bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P916/1:b..l P6381/1:b..l P6373/1:b..l P5815/1:b..l P5493/1:b..l rcu: (detected by 1, t=10503 jiffies, g=13577, q=1098 ncpus=2) task:dhcpcd state:R running task stack:22616 pid:5493 tgid:5493 ppid:5492 task_flags:0x400140 flags:0x00080001 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6929 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256 irqentry_exit+0x36/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:lock_release+0x183/0x2f0 kernel/locking/lockdep.c:5893 Code: 0f c1 05 28 12 09 12 83 f8 01 0f 85 1d 01 00 00 9c 58 f6 c4 02 0f 85 08 01 00 00 41 f7 c5 00 02 00 00 74 01 fb 48 8b 44 24 10 <65> 48 2b 05 3d d0 08 12 0f 85 58 01 00 00 48 83 c4 18 5b 41 5c 41 RSP: 0018:ffffc90003017468 EFLAGS: 00000206 RAX: 57ac91a7d481b400 RBX: ffffffff8e3c45e0 RCX: ffffc90003017474 RDX: 0000000000000001 RSI: ffffffff8da02ac4 RDI: ffffffff8bf075c0 RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000011595 R12: ffffffff816bc914 R13: 0000000000000206 R14: ffff88802e123c80 R15: 0000000000000002 rcu_lock_release include/linux/rcupdate.h:341 [inline] rcu_read_unlock include/linux/rcupdate.h:897 [inline] class_rcu_destructor include/linux/rcupdate.h:1195 [inline] unwind_next_frame+0x3f9/0x20a0 arch/x86/kernel/unwind_orc.c:479 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:311 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:408 kasan_kmalloc include/linux/kasan.h:262 [inline] __do_kmalloc_node mm/slub.c:5642 [inline] __kmalloc_node_track_caller_noprof+0x345/0x8a0 mm/slub.c:5751 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:601 __alloc_skb+0x166/0x380 net/core/skbuff.c:670 alloc_skb include/linux/skbuff.h:1383 [inline] alloc_skb_with_frags+0xe0/0x860 net/core/skbuff.c:6671 sock_alloc_send_pskb+0x7f9/0x980 net/core/sock.c:2965 unix_dgram_sendmsg+0x3e9/0x17f0 net/unix/af_unix.c:2153 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] __sys_sendto+0x4a3/0x520 net/socket.c:2244 __do_sys_sendto net/socket.c:2251 [inline] __se_sys_sendto net/socket.c:2247 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2247 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f5c2da5f407 RSP: 002b:00007fffb7ddf800 EFLAGS: 00000202 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f5c2d9d5740 RCX: 00007f5c2da5f407 RDX: 000000000000005c RSI: 00007fffb7ddf940 RDI: 0000000000000003 RBP: 00007fffb7ddfd70 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000004000 R11: 0000000000000202 R12: 00007fffb7de01c0 R13: 00007fffb7ddf940 R14: 000000000000003a R15: 00007fffb7ddf940 task:syz-executor state:R running task stack:23336 pid:5815 tgid:5815 ppid:5814 task_flags:0x400100 flags:0x00080001 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6929 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256 irqentry_exit+0x36/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:unwind_next_frame+0x5a3/0x20a0 arch/x86/kernel/unwind_orc.c:512 Code: 0f 9e c2 84 c0 0f 95 c0 84 c2 0f 85 b1 14 00 00 4c 89 f2 44 0f b6 79 05 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 <4c> 89 f2 41 c0 ef 03 83 e2 07 41 83 e7 01 38 d0 7f 08 84 c0 0f 85 RSP: 0000:ffffc90003f5f2b0 EFLAGS: 00000a07 RAX: 0000000000000000 RBX: 0000000000000001 RCX: ffffffff912740fe RDX: 1ffff920007ebe6a RSI: 0000000000000001 RDI: ffffffff909ebce0 RBP: ffffc90003f5f368 R08: ffffffff91274102 R09: 0000000000000000 R10: 0000000000000000 R11: 00000000000145a6 R12: ffffc90003f5f370 R13: ffffc90003f5f320 R14: ffffc90003f5f355 R15: 0000000000000002 arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122 save_stack+0x160/0x1f0 mm/page_owner.c:156 __reset_page_owner+0x84/0x1a0 mm/page_owner.c:311 reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1394 [inline] __free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906 discard_slab mm/slub.c:3326 [inline] __put_partials+0x130/0x170 mm/slub.c:3872 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x4d/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:352 kasan_slab_alloc include/linux/kasan.h:252 [inline] slab_post_alloc_hook mm/slub.c:4970 [inline] slab_alloc_node mm/slub.c:5280 [inline] kmem_cache_alloc_noprof+0x250/0x6e0 mm/slub.c:5287 start_this_handle+0xa65/0x1410 fs/jbd2/transaction.c:351 jbd2__journal_start+0x394/0x6a0 fs/jbd2/transaction.c:501 __ext4_journal_start_sb+0x195/0x690 fs/ext4/ext4_jbd2.c:115 __ext4_journal_start fs/ext4/ext4_jbd2.h:242 [inline] ext4_dirty_inode+0xa1/0x130 fs/ext4/inode.c:6514 __mark_inode_dirty+0x1ee/0xe40 fs/fs-writeback.c:2566 generic_update_time+0xcf/0xf0 fs/inode.c:2105 inode_update_time fs/inode.c:2118 [inline] __file_update_time fs/inode.c:2345 [inline] file_update_time+0x17d/0x1c0 fs/inode.c:2375 ext4_page_mkwrite+0x33d/0x1880 fs/ext4/inode.c:6683 do_page_mkwrite+0x174/0x380 mm/memory.c:3488 wp_page_shared mm/memory.c:3889 [inline] do_wp_page+0xb5d/0x52b0 mm/memory.c:4108 handle_pte_fault mm/memory.c:6193 [inline] __handle_mm_fault+0x1ae3/0x2aa0 mm/memory.c:6318 handle_mm_fault+0x589/0xd10 mm/memory.c:6487 do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1336 handle_page_fault arch/x86/mm/fault.c:1476 [inline] exc_page_fault+0x64/0xc0 arch/x86/mm/fault.c:1532 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7fa519a68f55 RSP: 002b:00007ffc103ca510 EFLAGS: 00010206 RAX: 00007fa516ddc54c RBX: 00007ffc103ca610 RCX: 0000000000000000 RDX: 00007fa516ddc548 RSI: 0000000000000008 RDI: 00007ffc103ca610 RBP: 00000000000003e6 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffc103ca5f0 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000023ab4 R14: fffffffffffdc54c R15: 0000000000023ab4 task:syz.0.99 state:R running task stack:24200 pid:6373 tgid:6373 ppid:6371 task_flags:0x40064c flags:0x00080003 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6929 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:7113 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 __raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186 spin_unlock include/linux/spinlock.h:391 [inline] zap_pte_range mm/memory.c:1884 [inline] zap_pmd_range mm/memory.c:1946 [inline] zap_pud_range mm/memory.c:1975 [inline] zap_p4d_range mm/memory.c:1996 [inline] unmap_page_range+0xf71/0x41b0 mm/memory.c:2017 unmap_single_vma.constprop.0+0x153/0x240 mm/memory.c:2060 unmap_vmas+0x218/0x470 mm/memory.c:2104 exit_mmap+0x1b2/0xb90 mm/mmap.c:1280 __mmput+0x12a/0x410 kernel/fork.c:1133 mmput+0x62/0x70 kernel/fork.c:1156 exit_mm kernel/exit.c:582 [inline] do_exit+0x7c7/0x2bf0 kernel/exit.c:954 do_group_exit+0xd3/0x2a0 kernel/exit.c:1107 get_signal+0x2671/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:40 [inline] exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] irqentry_exit_to_user_mode+0x176/0x310 kernel/entry/common.c:73 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7fc90778f6d1 RSP: 002b:0000000000000005 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007fc9079e5fa0 RCX: 00007fc90778f6c9 RDX: 9999999999999999 RSI: 0000000000000005 RDI: 0000000000000052 RBP: 00007fc907811f91 R08: 0000000000000006 R09: 0000000000000000 R10: ffffffff81000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fc9079e6038 R14: 00007fc9079e5fa0 R15: 00007ffca212b0e8 task:syz.3.98 state:R running task stack:27656 pid:6381 tgid:6364 ppid:5825 task_flags:0x40044c flags:0x00080003 Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6929 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:7113 preempt_schedule_thunk+0x16/0x30 arch/x86/entry/thunk.S:12 __local_bh_enable_ip+0x107/0x120 kernel/softirq.c:457 spin_unlock_bh include/linux/spinlock.h:396 [inline] nl80211_netlink_notify net/wireless/nl80211.c:21520 [inline] nl80211_netlink_notify+0x61c/0x970 net/wireless/nl80211.c:21471 notifier_call_chain+0xbc/0x410 kernel/notifier.c:85 blocking_notifier_call_chain kernel/notifier.c:380 [inline] blocking_notifier_call_chain+0x69/0xa0 kernel/notifier.c:368 netlink_release+0x16cf/0x2080 net/netlink/af_netlink.c:763 __sock_release+0xb3/0x270 net/socket.c:662 sock_close+0x1c/0x30 net/socket.c:1455 __fput+0x402/0xb70 fs/file_table.c:468 task_work_run+0x150/0x240 kernel/task_work.c:227 exit_task_work include/linux/task_work.h:40 [inline] do_exit+0x86f/0x2bf0 kernel/exit.c:966 do_group_exit+0xd3/0x2a0 kernel/exit.c:1107 get_signal+0x2671/0x26d0 kernel/signal.c:3034 arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop+0x85/0x130 kernel/entry/common.c:40 exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline] do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fcd4b18f6c9 RSP: 002b:00007fcd487f00e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: fffffffffffffe00 RBX: 00007fcd4b3e6458 RCX: 00007fcd4b18f6c9 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007fcd4b3e6458 RBP: 00007fcd4b3e6450 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fcd4b3e64e8 R14: 00007ffdb09ada70 R15: 00007ffdb09adb58 task:kworker/1:2 state:R running task stack:26392 pid:916 tgid:916 ppid:2 task_flags:0x4208060 flags:0x00080000 Workqueue: events_power_efficient gc_worker Call Trace: context_switch kernel/sched/core.c:5325 [inline] __schedule+0x1190/0x5de0 kernel/sched/core.c:6929 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256 irqentry_exit+0x36/0x90 kernel/entry/common.c:211 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:trace_lock_acquire include/trace/events/lock.h:24 [inline] RIP: 0010:lock_acquire+0x4e/0x350 kernel/locking/lockdep.c:5831 Code: 48 8b 05 ed ca 08 12 48 89 44 24 30 31 c0 66 90 65 8b 05 09 cb 08 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 92 dc e9 0e <0f> 82 74 02 00 00 8b 35 ea 0c ea 0e 85 f6 0f 85 8d 00 00 00 48 8b RSP: 0018:ffffc90003527ad0 EFLAGS: 00000297 RAX: 0000000000000001 RBX: ffffffff8e3c45e0 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e3c45e0 RBP: 0000000000000002 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000040000 R11: 0000000000000001 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 rcu_lock_acquire include/linux/rcupdate.h:331 [inline] rcu_read_lock include/linux/rcupdate.h:867 [inline] gc_worker+0x241/0x16e0 net/netfilter/nf_conntrack_core.c:1546 process_one_work+0x9cf/0x1b70 kernel/workqueue.c:3263 process_scheduled_works kernel/workqueue.c:3346 [inline] worker_thread+0x6c8/0xf10 kernel/workqueue.c:3427 kthread+0x3c5/0x780 kernel/kthread.c:463 ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 net_ratelimit: 16816 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:a2:f3:07:f7:1d:a7, vlan:0)