netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. IPv6: ADDRCONF(NETDEV_UP): team948: link is not ready 8021q: adding VLAN 0 to HW filter on device team948 ============================================ WARNING: possible recursive locking detected 4.19.211-syzkaller #0 Not tainted -------------------------------------------- syz-executor.3/23120 is trying to acquire lock: 00000000a8dc6f7f (&team->lock){+.+.}, at: team_vlan_rx_add_vid+0x38/0x1e0 drivers/net/team/team.c:1896 but task is already holding lock: 000000000b0c720a (&team->lock){+.+.}, at: team_add_slave+0x98/0x1fa0 drivers/net/team/team.c:1975 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&team->lock); lock(&team->lock); *** DEADLOCK *** May be due to missing lock nesting notation 2 locks held by syz-executor.3/23120: #0: 000000001cc3b9d2 (rtnl_mutex){+.+.}, at: rtnl_lock net/core/rtnetlink.c:77 [inline] #0: 000000001cc3b9d2 (rtnl_mutex){+.+.}, at: rtnetlink_rcv_msg+0x3fe/0xb80 net/core/rtnetlink.c:4779 #1: 000000000b0c720a (&team->lock){+.+.}, at: team_add_slave+0x98/0x1fa0 drivers/net/team/team.c:1975 stack backtrace: CPU: 1 PID: 23120 Comm: syz-executor.3 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/12/2023 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 print_deadlock_bug kernel/locking/lockdep.c:1764 [inline] check_deadlock kernel/locking/lockdep.c:1808 [inline] validate_chain kernel/locking/lockdep.c:2404 [inline] __lock_acquire.cold+0x121/0x57e kernel/locking/lockdep.c:3416 lock_acquire+0x170/0x3c0 kernel/locking/lockdep.c:3908 __mutex_lock_common kernel/locking/mutex.c:937 [inline] __mutex_lock+0xd7/0x1190 kernel/locking/mutex.c:1078 team_vlan_rx_add_vid+0x38/0x1e0 drivers/net/team/team.c:1896 vlan_add_rx_filter_info+0x13c/0x1c0 net/8021q/vlan_core.c:210 __vlan_vid_add net/8021q/vlan_core.c:278 [inline] vlan_vid_add+0x3ee/0x7e0 net/8021q/vlan_core.c:308 vlan_device_event.cold+0x28/0x2d net/8021q/vlan.c:382 notifier_call_chain+0xc0/0x230 kernel/notifier.c:93 call_netdevice_notifiers net/core/dev.c:1762 [inline] dev_open net/core/dev.c:1442 [inline] dev_open+0x128/0x140 net/core/dev.c:1430 team_port_add drivers/net/team/team.c:1220 [inline] team_add_slave+0xb02/0x1fa0 drivers/net/team/team.c:1976 do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2321 do_setlink+0x7ec/0x3540 net/core/rtnetlink.c:2455 rtnl_newlink+0xda9/0x15c0 net/core/rtnetlink.c:3077 rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4782 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f26f154a0c9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f26efa59168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f26f166a1f0 RCX: 00007f26f154a0c9 RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004 RBP: 00007f26f15a5ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffcef5e5c7f R14: 00007f26efa59300 R15: 0000000000022000 team313: Port device team948 added netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. device team376 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team376: link is not ready 8021q: adding VLAN 0 to HW filter on device team376 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. IPv6: ADDRCONF(NETDEV_UP): bond887: link is not ready 8021q: adding VLAN 0 to HW filter on device bond887 bond11 (uninitialized): Released all slaves 8021q: adding VLAN 0 to HW filter on device team822 bond887: Enslaving team822 as an active interface with an up link device team377 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team377: link is not ready 8021q: adding VLAN 0 to HW filter on device team377 IPv6: ADDRCONF(NETDEV_CHANGE): bond887: link becomes ready bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond888: link is not ready 8021q: adding VLAN 0 to HW filter on device bond888 device team378 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team378: link is not ready 8021q: adding VLAN 0 to HW filter on device team378 8021q: adding VLAN 0 to HW filter on device team823 bond888: Enslaving team823 as an active interface with an up link IPv6: ADDRCONF(NETDEV_CHANGE): bond888: link becomes ready bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond889: link is not ready 8021q: adding VLAN 0 to HW filter on device bond889 device team379 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team379: link is not ready 8021q: adding VLAN 0 to HW filter on device team379 IPv6: ADDRCONF(NETDEV_UP): team291: link is not ready 8021q: adding VLAN 0 to HW filter on device team291 bond11 (uninitialized): Released all slaves 8021q: adding VLAN 0 to HW filter on device team824 bond889: Enslaving team824 as an active interface with an up link IPv6: ADDRCONF(NETDEV_CHANGE): bond889: link becomes ready bond11 (uninitialized): Released all slaves bond11 (uninitialized): Released all slaves device team380 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team380: link is not ready 8021q: adding VLAN 0 to HW filter on device team380 IPv6: ADDRCONF(NETDEV_UP): bond921: link is not ready 8021q: adding VLAN 0 to HW filter on device bond921 IPv6: ADDRCONF(NETDEV_UP): bond890: link is not ready 8021q: adding VLAN 0 to HW filter on device bond890 bond11 (uninitialized): Released all slaves 8021q: adding VLAN 0 to HW filter on device team825 bond890: Enslaving team825 as an active interface with an up link IPv6: ADDRCONF(NETDEV_CHANGE): bond890: link becomes ready bond11 (uninitialized): Released all slaves device team381 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team381: link is not ready 8021q: adding VLAN 0 to HW filter on device team381 IPv6: ADDRCONF(NETDEV_UP): bond922: link is not ready 8021q: adding VLAN 0 to HW filter on device bond922 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond891: link is not ready 8021q: adding VLAN 0 to HW filter on device bond891 8021q: adding VLAN 0 to HW filter on device team826 bond891: Enslaving team826 as an active interface with an up link device team382 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team382: link is not ready 8021q: adding VLAN 0 to HW filter on device team382 IPv6: ADDRCONF(NETDEV_CHANGE): bond891: link becomes ready IPv6: ADDRCONF(NETDEV_UP): bond923: link is not ready 8021q: adding VLAN 0 to HW filter on device bond923 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond892: link is not ready 8021q: adding VLAN 0 to HW filter on device bond892 device team383 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team383: link is not ready 8021q: adding VLAN 0 to HW filter on device team383 device team295 entered promiscuous mode 8021q: adding VLAN 0 to HW filter on device team827 bond892: Enslaving team827 as an active interface with an up link bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_CHANGE): bond892: link becomes ready bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond893: link is not ready 8021q: adding VLAN 0 to HW filter on device bond893 8021q: adding VLAN 0 to HW filter on device team828 bond893: Enslaving team828 as an active interface with an up link bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_CHANGE): bond893: link becomes ready device team385 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team385: link is not ready 8021q: adding VLAN 0 to HW filter on device team385 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond894: link is not ready 8021q: adding VLAN 0 to HW filter on device bond894 8021q: adding VLAN 0 to HW filter on device team829 bond894: Enslaving team829 as an active interface with an up link bond11 (uninitialized): Released all slaves device team386 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team386: link is not ready 8021q: adding VLAN 0 to HW filter on device team386 IPv6: ADDRCONF(NETDEV_CHANGE): bond894: link becomes ready nla_parse: 61 callbacks suppressed netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. bond11 (uninitialized): Released all slaves netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'. IPv6: ADDRCONF(NETDEV_UP): bond895: link is not ready 8021q: adding VLAN 0 to HW filter on device bond895 8021q: adding VLAN 0 to HW filter on device team830 bond895: Enslaving team830 as an active interface with an up link IPv6: ADDRCONF(NETDEV_CHANGE): bond895: link becomes ready netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. bond11 (uninitialized): Released all slaves netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond924: link is not ready 8021q: adding VLAN 0 to HW filter on device bond924 IPv6: ADDRCONF(NETDEV_UP): bond896: link is not ready 8021q: adding VLAN 0 to HW filter on device bond896 device team300 entered promiscuous mode device team387 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team387: link is not ready 8021q: adding VLAN 0 to HW filter on device team387 8021q: adding VLAN 0 to HW filter on device team831 bond896: Enslaving team831 as an active interface with an up link bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_CHANGE): bond896: link becomes ready IPv6: ADDRCONF(NETDEV_UP): team301: link is not ready 8021q: adding VLAN 0 to HW filter on device team301 bond11 (uninitialized): Released all slaves device team388 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team388: link is not ready 8021q: adding VLAN 0 to HW filter on device team388 IPv6: ADDRCONF(NETDEV_UP): bond897: link is not ready 8021q: adding VLAN 0 to HW filter on device bond897 8021q: adding VLAN 0 to HW filter on device team832 bond897: Enslaving team832 as an active interface with an up link bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_CHANGE): bond897: link becomes ready device team389 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team389: link is not ready 8021q: adding VLAN 0 to HW filter on device team389 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond898: link is not ready 8021q: adding VLAN 0 to HW filter on device bond898 8021q: adding VLAN 0 to HW filter on device team833 bond898: Enslaving team833 as an active interface with an up link device team303 entered promiscuous mode bond11 (uninitialized): Released all slaves bond898: Releasing backup interface team833 bond925 (uninitialized): Released all slaves bond11 (uninitialized): Released all slaves bond11 (uninitialized): Released all slaves ieee802154 phy0 wpan0: encryption failed: -22 ieee802154 phy1 wpan1: encryption failed: -22 IPv6: ADDRCONF(NETDEV_UP): bond899: link is not ready 8021q: adding VLAN 0 to HW filter on device bond899 8021q: adding VLAN 0 to HW filter on device team834 bond899: Enslaving team834 as an active interface with an up link device team304 entered promiscuous mode IPv6: ADDRCONF(NETDEV_UP): team391: link is not ready 8021q: adding VLAN 0 to HW filter on device team391 bond899: Releasing backup interface team834 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond900: link is not ready 8021q: adding VLAN 0 to HW filter on device bond900 8021q: adding VLAN 0 to HW filter on device team835 bond900: Enslaving team835 as an active interface with an up link IPv6: ADDRCONF(NETDEV_CHANGE): bond900: link becomes ready bond900: Releasing backup interface team835 bond11 (uninitialized): Released all slaves bond925 (uninitialized): Released all slaves bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond901: link is not ready 8021q: adding VLAN 0 to HW filter on device bond901 8021q: adding VLAN 0 to HW filter on device team836 bond901: Enslaving team836 as an active interface with an up link bond901: Releasing backup interface team836 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): team393: link is not ready 8021q: adding VLAN 0 to HW filter on device team393 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond902: link is not ready 8021q: adding VLAN 0 to HW filter on device bond902 bond11 (uninitialized): Released all slaves 8021q: adding VLAN 0 to HW filter on device team837 bond902: Enslaving team837 as an active interface with an up link bond902: Releasing backup interface team837 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): team395: link is not ready 8021q: adding VLAN 0 to HW filter on device team395 IPv6: ADDRCONF(NETDEV_UP): bond903: link is not ready 8021q: adding VLAN 0 to HW filter on device bond903 bond11 (uninitialized): Released all slaves 8021q: adding VLAN 0 to HW filter on device team838 bond903: Enslaving team838 as an active interface with an up link bond903: Releasing backup interface team838 bond11 (uninitialized): Released all slaves bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond925: link is not ready 8021q: adding VLAN 0 to HW filter on device bond925 IPv6: ADDRCONF(NETDEV_UP): bond904: link is not ready 8021q: adding VLAN 0 to HW filter on device bond904 8021q: adding VLAN 0 to HW filter on device team839 bond904: Enslaving team839 as an active interface with an up link bond904: Releasing backup interface team839 bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond905: link is not ready 8021q: adding VLAN 0 to HW filter on device bond905 8021q: adding VLAN 0 to HW filter on device team840 bond905: Enslaving team840 as an active interface with an up link bond11 (uninitialized): Released all slaves bond905: Releasing backup interface team840 bond11 (uninitialized): Released all slaves bond11 (uninitialized): Released all slaves IPv6: ADDRCONF(NETDEV_UP): bond906: link is not ready 8021q: adding VLAN 0 to HW filter on device bond906 8021q: adding VLAN 0 to HW filter on device team841 bond906: Enslaving team841 as an active interface with an up link bond906: Releasing backup interface team841 nla_parse: 79 callbacks suppressed netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. bond11 (uninitialized): Released all slaves netlink: 4 bytes leftover after parsing attributes in process `syz-executor.4'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.0'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.5'. bond11 (uninitialized): Released all slaves netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor.2'.