bridge0: received packet on veth0_to_bridge with own address as source address (addr:2e:2a:60:48:91:04, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6535/1:b..l P6526/1:b..l P5186/1:b..l rcu: (detected by 1, t=10503 jiffies, g=10873, q=889 ncpus=2) task:syslogd state:R running task stack:22784 pid:5186 tgid:5186 ppid:1 flags:0x00004002 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 unwind_next_frame+0x18f8/0x22d0 arch/x86/kernel/unwind_orc.c:672 arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 save_stack+0xfb/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x76/0x430 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+0xd3f/0x1010 mm/page_alloc.c:2659 discard_slab mm/slub.c:2688 [inline] __put_partials+0x160/0x1c0 mm/slub.c:3157 put_cpu_partial+0x17c/0x250 mm/slub.c:3232 __slab_free+0x290/0x380 mm/slub.c:4483 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:4298 [inline] __kmalloc_noprof+0x285/0x4c0 mm/slub.c:4310 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_check_open_permission+0x258/0x4f0 security/tomoyo/file.c:771 security_file_open+0xac/0x250 security/security.c:3105 do_dentry_open+0x328/0x1b70 fs/open.c:928 vfs_open+0x3e/0x330 fs/open.c:1075 do_open fs/namei.c:3828 [inline] path_openat+0x2c84/0x3590 fs/namei.c:3987 do_filp_open+0x27f/0x4e0 fs/namei.c:4014 do_sys_openat2+0x13e/0x1d0 fs/open.c:1402 do_sys_open fs/open.c:1417 [inline] __do_sys_openat fs/open.c:1433 [inline] __se_sys_openat fs/open.c:1428 [inline] __x64_sys_openat+0x247/0x2a0 fs/open.c:1428 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: 0033:0x7f65d4a4d9a4 RSP: 002b:00007ffc5023a1f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000556b22c1f910 RCX: 00007f65d4a4d9a4 RDX: 0000000000000d41 RSI: 00007f65d4bec443 RDI: 00000000ffffff9c RBP: 00007f65d4bec443 R08: 0000000000000001 R09: 0000000000000000 R10: 00000000000001b6 R11: 0000000000000246 R12: 0000000000000d41 R13: 00000000678ab2da R14: 0000000000000004 R15: 0000556b22c1fa60 task:syz.0.163 state:R running task stack:24120 pid:6526 tgid:6526 ppid:5844 flags:0x00004006 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:set_current_in_page_owner mm/page_owner.c:65 [inline] RIP: 0010:save_stack+0xd8/0x1f0 mm/page_owner.c:155 Code: 44 0f b7 33 44 89 f6 81 e6 00 08 00 00 31 ff e8 3e 3a 90 ff 44 89 f0 25 00 08 00 00 75 55 41 81 ce 00 08 00 00 43 0f b6 04 27 <84> c0 0f 85 c7 00 00 00 66 44 89 33 4c 8d 74 24 40 4c 89 f7 be 10 RSP: 0018:ffffc9000cea6de0 EFLAGS: 00000202 RAX: 0000000000000000 RBX: ffff888033a1df80 RCX: 0000000000000000 RDX: ffff888033a1da00 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc9000cea6f20 R08: ffffffff820f4bd2 R09: 0000000000000000 R10: ffffc9000cea6e20 R11: fffff520019d4dd4 R12: dffffc0000000000 R13: 1ffff920019d4dc0 R14: 0000000000000801 R15: 1ffff11006743bf0 __reset_page_owner+0x76/0x430 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+0xd3f/0x1010 mm/page_alloc.c:2659 __slab_free+0x2c2/0x380 mm/slub.c:4524 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_slab_alloc+0x23/0x80 mm/kasan/common.c:329 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175 mt_alloc_one lib/maple_tree.c:176 [inline] mas_alloc_nodes+0x25b/0x7e0 lib/maple_tree.c:1253 mas_node_count_gfp lib/maple_tree.c:1335 [inline] mas_preallocate+0x575/0x8d0 lib/maple_tree.c:5546 vma_iter_prealloc mm/vma.h:349 [inline] __split_vma+0x302/0xc50 mm/vma.c:447 vms_gather_munmap_vmas+0x4c1/0x1600 mm/vma.c:1288 __mmap_prepare mm/vma.c:2241 [inline] __mmap_region+0x7c4/0x2d30 mm/vma.c:2443 mmap_region+0x226/0x2c0 mm/mmap.c:1352 do_mmap+0x97a/0x10d0 mm/mmap.c:500 vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:575 ksys_mmap_pgoff+0x4eb/0x720 mm/mmap.c:546 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: 0033:0x7f40d6d85d63 RSP: 002b:00007ffd8403d2a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 RAX: ffffffffffffffda RBX: 00007f40d6f762d8 RCX: 00007f40d6d85d63 RDX: 0000000000000003 RSI: 0000000000400000 RDI: 00007f40d47f6000 RBP: 00007f40d6f76240 R08: 00000000000000db R09: 0000000000000000 R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000003 R13: 00007f40d6f76240 R14: 0000000000000003 R15: 0000000000000b4b task:syz.0.163 state:R running task stack:25048 pid:6535 tgid:6526 ppid:5844 flags:0x00004006 Call Trace: context_switch kernel/sched/core.c:5369 [inline] __schedule+0x1850/0x4c30 kernel/sched/core.c:6756 preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935 preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959 preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12 __local_bh_enable_ip+0x179/0x200 kernel/softirq.c:396 nl80211_netlink_notify+0x452/0x840 net/wireless/nl80211.c:20136 notifier_call_chain+0x1a5/0x3f0 kernel/notifier.c:85 blocking_notifier_call_chain+0x69/0x90 kernel/notifier.c:380 netlink_release+0x11a6/0x1bf0 net/netlink/af_netlink.c:764 __sock_release net/socket.c:640 [inline] sock_close+0xbc/0x240 net/socket.c:1408 __fput+0x23c/0xa50 fs/file_table.c:450 __do_sys_close fs/open.c:1554 [inline] __se_sys_close fs/open.c:1539 [inline] __x64_sys_close+0x7f/0x110 fs/open.c:1539 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: 0033:0x7f40d6d8498a RSP: 002b:00007f40d7b41f90 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: ffffffffffffffda RBX: 000000000000001d RCX: 00007f40d6d8498a RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000005 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f40d6f76080 R15: 00007ffd8403d1d8 rcu: rcu_preempt kthread starved for 10614 jiffies! g10873 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:26264 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 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 UID: 0 PID: 35 Comm: kworker/u8:2 Not tainted 6.13.0-rc7-syzkaller-00106-g5d6a361dc01d #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 Workqueue: events_unbound cfg80211_wiphy_work RIP: 0010:unwind_next_frame+0xb09/0x22d0 arch/x86/kernel/unwind_orc.c:581 Code: 49 8d 6f 01 48 8b 44 24 70 42 0f b6 04 20 84 c0 0f 85 39 11 00 00 48 89 eb 48 c1 eb 03 42 0f b6 04 23 84 c0 0f 85 45 11 00 00 <41> 0f b6 77 01 83 e6 07 83 fe 04 0f 84 e6 01 00 00 83 fe 03 0f 84 RSP: 0018:ffffc90000006ad0 EFLAGS: 00000246 RAX: 0000000000000000 RBX: 1ffffffff22730b5 RCX: ffffffff9090c7a8 RDX: ffffffff913985a8 RSI: ffffffff913985a8 RDI: 0000000000000001 RBP: ffffffff913985ad R08: 0000000000000009 R09: ffffc90000006c90 R10: ffffc90000006bf0 R11: ffffffff818b4af0 R12: dffffc0000000000 R13: ffffc90000006ba0 R14: ffffc90000006bd8 R15: ffffffff913985ac FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7d596fc0d0 CR3: 000000007b05c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122 kasan_save_stack mm/kasan/common.c:47 [inline] kasan_save_track+0x3f/0x80 mm/kasan/common.c:68 unpoison_slab_object mm/kasan/common.c:319 [inline] __kasan_slab_alloc+0x66/0x80 mm/kasan/common.c:345 kasan_slab_alloc include/linux/kasan.h:250 [inline] slab_post_alloc_hook mm/slub.c:4119 [inline] slab_alloc_node mm/slub.c:4168 [inline] kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175 skb_clone+0x20c/0x390 net/core/skbuff.c:2084 deliver_clone net/bridge/br_forward.c:125 [inline] br_flood+0x3dc/0x660 net/bridge/br_forward.c:245 br_handle_frame_finish+0x18ba/0x1fe0 net/bridge/br_input.c:215 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:5598 __netif_receive_skb_one_core net/core/dev.c:5702 [inline] __netif_receive_skb+0x12f/0x650 net/core/dev.c:5817 process_backlog+0x662/0x15b0 net/core/dev.c:6149 __napi_poll+0xcb/0x490 net/core/dev.c:6902 napi_poll net/core/dev.c:6971 [inline] net_rx_action+0x89b/0x1240 net/core/dev.c:7093 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:3236 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317 worker_thread+0x870/0xd30 kernel/workqueue.c:3398 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: 19070 callbacks suppressed 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:2e:2a:60:48:91:04, 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:2e:2a:60:48:91:04, 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:2e:2a:60:48:91:04, 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:2e:2a:60:48:91:04, 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:2a:60:48:91:04, vlan:0) net_ratelimit: 22402 callbacks suppressed 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:2e:2a:60:48:91:04, 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:2e:2a:60:48:91:04, 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:2e:2a:60:48:91:04, 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:2e:2a:60:48:91:04, 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:2a:60:48:91:04, vlan:0)