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)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1):
P5229/1:b..l P14642/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=37845, q=415 ncpus=2)
task:syz.0.4139 state:R running task stack:24656 pid:14642 tgid:14641 ppid:10992 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6997
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:folio_try_get+0x22b/0x350 include/linux/page_ref.h:264
Code: 13 8c be 6f 03 00 00 48 c7 c2 80 e8 13 8c e8 bc c2 a3 ff 48 c7 c7 e0 7d 93 8e 4c 89 f6 e8 fd 82 a3 ff e8 a8 be ae ff 89 d8 5b <41> 5c 41 5d 41 5e 41 5f 5d e9 c2 47 23 0a e8 22 ed c7 ff e9 40 ff
RSP: 0018:ffffc90002fcf0f0 EFLAGS: 00000283
RAX: 0000000000000001 RBX: ffffea0001702cc0 RCX: ffffc90002fcf003
RDX: 0000000000000001 RSI: ffffffff8c0adc40 RDI: ffffffff8c60fba0
RBP: 0000000000000001 R08: ffffffff901ced2f R09: 1ffffffff2039da5
R10: dffffc0000000000 R11: fffffbfff2039da6 R12: 0000000000000001
R13: ffffffffffffff00 R14: ffffffff81ccf72e R15: ffffea0001702cf4
find_get_entry mm/filemap.c:2006 [inline]
find_lock_entries+0x2e8/0xef0 mm/filemap.c:2096
shmem_undo_range+0x2c2/0x1cf0 mm/shmem.c:1014
shmem_truncate_range mm/shmem.c:1144 [inline]
shmem_evict_inode+0x29b/0xa80 mm/shmem.c:1272
evict+0x4ea/0x9b0 fs/inode.c:723
__dentry_kill+0x20d/0x630 fs/dcache.c:615
dput+0x19f/0x2b0 fs/dcache.c:857
__fput+0x5d2/0x880 fs/file_table.c:439
task_work_run+0x251/0x310 kernel/task_work.c:228
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xa2f/0x28e0 kernel/exit.c:939
do_group_exit+0x207/0x2c0 kernel/exit.c:1088
get_signal+0x16a3/0x1740 kernel/signal.c:2917
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: 0033:0x7f4adcf7cadf
RSP: 002b:00007f4adddc8df0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: 00000000006f2000 RBX: 0000000001000000 RCX: 00007f4adcf7cadf
RDX: 0000000001000000 RSI: 00007f4ad2600000 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000009600
R10: 0000000020012cc2 R11: 0000000000000293 R12: 0000000000000003
R13: 00007f4adddc8ef0 R14: 00007f4adddc8eb0 R15: 00007f4ad2600000
task:syz-executor state:R running task stack:19536 pid:5229 tgid:5229 ppid:5221 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6854
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6878
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]
copy_pte_range mm/memory.c:1194 [inline]
copy_pmd_range+0x7b90/0x85f0 mm/memory.c:1255
copy_pud_range mm/memory.c:1292 [inline]
copy_p4d_range mm/memory.c:1316 [inline]
copy_page_range+0x99f/0xe90 mm/memory.c:1414
dup_mmap kernel/fork.c:750 [inline]
dup_mm kernel/fork.c:1674 [inline]
copy_mm+0x11fb/0x1f40 kernel/fork.c:1723
copy_process+0x1845/0x3d50 kernel/fork.c:2372
kernel_clone+0x226/0x8f0 kernel/fork.c:2784
__do_sys_clone kernel/fork.c:2927 [inline]
__se_sys_clone kernel/fork.c:2911 [inline]
__x64_sys_clone+0x258/0x2a0 kernel/fork.c:2911
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: 0033:0x7f2369974853
RSP: 002b:00007ffcbaed2988 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2369974853
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 0000000000000001 R08: 0000000000000000 R09: 0000000000000000
R10: 00005555815457d0 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000053800 R14: 0000000000053779 R15: 00007ffcbaed2b10
rcu: rcu_preempt kthread starved for 10490 jiffies! g37845 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:25712 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6767
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+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/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: 5235 Comm: kworker/0:4 Not tainted 6.12.0-rc2-syzkaller-00006-g87d6aab2389e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events_long defense_work_handler
RIP: 0010:__netif_rx+0x15/0xc0 net/core/dev.c:5212
Code: 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 55 53 48 89 fb e8 f2 5c 02 f8 48 c7 c0 7c 1f 1d 90 <48> c1 e8 03 48 b9 00 00 00 00 00 fc ff df 0f b6 04 08 84 c0 75 6a
RSP: 0018:ffffc90000006310 EFLAGS: 00000246
RAX: ffffffff901d1f7c RBX: ffff8880aec7cdc0 RCX: ffff88807fb0bc00
RDX: 0000000000000100 RSI: 0000000000000000 RDI: ffff8880aec7cdc0
RBP: ffff888031f5e000 R08: ffffffff867c22a1 R09: ffffffff89914097
R10: 0000000000000002 R11: ffff88807fb0bc00 R12: ffff888031198000
R13: ffff88805fe38000 R14: 0000000000000000 R15: ffff8880aec7cdc0
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f36e4249d46 CR3: 000000000e734000 CR4: 0000000000350ef0
Call Trace:
veth_forward_skb drivers/net/veth.c:322 [inline]
veth_xmit+0x61d/0xae0 drivers/net/veth.c:375
__netdev_start_xmit include/linux/netdevice.h:4916 [inline]
netdev_start_xmit include/linux/netdevice.h:4925 [inline]
xmit_one net/core/dev.c:3588 [inline]
dev_hard_start_xmit+0x27c/0x7e0 net/core/dev.c:3604
__dev_queue_xmit+0x1b11/0x3ed0 net/core/dev.c:4428
dev_queue_xmit include/linux/netdevice.h:3094 [inline]
br_dev_queue_push_xmit+0x703/0x8d0 net/bridge/br_forward.c:53
NF_HOOK+0x702/0x7c0 include/linux/netfilter.h:314
br_nf_post_routing+0xa20/0xe80 net/bridge/br_netfilter_hooks.c:989
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc5/0x220 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:689
NF_HOOK+0x702/0x7c0 include/linux/netfilter.h:314
br_nf_forward_ip+0x61e/0x7b0 net/bridge/br_netfilter_hooks.c:743
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc5/0x220 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
br_handle_frame_finish+0x18ba/0x1fe0 net/bridge/br_input.c:215
br_nf_hook_thresh+0x474/0x590
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+0x9ff/0x1530 net/bridge/br_input.c:424
__netif_receive_skb_core+0x13ea/0x4570 net/core/dev.c:5560
__netif_receive_skb_one_core net/core/dev.c:5664 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5779
process_backlog+0x662/0x15b0 net/core/dev.c:6111
__napi_poll+0xcd/0x490 net/core/dev.c:6775
napi_poll net/core/dev.c:6844 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6966
handle_softirqs+0x2c7/0x980 kernel/softirq.c:554
do_softirq+0x11b/0x1e0 kernel/softirq.c:455
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
local_bh_enable include/linux/bottom_half.h:33 [inline]
update_defense_level+0x8ec/0xcf0 net/netfilter/ipvs/ip_vs_ctl.c:210
defense_work_handler+0x22/0xd0 net/netfilter/ipvs/ip_vs_ctl.c:235
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa65/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
kthread+0x2f2/0x390 kernel/kthread.c:389
ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
net_ratelimit: 20708 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:8a:25:93:9b:b4, 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:2e:8a:25:93:9b:b4, 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:2e:8a:25:93:9b:b4, 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:2e:8a:25:93:9b:b4, 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:2e:8a:25:93:9b:b4, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)