bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P31128/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=174309, q=834 ncpus=2)
task:syz.6.7775 state:R running task stack:27400 pid:31128 ppid:31118 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5393 [inline]
__schedule+0x15ae/0x4700 kernel/sched/core.c:6722
preempt_schedule_common+0x82/0xc0 kernel/sched/core.c:6889
preempt_schedule+0xc0/0xd0 kernel/sched/core.c:6913
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk_64.S:45
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3a/0x40 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
zap_pte_range mm/memory.c:1523 [inline]
zap_pmd_range mm/memory.c:1571 [inline]
zap_pud_range mm/memory.c:1600 [inline]
zap_p4d_range mm/memory.c:1621 [inline]
unmap_page_range+0x2577/0x32f0 mm/memory.c:1642
unmap_vmas+0x286/0x3f0 mm/memory.c:1732
exit_mmap+0x238/0xb90 mm/mmap.c:3310
__mmput+0x118/0x3a0 kernel/fork.c:1362
exit_mm+0x23f/0x340 kernel/exit.c:576
do_exit+0x909/0x2530 kernel/exit.c:877
__do_sys_exit kernel/exit.c:999 [inline]
__se_sys_exit kernel/exit.c:997 [inline]
__x64_sys_exit+0x40/0x40 kernel/exit.c:997
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fe51df9f559
RSP: 002b:00007fe51eeecfd8 EFLAGS: 00000246 ORIG_RAX: 000000000000003c
RAX: ffffffffffffffda RBX: 00007fe51e225fa0 RCX: 00007fe51df9f559
RDX: 00007fe51eeed9c8 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 00007fe51e036b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fe51e226038 R14: 00007fe51e225fa0 R15: 00007ffd06a9d168
rcu: rcu_preempt kthread starved for 4784 jiffies! g174309 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:27232 pid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5393 [inline]
__schedule+0x15ae/0x4700 kernel/sched/core.c:6722
schedule+0xbd/0x170 kernel/sched/core.c:6796
schedule_timeout+0x188/0x2d0 kernel/time/timer.c:2168
rcu_gp_fqs_loop+0x30d/0x1590 kernel/rcu/tree.c:1667
rcu_gp_kthread+0x9d/0x3b0 kernel/rcu/tree.c:1866
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 PID: 31121 Comm: syz.4.7776 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:228 [inline]
RIP: 0010:unwind_next_frame+0x450/0x2990 arch/x86/kernel/unwind_orc.c:494
Code: 00 00 48 89 5c 24 20 4b 8d 5c a6 fc 49 39 de 0f 86 0a 14 00 00 e8 d0 eb 4b 00 4c 89 f5 e9 a6 14 00 00 4e 8d 2c a5 88 5b 9a 8f <44> 29 e5 49 8d 5c ad fc 49 39 dd 76 10 e8 ae eb 4b 00 4c 89 e9 4c
RSP: 0018:ffffc90000006a58 EFLAGS: 00000202
RAX: ffffffff813be686 RBX: dffffc0000000000 RCX: 0000000000000100
RDX: ffff88802c2f5a00 RSI: 000000000000d358 RDI: 000000000000d359
RBP: 000000000000d359 R08: ffffc90000006b00 R09: 0000000000000000
R10: ffffc90000006b88 R11: fffff52000000d7d R12: 000000000000d358
R13: ffffffff8f9da8e8 R14: 0000000000003c14 R15: 0000000000000001
FS: 00007fd0436cb6c0(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007effc6e14eb8 CR3: 000000006109b000 CR4: 00000000003506f0
DR0: 0000000000000008 DR1: 0000000000000000 DR2: 0000200000000300
DR3: 0000200000000300 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
__unwind_start+0x5bb/0x730 arch/x86/kernel/unwind_orc.c:760
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0xf8/0x190 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0xaa/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:46 [inline]
kasan_set_track+0x4e/0x70 mm/kasan/common.c:53
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook+0x6a/0x4d0 mm/slab.h:770
slab_alloc_node mm/slub.c:3518 [inline]
slab_alloc mm/slub.c:3526 [inline]
__kmem_cache_alloc_lru mm/slub.c:3533 [inline]
kmem_cache_alloc+0x17e/0x2d0 mm/slub.c:3542
skb_ext_maybe_cow net/core/skbuff.c:6709 [inline]
skb_ext_add+0x1b3/0x8e0 net/core/skbuff.c:6783
nf_bridge_unshare net/bridge/br_netfilter_hooks.c:165 [inline]
br_nf_forward_ip+0xcd/0x10c0 net/bridge/br_netfilter_hooks.c:713
nf_hook_entry_hookfn include/linux/netfilter.h:156 [inline]
nf_hook_slow+0xb9/0x210 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:271 [inline]
NF_HOOK+0x23e/0x3e0 include/linux/netfilter.h:314
__br_forward+0x433/0x610 net/bridge/br_forward.c:115
br_handle_frame_finish+0xf2d/0x15c0 net/bridge/br_input.c:215
br_nf_hook_thresh+0x3d1/0x4b0 net/bridge/br_netfilter_hooks.c:1188
br_nf_pre_routing_finish_ipv6+0x9e5/0xd20 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:316 [inline]
br_nf_pre_routing_ipv6+0x34d/0x6a0 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:156 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x12fa/0x15b0 net/bridge/br_input.c:433
__netif_receive_skb_core+0xf94/0x3ac0 net/core/dev.c:5604
__netif_receive_skb_one_core net/core/dev.c:5708 [inline]
__netif_receive_skb+0x74/0x290 net/core/dev.c:5824
process_backlog+0x380/0x710 net/core/dev.c:6152
__napi_poll+0xbb/0x460 net/core/dev.c:6714
napi_poll net/core/dev.c:6781 [inline]
net_rx_action+0x65f/0xcc0 net/core/dev.c:6917
handle_softirqs+0x27d/0x820 kernel/softirq.c:578
__do_softirq kernel/softirq.c:612 [inline]
invoke_softirq kernel/softirq.c:452 [inline]
__irq_exit_rcu+0xd3/0x190 kernel/softirq.c:661
irq_exit_rcu+0x9/0x20 kernel/softirq.c:673
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1088 [inline]
sysvec_apic_timer_interrupt+0xa4/0xc0 arch/x86/kernel/apic/apic.c:1088
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:687
RIP: 0010:__slab_free+0x11c/0x400 mm/slub.c:3672
Code: 74 24 49 89 f6 4c 89 ce 4d 89 cf 49 89 d4 e8 fb 2f c0 08 4c 89 e2 4d 89 f9 48 8b 4c 24 20 44 8b 44 24 04 4c 89 f6 4c 8b 56 20 <4c> 8b 6e 28 8b 45 28 4c 89 14 08 44 89 e8 44 29 c0 0f b7 c0 45 89
RSP: 0018:ffffc900043bed08 EFLAGS: 00000246
RAX: ffff88823bc00001 RBX: ffff88802cf1d680 RCX: ffff88802cf1d680
RDX: ffffffff00000000 RSI: ffffea0000b3c700 RDI: 0000000000000000
RBP: ffff88801ae57b40 R08: 0000000000000001 R09: 0000000000000000
R10: ffff88802cf1ca00 R11: fffffbfff24446a6 R12: ffff88801ae57b40
R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88802cf1d680
qlink_free mm/kasan/quarantine.c:166 [inline]
qlist_free_all+0x75/0xd0 mm/kasan/quarantine.c:185
kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:306
kasan_slab_alloc include/linux/kasan.h:188 [inline]
slab_post_alloc_hook+0x6a/0x4d0 mm/slab.h:770
slab_alloc_node mm/slub.c:3518 [inline]
__kmem_cache_alloc_node+0x197/0x260 mm/slub.c:3557
__do_kmalloc_node mm/slab_common.c:1006 [inline]
__kmalloc_node_track_caller+0xa4/0x230 mm/slab_common.c:1027
__do_krealloc mm/slab_common.c:1402 [inline]
krealloc+0x86/0x120 mm/slab_common.c:1435
push_jmp_history+0x14b/0x4f0 kernel/bpf/verifier.c:3605
do_check+0x4b4e/0xd040 kernel/bpf/verifier.c:17428
do_check_common+0xacc/0x1410 kernel/bpf/verifier.c:20123
do_check_main kernel/bpf/verifier.c:20186 [inline]
bpf_check+0x6813/0xfe50 kernel/bpf/verifier.c:20868
bpf_prog_load+0x10fa/0x1610 kernel/bpf/syscall.c:2753
__sys_bpf+0x5ba/0x890 kernel/bpf/syscall.c:5497
__do_sys_bpf kernel/bpf/syscall.c:5601 [inline]
__se_sys_bpf kernel/bpf/syscall.c:5599 [inline]
__x64_sys_bpf+0x7c/0x90 kernel/bpf/syscall.c:5599
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7fd04279f559
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd0436cb028 EFLAGS: 00000246 ORIG_RAX: 0000000000000141
RAX: ffffffffffffffda RBX: 00007fd042a25fa0 RCX: 00007fd04279f559
RDX: 0000000000000048 RSI: 00002000000001c0 RDI: 0000000000000005
RBP: 00007fd042836b20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd042a26038 R14: 00007fd042a25fa0 R15: 00007fff3bf63f08
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)
bridge0: received packet on team0 with own address as source address (addr:aa:aa:aa:aa:aa:20, vlan:0)