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): P14613/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=52177, q=330 ncpus=2)
task:syz-executor state:R running task stack:28448 pid:14613 tgid:14613 ppid:5868 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7004
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:__sanitizer_cov_trace_pc+0x41/0x70 kernel/kcov.c:217
Code: 00 48 8b 34 24 74 1d f6 c4 01 74 43 a9 00 00 0f 00 75 3c a9 00 00 f0 00 75 35 8b 82 1c 16 00 00 85 c0 74 2b 8b 82 f8 15 00 00 <83> f8 02 75 20 48 8b 8a 00 16 00 00 8b 92 fc 15 00 00 48 8b 01 48
RSP: 0018:ffffc90003377860 EFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff88801e9fce30 RCX: ffffffff81f8bcc5
RDX: ffff888027798000 RSI: ffffffff81fae797 RDI: ffff88801e9fce30
RBP: ffff88801e9fce80 R08: 0000000000000004 R09: 0000000000000001
R10: 0000000000000001 R11: 00000000000a21ec R12: 0000000001580370
R13: 0000000000000001 R14: 0000000000000000 R15: ffff88801e9fce38
rcu_read_unlock include/linux/rcupdate.h:878 [inline]
page_ext_put+0x17/0xd0 mm/page_ext.c:550
__reset_page_owner+0x28d/0x400 mm/page_owner.c:300
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1108 [inline]
free_unref_page+0x5f4/0xdc0 mm/page_alloc.c:2638
__put_partials+0x14c/0x170 mm/slub.c:3145
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x192/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 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]
__do_kmalloc_node mm/slub.c:4263 [inline]
__kmalloc_noprof+0x199/0x400 mm/slub.c:4276
kmalloc_noprof include/linux/slab.h:882 [inline]
kzalloc_noprof include/linux/slab.h:1014 [inline]
tomoyo_encode2+0x100/0x3e0 security/tomoyo/realpath.c:45
tomoyo_encode+0x29/0x50 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x19d/0x720 security/tomoyo/realpath.c:283
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x273/0x450 security/tomoyo/file.c:822
tomoyo_path_symlink+0x98/0xe0 security/tomoyo/tomoyo.c:212
security_path_symlink+0x152/0x2e0 security/security.c:1980
do_symlinkat+0x10e/0x310 fs/namei.c:4639
__do_sys_symlinkat fs/namei.c:4657 [inline]
__se_sys_symlinkat fs/namei.c:4654 [inline]
__x64_sys_symlinkat+0x93/0xc0 fs/namei.c:4654
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f0017d7d577
RSP: 002b:00007fff1aec8f48 EFLAGS: 00000206 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0017d7d577
RDX: 00007f0017df19b4 RSI: 00000000ffffff9c RDI: 00007fff1aec8fd0
RBP: 00007fff1aec8f7c R08: 0000000000000017 R09: 00007fff1aec8c97
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000032
R13: 000000000005636a R14: 0000000000056314 R15: 00007fff1aec8fd0
rcu: rcu_preempt kthread starved for 10312 jiffies! g52177 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:28400 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 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: 939 Comm: kworker/0:2 Not tainted 6.12.0-rc3-syzkaller-00044-g2f87d0916ce0 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:__find_rr_leaf+0x296/0xe00 net/ipv6/route.c:801
Code: 08 0f 84 80 01 00 00 e8 08 c1 c2 f7 48 83 3c 24 00 74 43 e8 fc c0 c2 f7 48 8d bb 90 00 00 00 48 89 f8 48 c1 e8 03 0f b6 04 28 <84> c0 74 08 3c 03 0f 8e 3a 09 00 00 44 8b a3 90 00 00 00 44 8b 74
RSP: 0018:ffffc900000074e0 EFLAGS: 00000a02
RAX: 0000000000000000 RBX: ffff88802834ec00 RCX: ffffffff89cac299
RDX: ffff888025d03c00 RSI: ffffffff89cac1a4 RDI: ffff88802834ec90
RBP: dffffc0000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001
R13: ffffc900000077e8 R14: 0000000000000000 R15: ffff88807d39fcb8
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f3098b052d8 CR3: 00000000789a2000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
find_rr_leaf net/ipv6/route.c:853 [inline]
rt6_select net/ipv6/route.c:897 [inline]
fib6_table_lookup+0x57e/0xa30 net/ipv6/route.c:2195
ip6_pol_route+0x1cd/0x1120 net/ipv6/route.c:2231
pol_lookup_func include/net/ip6_fib.h:616 [inline]
fib6_rule_lookup+0x536/0x720 net/ipv6/fib6_rules.c:117
ip6_route_input_lookup net/ipv6/route.c:2300 [inline]
ip6_route_input+0x663/0xc10 net/ipv6/route.c:2596
ip6_rcv_finish_core.constprop.0+0x1a0/0x5d0 net/ipv6/ip6_input.c:66
ip6_rcv_finish net/ipv6/ip6_input.c:77 [inline]
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
ipv6_rcv+0x1e4/0x680 net/ipv6/ip6_input.c:309
__netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5666
__netif_receive_skb+0x1d/0x160 net/core/dev.c:5779
process_backlog+0x443/0x15f0 net/core/dev.c:6111
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6775
napi_poll net/core/dev.c:6844 [inline]
net_rx_action+0xa92/0x1010 net/core/dev.c:6966
handle_softirqs+0x213/0x8f0 kernel/softirq.c:554
do_softirq kernel/softirq.c:455 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:442
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
spin_unlock_bh include/linux/spinlock.h:396 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
nsim_dev_trap_report_work+0x870/0xc80 drivers/net/netdevsim/dev.c:850
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
net_ratelimit: 14255 callbacks suppressed
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:1a:d5:66:1d:5a, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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:2e:1a:d5:66:1d:5a, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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:2e:1a:d5:66:1d:5a, vlan:0)
net_ratelimit: 17551 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:1a:d5:66:1d:5a, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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:2e:1a:d5:66:1d:5a, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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:2e:1a:d5:66:1d:5a, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)