IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready bond0: Enslaving bond_slave_1 as an active interface with an up link IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready list_add corruption. prev->next should be next (ffffffff8a1dca60), but was ffff8881b55d6270. (prev=ffff8881d8b32bb0). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:28! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 6443 Comm: syz-executor5 Not tainted 4.20.0-rc6-next-20181210+ #164 IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_add_valid.cold.2+0x23/0x2a lib/list_debug.c:26 IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready Code: e8 00 1f d2 fd 0f 0b 48 89 d9 48 c7 c7 20 e6 80 88 e8 ef 1e d2 fd 0f 0b 48 89 f1 48 c7 c7 a0 e6 80 88 48 89 de e8 db 1e d2 fd <0f> 0b 90 90 90 90 90 55 48 89 e5 41 57 41 56 49 be 00 00 00 00 00 IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready RSP: 0018:ffff8881dad06dc0 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffffffff8a1dca60 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816621c5 RDI: 0000000000000005 RBP: ffff8881dad06dd8 R08: ffff8881b636e000 R09: ffffed103b5a5020 R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881cebd0270 R13: ffff8881cebd0000 R14: ffffffff8a1dc820 R15: ffffffff8a1dcab0 FS: 0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6b474a71b0 CR3: 00000001d4aa3000 CR4: 00000000001406e0 IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready __list_add include/linux/list.h:60 [inline] list_add_tail include/linux/list.h:93 [inline] neigh_alloc net/core/neighbour.c:395 [inline] ___neigh_create+0x14b7/0x2600 net/core/neighbour.c:553 IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready __neigh_create+0x30/0x40 net/core/neighbour.c:640 ip6_finish_output2+0xa64/0x2940 net/ipv6/ip6_output.c:117 ip6_finish_output+0x58c/0xc60 net/ipv6/ip6_output.c:154 NF_HOOK_COND include/linux/netfilter.h:278 [inline] ip6_output+0x232/0x9d0 net/ipv6/ip6_output.c:171 dst_output include/net/dst.h:444 [inline] NF_HOOK include/linux/netfilter.h:289 [inline] mld_sendpack+0xad5/0xfa0 net/ipv6/mcast.c:1683 mld_send_cr net/ipv6/mcast.c:1979 [inline] mld_ifc_timer_expire+0x447/0x8a0 net/ipv6/mcast.c:2478 call_timer_fn+0x272/0x920 kernel/time/timer.c:1325 bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready expire_timers kernel/time/timer.c:1362 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1681 run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694 __do_softirq+0x308/0xb7e kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:rcu_dynticks_curr_cpu_in_eqs+0x10d/0x170 kernel/rcu/tree.c:302 Code: e9 03 0f b6 14 11 84 d2 74 05 80 fa 03 7e 3a 48 ba 00 00 00 00 00 fc ff df 41 89 45 c0 d1 e8 83 f0 01 48 c7 04 13 00 00 00 00 <83> e0 01 48 8b 75 d8 65 48 33 34 25 28 00 00 00 75 45 48 83 c4 68 RSP: 0018:ffff88818741e978 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 00000000000484ea RBX: 1ffff11030e83d30 RCX: 1ffff11030e83d34 RDX: dffffc0000000000 RSI: 0000000000000004 RDI: ffff88818741e9a0 RBP: ffff88818741ea00 R08: ffffed103b5a5b60 R09: ffffed103b5a5b5f R10: ffffed103b5a5b5f R11: ffff8881dad2dafb R12: ffff8881dad2da40 R13: ffff88818741e9e0 R14: ffff8881dad2daf8 R15: 0000000000000000 rcu_is_watching+0x10/0x30 kernel/rcu/tree.c:932 rcu_read_lock include/linux/rcupdate.h:608 [inline] lock_page_memcg+0x210/0x350 mm/memcontrol.c:1869 bridge0: port 2(bridge_slave_1) entered blocking state page_remove_file_rmap mm/rmap.c:1219 [inline] page_remove_rmap+0x855/0x1a30 mm/rmap.c:1304 bridge0: port 2(bridge_slave_1) entered forwarding state bridge0: port 1(bridge_slave_0) entered blocking state bridge0: port 1(bridge_slave_0) entered forwarding state IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready zap_pte_range mm/memory.c:1092 [inline] zap_pmd_range mm/memory.c:1194 [inline] zap_pud_range mm/memory.c:1223 [inline] zap_p4d_range mm/memory.c:1244 [inline] unmap_page_range+0x11c7/0x2930 mm/memory.c:1265 unmap_single_vma+0x19b/0x310 mm/memory.c:1310 unmap_vmas+0x252/0x3d0 mm/memory.c:1345 exit_mmap+0x2be/0x590 mm/mmap.c:3129 __mmput kernel/fork.c:1041 [inline] mmput+0x247/0x610 kernel/fork.c:1062 exec_mmap fs/exec.c:1046 [inline] flush_old_exec+0xb91/0x21a0 fs/exec.c:1279 load_elf_binary+0xa39/0x5620 fs/binfmt_elf.c:869 search_binary_handler+0x17d/0x570 fs/exec.c:1656 exec_binprm fs/exec.c:1698 [inline] __do_execve_file.isra.35+0x178c/0x2760 fs/exec.c:1818 do_execveat_common fs/exec.c:1865 [inline] do_execve fs/exec.c:1882 [inline] __do_sys_execve fs/exec.c:1963 [inline] __se_sys_execve fs/exec.c:1958 [inline] __x64_sys_execve+0x8f/0xc0 fs/exec.c:1958 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x455f07 Code: Bad RIP value. RSP: 002b:00007ffc490a1218 EFLAGS: 00000207 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000455f07 RDX: 00007ffc490a1918 RSI: 00007ffc490a1250 RDI: 00000000004dca5b RBP: 00007ffc490a13d0 R08: 0000000000000000 R09: 000000000000001e R10: 0000000000000008 R11: 0000000000000207 R12: 00007ffc490a15b0 R13: 00007ffc490a1578 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 6ff0883a728584b9 ]--- IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready RIP: 0010:__list_add_valid.cold.2+0x23/0x2a lib/list_debug.c:26 Code: e8 00 1f d2 fd 0f 0b 48 89 d9 48 c7 c7 20 e6 80 88 e8 ef 1e d2 fd 0f 0b 48 89 f1 48 c7 c7 a0 e6 80 88 48 89 de e8 db 1e d2 fd <0f> 0b 90 90 90 90 90 55 48 89 e5 41 57 41 56 49 be 00 00 00 00 00 IPv6: ADDRCONF(NETDEV_CHANGE): bridge0: link becomes ready RSP: 0018:ffff8881dad06dc0 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffffffff8a1dca60 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816621c5 RDI: 0000000000000005 RBP: ffff8881dad06dd8 R08: ffff8881b636e000 R09: ffffed103b5a5020 kobject: 'veth0_to_team' (000000000af66d49): kobject_add_internal: parent: 'net', set: 'devices' R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881cebd0270 R13: ffff8881cebd0000 R14: ffffffff8a1dc820 R15: ffffffff8a1dcab0 FS: 0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000 kobject: 'veth0_to_team' (000000000af66d49): kobject_uevent_env CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'veth0_to_team' (000000000af66d49): fill_kobj_path: path = '/devices/virtual/net/veth0_to_team' CR2: 0000000000455edd CR3: 00000001d4aa3000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400