bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5205/1:b..l rcu: (detected by 0, t=10503 jiffies, g=100357, q=732 ncpus=2) task:udevd state:R running task stack:24624 pid:5205 tgid:5205 ppid:1 flags:0x00000002 Call Trace: 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:stack_trace_consume_entry+0x93/0x170 kernel/stacktrace.c:89 Code: 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 0f b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 98 00 00 00 <8b> 43 0c 85 c0 75 57 48 b8 00 00 00 00 00 fc ff df 48 89 da 48 c1 RSP: 0018:ffffc900033e78b0 EFLAGS: 00000246 RAX: 0000000000000007 RBX: ffffc900033e7990 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff81fc07ae RDI: ffffc900033e799c RBP: 0000000000000002 R08: ffffc900033e7904 R09: ffffffff90badaae R10: ffffc900033e78d0 R11: 000000000000f12e R12: ffffffff81851ec0 R13: ffffc900033e7990 R14: 0000000000000000 R15: ffff88805c249e00 arch_stack_walk+0x86/0x100 arch/x86/kernel/stacktrace.c:27 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_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:4104 [inline] slab_alloc_node mm/slub.c:4153 [inline] kmem_cache_alloc_noprof+0x1c8/0x3b0 mm/slub.c:4160 getname_flags.part.0+0x4c/0x550 fs/namei.c:139 getname_flags include/linux/audit.h:322 [inline] getname+0x8d/0xe0 fs/namei.c:223 getname_maybe_null include/linux/fs.h:2796 [inline] vfs_fstatat+0xdf/0xf0 fs/stat.c:361 __do_sys_newfstatat+0xa2/0x130 fs/stat.c:530 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: 0033:0x7f494b9165f4 RSP: 002b:00007ffdb210e768 EFLAGS: 00000246 ORIG_RAX: 0000000000000106 RAX: ffffffffffffffda RBX: 00005618a07576c0 RCX: 00007f494b9165f4 RDX: 00007ffdb210e778 RSI: 00005618a07457ed RDI: 00000000ffffff9c RBP: 00005618c8b77448 R08: 000000002e0e6f6d R09: 00007f494bead000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000000 R15: 00005618a074bdca rcu: rcu_preempt kthread starved for 4992 jiffies! g100357 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:27072 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: 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 rcu: Stack dump where RCU GP kthread last ran: CPU: 0 UID: 0 PID: 1109 Comm: kworker/u8:6 Not tainted 6.13.0-rc1-syzkaller-00378-g62b5a46999c7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:__sanitizer_cov_trace_const_cmp4+0x0/0x20 kernel/kcov.c:313 Code: 0c 24 0f b7 d6 0f b7 f7 bf 03 00 00 00 e9 58 fe ff ff 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 0c 24 89 f2 89 fe bf 05 00 00 00 e9 2a fe ff ff RSP: 0018:ffffc900000068c8 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff89ced1fc RDX: 1ffff1100b6ab418 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900000069d8 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000b8f R12: ffff888033a7e8cf R13: ffff888033a7e8b8 R14: 1ffff92000000d29 R15: ffff88805c9b1000 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f3d4ff0d178 CR3: 000000000db7e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __in6_dev_get include/net/addrconf.h:330 [inline] ip6_ignore_linkdown include/net/addrconf.h:421 [inline] find_match+0x15b/0x15d0 net/ipv6/route.c:747 __find_rr_leaf+0x141/0xe00 net/ipv6/route.c:835 find_rr_leaf net/ipv6/route.c:856 [inline] rt6_select net/ipv6/route.c:900 [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+0x60b/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/0x14a0 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:6883 napi_poll net/core/dev.c:6952 [inline] net_rx_action+0xa94/0x1010 net/core/dev.c:7074 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] cfg80211_inform_single_bss_data+0x974/0x1e40 net/wireless/scan.c:2350 cfg80211_inform_bss_data+0x254/0x3e40 net/wireless/scan.c:3189 cfg80211_inform_bss_frame_data+0x252/0x8a0 net/wireless/scan.c:3284 ieee80211_bss_info_update+0x311/0xab0 net/mac80211/scan.c:226 ieee80211_rx_bss_info net/mac80211/ibss.c:1101 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1580 [inline] ieee80211_ibss_rx_queued_mgmt+0x1956/0x3040 net/mac80211/ibss.c:1607 ieee80211_iface_process_skb net/mac80211/iface.c:1616 [inline] ieee80211_iface_work+0xc0b/0xf00 net/mac80211/iface.c:1670 cfg80211_wiphy_work+0x3de/0x560 net/wireless/core.c:440 process_one_work+0x958/0x1b30 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: 15606 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) net_ratelimit: 24510 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:5b:38:5c:78:21, vlan:0)