syzbot

bridge0: received packet on veth0_to_bridge with own address as source address (addr:0e:5f:02:fc:74:44, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: 	Tasks blocked on level-0 rcu_node (CPUs 0-1): P5830/1:b..l
rcu: 	(detected by 0, t=10502 jiffies, g=76937, q=821 ncpus=1)
task:syz-executor    state:R  running task     stack:23504 pid:5830  tgid:5830  ppid:5828   task_flags:0x400140 flags:0x00000002
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0xf43/0x5890 kernel/sched/core.c:6764
 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7086
 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:unwind_done arch/x86/include/asm/unwind.h:50 [inline]
RIP: 0010:__unwind_start+0x46a/0x7f0 arch/x86/kernel/unwind_orc.c:757
Code: 00 00 00 00 00 fc ff df 49 c1 ed 03 49 89 c4 49 01 ed 49 01 ec eb 2a 4c 89 f7 e8 d1 da ff ff 4c 89 f0 48 c1 e8 03 0f b6 04 28 <84> c0 74 08 3c 03 0f 8e 14 02 00 00 41 8b 06 85 c0 0f 84 56 fe ff
RSP: 0018:ffffc90003f7f810 EFLAGS: 00000a06
RAX: 0000000000000000 RBX: ffffc90003f7f8f0 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffc90003f7f8f0 RDI: 0000000000000001
RBP: dffffc0000000000 R08: ffffc90003f7f894 R09: ffffffff90f469dc
R10: ffffc90003f7f860 R11: 0000000000006064 R12: fffff520007eff0e
R13: fffff520007eff0d R14: ffffc90003f7f860 R15: ffffc90003f7f868
 unwind_start arch/x86/include/asm/unwind.h:64 [inline]
 arch_stack_walk+0x74/0x100 arch/x86/kernel/stacktrace.c:24
 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_frozen_pages+0x6db/0xfb0 mm/page_alloc.c:2660
 __put_partials+0x14c/0x170 mm/slub.c:3153
 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_slab_alloc+0x69/0x90 mm/kasan/common.c:329
 kasan_slab_alloc include/linux/kasan.h:250 [inline]
 slab_post_alloc_hook mm/slub.c:4115 [inline]
 slab_alloc_node mm/slub.c:4164 [inline]
 kmem_cache_alloc_lru_noprof+0x226/0x3d0 mm/slub.c:4183
 shmem_alloc_inode+0x25/0x50 mm/shmem.c:5137
 alloc_inode+0x5d/0x230 fs/inode.c:336
 new_inode_pseudo fs/inode.c:1174 [inline]
 new_inode+0x22/0x210 fs/inode.c:1193
 __shmem_get_inode mm/shmem.c:3035 [inline]
 shmem_get_inode+0x194/0xf00 mm/shmem.c:3109
 shmem_mknod+0x1a8/0x450 mm/shmem.c:3831
 shmem_mkdir+0x31/0x60 mm/shmem.c:3897
 vfs_mkdir+0x57d/0x860 fs/namei.c:4313
 do_mkdirat+0x301/0x3a0 fs/namei.c:4336
 __do_sys_mkdirat fs/namei.c:4351 [inline]
 __se_sys_mkdirat fs/namei.c:4349 [inline]
 __x64_sys_mkdirat+0x83/0xb0 fs/namei.c:4349
 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: 0033:0x7f36aad8b657
RSP: 002b:00007ffe7439dc88 EFLAGS: 00000206 ORIG_RAX: 0000000000000102
RAX: ffffffffffffffda RBX: 00007ffe7439dce0 RCX: 00007f36aad8b657
RDX: 00000000000001ff RSI: 00007ffe7439dce0 RDI: 00000000ffffff9c
RBP: 00007ffe7439dccc R08: 0000000000000005 R09: 00007ffe7439da25
R10: 0000000000000000 R11: 0000000000000206 R12: 00000000000003d1
R13: 00000000000927c0 R14: 000000000008bda3 R15: 00007ffe7439dd20
 </TASK>
rcu: rcu_preempt kthread starved for 287 jiffies! g76937 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:27456 pid:17    tgid:17    ppid:2      task_flags:0x208040 flags:0x00004000
Call Trace:
 <TASK>
 context_switch kernel/sched/core.c:5377 [inline]
 __schedule+0xf43/0x5890 kernel/sched/core.c:6764
 __schedule_loop kernel/sched/core.c:6841 [inline]
 schedule+0xe7/0x350 kernel/sched/core.c:6856
 schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
 rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2024
 rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2226
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
rcu: Stack dump where RCU GP kthread last ran:
CPU: 0 UID: 0 PID: 3400 Comm: kworker/R-bat_e Tainted: G     U             6.14.0-rc2-syzkaller-00228-g04f41cbf03ec #0
Tainted: [U]=USER
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: bat_events batadv_tt_purge
RIP: 0010:__local_bh_enable_ip+0xac/0x120 kernel/softirq.c:396
Code: 1d e1 be 87 7e 65 8b 05 da be 87 7e a9 00 ff ff 00 74 4d bf 01 00 00 00 e8 61 d9 0b 00 e8 0c 70 45 00 fb 65 8b 05 bc be 87 7e <85> c0 74 52 5b 5d c3 cc cc cc cc 65 8b 05 ae 6c 86 7e 85 c0 75 9e
RSP: 0018:ffffc90000006d38 EFLAGS: 00000202
RAX: 0000000080000101 RBX: 00000000fffffe01 RCX: 1ffffffff2de4a9b
RDX: 0000000000000000 RSI: ffffffff8b6ced20 RDI: ffffffff8bd34380
RBP: ffffffff8a1912b0 R08: 0000000000000001 R09: fffffbfff2dd77b9
R10: ffffffff96ebbdcf R11: 0000000000000004 R12: 1ffff92000000dc9
R13: 0000000000000001 R14: ffff888060a181e0 R15: ffff888060a18290
FS:  0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcb90c00218 CR3: 0000000033f48000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <IRQ>
 local_bh_enable include/linux/bottom_half.h:33 [inline]
 ip6t_do_table+0xd2d/0x1d40 net/ipv6/netfilter/ip6_tables.c:375
 ip6table_mangle_hook+0xc4/0x770 net/ipv6/netfilter/ip6table_mangle.c:73
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
 nf_hook+0x486/0x810 include/linux/netfilter.h:269
 NF_HOOK include/linux/netfilter.h:312 [inline]
 br_nf_forward_ip.part.0+0x5e5/0x820 net/bridge/br_netfilter_hooks.c:719
 br_nf_forward_ip net/bridge/br_netfilter_hooks.c:679 [inline]
 br_nf_forward+0xf11/0x1bd0 net/bridge/br_netfilter_hooks.c:776
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
 nf_hook+0x474/0x7d0 include/linux/netfilter.h:269
 NF_HOOK include/linux/netfilter.h:312 [inline]
 __br_forward+0x1be/0x5b0 net/bridge/br_forward.c:115
 deliver_clone+0x5b/0xa0 net/bridge/br_forward.c:131
 br_flood+0x491/0x5e0 net/bridge/br_forward.c:249
 br_handle_frame_finish+0xea2/0x1c90 net/bridge/br_input.c:220
 br_nf_hook_thresh+0x303/0x410 net/bridge/br_netfilter_hooks.c:1170
 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:508
 nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
 nf_hook_bridge_pre net/bridge/br_input.c:282 [inline]
 br_handle_frame+0xad7/0x14a0 net/bridge/br_input.c:433
 __netif_receive_skb_core.constprop.0+0xa20/0x4330 net/core/dev.c:5722
 __netif_receive_skb_one_core+0xb1/0x1e0 net/core/dev.c:5826
 __netif_receive_skb+0x1d/0x160 net/core/dev.c:5941
 process_backlog+0x443/0x15f0 net/core/dev.c:6289
 __napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:7106
 napi_poll net/core/dev.c:7175 [inline]
 net_rx_action+0xa94/0x1010 net/core/dev.c:7297
 handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
 do_softirq kernel/softirq.c:462 [inline]
 do_softirq+0xb2/0xf0 kernel/softirq.c:449
 </IRQ>
 <TASK>
 __local_bh_enable_ip+0x100/0x120 kernel/softirq.c:389
 spin_unlock_bh include/linux/spinlock.h:396 [inline]
 batadv_tt_local_purge+0x21c/0x3c0 net/batman-adv/translation-table.c:1315
 batadv_tt_purge+0x86/0xb90 net/batman-adv/translation-table.c:3509
 process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3236
 process_scheduled_works kernel/workqueue.c:3317 [inline]
 rescuer_thread+0x616/0xe80 kernel/workqueue.c:3494
 kthread+0x3af/0x750 kernel/kthread.c:464
 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
 </TASK>
net_ratelimit: 36870 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:0e:5f:02:fc:74:44, 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:0e:5f:02:fc:74:44, 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:0e:5f:02:fc:74:44, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
net_ratelimit: 53946 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:0e:5f:02:fc:74:44, 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:0e:5f:02:fc:74:44, 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:0e:5f:02:fc:74:44, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)