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)
rcu: INFO: rcu_sched self-detected stall on CPU
rcu: 0-....: (10493 ticks this GP) idle=9ee/1/0x4000000000000004 softirq=42039/42221 fqs=3397
rcu: (t=10500 jiffies g=3997 q=0)
NMI backtrace for cpu 0
CPU: 0 PID: 304 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
nmi_cpu_backtrace.cold+0x63/0xa2 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x1a6/0x1f0 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x15f/0x19c kernel/rcu/tree.c:1340
print_cpu_stall kernel/rcu/tree.c:1478 [inline]
check_cpu_stall kernel/rcu/tree.c:1550 [inline]
__rcu_pending kernel/rcu/tree.c:3293 [inline]
rcu_pending kernel/rcu/tree.c:3336 [inline]
rcu_check_callbacks.cold+0x62d/0xe19 kernel/rcu/tree.c:2682
update_process_times+0x2a/0x70 kernel/time/timer.c:1650
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:168
tick_sched_timer+0xfc/0x290 kernel/time/tick-sched.c:1278
__run_hrtimer kernel/time/hrtimer.c:1465 [inline]
__hrtimer_run_queues+0x3f6/0xe60 kernel/time/hrtimer.c:1527
hrtimer_interrupt+0x326/0x9e0 kernel/time/hrtimer.c:1585
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1071 [inline]
smp_apic_timer_interrupt+0x10c/0x550 arch/x86/kernel/apic/apic.c:1096
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
RIP: 0010:rt6_check_dev net/ipv6/route.c:593 [inline]
RIP: 0010:rt6_score_route+0x78/0xb70 net/ipv6/route.c:634
Code: 00 0f 85 e5 09 00 00 4c 8b ad b0 00 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bd 08 01 00 00 48 89 fa 48 c1 ea 03 0f b6 04 02 <84> c0 74 08 3c 03 0f 8e 2a 08 00 00 45 8b ad 08 01 00 00 44 89 e7
RSP: 0018:ffff8880ba006bd8 EFLAGS: 00000a06 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff8706c775
RDX: 1ffff110119cbce1 RSI: ffffffff8706c783 RDI: ffff88808ce5e708
RBP: ffff888096b5be00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: 000000000000000d
R13: ffff88808ce5e600 R14: ffff888096b5be54 R15: 0000000000000000
find_match.part.0+0x1e3/0x1530 net/ipv6/route.c:681
find_match net/ipv6/route.c:670 [inline]
find_rr_leaf net/ipv6/route.c:719 [inline]
rt6_select net/ipv6/route.c:769 [inline]
fib6_table_lookup+0x4c2/0xf40 net/ipv6/route.c:1876
ip6_pol_route+0x180/0x1270 net/ipv6/route.c:1909
fib6_rule_lookup+0x10b/0x4e0 net/ipv6/fib6_rules.c:118
ip6_route_input_lookup net/ipv6/route.c:1990 [inline]
ip6_route_input+0x6c0/0xaa0 net/ipv6/route.c:2125
ip6_rcv_finish_core.constprop.0.isra.0+0xd7/0x550 net/ipv6/ip6_input.c:63
ip6_rcv_finish+0x176/0x2f0 net/ipv6/ip6_input.c:74
ip_sabotage_in net/bridge/br_netfilter_hooks.c:847 [inline]
ip_sabotage_in+0x17d/0x1d0 net/bridge/br_netfilter_hooks.c:841
nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline]
nf_hook_slow+0xc5/0x1e0 net/netfilter/core.c:511
nf_hook include/linux/netfilter.h:244 [inline]
NF_HOOK include/linux/netfilter.h:287 [inline]
ipv6_rcv+0x26a/0x3f0 net/ipv6/ip6_input.c:273
__netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:4954
__netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066
netif_receive_skb_internal+0xf0/0x3f0 net/core/dev.c:5156
NF_HOOK include/linux/netfilter.h:289 [inline]
br_pass_frame_up+0x309/0x6c0 net/bridge/br_input.c:69
br_handle_frame_finish+0x6f2/0x1410 net/bridge/br_input.c:173
br_nf_hook_thresh+0x2a3/0x330 net/bridge/br_netfilter_hooks.c:1014
br_nf_pre_routing_finish_ipv6+0x6e3/0xd40 net/bridge/br_netfilter_ipv6.c:210
NF_HOOK include/linux/netfilter.h:289 [inline]
br_nf_pre_routing_ipv6+0x3f4/0x860 net/bridge/br_netfilter_ipv6.c:240
br_nf_pre_routing+0xf05/0x1500 net/bridge/br_netfilter_hooks.c:494
nf_hook_entry_hookfn include/linux/netfilter.h:119 [inline]
nf_hook_slow+0xc5/0x1e0 net/netfilter/core.c:511
nf_hook include/linux/netfilter.h:244 [inline]
NF_HOOK include/linux/netfilter.h:287 [inline]
br_handle_frame+0xa60/0x13b0 net/bridge/br_input.c:306
__netif_receive_skb_core+0x929/0x3270 net/core/dev.c:4876
__netif_receive_skb_one_core+0xae/0x180 net/core/dev.c:4952
__netif_receive_skb+0x27/0x1c0 net/core/dev.c:5066
process_backlog+0x241/0x700 net/core/dev.c:5849
napi_poll net/core/dev.c:6280 [inline]
net_rx_action+0x4ac/0xfb0 net/core/dev.c:6346
__do_softirq+0x265/0x980 kernel/softirq.c:292
invoke_softirq kernel/softirq.c:372 [inline]
irq_exit+0x215/0x260 kernel/softirq.c:412
exiting_irq arch/x86/include/asm/apic.h:536 [inline]
smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098
apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894
RIP: 0010:page_remove_file_rmap+0x65/0xa30 mm/rmap.c:1246
Code: 6e 04 00 31 ff 89 c3 89 c6 e8 e7 d5 d2 ff 85 db 74 33 e8 6e d4 d2 ff 49 8d 7e 54 be 04 00 00 00 e8 e0 9d 08 00 f0 41 ff 4e 54 56 d4 d2 ff 4c 89 f7 48 83 c4 08 5b 5d 41 5c 41 5d 41 5e 41 5f
RSP: 0018:ffff8880486df700 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff818fb50e
RDX: 0000000000000000 RSI: ffff8880a4700140 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000007 R11: 0000000000000000 R12: dead000000000100
R13: ffffffffffffffff R14: ffffea00028d9980 R15: 00007fdf3f7a7000
page_remove_rmap+0xe5/0x120 mm/rmap.c:1297
zap_pte_range mm/memory.c:1350 [inline]
zap_pmd_range mm/memory.c:1463 [inline]
zap_pud_range mm/memory.c:1492 [inline]
zap_p4d_range mm/memory.c:1513 [inline]
unmap_page_range+0x147d/0x2c50 mm/memory.c:1534
unmap_single_vma+0x198/0x300 mm/memory.c:1579
unmap_vmas+0xa9/0x180 mm/memory.c:1609
exit_mmap+0x2b9/0x530 mm/mmap.c:3093
__mmput kernel/fork.c:1016 [inline]
mmput+0x14e/0x4a0 kernel/fork.c:1037
exit_mm kernel/exit.c:549 [inline]
do_exit+0xaec/0x2be0 kernel/exit.c:857
do_group_exit+0x125/0x310 kernel/exit.c:967
get_signal+0x3f2/0x1f70 kernel/signal.c:2589
do_signal+0x8f/0x1670 arch/x86/kernel/signal.c:799
exit_to_usermode_loop+0x204/0x2a0 arch/x86/entry/common.c:163
prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline]
syscall_return_slowpath arch/x86/entry/common.c:271 [inline]
do_syscall_64+0x538/0x620 arch/x86/entry/common.c:296
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7fdf403f6059
Code: Bad RIP value.
RSP: 002b:00007fdf3ed6b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: 0000000020000000 RBX: 00007fdf40508f60 RCX: 00007fdf403f6059
RDX: 0000000000000002 RSI: 0000000000ff5000 RDI: 0000000020000000
RBP: 00007fdf4045008d R08: ffffffffffffffff R09: 0000000000000000
R10: 000000000005c831 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff0276b6bf R14: 00007fdf3ed6b300 R15: 0000000000022000
net_ratelimit: 21814 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: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 veth0_to_bridge with own address as source address (addr:ea:c3:f0:56:08:68, 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:1b, 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: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 veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 12103 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: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: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 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: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 veth0_to_bridge with own address as source address (addr:ea:c3:f0:56:08:68, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
----------------
Code disassembly (best guess):
0: 00 0f add %cl,(%rdi)
2: 85 e5 test %esp,%ebp
4: 09 00 or %eax,(%rax)
6: 00 4c 8b ad add %cl,-0x53(%rbx,%rcx,4)
a: b0 00 mov $0x0,%al
c: 00 00 add %al,(%rax)
e: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
15: fc ff df
18: 49 8d bd 08 01 00 00 lea 0x108(%r13),%rdi
1f: 48 89 fa mov %rdi,%rdx
22: 48 c1 ea 03 shr $0x3,%rdx
26: 0f b6 04 02 movzbl (%rdx,%rax,1),%eax
* 2a: 84 c0 test %al,%al <-- trapping instruction
2c: 74 08 je 0x36
2e: 3c 03 cmp $0x3,%al
30: 0f 8e 2a 08 00 00 jle 0x860
36: 45 8b ad 08 01 00 00 mov 0x108(%r13),%r13d
3d: 44 89 e7 mov %r12d,%edi