device bridge_slave_0 entered promiscuous mode bond0: Enslaving bond_slave_0 as an active interface with an up link IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready list_add corruption. prev->next should be next (ffffffff8a1dca60), but was 0000000000000000. (prev=ffff8881bf427d70). ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:28! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 6421 Comm: syz-executor3 Not tainted 4.20.0-rc6-next-20181210+ #164 IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes 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 kobject: 'bonding_slave' (00000000802e5510): kobject_add_internal: parent: 'bond_slave_1', set: '' 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 bond0: Enslaving bond_slave_1 as an active interface with an up link RSP: 0018:ffff8881dad06dc0 EFLAGS: 00010286 RAX: 0000000000000075 RBX: ffffffff8a1dca60 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816621c5 RDI: 0000000000000005 RBP: ffff8881dad06dd8 R08: ffff8881d241e2c0 R09: ffffed103b5a5020 R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881d3443db0 R13: ffff8881d3443b40 R14: ffffffff8a1dc820 R15: ffffffff8a1dcab0 FS: 0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004dca5b CR3: 00000001cddd5000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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_UP): bridge_slave_0: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready bridge0: port 2(bridge_slave_1) entered blocking state bridge0: port 2(bridge_slave_1) entered disabled state kobject: 'brport' (000000003bdab12c): kobject_add_internal: parent: 'bridge_slave_1', set: '' device bridge_slave_1 entered promiscuous mode kobject: 'brport' (000000003bdab12c): kobject_uevent_env kobject: 'brport' (000000003bdab12c): kobject_uevent_env: filter function caused the event to drop! __neigh_create+0x30/0x40 net/core/neighbour.c:640 IPv6: ADDRCONF(NETDEV_UP): veth0_to_bond: link is not ready ip6_finish_output2+0xa64/0x2940 net/ipv6/ip6_output.c:117 IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bond: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready ip6_finish_output+0x58c/0xc60 net/ipv6/ip6_output.c:154 IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready 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 IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready expire_timers kernel/time/timer.c:1362 [inline] __run_timers+0x7e5/0xc70 kernel/time/timer.c:1681 kobject: 'veth0_to_bond' (0000000001f5e0ad): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth0_to_bond' (0000000001f5e0ad): kobject_uevent_env kobject: 'veth0_to_bond' (0000000001f5e0ad): fill_kobj_path: path = '/devices/virtual/net/veth0_to_bond' run_timer_softirq+0x52/0xb0 kernel/time/timer.c:1694 __do_softirq+0x308/0xb7e kernel/softirq.c:292 kobject: 'queues' (0000000033c2a795): kobject_add_internal: parent: 'veth0_to_bond', set: '' kobject: 'queues' (0000000033c2a795): kobject_uevent_env kobject: 'queues' (0000000033c2a795): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (0000000071664034): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (0000000071664034): kobject_uevent_env invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x17f/0x1c0 kernel/softirq.c:413 kobject: 'rx-0' (0000000071664034): fill_kobj_path: path = '/devices/virtual/net/veth0_to_bond/queues/rx-0' exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1cb/0x760 arch/x86/kernel/apic/apic.c:1061 kobject: 'tx-0' (00000000833bd25a): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000833bd25a): kobject_uevent_env apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:807 RIP: 0010:__read_once_size include/linux/compiler.h:182 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:69 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x26/0x50 kernel/kcov.c:101 Code: 5d c3 66 90 55 48 89 e5 48 8b 75 08 65 48 8b 04 25 40 ee 01 00 65 8b 15 a8 f5 81 7e 81 e2 00 01 1f 00 75 2b 8b 90 d8 12 00 00 <83> fa 02 75 20 48 8b 88 e0 12 00 00 8b 80 dc 12 00 00 48 8b 11 48 RSP: 0018:ffff888185396e50 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: ffff8881d241e2c0 RBX: 0000000000000000 RCX: ffffffff81b37a9d RDX: 0000000000000000 RSI: ffffffff81b37aff RDI: 0000000000000005 kobject: 'tx-0' (00000000833bd25a): fill_kobj_path: path = '/devices/virtual/net/veth0_to_bond/queues/tx-0' RBP: ffff888185396e50 R08: ffff8881d241e2c0 R09: fffff94000dd8c86 kobject: 'bond_slave_0' (00000000ec0211a3): kobject_add_internal: parent: 'net', set: 'devices' R10: fffff94000dd8c86 R11: ffffea0006ec6433 R12: ffffea0006ec6448 kobject: 'bond_slave_0' (00000000ec0211a3): kobject_uevent_env R13: 00007f33ac6db000 R14: dffffc0000000000 R15: ffffea0006ec6440 kobject: 'bond_slave_0' (00000000ec0211a3): fill_kobj_path: path = '/devices/virtual/net/bond_slave_0' kobject: 'queues' (00000000070aca3a): kobject_add_internal: parent: 'bond_slave_0', set: '' compound_head include/linux/page-flags.h:143 [inline] PageAnon include/linux/page-flags.h:430 [inline] mm_counter include/linux/mm.h:1746 [inline] zap_pte_range mm/memory.c:1091 [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+0xf4f/0x2930 mm/memory.c:1265 kobject: 'queues' (00000000070aca3a): kobject_uevent_env kobject: 'queues' (00000000070aca3a): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (000000001b77784d): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (000000001b77784d): kobject_uevent_env kobject: 'rx-0' (000000001b77784d): fill_kobj_path: path = '/devices/virtual/net/bond_slave_0/queues/rx-0' 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 kobject: 'tx-0' (00000000cf2a68fa): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (00000000cf2a68fa): kobject_uevent_env __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 kobject: 'tx-0' (00000000cf2a68fa): fill_kobj_path: path = '/devices/virtual/net/bond_slave_0/queues/tx-0' kobject: 'veth1_to_bond' (00000000cc61164c): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'veth1_to_bond' (00000000cc61164c): kobject_uevent_env kobject: 'veth1_to_bond' (00000000cc61164c): fill_kobj_path: path = '/devices/virtual/net/veth1_to_bond' kobject: 'queues' (000000009d49d542): kobject_add_internal: parent: 'veth1_to_bond', set: '' kobject: 'queues' (000000009d49d542): kobject_uevent_env kobject: 'queues' (000000009d49d542): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (00000000a3398977): kobject_add_internal: parent: 'queues', set: 'queues' load_elf_binary+0xa39/0x5620 fs/binfmt_elf.c:869 kobject: 'rx-0' (00000000a3398977): kobject_uevent_env 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 kobject: 'rx-0' (00000000a3398977): fill_kobj_path: path = '/devices/virtual/net/veth1_to_bond/queues/rx-0' kobject: 'tx-0' (0000000089bc1eae): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (0000000089bc1eae): kobject_uevent_env 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 kobject: 'tx-0' (0000000089bc1eae): fill_kobj_path: path = '/devices/virtual/net/veth1_to_bond/queues/tx-0' RIP: 0033:0x455f07 Code: Bad RIP value. kobject: 'bond_slave_1' (000000005400197a): kobject_add_internal: parent: 'net', set: 'devices' RSP: 002b:00007ffe69678318 EFLAGS: 00000207 ORIG_RAX: 000000000000003b RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000455f07 RDX: 00007ffe69678a18 RSI: 00007ffe69678350 RDI: 00000000004dca5b RBP: 00007ffe696784d0 R08: 0000000000000000 R09: 000000000000003f R10: 0000000000000008 R11: 0000000000000207 R12: 00007ffe696786b0 R13: 00007ffe69678678 R14: 0000000000000000 R15: 0000000000000000 kobject: 'bond_slave_1' (000000005400197a): kobject_uevent_env Modules linked in: ---[ end trace 983a68b6ba9bb525 ]--- kobject: 'bond_slave_1' (000000005400197a): fill_kobj_path: path = '/devices/virtual/net/bond_slave_1' RIP: 0010:__list_add_valid.cold.2+0x23/0x2a lib/list_debug.c:26 kobject: 'queues' (000000007a09843b): kobject_add_internal: parent: 'bond_slave_1', set: '' 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 kobject: 'queues' (000000007a09843b): kobject_uevent_env RSP: 0018:ffff8881dad06dc0 EFLAGS: 00010286 kobject: 'queues' (000000007a09843b): kobject_uevent_env: filter function caused the event to drop! RAX: 0000000000000075 RBX: ffffffff8a1dca60 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff816621c5 RDI: 0000000000000005 RBP: ffff8881dad06dd8 R08: ffff8881d241e2c0 R09: ffffed103b5a5020 R10: ffffed103b5a5020 R11: ffff8881dad28107 R12: ffff8881d3443db0 R13: ffff8881d3443b40 R14: ffffffff8a1dc820 R15: ffffffff8a1dcab0 FS: 0000000000000000(0000) GS:ffff8881dad00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000455edd CR3: 00000001cddd5000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400