bridge0: received packet on veth0_to_bridge 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): P5843/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=44457, q=385 ncpus=2)
task:syz-executor state:R running task stack:20416 pid:5843 tgid:5843 ppid:5837 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6693
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7015
irqentry_exit+0x5e/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+0x94/0x22d0
Code: 8b 4d 38 4c 89 eb 48 c1 eb 03 42 0f b6 04 23 84 c0 0f 85 e1 19 00 00 41 8b 45 00 85 c0 0f 84 d7 18 00 00 89 84 24 84 00 00 00 <48> 89 6c 24 78 48 89 8c 24 90 00 00 00 48 89 5c 24 20 bf 01 00 00
RSP: 0018:ffffc90003cbf6d0 EFLAGS: 00000202
RAX: 0000000000000001 RBX: 1ffff92000797ef4 RCX: ffffc90003cbff58
RDX: dffffc0000000000 RSI: ffffffff8be00130 RDI: ffffc90003cbf7a0
RBP: ffffc90003cbf7d8 R08: 000000000000000a R09: ffffc90003cbf890
R10: ffffc90003cbf7f0 R11: ffffffff8180a270 R12: dffffc0000000000
R13: ffffc90003cbf7a0 R14: ffffffff8be00130 R15: 0000000000000000
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 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_unref_page+0xdf9/0x1140 mm/page_alloc.c:2657
__slab_free+0x31b/0x3d0 mm/slub.c:4490
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:247 [inline]
slab_post_alloc_hook mm/slub.c:4085 [inline]
slab_alloc_node mm/slub.c:4134 [inline]
kmem_cache_alloc_noprof+0x135/0x2a0 mm/slub.c:4141
getname_flags+0xb7/0x540 fs/namei.c:139
vfs_fstatat+0x12c/0x190 fs/stat.c:340
__do_sys_newfstatat fs/stat.c:505 [inline]
__se_sys_newfstatat fs/stat.c:499 [inline]
__x64_sys_newfstatat+0x11d/0x1a0 fs/stat.c:499
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9d7897cf2a
RSP: 002b:00007ffd2a4d9908 EFLAGS: 00000286 ORIG_RAX: 0000000000000106
RAX: ffffffffffffffda RBX: 00007f9d789f15fc RCX: 00007f9d7897cf2a
RDX: 00007ffd2a4d9930 RSI: 00007ffd2a4d99c0 RDI: 00000000ffffff9c
RBP: 00007ffd2a4d99c0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000286 R12: 00007ffd2a4daa40
R13: 00007f9d789f15fc R14: 000000000004c28e R15: 00007ffd2a4daa80
rcu: rcu_preempt kthread starved for 9595 jiffies! g44457 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:25784 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6785
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.12.0-rc7-syzkaller-00127-gea301aec8bb7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:skb_ext_find include/linux/skbuff.h:4849 [inline]
RIP: 0010:nf_bridge_info_get include/linux/netfilter_bridge.h:30 [inline]
RIP: 0010:nf_bridge_update_protocol+0x68/0x170 net/bridge/br_netfilter_hooks.c:256
Code: 2e 74 fa f6 f6 c3 01 75 09 e8 24 71 fa f6 31 db eb 45 e8 1b 71 fa f6 49 8d 9e e8 00 00 00 48 89 d8 48 c1 e8 03 42 80 3c 38 00 <74> 08 48 89 df e8 5e 4d 64 f7 48 8b 1b 48 8d 7b 04 48 89 f8 48 c1
RSP: 0018:ffffc90000157170 EFLAGS: 00000246
RAX: 1ffff1102f982f5d RBX: ffff88817cc17ae8 RCX: ffff88801ce8da00
RDX: 0000000000000100 RSI: 0000000000000001 RDI: 0000000000000000
RBP: ffff88817cc17a81 R08: ffffffff8a9a78e2 R09: 1ffffffff203a17d
R10: dffffc0000000000 R11: fffffbfff203a17e R12: dffffc0000000000
R13: ffff888061f5e000 R14: ffff88817cc17a00 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f6253ff6f08 CR3: 0000000027aec000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
br_nf_pre_routing_finish_ipv6+0x9b2/0xdd0 net/bridge/br_netfilter_ipv6.c:152
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x379/0x770 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424
__netif_receive_skb_core+0x13e8/0x4570 net/core/dev.c:5564
__netif_receive_skb_one_core net/core/dev.c:5668 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5783
process_backlog+0x662/0x15b0 net/core/dev.c:6115
__napi_poll+0xcb/0x490 net/core/dev.c:6779
napi_poll net/core/dev.c:6848 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6970
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
run_ksoftirqd+0xca/0x130 kernel/softirq.c:927
smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)