bond6: (slave veth97): making interface the new active one
======================================================
WARNING: possible circular locking dependency detected
5.6.0-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.4/4624 is trying to acquire lock:
ffffffff8a3ed028 (lock#3){+.+.}-{3:3}, at: cma_netdev_callback+0xc5/0x380 drivers/infiniband/core/cma.c:4612
but task is already holding lock:
ffffffff8a5668a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
ffffffff8a5668a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 net/core/rtnetlink.c:5451
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (rtnl_mutex){+.+.}-{3:3}:
__mutex_lock_common kernel/locking/mutex.c:956 [inline]
__mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103
siw_create_listen+0x329/0xed0 drivers/infiniband/sw/siw/siw_cm.c:1951
iw_cm_listen+0x166/0x1e0 drivers/infiniband/core/iwcm.c:584
cma_iw_listen drivers/infiniband/core/cma.c:2450 [inline]
rdma_listen+0x5e2/0x910 drivers/infiniband/core/cma.c:3621
cma_listen_on_dev+0x512/0x650 drivers/infiniband/core/cma.c:2501
cma_add_one+0x6b0/0xb70 drivers/infiniband/core/cma.c:4673
add_client_context+0x3b4/0x520 drivers/infiniband/core/device.c:681
enable_device_and_get+0x1cd/0x3b0 drivers/infiniband/core/device.c:1318
ib_register_device drivers/infiniband/core/device.c:1384 [inline]
ib_register_device+0xa12/0xda0 drivers/infiniband/core/device.c:1345
siw_device_register drivers/infiniband/sw/siw/siw_main.c:70 [inline]
siw_newlink drivers/infiniband/sw/siw/siw_main.c:565 [inline]
siw_newlink+0xdfe/0x1320 drivers/infiniband/sw/siw/siw_main.c:542
nldev_newlink+0x29e/0x420 drivers/infiniband/core/nldev.c:1542
rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:195 [inline]
rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
rdma_nl_rcv+0x586/0x900 drivers/infiniband/core/netlink.c:259
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:672
____sys_sendmsg+0x6bf/0x7e0 net/socket.c:2362
___sys_sendmsg+0x100/0x170 net/socket.c:2416
__sys_sendmsg+0xec/0x1b0 net/socket.c:2449
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
-> #0 (lock#3){+.+.}-{3:3}:
check_prev_add kernel/locking/lockdep.c:2515 [inline]
check_prevs_add kernel/locking/lockdep.c:2620 [inline]
validate_chain kernel/locking/lockdep.c:3237 [inline]
__lock_acquire+0x2c21/0x4e00 kernel/locking/lockdep.c:4344
lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4923
__mutex_lock_common kernel/locking/mutex.c:956 [inline]
__mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103
cma_netdev_callback+0xc5/0x380 drivers/infiniband/core/cma.c:4612
notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
call_netdevice_notifiers_info net/core/dev.c:1948 [inline]
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933
call_netdevice_notifiers_extack net/core/dev.c:1960 [inline]
call_netdevice_notifiers+0x79/0xa0 net/core/dev.c:1974
bond_change_active_slave+0x80e/0x1d90 drivers/net/bonding/bond_main.c:944
bond_select_active_slave+0x250/0xa60 drivers/net/bonding/bond_main.c:986
bond_enslave+0x4287/0x4800 drivers/net/bonding/bond_main.c:1823
do_set_master net/core/rtnetlink.c:2470 [inline]
do_set_master+0x1d7/0x230 net/core/rtnetlink.c:2443
__rtnl_newlink+0x11d4/0x1590 net/core/rtnetlink.c:3360
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3391
rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5454
netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:672
____sys_sendmsg+0x6bf/0x7e0 net/socket.c:2362
___sys_sendmsg+0x100/0x170 net/socket.c:2416
__sys_sendmsg+0xec/0x1b0 net/socket.c:2449
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(rtnl_mutex);
lock(lock#3);
lock(rtnl_mutex);
lock(lock#3);
*** DEADLOCK ***
1 lock held by syz-executor.4/4624:
#0: ffffffff8a5668a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:72 [inline]
#0: ffffffff8a5668a8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3f9/0xad0 net/core/rtnetlink.c:5451
stack backtrace:
CPU: 0 PID: 4624 Comm: syz-executor.4 Not tainted 5.6.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:77 [inline]
dump_stack+0x188/0x20d lib/dump_stack.c:118
check_noncircular+0x32e/0x3e0 kernel/locking/lockdep.c:1846
check_prev_add kernel/locking/lockdep.c:2515 [inline]
check_prevs_add kernel/locking/lockdep.c:2620 [inline]
validate_chain kernel/locking/lockdep.c:3237 [inline]
__lock_acquire+0x2c21/0x4e00 kernel/locking/lockdep.c:4344
lock_acquire+0x1f2/0x8f0 kernel/locking/lockdep.c:4923
__mutex_lock_common kernel/locking/mutex.c:956 [inline]
__mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103
cma_netdev_callback+0xc5/0x380 drivers/infiniband/core/cma.c:4612
notifier_call_chain+0xc0/0x230 kernel/notifier.c:83
call_netdevice_notifiers_info net/core/dev.c:1948 [inline]
call_netdevice_notifiers_info+0xb5/0x130 net/core/dev.c:1933
call_netdevice_notifiers_extack net/core/dev.c:1960 [inline]
call_netdevice_notifiers+0x79/0xa0 net/core/dev.c:1974
bond_change_active_slave+0x80e/0x1d90 drivers/net/bonding/bond_main.c:944
bond_select_active_slave+0x250/0xa60 drivers/net/bonding/bond_main.c:986
bond_enslave+0x4287/0x4800 drivers/net/bonding/bond_main.c:1823
do_set_master net/core/rtnetlink.c:2470 [inline]
do_set_master+0x1d7/0x230 net/core/rtnetlink.c:2443
__rtnl_newlink+0x11d4/0x1590 net/core/rtnetlink.c:3360
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3391
rtnetlink_rcv_msg+0x44e/0xad0 net/core/rtnetlink.c:5454
netlink_rcv_skb+0x15a/0x410 net/netlink/af_netlink.c:2469
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x537/0x740 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x882/0xe10 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:672
____sys_sendmsg+0x6bf/0x7e0 net/socket.c:2362
___sys_sendmsg+0x100/0x170 net/socket.c:2416
__sys_sendmsg+0xec/0x1b0 net/socket.c:2449
do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45c879
Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 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 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f0521a7dc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f0521a7e6d4 RCX: 000000000045c879
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 000000000076bfa0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000009fc R14: 00000000004ccb5c R15: 000000000076bfac
bond6: (slave veth97): Enslaving as an active interface with an up link