bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5837/1:b..l rcu: (detected by 0, t=10502 jiffies, g=52733, q=193 ncpus=2) task:syz-executor state:R running task stack:20544 pid:5837 tgid:5837 ppid:5827 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078 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:__reset_page_owner+0x5e/0x430 mm/page_owner.c:295 Code: 84 93 03 00 00 49 89 c7 49 bd 00 00 00 00 00 fc ff df 48 8b 05 c3 8f 97 0c 49 8d 5c 07 08 48 89 d8 48 c1 e8 03 42 0f b6 04 28 <84> c0 0f 85 8d 03 00 00 8b 03 89 44 24 20 bf 00 28 00 00 e8 ca 03 RSP: 0018:ffffc9000391f6c0 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: ffff88801c05f290 RCX: ffff88807503bc00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffea000084c200 R08: ffffffff8211469a R09: 1ffffffff2856710 R10: dffffc0000000000 R11: fffffbfff2856711 R12: ffffea000084c208 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88801c05f280 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1127 [inline] free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2657 discard_slab mm/slub.c:2673 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3142 put_cpu_partial+0x17c/0x250 mm/slub.c:3217 __slab_free+0x290/0x380 mm/slub.c:4468 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x23/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4283 [inline] __kmalloc_noprof+0x285/0x4c0 mm/slub.c:4295 kmalloc_noprof include/linux/slab.h:905 [inline] tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x2b7/0x740 security/tomoyo/file.c:822 tomoyo_path_rmdir+0xd0/0x110 security/tomoyo/tomoyo.c:195 security_path_rmdir+0x169/0x360 security/security.c:1944 do_rmdir+0x2e7/0x580 fs/namei.c:4450 __do_sys_unlinkat fs/namei.c:4629 [inline] __se_sys_unlinkat fs/namei.c:4623 [inline] __x64_sys_unlinkat+0xde/0xf0 fs/namei.c:4623 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: 0033:0x7fea9e7852f7 RSP: 002b:00007ffd5be31048 EFLAGS: 00000207 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 0000000000000065 RCX: 00007fea9e7852f7 RDX: 0000000000000200 RSI: 00007ffd5be32180 RDI: 00000000ffffff9c RBP: 00007fea9e80180c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000207 R12: 00007ffd5be32180 R13: 00007fea9e80180c R14: 00007ffd5be321c0 R15: 000000000000048c rcu: rcu_preempt kthread starved for 10146 jiffies! g52733 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1 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:25784 pid:17 tgid:17 ppid:2 flags:0x00004000 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 __schedule_loop kernel/sched/core.c:6833 [inline] schedule+0x14b/0x320 kernel/sched/core.c:6848 schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99 rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045 rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/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 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 UID: 0 PID: 10809 Comm: kworker/u8:12 Not tainted 6.13.0-rc2-syzkaller-00390-g9bc5c9515b48 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:lockdep_enabled kernel/locking/lockdep.c:122 [inline] RIP: 0010:lock_acquire+0x144/0x550 kernel/locking/lockdep.c:5825 Code: 8b 05 b0 f0 87 7e 85 c0 0f 85 8f 01 00 00 65 48 8b 1c 25 00 d6 03 00 48 81 c3 dc 0a 00 00 48 89 d8 48 c1 e8 03 42 0f b6 04 28 <84> c0 0f 85 e5 02 00 00 83 3b 00 0f 85 62 01 00 00 4c 8d bc 24 80 RSP: 0018:ffffc90000a17e40 EFLAGS: 00000a03 RAX: 0000000000000000 RBX: ffff888035a60adc RCX: ffffffff817a9984 RDX: 0000000000000000 RSI: ffffffff8c5f9760 RDI: ffffffff8c5f9720 RBP: ffffc90000a17f88 R08: ffffffff901a09b7 R09: 1ffffffff2034136 R10: dffffc0000000000 R11: fffffbfff2034137 R12: 1ffff92000142fd0 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff8880a6744b40 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f0a6e547ab8 CR3: 0000000033a60000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: rcu_lock_acquire include/linux/rcupdate.h:337 [inline] rcu_read_lock include/linux/rcupdate.h:849 [inline] nf_hook include/linux/netfilter.h:238 [inline] NF_HOOK+0x11d/0x400 include/linux/netfilter.h:312 br_handle_frame_finish+0x18ed/0x1fe0 br_nf_hook_thresh+0x472/0x590 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+0x9fd/0x1530 net/bridge/br_input.c:424 __netif_receive_skb_core+0x14eb/0x4690 net/core/dev.c:5566 __netif_receive_skb_one_core net/core/dev.c:5670 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5785 process_backlog+0x662/0x15b0 net/core/dev.c:6117 __napi_poll+0xcb/0x490 net/core/dev.c:6883 napi_poll net/core/dev.c:6952 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:7074 handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:561 do_softirq+0x11b/0x1e0 kernel/softirq.c:462 __local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:389 ieee80211_rx_bss_info net/mac80211/ibss.c:1173 [inline] ieee80211_rx_mgmt_probe_beacon net/mac80211/ibss.c:1580 [inline] ieee80211_ibss_rx_queued_mgmt+0x1b1b/0x2d70 net/mac80211/ibss.c:1607 ieee80211_iface_process_skb net/mac80211/iface.c:1613 [inline] ieee80211_iface_work+0x8a5/0xf20 net/mac80211/iface.c:1667 cfg80211_wiphy_work+0x2db/0x480 net/wireless/core.c:440 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 net_ratelimit: 11497 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:e0:a3:8c:85:db, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:e0:a3:8c:85:db, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:e0:a3:8c:85:db, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:e0:a3:8c:85:db, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) net_ratelimit: 13172 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:e0:a3:8c:85:db, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:e0:a3:8c:85:db, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:e0:a3:8c:85:db, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:2b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:9e:e0:a3:8c:85:db, vlan:0)