bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5003/1:b..l.. P6148/1:b..l..
rcu: (detected by 0, t=10988 jiffies, g=17537, q=1408 ncpus=2)
task:dhcpcd state:R running task stack:28168 pid:6148 tgid:6148 ppid:5298 task_flags:0x400040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7662
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:543 [inline]
irqentry_exit+0x14f/0x9b0 kernel/entry/common.c:154
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__sanitizer_cov_trace_pc+0x0/0x80 kernel/kcov.c:216
Code: 89 fb e8 23 00 00 00 48 8b 3d 74 ad ce 0c 48 89 de 5b e9 93 25 6b 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 04 24 65 48 8b 0d 08 ad 17 13 65 48 8b 15 08 ad
RSP: 0000:ffffc900061074b8 EFLAGS: 00000297
RAX: ffffffff824a410d RBX: 0000000000000001 RCX: 0000000000000000
RDX: ffff888034d3be80 RSI: 0000000000000000 RDI: 0000000000000020
RBP: dffffc0000000000 R08: ffffffff824a402a R09: 0000000000000000
R10: ffff888034d3c7a0 R11: ffffffff81b3b570 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffff824a402a R15: 0000000000000000
__update_page_owner_handle+0x14d/0x580 mm/page_owner.c:274
__set_page_owner+0x10a/0x4c0 mm/page_owner.c:360
set_page_owner include/linux/page_owner.h:33 [inline]
post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1856
prep_new_page mm/page_alloc.c:1864 [inline]
get_page_from_freelist+0x220f/0x2280 mm/page_alloc.c:3935
__alloc_frozen_pages_noprof+0x1fe/0x410 mm/page_alloc.c:5444
alloc_pages_mpol+0x21e/0x390 mm/mempolicy.c:2511
folio_alloc_mpol_noprof+0x39/0x160 mm/mempolicy.c:2530
vma_alloc_folio_noprof+0xe1/0x1e0 mm/mempolicy.c:2565
folio_prealloc mm/memory.c:-1 [inline]
wp_page_copy mm/memory.c:4070 [inline]
do_wp_page+0x1166/0x4b60 mm/memory.c:4535
handle_pte_fault mm/memory.c:6651 [inline]
__handle_mm_fault mm/memory.c:6776 [inline]
handle_mm_fault+0x15d7/0x3750 mm/memory.c:6943
do_user_addr_fault+0xb35/0x1480 arch/x86/mm/fault.c:1343
handle_page_fault arch/x86/mm/fault.c:1483 [inline]
exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595
RIP: 0033:0x7ff6c3916490
RSP: 002b:00007ffd2651c568 EFLAGS: 00010246
RAX: 0000000000000000 RBX: 00007ffd2651c578 RCX: 00007ff6c39a5670
RDX: 0000000000000000 RSI: 0000000000000018 RDI: 00007ff6c38d1a60
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000001
R10: 00007ff6c38d1a50 R11: 0000000000000246 R12: 00007ffd2651c6b0
R13: 0000000000000000 R14: 0000000000000000 R15: 0000556115c88ac0
task:udevd state:R running task stack:25248 pid:5003 tgid:5003 ppid:1 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
preempt_schedule_notrace+0x56/0x90 kernel/sched/core.c:7633
preempt_schedule_notrace_thunk+0x16/0x30 arch/x86/entry/thunk.S:13
class_preempt_notrace_destructor include/linux/preempt.h:497 [inline]
perf_trace_lock_acquire+0x3a5/0x440 include/trace/events/lock.h:23
__do_trace_lock_acquire include/trace/events/lock.h:23 [inline]
trace_lock_acquire include/trace/events/lock.h:23 [inline]
lock_acquire+0x303/0x350 kernel/locking/lockdep.c:5905
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:264 [inline]
__kasan_slab_free+0x5c/0x80 mm/kasan/common.c:296
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2780 [inline]
slab_free mm/slub.c:6630 [inline]
kmem_cache_free+0x182/0x650 mm/slub.c:6757
class_filename_destructor include/linux/fs.h:2591 [inline]
class_filename_maybe_null_destructor include/linux/fs.h:2595 [inline]
vfs_fstatat+0x13d/0x170 fs/stat.c:379
__do_sys_newfstatat fs/stat.c:542 [inline]
__se_sys_newfstatat+0x118/0x3a0 fs/stat.c:536
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f17aef11b0a
RSP: 002b:00007ffd395bc5f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 0000556a0f5dd428 RCX: 00007f17aef11b0a
RDX: 00007ffd395bc600 RSI: 0000556a0f5cbed3 RDI: 00000000ffffff9c
RBP: 0000556a0f849148 R08: 00063478c1c69200 R09: 3fffffffffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000001
R13: 00007ffd395bc600 R14: 0000000000000000 R15: 00063478c1c69200
rcu: rcu_preempt kthread starved for 277 jiffies! g17537 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->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:27368 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5583 [inline]
__schedule+0x17dd/0x5830 kernel/sched/core.c:7382
__schedule_loop kernel/sched/core.c:7459 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7474
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x1230 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9c/0x340 kernel/rcu/tree.c:2330
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
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: 6144 Comm: syz.4.87 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/15/2026
RIP: 0010:__lock_acquire+0xdd4/0x2de0 kernel/locking/lockdep.c:5302
Code: 19 10 00 0f 84 18 07 00 00 41 f6 45 22 10 75 2f 48 8b 5c 24 08 48 89 ab 98 0b 00 00 8b 83 a0 0b 00 00 ff c0 89 83 a0 0b 00 00 <83> f8 30 0f 83 5f 18 00 00 3b 05 85 54 42 14 0f 87 b2 18 00 00 41
RSP: 0018:ffffc90000a07918 EFLAGS: 00000002
RAX: 0000000000000007 RBX: ffff88802af88000 RCX: 0000000000000000
RDX: 000000004dbb4af1 RSI: 000000005970cd9e RDI: ffff88802af88000
RBP: 03813abc02fcf7df R08: ffffffff817879cf R09: 0000000000000000
R10: ffffc90000a07bf8 R11: ffffffff81b3b570 R12: 0000000000004000
R13: ffff88802af88ca0 R14: ffff88802af88ca0 R15: 0000000000000006
FS: 0000000000000000(0000) GS:ffff888123513000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055611e7064f0 CR3: 0000000077c9e000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600
Call Trace:
lock_acquire+0x115/0x350 kernel/locking/lockdep.c:5942
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xac/0x2550 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
kasan_save_free_info+0x40/0x50 mm/kasan/generic.c:584
poison_slab_object mm/kasan/common.c:264 [inline]
__kasan_slab_free+0x5c/0x80 mm/kasan/common.c:296
kasan_slab_free include/linux/kasan.h:235 [inline]
slab_free_hook mm/slub.c:2780 [inline]
slab_free mm/slub.c:6630 [inline]
kmem_cache_free+0x182/0x650 mm/slub.c:6757
kfree_skb_reason include/linux/skbuff.h:1329 [inline]
kfree_skb include/linux/skbuff.h:1338 [inline]
ip6_mc_input+0x878/0xc80 net/ipv6/ip6_input.c:639
ip_sabotage_in+0x1e1/0x270 net/bridge/br_netfilter_hooks.c:989
nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:633
nf_hook include/linux/netfilter.h:280 [inline]
NF_HOOK+0x21f/0x3c0 include/linux/netfilter.h:323
__netif_receive_skb_one_core net/core/dev.c:6433 [inline]
__netif_receive_skb net/core/dev.c:6546 [inline]
netif_receive_skb_internal net/core/dev.c:6632 [inline]
netif_receive_skb+0x278/0xbf0 net/core/dev.c:6691
NF_HOOK+0xa4/0x3a0 include/linux/netfilter.h:325
br_handle_frame_finish+0x1219/0x1ae0 net/bridge/br_input.c:237
br_nf_hook_thresh+0x3dd/0x4c0 net/bridge/br_netfilter_hooks.c:-1
br_nf_pre_routing_finish_ipv6+0x90c/0xc40 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:325 [inline]
br_nf_pre_routing_ipv6+0x382/0x6f0 net/bridge/br_netfilter_ipv6.c:183
nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:293 [inline]
br_handle_frame+0x1329/0x1600 net/bridge/br_input.c:453
__netif_receive_skb_core+0x989/0x30f0 net/core/dev.c:6312
__netif_receive_skb_one_core net/core/dev.c:6431 [inline]
__netif_receive_skb net/core/dev.c:6546 [inline]
process_backlog+0x727/0x18b0 net/core/dev.c:6897
__napi_poll+0xaa/0x330 net/core/dev.c:7966
napi_poll net/core/dev.c:8029 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8186
handle_softirqs+0x265/0x8d0 kernel/softirq.c:669
__do_softirq kernel/softirq.c:703 [inline]
invoke_softirq kernel/softirq.c:542 [inline]
__irq_exit_rcu+0xc6/0x220 kernel/softirq.c:786
irq_exit_rcu+0x9/0x30 kernel/softirq.c:809
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:csd_lock_wait kernel/smp.c:389 [inline]
RIP: 0010:smp_call_function_many_cond+0x1132/0x1500 kernel/smp.c:1028
Code: 78 44 8b 2b 44 89 ee 83 e6 01 31 ff e8 47 6f 0c 00 41 83 e5 01 49 bd 00 00 00 00 00 fc ff df 75 07 e8 22 6a 0c 00 eb 35 f3 90 <43> 0f b6 04 2c 84 c0 75 0f f7 03 01 00 00 00 74 1d e8 08 6a 0c 00
RSP: 0018:ffffc900060bf060 EFLAGS: 00000293
RAX: ffffffff81bcb8e8 RBX: ffff8880b8244028 RCX: ffff88802af88000
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffffc900060bf1b0 R08: ffff888013b46d87 R09: 1ffff11002768db0
R10: dffffc0000000000 R11: ffffed1002768db1 R12: 1ffff11017048805
R13: dffffc0000000000 R14: 1ffff110055f12b3 R15: 0000000000000000
__flush_tlb_multi arch/x86/include/asm/paravirt.h:46 [inline]
flush_tlb_multi arch/x86/mm/tlb.c:1361 [inline]
flush_tlb_mm_range+0x910/0x10b0 arch/x86/mm/tlb.c:1435
tlb_flush arch/x86/include/asm/tlb.h:23 [inline]
tlb_flush_mmu_tlbonly include/asm-generic/tlb.h:461 [inline]
zap_pte_range mm/memory.c:2055 [inline]
zap_pmd_range mm/memory.c:2114 [inline]
zap_pud_range mm/memory.c:2142 [inline]
zap_p4d_range mm/memory.c:2163 [inline]
__zap_vma_range+0x3f52/0x4f70 mm/memory.c:2203
unmap_vmas+0x38b/0x550 mm/memory.c:2272
exit_mmap+0x290/0xa40 mm/mmap.c:1315
__mmput+0x118/0x420 kernel/fork.c:1192
exit_mm+0x18e/0x240 kernel/exit.c:586
do_exit+0x6a8/0x2360 kernel/exit.c:967
do_group_exit+0x22d/0x2f0 kernel/exit.c:1123
get_signal+0x1216/0x12c0 kernel/signal.c:3112
arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbffc59f559
Code: Unable to access opcode bytes at 0x7fbffc59f52f.
RSP: 002b:00007ffec7f48038 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffff92 RBX: 000000000001d5e4 RCX: 00007fbffc59f559
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fbffc82618c
RBP: 0000000000000032 R08: 3fffffffffffffff R09: 0000000000000000
R10: 00007ffec7f48140 R11: 0000000000000246 R12: 00007ffec7f48160
R13: 00007fbffc82618c R14: 000000000001d616 R15: 00007ffec7f48140