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): P12523/1:b..l
rcu: (detected by 1, t=10003 jiffies, g=11933, q=2634 ncpus=2)
task:syz-executor state:R running task stack:0 pid:12523 tgid:12523 ppid:280 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5945 [inline]
__schedule+0x132b/0x1e00 kernel/sched/core.c:7789
preempt_schedule_irq+0x9c/0x100 kernel/sched/core.c:8115
raw_irqentry_exit_cond_resched+0x33/0x40 kernel/entry/common.c:311
irqentry_exit+0x4a/0x60 kernel/entry/common.c:354
sysvec_apic_timer_interrupt+0x50/0x90 arch/x86/kernel/apic/apic.c:1049
asm_sysvec_apic_timer_interrupt+0x1f/0x30 arch/x86/include/asm/idtentry.h:702
RIP: 0010:unwind_get_return_address+0x6b/0x90 arch/x86/kernel/unwind_frame.c:20
Code: 48 89 df e8 87 b9 97 00 48 8b 3b e8 7f 11 13 00 85 c0 74 14 43 80 3c 37 00 74 08 48 89 df e8 6c b9 97 00 48 8b 03 eb 02 31 c0 <5b> 41 5e 41 5f 5d c3 cc cc cc cc cc 89 d9 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90001347000 EFLAGS: 00000246
RAX: ffffffff81d7b62b RBX: ffffc90001347070 RCX: 0000000001347000
RDX: ffffc90001347601 RSI: 1ffff92000268e06 RDI: ffffffff81d7b62b
RBP: ffffc90001347018 R08: ffffc900013470f0 R09: ffffc900013470e8
R10: 000000000000000a R11: ffffffff81740970 R12: ffff888131755f00
R13: 1ffff92000268e30 R14: dffffc0000000000 R15: 1ffff92000268e0e
arch_stack_walk+0x10b/0x170 arch/x86/kernel/stacktrace.c:26
stack_trace_save+0x9d/0xe0 kernel/stacktrace.c:122
save_stack+0xf8/0x1f0 mm/page_owner.c:174
__reset_page_owner+0x79/0x450 mm/page_owner.c:315
reset_page_owner include/linux/page_owner.h:28 [inline]
free_pages_prepare mm/page_alloc.c:1321 [inline]
free_unref_page+0xae5/0xdd0 mm/page_alloc.c:2810
__free_pages+0x6b/0x3b0 mm/page_alloc.c:5273
__free_slab+0xb6/0x110 mm/slub.c:2726
free_slab+0x18/0xf0 mm/slub.c:2749
discard_slab mm/slub.c:2755 [inline]
__put_partials+0x11b/0x150 mm/slub.c:3224
put_cpu_partial+0x91/0xc0 mm/slub.c:3299
__slab_free+0x1d3/0x2b0 mm/slub.c:4532
do_slab_free mm/slub.c:4614 [inline]
___cache_free+0xc9/0xe0 mm/slub.c:4725
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0xb5/0x130 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x180 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x28/0x90 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4164 [inline]
kmem_cache_alloc_bulk_noprof+0x27b/0x4a0 mm/slub.c:5063
mt_alloc_bulk lib/maple_tree.c:167 [inline]
mas_alloc_nodes+0x43c/0x9e0 lib/maple_tree.c:1263
mas_node_count_gfp lib/maple_tree.c:1321 [inline]
mas_preallocate+0x764/0xc60 lib/maple_tree.c:5547
vma_iter_prealloc mm/vma.h:446 [inline]
__mmap_region mm/mmap.c:1464 [inline]
mmap_region+0x122a/0x1bc0 mm/mmap.c:1634
do_mmap+0xb6d/0x13c0 mm/mmap.c:508
vm_mmap_pgoff+0x38f/0x4e0 mm/util.c:594
ksys_mmap_pgoff+0xfb/0x1e0 mm/mmap.c:557
__do_sys_mmap arch/x86/kernel/sys_x86_64.c:86 [inline]
__se_sys_mmap arch/x86/kernel/sys_x86_64.c:79 [inline]
__x64_sys_mmap+0x121/0x140 arch/x86/kernel/sys_x86_64.c:79
x64_sys_call+0x13bf/0x2ee0 arch/x86/include/generated/asm/syscalls_64.h:10
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0x58/0xf0 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x76/0x7e
RIP: 0033:0x7f6557d8e9e3
RSP: 002b:00007ffca93853f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f6557fb6038 RCX: 00007f6557d8e9e3
RDX: 0000000000000000 RSI: 0000000000402000 RDI: 0000000000000000
RBP: 00007f6557fb6038 R08: 00000000ffffffff R09: 0000000000000000
R10: 0000000000000022 R11: 0000000000000246 R12: 0000000000000008
R13: 0000000000000003 R14: 0000000000000009 R15: 0000000000000000
net_ratelimit: 133122 callbacks suppressed
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 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)
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 306 Comm: kworker/1:2 Not tainted 6.12.30-syzkaller-g88813c11dc64 #0 d54adf55d921c39fb7151a4c54847246e47052b7
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: mld mld_report_work
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x15/0x70 kernel/kcov.c:217
Code: cc cc cc cc cc b8 33 2a 5c 0f 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 48 89 e5 48 8b 45 08 65 48 8b 0c 25 40 e9 04 00 <65> 8b 15 0c 3e 7f 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75
RSP: 0018:ffffc900002301e8 EFLAGS: 00000282
RAX: ffffffff84e0ec69 RBX: ffff888115c7f8c0 RCX: ffff88810c7f4c00
RDX: 0000000000000017 RSI: 0000000000000001 RDI: ffff888115c7f8c0
RBP: ffffc900002301e8 R08: ffffc90000230540 R09: ffffc90000230550
R10: ffffc900002306b0 R11: fffff520000460da R12: 0000000000000001
R13: ffffc90000230540 R14: 0000000000000003 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8881f6f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3b023b2060 CR3: 000000010a3d0000 CR4: 00000000003526b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 3a810b1eb6134bdc DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
find_match+0x39/0x10f0 net/ipv6/route.c:773
__find_rr_leaf+0x23c/0x790 net/ipv6/route.c:869
find_rr_leaf net/ipv6/route.c:890 [inline]
rt6_select net/ipv6/route.c:934 [inline]
fib6_table_lookup+0x2c5/0x9b0 net/ipv6/route.c:2230
ip6_pol_route+0x167/0x12c0 net/ipv6/route.c:2266
ip6_pol_route_input+0x5a/0x80 net/ipv6/route.c:2323
pol_lookup_func include/net/ip6_fib.h:626 [inline]
fib6_rule_lookup+0x4cc/0x6b0 net/ipv6/fib6_rules.c:117
ip6_route_input_lookup net/ipv6/route.c:2335 [inline]
ip6_route_input+0x59f/0x8d0 net/ipv6/route.c:2631
ip6_rcv_finish_core net/ipv6/ip6_input.c:66 [inline]
ip6_rcv_finish+0x15a/0x3c0 net/ipv6/ip6_input.c:77
NF_HOOK include/linux/netfilter.h:317 [inline]
ipv6_rcv+0xed/0x220 net/ipv6/ip6_input.c:309
__netif_receive_skb_one_core net/core/dev.c:5757 [inline]
__netif_receive_skb net/core/dev.c:5870 [inline]
process_backlog+0x44b/0xae0 net/core/dev.c:6202
__napi_poll+0xd3/0x610 net/core/dev.c:6853
napi_poll net/core/dev.c:6922 [inline]
net_rx_action+0x584/0xce0 net/core/dev.c:7044
handle_softirqs+0x1ae/0x630 kernel/softirq.c:603
__do_softirq+0xf/0x16 kernel/softirq.c:641
do_softirq+0xa6/0x100 kernel/softirq.c:485
__local_bh_enable_ip+0x74/0x80 kernel/softirq.c:412
__raw_spin_unlock_bh include/linux/spinlock_api_smp.h:167 [inline]
_raw_spin_unlock_bh+0x54/0x60 kernel/locking/spinlock.c:210
spin_unlock_bh include/linux/spinlock.h:396 [inline]
mld_report_work+0x8b2/0x1290 net/ipv6/mcast.c:1632
process_one_work kernel/workqueue.c:3238 [inline]
process_scheduled_works+0x7d5/0x1020 kernel/workqueue.c:3319
worker_thread+0xc58/0x1250 kernel/workqueue.c:3400
kthread+0x2c7/0x370 kernel/kthread.c:389
ret_from_fork+0x64/0xa0 arch/x86/kernel/process.c:153
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244