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): P5485/1:b..l P5821/1:b..l rcu: (detected by 0, t=10502 jiffies, g=63021, q=592 ncpus=2) task:syz-executor state:R running task stack:22720 pid:5821 tgid:5821 ppid:1 task_flags:0x40054c flags:0x00004004 Call Trace: context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6944 preempt_schedule_thunk+0x1a/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:1772 [inline] zap_pmd_range mm/memory.c:1834 [inline] zap_pud_range mm/memory.c:1863 [inline] zap_p4d_range mm/memory.c:1884 [inline] unmap_page_range+0xee3/0x4390 mm/memory.c:1905 unmap_single_vma+0x194/0x2b0 mm/memory.c:1951 unmap_vmas+0x22f/0x490 mm/memory.c:1995 exit_mmap+0x1c1/0xba0 mm/mmap.c:1284 __mmput+0x12a/0x410 kernel/fork.c:1356 mmput+0x62/0x70 kernel/fork.c:1378 exit_mm kernel/exit.c:570 [inline] do_exit+0x9ba/0x2d70 kernel/exit.c:925 do_group_exit+0xd3/0x2a0 kernel/exit.c:1087 get_signal+0x24ed/0x26c0 kernel/signal.c:3036 arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xda/0x250 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f50ec3833d7 RSP: 002b:00007ffeff4161f0 EFLAGS: 00000293 ORIG_RAX: 000000000000003d RAX: fffffffffffffe00 RBX: 00000000000006f1 RCX: 00007f50ec3833d7 RDX: 0000000040000000 RSI: 00007ffeff41625c RDI: 00000000ffffffff RBP: 00007ffeff41625c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000293 R12: 000000000000021a R13: 000055557468c590 R14: 00000000000eba7f R15: 00007ffeff4162b0 task:dhcpcd state:R running task stack:24112 pid:5485 tgid:5485 ppid:1 task_flags:0x400140 flags:0x00000002 Call Trace: context_switch kernel/sched/core.c:5378 [inline] __schedule+0xf43/0x5890 kernel/sched/core.c:6765 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087 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:arch_stack_walk+0xbe/0x100 arch/x86/kernel/stacktrace.c:30 Code: 00 8b 85 70 ff ff ff 85 c0 74 10 48 89 df e8 89 ba 08 00 48 85 c0 48 89 c6 75 d1 48 8b 45 d0 65 48 2b 04 25 28 00 00 00 75 34 <48> 83 c4 68 5b 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc 65 48 8b RSP: 0018:ffffc900034c7200 EFLAGS: 00000246 RAX: 0000000000000000 RBX: ffffc900034c7200 RCX: 0000000000000000 RDX: 1ffff92000698e79 RSI: ffffffff8b56e09d RDI: ffffc900034c72cc RBP: ffffc900034c7290 R08: ffffc900034c7234 R09: ffffffff91054e42 R10: ffffc900034c7200 R11: 0000000000012ded R12: ffffffff81a59cc0 R13: ffffc900034c72c0 R14: 0000000000000000 R15: ffff88802c588000 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_kmalloc+0x8a/0xb0 mm/kasan/common.c:385 kasan_kmalloc include/linux/kasan.h:260 [inline] __do_kmalloc_node mm/slub.c:4294 [inline] __kmalloc_node_track_caller_noprof+0x222/0x510 mm/slub.c:4313 kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:537 __alloc_skb+0x164/0x380 net/core/skbuff.c:606 alloc_skb include/linux/skbuff.h:1331 [inline] alloc_skb_with_frags+0xe4/0x850 net/core/skbuff.c:6522 sock_alloc_send_pskb+0x7f1/0x980 net/core/sock.c:2914 unix_dgram_sendmsg+0x45e/0x1880 net/unix/af_unix.c:2017 sock_sendmsg_nosec net/socket.c:718 [inline] __sock_sendmsg net/socket.c:733 [inline] sock_write_iter+0x4fe/0x5b0 net/socket.c:1137 do_iter_readv_writev+0x655/0x950 fs/read_write.c:820 vfs_writev+0x363/0xdd0 fs/read_write.c:1050 do_writev+0x297/0x340 fs/read_write.c:1096 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: 0033:0x7f500bda5e03 RSP: 002b:00007ffe380319b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 00007ffe38031d18 RCX: 00007f500bda5e03 RDX: 0000000000000005 RSI: 00007ffe380319d0 RDI: 000000000000000a RBP: 000000000000012c R08: 000000000000000a R09: 00007ffe38031a10 R10: 00007ffe38031a18 R11: 0000000000000246 R12: 0000564c8c911fc0 R13: 0000564c62fd7f88 R14: 00000000ffffffff R15: 0000000000000001 net_ratelimit: 28803 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:7e:8a:04:d5:9b:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:7e:8a:04:d5:9b:7b, 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0) net_ratelimit: 33790 callbacks suppressed bridge0: received packet on veth0_to_bridge with own address as source address (addr:7e:8a:04:d5:9b:7b, vlan:0) bridge0: received packet on veth0_to_bridge with own address as source address (addr:7e:8a:04:d5:9b:7b, 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 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:aa:aa:aa:aa:aa:0c, vlan:0)