syzbot

bridge0: received packet on bridge_slave_0 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): P5817/1:b..l P5803/1:b..l
rcu: 	(detected by 1, t=10503 jiffies, g=73157, q=607 ncpus=2)
task:syz-executor    state:R  running task     stack:22784 pid:5803  tgid:5803  ppid:5801   flags:0x00004002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7078
 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:arch_stack_walk+0xc3/0x100 arch/x86/kernel/stacktrace.c:30
Code: ff ff 85 c0 74 10 48 89 df e8 b9 c9 08 00 48 85 c0 48 89 c6 75 d1 48 8b 45 d0 65 48 2b 04 25 28 00 00 00 75 34 48 83 c4 68 5b <41> 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 65 48 8b 05 17 69 c3 7e
RSP: 0018:ffffc90002fd7ab0 EFLAGS: 00000282
RAX: 0000000000000000 RBX: fffff520005faf5c RCX: ffffc90002fd7970
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88807eca8444
RBP: ffffc90002fd7ad0 R08: 0000000000000000 R09: fffffbfff20be082
R10: ffffffff905f0417 R11: 0000000000000002 R12: ffffffff8185c340
R13: ffffc90002fd7b00 R14: 0000000000000000 R15: ffff88807eca8000
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 save_stack+0x162/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x8d/0x400 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+0x661/0x1080 mm/page_alloc.c:2657
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:385
 kmalloc_noprof include/linux/slab.h:901 [inline]
 kzalloc_noprof include/linux/slab.h:1037 [inline]
 alloc_pipe_info+0x10e/0x590 fs/pipe.c:798
 get_pipe_inode fs/pipe.c:890 [inline]
 create_pipe_files+0x8c/0x850 fs/pipe.c:922
 __do_pipe_flags fs/pipe.c:973 [inline]
 do_pipe2+0xb0/0x1d0 fs/pipe.c:1024
 __do_sys_pipe2 fs/pipe.c:1042 [inline]
 __se_sys_pipe2 fs/pipe.c:1040 [inline]
 __x64_sys_pipe2+0x54/0x80 fs/pipe.c:1040
 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: 0033:0x7fcc5777ec39
RSP: 002b:00007ffdb03a2bb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000125
RAX: ffffffffffffffda RBX: 0000555560e2bb10 RCX: 00007fcc5777ec39
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00007ffdb03a2bc8
RBP: 00007ffdb03a3180 R08: 0000000000000007 R09: 0000555560e3b850
R10: 9d5037b6ed9bc392 R11: 0000000000000246 R12: 00007ffdb03a2dc0
R13: 0000555560e30450 R14: 0000555560e38220 R15: 585858582e7a7973
 </TASK>
task:syz-executor    state:R  running task     stack:23056 pid:5817  tgid:5817  ppid:5811   flags:0x00000000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6935
 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
 unwind_next_frame+0x1776/0x20c0 arch/x86/kernel/unwind_orc.c:672
 arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25
 stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
 save_stack+0x162/0x1f0 mm/page_owner.c:156
 __reset_page_owner+0x8d/0x400 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+0x661/0x1080 mm/page_alloc.c:2657
 __put_partials+0x14c/0x170 mm/slub.c:3142
 qlink_free mm/kasan/quarantine.c:163 [inline]
 qlist_free_all+0x4e/0x120 mm/kasan/quarantine.c:179
 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:385
 kasan_kmalloc include/linux/kasan.h:260 [inline]
 __do_kmalloc_node mm/slub.c:4283 [inline]
 __kmalloc_noprof+0x21c/0x510 mm/slub.c:4295
 kmalloc_noprof include/linux/slab.h:905 [inline]
 tomoyo_realpath_from_path+0xb9/0x720 security/tomoyo/realpath.c:251
 tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
 tomoyo_path_perm+0x276/0x460 security/tomoyo/file.c:822
 tomoyo_path_unlink+0x92/0xe0 security/tomoyo/tomoyo.c:162
 security_path_unlink+0x145/0x2b0 security/security.c:1960
 do_unlinkat+0x50b/0x760 fs/namei.c:4584
 __do_sys_unlink fs/namei.c:4635 [inline]
 __se_sys_unlink fs/namei.c:4633 [inline]
 __x64_sys_unlink+0xc5/0x110 fs/namei.c:4633
 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: 0033:0x7f7f4217f4c7
RSP: 002b:00007ffe09c5f618 EFLAGS: 00000206 ORIG_RAX: 0000000000000057
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7f4217f4c7
RDX: 00007ffe09c5f640 RSI: 00007ffe09c5f6d0 RDI: 00007ffe09c5f6d0
RBP: 00007ffe09c5f6d0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000100 R11: 0000000000000206 R12: 00007ffe09c60750
R13: 00007f7f421f3824 R14: 00000000001116b0 R15: 00007ffe09c60790
 </TASK>
rcu: rcu_preempt kthread starved for 10561 jiffies! g73157 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:27216 pid:17    tgid:17    ppid:2      flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5369 [inline]
 __schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
 __schedule_loop kernel/sched/core.c:6833 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6848
 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
 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
 </TASK>
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: 16 Comm: ksoftirqd/0 Not tainted 6.13.0-rc1-syzkaller-00005-gceb8bf2ceaa7 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lock_release+0x12/0x6f0 kernel/locking/lockdep.c:5857
Code: 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 b8 00 00 00 00 00 fc ff df 41 57 41 56 <41> 55 41 54 49 89 fc 55 53 48 81 ec 90 00 00 00 48 8d 5c 24 10 48
RSP: 0018:ffffc90000156af0 EFLAGS: 00000246
RAX: dffffc0000000000 RBX: 0000000000000001 RCX: ffffffff89dc68a6
RDX: ffff88801d288000 RSI: ffffffff89dc6620 RDI: ffffffff8e1bb500
RBP: ffff88802512b8c0 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000003 R12: ffff88802512b8c0
R13: 1ffff9200002ad65 R14: 0000000000000080 R15: ffffc90000156b88
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000559fcf29b900 CR3: 00000000128de000 CR4: 00000000003526f0
Call Trace:
 <NMI>
 </NMI>
 <TASK>
 rcu_lock_release include/linux/rcupdate.h:347 [inline]
 rcu_read_unlock include/linux/rcupdate.h:880 [inline]
 ip6_pol_route+0x295/0x1120 net/ipv6/route.c:2276
 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+0x12c/0x5b0 net/ipv6/ip6_input.c:77
 ip_sabotage_in+0x21b/0x290 net/bridge/br_netfilter_hooks.c:1021
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
 nf_hook.constprop.0+0x42e/0x750 include/linux/netfilter.h:269
 NF_HOOK include/linux/netfilter.h:312 [inline]
 ipv6_rcv+0xa4/0x680 net/ipv6/ip6_input.c:309
 __netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5672
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:5785
 netif_receive_skb_internal net/core/dev.c:5871 [inline]
 netif_receive_skb+0x13f/0x7b0 net/core/dev.c:5930
 NF_HOOK include/linux/netfilter.h:314 [inline]
 NF_HOOK include/linux/netfilter.h:308 [inline]
 br_pass_frame_up+0x346/0x490 net/bridge/br_input.c:70
 br_handle_frame_finish+0xdcf/0x1c80 net/bridge/br_input.c:221
 br_nf_hook_thresh+0x303/0x410 net/bridge/br_netfilter_hooks.c:1198
 br_nf_pre_routing_finish_ipv6+0x76a/0xfb0 net/bridge/br_netfilter_ipv6.c:154
 NF_HOOK include/linux/netfilter.h:314 [inline]
 br_nf_pre_routing_ipv6+0x3ce/0x8c0 net/bridge/br_netfilter_ipv6.c:184
 br_nf_pre_routing+0x860/0x15b0 net/bridge/br_netfilter_hooks.c:536
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
 br_handle_frame+0x9eb/0x1490 net/bridge/br_input.c:424
 __netif_receive_skb_core.constprop.0+0xa76/0x4470 net/core/dev.c:5566
 __netif_receive_skb_one_core+0xb1/0x1e0 net/core/dev.c:5670
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:5785
 process_backlog+0x443/0x15f0 net/core/dev.c:6117
 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6877
 napi_poll net/core/dev.c:6946 [inline]
 net_rx_action+0xa94/0x1010 net/core/dev.c:7068
 handle_softirqs+0x213/0x8f0 kernel/softirq.c:554
 run_ksoftirqd kernel/softirq.c:943 [inline]
 run_ksoftirqd+0x3a/0x60 kernel/softirq.c:935
 smpboot_thread_fn+0x661/0xa30 kernel/smpboot.c:164
 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
 </TASK>
net_ratelimit: 31506 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:fd:a9:c8:ad:1f, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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:f2:fd:a9:c8:ad:1f, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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:f2:fd:a9:c8:ad:1f, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 34292 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:f2:fd:a9:c8:ad:1f, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, 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:f2:fd:a9:c8:ad:1f, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)