ipv6_rcv+0xa4/0x680 net/ipv6/ip6_input.c:309
__netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5899
__netif_receive_skb+0x1d/0x160 net/core/dev.c:6012
netif_receive_skb_internal net/core/dev.c:6098 [inline]
netif_receive_skb+0x13f/0x7b0 net/core/dev.c:6157
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
br_pass_frame_up+0x346/0x490 net/bridge/br_input.c:70
br_handle_frame_finish+0xecc/0x1c90 net/bridge/br_input.c:226
br_nf_hook_thresh+0x303/0x410 net/bridge/br_netfilter_hooks.c:1170
br_nf_pre_routing_finish_ipv6+0x76a/0xfb0 net/bridge/br_netfilter_ipv6.c:154
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x3ce/0x8c0 net/bridge/br_netfilter_ipv6.c:184
br_nf_pre_routing+0x860/0x15b0 net/bridge/br_netfilter_hooks.c:508
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:282 [inline]
br_handle_frame+0xad7/0x14a0 net/bridge/br_input.c:433
__netif_receive_skb_core.constprop.0+0xa20/0x4330 net/core/dev.c:5793
__netif_receive_skb_one_core+0xb1/0x1e0 net/core/dev.c:5897
__netif_receive_skb+0x1d/0x160 net/core/dev.c:6012
process_backlog+0x443/0x15f0 net/core/dev.c:6360
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:7194
napi_poll net/core/dev.c:7263 [inline]
net_rx_action+0xa94/0x1010 net/core/dev.c:7385
handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
__do_softirq kernel/softirq.c:595 [inline]
invoke_softirq kernel/softirq.c:435 [inline]
__irq_exit_rcu+0x109/0x170 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+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1049
</IRQ>
<TASK>
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+0x1a/0x20 drivers/acpi/processor_idle.c:112
Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 65 48 8b 05 08 78 ac 74 48 8b 00 a8 08 75 0c 66 90 0f 00 2d 18 48 87 00 fb f4 <fa> c3 cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc900001a7d58 EFLAGS: 00000246
RAX: 0000000000004000 RBX: 0000000000000001 RCX: ffffffff8b574469
RDX: 0000000000000001 RSI: ffff8881422de000 RDI: ffff8881422de064
RBP: ffff8881422de064 R08: 0000000000000001 R09: ffffed10170e6f85
R10: ffff8880b8737c2b R11: 0000000000000000 R12: ffff888020f88000
R13: ffffffff8ee2db60 R14: 0000000000000001 R15: 0000000000000000
acpi_idle_enter+0xc5/0x160 drivers/acpi/processor_idle.c:699
cpuidle_enter_state+0xaa/0x4f0 drivers/cpuidle/cpuidle.c:268
cpuidle_enter+0x4e/0xa0 drivers/cpuidle/cpuidle.c:389
cpuidle_idle_call kernel/sched/idle.c:230 [inline]
do_idle+0x310/0x3f0 kernel/sched/idle.c:325
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:423
start_secondary+0x222/0x2b0 arch/x86/kernel/smpboot.c:315
common_startup_64+0x13e/0x148
</TASK>
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:aa:aa:aa:aa:aa:0c, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)