bridge0: received packet on veth1_to_bridge with own address as source address (addr:a2:3b:a1:30:82:18, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6030/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=11333, q=457 ncpus=2)
task:syz.1.196 state:R running task stack:24120 pid:6030 tgid:6029 ppid:5229 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5270 [inline]
__schedule+0x17ff/0x4ad0 kernel/sched/core.c:6639
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6818
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6842
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
zap_pte_range mm/memory.c:1688 [inline]
zap_pmd_range mm/memory.c:1736 [inline]
zap_pud_range mm/memory.c:1765 [inline]
zap_p4d_range mm/memory.c:1786 [inline]
unmap_page_range+0x3818/0x42c0 mm/memory.c:1807
unmap_vmas+0x3cc/0x5f0 mm/memory.c:1897
exit_mmap+0x267/0xc20 mm/mmap.c:1921
__mmput+0x115/0x390 kernel/fork.c:1347
exit_mm+0x220/0x310 kernel/exit.c:571
do_exit+0x9b2/0x28e0 kernel/exit.c:926
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x176f/0x1810 kernel/signal.c:2936
arch_do_signal_or_restart+0x96/0x860 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0xc9/0x370 kernel/entry/common.c:218
do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5f437799b9
RSP: 002b:00007f5f444c1038 EFLAGS: 00000246 ORIG_RAX: 0000000000000097
RAX: 0000000000000000 RBX: 00007f5f43915f80 RCX: 00007f5f437799b9
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 00007f5f437e78d8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5f43915f80 R15: 00007ffe4ff4c6d8
rcu: rcu_preempt kthread starved for 9095 jiffies! g11333 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:26016 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5270 [inline]
__schedule+0x17ff/0x4ad0 kernel/sched/core.c:6639
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6961
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:__timer_delete_sync+0x5/0x310 kernel/time/timer.c:1636
Code: 13 00 48 89 df 31 f6 5b eb 1b 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 <48> 89 e5 41 57 41 56 41 55 41 54 53 48 83 e4 e0 48 81 ec a0 00 00
RSP: 0018:ffffc90000167b90 EFLAGS: 00000246
RAX: 0000000000208040 RBX: 0000000000000001 RCX: 0000000000000001
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: ffffc90000167bc0
RBP: ffffc90000167c90 R08: ffffffff9018b8af R09: 1ffffffff2031715
R10: dffffc0000000000 R11: fffffbfff2031716 R12: dffffc0000000000
R13: 1ffff9200002cf74 R14: ffffc90000167bc0 R15: 00000000ffffc30c
timer_delete_sync kernel/time/timer.c:1720 [inline]
del_timer_sync include/linux/timer.h:185 [inline]
schedule_timeout+0x1c8/0x310 kernel/time/timer.c:2582
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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5232 Comm: kworker/u9:3 Not tainted 6.11.0-rc3-next-20240815-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
Workqueue: krxrpcd rxrpc_peer_keepalive_worker
RIP: 0010:hlock_class kernel/locking/lockdep.c:222 [inline]
RIP: 0010:lookup_chain_cache_add kernel/locking/lockdep.c:3783 [inline]
RIP: 0010:validate_chain+0xff/0x5900 kernel/locking/lockdep.c:3839
Code: e8 03 48 89 44 24 60 42 0f b6 04 20 84 c0 0f 85 fc 4c 00 00 41 8b 5d 00 89 d8 25 00 80 04 00 3d 00 00 04 00 0f 85 7b 04 00 00 <81> e3 ff 1f 00 00 48 89 d8 48 c1 e8 06 48 8d 3c c5 00 c8 75 93 be
RSP: 0018:ffffc90000005e80 EFLAGS: 00000046
RAX: 0000000000040000 RBX: 00000000000c2001 RCX: 1ffff92000000bf0
RDX: 0000000000000000 RSI: ffff8880671129a8 RDI: ffff888067111e00
RBP: ffffc90000006180 R08: ffffffff9375c807 R09: 1ffffffff26eb900
R10: dffffc0000000000 R11: fffffbfff26eb901 R12: dffffc0000000000
R13: ffff8880671129c8 R14: ed82d5f6b68a240b R15: ffff8880671129c8
FS: 0000000000000000(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffefc192c08 CR3: 0000000072b5e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_acquire+0x137a/0x2040 kernel/locking/lockdep.c:5145
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5762
__raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:110 [inline]
_raw_spin_lock_irqsave+0xd5/0x120 kernel/locking/spinlock.c:162
__debug_check_no_obj_freed lib/debugobjects.c:979 [inline]
debug_check_no_obj_freed+0x234/0x580 lib/debugobjects.c:1020
slab_free_hook mm/slub.c:2233 [inline]
slab_free mm/slub.c:4517 [inline]
kmem_cache_free+0x115/0x3d0 mm/slub.c:4619
skb_ext_del include/linux/skbuff.h:4787 [inline]
nf_bridge_info_free net/bridge/br_netfilter_hooks.c:154 [inline]
br_nf_dev_queue_xmit+0x4f8/0x22e0 net/bridge/br_netfilter_hooks.c:877
NF_HOOK+0x700/0x7c0 include/linux/netfilter.h:314
br_nf_post_routing+0xa20/0xe80 net/bridge/br_netfilter_hooks.c:988
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x2a7/0x460 include/linux/netfilter.h:312
br_forward_finish+0xd8/0x130 net/bridge/br_forward.c:66
br_nf_forward_finish+0xb49/0xfb0 net/bridge/br_netfilter_hooks.c:688
NF_HOOK+0x700/0x7c0 include/linux/netfilter.h:314
br_nf_forward_ip+0x61e/0x7b0 net/bridge/br_netfilter_hooks.c:742
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x2a7/0x460 include/linux/netfilter.h:312
__br_forward+0x489/0x660 net/bridge/br_forward.c:115
deliver_clone net/bridge/br_forward.c:131 [inline]
maybe_deliver+0xb3/0x150 net/bridge/br_forward.c:190
br_flood+0x2e4/0x660 net/bridge/br_forward.c:236
br_handle_frame_finish+0x18ba/0x1fe0 net/bridge/br_input.c:215
br_nf_hook_thresh+0x472/0x590
br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0
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:5555
__netif_receive_skb_one_core net/core/dev.c:5659 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5775
process_backlog+0x662/0x15b0 net/core/dev.c:6108
__napi_poll+0xcb/0x490 net/core/dev.c:6772
napi_poll net/core/dev.c:6841 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6963
handle_softirqs+0x2c4/0x970 kernel/softirq.c:554
__do_softirq kernel/softirq.c:588 [inline]
invoke_softirq kernel/softirq.c:428 [inline]
__irq_exit_rcu+0xf4/0x1c0 kernel/softirq.c:637
irq_exit_rcu+0x9/0x30 kernel/softirq.c:649
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1037 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1037
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:raw_spin_rq_unlock_irq+0x19/0x90 kernel/sched/sched.h:1498
Code: 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 57 41 56 53 48 89 fb 66 90 48 89 df e8 be e9 5f 0a e8 59 12 36 00 fb 5b <41> 5e 41 5f c3 cc cc cc cc f3 0f 1e fa 49 bf 00 00 00 00 00 fc ff
RSP: 0018:ffffc900041176c8 EFLAGS: 00000282
RAX: 6d0bd563f4e61600 RBX: ffff8880b903ea40 RCX: ffffffff81705e3a
RDX: dffffc0000000000 RSI: ffffffff8c0ace40 RDI: ffffffff8c609dc0
RBP: ffffc900041178d0 R08: ffffffff9375c897 R09: 1ffffffff26eb912
R10: dffffc0000000000 R11: fffffbfff26eb913 R12: ffff888067111e18
R13: 0000000000000001 R14: ffff888067111e00 R15: ffff888067112570
__schedule+0x1a3a/0x4ad0 kernel/sched/core.c:6643
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6961
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:rxrpc_peer_keepalive_worker+0xd44/0xfc0 net/rxrpc/peer_event.c:332
Code: 8b 84 24 e0 00 00 00 4c 39 e0 0f 85 7f 02 00 00 48 8b 84 24 98 00 00 00 42 0f b6 04 30 84 c0 0f 85 2c 02 00 00 48 8b 44 24 28 <44> 0f b6 b8 90 fd ff ff 4c 8d a0 a0 fd ff ff 48 8b 44 24 20 48 83
RSP: 0018:ffffc90004117a60 EFLAGS: 00000246
RAX: ffff88802b21e4c0 RBX: ffffc90004117b40 RCX: 0000000000000001
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 0000000000000001
RBP: ffffc90004117bb0 R08: ffff88802b21e213 R09: 1ffff11005643c42
R10: dffffc0000000000 R11: ffffed1005643c43 R12: ffffc90004117b40
R13: 00000000000000b9 R14: dffffc0000000000 R15: 00000000000000a0
process_one_work kernel/workqueue.c:3232 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3313
worker_thread+0x86d/0xd10 kernel/workqueue.c:3390
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
net_ratelimit: 22266 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:a2:3b:a1:30:82:18, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:a2:3b:a1:30:82:18, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:a2:3b:a1:30:82:18, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 26449 callbacks suppressed
bridge0: received packet on veth1_to_bridge with own address as source address (addr:a2:3b:a1:30:82:18, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:a2:3b:a1:30:82:18, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:a2:3b:a1:30:82:18, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)