device bridge0 entered promiscuous mode bridge0: port 6(macvlan5) entered blocking state bridge0: port 6(macvlan5) entered disabled state device bridge0 left promiscuous mode ====================================================== WARNING: possible circular locking dependency detected 4.14.286-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor388/8237 is trying to acquire lock: (&table[i].mutex){+.+.}, at: [] nf_tables_netdev_event+0x10d/0x4d0 net/netfilter/nf_tables_netdev.c:122 but task is already holding lock: (rtnl_mutex){+.+.}, at: [] rtnl_lock net/core/rtnetlink.c:72 [inline] (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 (rtnl_mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 unregister_netdevice_notifier+0x5e/0x2b0 net/core/dev.c:1630 tee_tg_destroy+0x5c/0xb0 net/netfilter/xt_TEE.c:123 cleanup_entry+0x232/0x310 net/ipv6/netfilter/ip6_tables.c:685 __do_replace+0x38d/0x580 net/ipv6/netfilter/ip6_tables.c:1106 do_replace net/ipv6/netfilter/ip6_tables.c:1162 [inline] do_ip6t_set_ctl+0x256/0x3b0 net/ipv6/netfilter/ip6_tables.c:1688 nf_sockopt net/netfilter/nf_sockopt.c:106 [inline] nf_setsockopt+0x5f/0xb0 net/netfilter/nf_sockopt.c:115 ipv6_setsockopt+0xc0/0x120 net/ipv6/ipv6_sockglue.c:937 sctp_setsockopt+0x12b/0x3d50 net/sctp/socket.c:4023 SYSC_setsockopt net/socket.c:1865 [inline] SyS_setsockopt+0x110/0x1e0 net/socket.c:1844 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #1 (&xt[i].mutex){+.+.}: __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 match_revfn+0x43/0x210 net/netfilter/x_tables.c:332 xt_find_revision+0x8d/0x1d0 net/netfilter/x_tables.c:380 nfnl_compat_get+0x1f7/0x870 net/netfilter/nft_compat.c:678 nfnetlink_rcv_msg+0x9bb/0xc00 net/netfilter/nfnetlink.c:214 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2454 nfnetlink_rcv+0x1ab/0x1da0 net/netfilter/nfnetlink.c:515 netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322 netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb -> #0 (&table[i].mutex){+.+.}: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 nf_tables_netdev_event+0x10d/0x4d0 net/netfilter/nf_tables_netdev.c:122 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers net/core/dev.c:1683 [inline] rollback_registered_many+0x765/0xbb0 net/core/dev.c:7211 unregister_netdevice_many.part.0+0x18/0x2e0 net/core/dev.c:8293 unregister_netdevice_many+0x36/0x50 net/core/dev.c:8292 rtnl_newlink+0x13fd/0x1830 net/core/rtnetlink.c:2773 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4322 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2454 netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322 netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb other info that might help us debug this: Chain exists of: &table[i].mutex --> &xt[i].mutex --> rtnl_mutex Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(rtnl_mutex); lock(&xt[i].mutex); lock(rtnl_mutex); lock(&table[i].mutex); *** DEADLOCK *** 1 lock held by syz-executor388/8237: #0: (rtnl_mutex){+.+.}, at: [] rtnl_lock net/core/rtnetlink.c:72 [inline] #0: (rtnl_mutex){+.+.}, at: [] rtnetlink_rcv_msg+0x31d/0xb10 net/core/rtnetlink.c:4317 stack backtrace: CPU: 0 PID: 8237 Comm: syz-executor388 Not tainted 4.14.286-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/29/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_circular_bug.constprop.0.cold+0x2d7/0x41e kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1905 [inline] check_prevs_add kernel/locking/lockdep.c:2022 [inline] validate_chain kernel/locking/lockdep.c:2464 [inline] __lock_acquire+0x2e0e/0x3f20 kernel/locking/lockdep.c:3491 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xc4/0x1310 kernel/locking/mutex.c:893 nf_tables_netdev_event+0x10d/0x4d0 net/netfilter/nf_tables_netdev.c:122 notifier_call_chain+0x108/0x1a0 kernel/notifier.c:93 call_netdevice_notifiers_info net/core/dev.c:1667 [inline] call_netdevice_notifiers net/core/dev.c:1683 [inline] rollback_registered_many+0x765/0xbb0 net/core/dev.c:7211 unregister_netdevice_many.part.0+0x18/0x2e0 net/core/dev.c:8293 unregister_netdevice_many+0x36/0x50 net/core/dev.c:8292 rtnl_newlink+0x13fd/0x1830 net/core/rtnetlink.c:2773 rtnetlink_rcv_msg+0x3be/0xb10 net/core/rtnetlink.c:4322 netlink_rcv_skb+0x125/0x390 net/netlink/af_netlink.c:2454 netlink_unicast_kernel net/netlink/af_netlink.c:1296 [inline] netlink_unicast+0x437/0x610 net/netlink/af_netlink.c:1322 netlink_sendmsg+0x648/0xbc0 net/netlink/af_netlink.c:1893 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7f0416991469 RSP: 002b:00007ffe50983598 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f0416991469 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000006 RBP: 0000000000000000 R08: 000000000000000d R09: 000000000000000d R10: 000000000000000d R11: 0000000000000246 R12: 00007ffe509835b0 R13: 00000000000f4240 R14: 0000000000007040 R15: 00007ffe509835a4 syz-executor388 (8237) used greatest stack depth: 24856 bytes left device bond_slave_0 entered promiscuous mode device bond_slave_1 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device macvlan5 bridge0: port 6(macvlan5) entered blocking state bridge0: port 6(macvlan5) entered disabled state device macvlan5 entered promiscuous mode device bond0 entered promiscuous mode bridge0: port 6(macvlan5) entered blocking state bridge0: port 6(macvlan5) entered forwarding state device team_slave_0 entered promiscuous mode device team_slave_1 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device macvlan6 bridge0: port 7(macvlan6) entered blocking state bridge0: port 7(macvlan6) entered disabled state device macvlan6 entered promiscuous mode device team0 entered promiscuous mode bridge0: port 7(macvlan6) entered blocking state bridge0: port 7(macvlan6) entered forwarding state device dummy0 entered promiscuous mode bridge0: port 8(macvlan7) entered blocking state bridge0: port 8(macvlan7) entered disabled state device macvlan7 entered promiscuous mode bridge0: port 8(macvlan7) entered blocking state bridge0: port 8(macvlan7) entered forwarding state device batadv0 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device macvlan8 bridge0: port 9(macvlan8) entered blocking state bridge0: port 9(macvlan8) entered disabled state device macvlan8 entered promiscuous mode bridge0: port 9(macvlan8) entered blocking state bridge0: port 9(macvlan8) entered forwarding state device veth0 entered promiscuous mode bridge0: port 10(macvlan9) entered blocking state bridge0: port 10(macvlan9) entered disabled state device macvlan9 entered promiscuous mode bridge0: port 10(macvlan9) entered blocking state bridge0: port 10(macvlan9) entered forwarding state device veth1 entered promiscuous mode bridge0: port 11(macvlan10) entered blocking state bridge0: port 11(macvlan10) entered disabled state device macvlan10 entered promiscuous mode bridge0: port 11(macvlan10) entered blocking state bridge0: port 11(macvlan10) entered forwarding state device veth0_to_bridge entered promiscuous mode bridge0: port 12(macvlan11) entered blocking state bridge0: port 12(macvlan11) entered disabled state device macvlan11 entered promiscuous mode bridge0: port 12(macvlan11) entered blocking state bridge0: port 12(macvlan11) entered forwarding state device veth1_to_bridge entered promiscuous mode bridge0: port 13(macvlan12) entered blocking state bridge0: port 13(macvlan12) entered disabled state device macvlan12 entered promiscuous mode bridge0: port 13(macvlan12) entered blocking state bridge0: port 13(macvlan12) entered forwarding state device veth0_to_bond entered promiscuous mode bridge0: port 14(macvlan13) entered blocking state bridge0: port 14(macvlan13) entered disabled state device macvlan13 entered promiscuous mode bridge0: port 14(macvlan13) entered blocking state bridge0: port 14(macvlan13) entered forwarding state device veth1_to_bond entered promiscuous mode bridge0: port 15(macvlan14) entered blocking state bridge0: port 15(macvlan14) entered disabled state device macvlan14 entered promiscuous mode bridge0: port 15(macvlan14) entered blocking state bridge0: port 15(macvlan14) entered forwarding state device veth0_to_team entered promiscuous mode bridge0: port 16(macvlan15) entered blocking state bridge0: port 16(macvlan15) entered disabled state device macvlan15 entered promiscuous mode bridge0: port 16(macvlan15) entered blocking state bridge0: port 16(macvlan15) entered forwarding state device veth1_to_team entered promiscuous mode bridge0: port 17(macvlan16) entered blocking state bridge0: port 17(macvlan16) entered disabled state device macvlan16 entered promiscuous mode bridge0: port 17(macvlan16) entered blocking state bridge0: port 17(macvlan16) entered forwarding state device veth0_to_batadv entered promiscuous mode bridge0: port 18(macvlan17) entered blocking state bridge0: port 18(macvlan17) entered disabled state device macvlan17 entered promiscuous mode bridge0: port 18(macvlan17) entered blocking state bridge0: port 18(macvlan17) entered forwarding state device batadv_slave_0 entered promiscuous mode bridge0: port 19(macvlan18) entered blocking state bridge0: port 19(macvlan18) entered disabled state device macvlan18 entered promiscuous mode bridge0: port 19(macvlan18) entered blocking state bridge0: port 19(macvlan18) entered forwarding state device veth1_to_batadv entered promiscuous mode bridge0: port 20(macvlan19) entered blocking state bridge0: port 20(macvlan19) entered disabled state device macvlan19 entered promiscuous mode bridge0: port 20(macvlan19) entered blocking state bridge0: port 20(macvlan19) entered forwarding state device batadv_slave_1 entered promiscuous mode bridge0: port 21(macvlan20) entered blocking state bridge0: port 21(macvlan20) entered disabled state device macvlan20 entered promiscuous mode bridge0: port 21(macvlan20) entered blocking state bridge0: port 21(macvlan20) entered forwarding state device veth0_to_hsr entered promiscuous mode bridge0: port 22(macvlan21) entered blocking state bridge0: port 22(macvlan21) entered disabled state device macvlan21 entered promiscuous mode bridge0: port 22(macvlan21) entered blocking state bridge0: port 22(macvlan21) entered forwarding state device veth1_to_hsr entered promiscuous mode bridge0: port 23(macvlan22) entered blocking state bridge0: port 23(macvlan22) entered disabled state device macvlan22 entered promiscuous mode bridge0: port 23(macvlan22) entered blocking state bridge0: port 23(macvlan22) entered forwarding state device hsr0 entered promiscuous mode bridge0: port 24(macvlan23) entered blocking state bridge0: port 24(macvlan23) entered disabled state device macvlan23 entered promiscuous mode bridge0: port 24(macvlan23) entered blocking state bridge0: port 24(macvlan23) entered forwarding state device veth1_virt_wifi entered promiscuous mode bridge0: port 25(macvlan24) entered blocking state bridge0: port 25(macvlan24) entered disabled state device macvlan24 entered promiscuous mode bridge0: port 25(macvlan24) entered blocking state bridge0: port 25(macvlan24) entered forwarding state device veth0_virt_wifi entered promiscuous mode bridge0: port 26(macvlan25) entered blocking state bridge0: port 26(macvlan25) entered disabled state device macvlan25 entered promiscuous mode bridge0: port 26(macvlan25) entered blocking state bridge0: port 26(macvlan25) entered forwarding state bridge0: port 27(macvlan26) entered blocking state bridge0: port 27(macvlan26) entered disabled state device macvlan26 entered promiscuous mode bridge0: port 27(macvlan26) entered blocking state bridge0: port 27(macvlan26) entered forwarding state bridge0: port 28(macvlan27) entered blocking state bridge0: port 28(macvlan27) entered disabled state device macvlan27 entered promiscuous mode device vlan0 entered promiscuous mode bridge0: port 28(macvlan27) entered blocking state bridge0: port 28(macvlan27) entered forwarding state bridge0: port 29(macvlan28) entered blocking state bridge0: port 29(macvlan28) entered disabled state device macvlan28 entered promiscuous mode device vlan1 entered promiscuous mode bridge0: port 29(macvlan28) entered blocking state bridge0: port 29(macvlan28) entered forwarding state bridge0: port 30(macvlan29) entered blocking state bridge0: port 30(macvlan29) entered disabled state device macvlan29 entered promiscuous mode bridge0: port 30(macvlan29) entered blocking state bridge0: port 30(macvlan29) entered forwarding state HSR: VLAN not yet supported ------------[ cut here ]------------ WARNING: CPU: 1 PID: 18 at net/hsr/hsr_forward.c:336 hsr_fill_frame_info net/hsr/hsr_forward.c:336 [inline] WARNING: CPU: 1 PID: 18 at net/hsr/hsr_forward.c:336 hsr_forward_skb.cold+0x18/0xef net/hsr/hsr_forward.c:370