iwpm_register_pid: Unable to send a nlmsg (client = 2)
infiniband syz1: RDMA CMA: cma_listen_on_dev, error -19
======================================================
WARNING: possible circular locking dependency detected
5.6.0-rc2-syzkaller #0 Not tainted
------------------------------------------------------
syz-executor.4/18573 is trying to acquire lock:
ffffffff8a74d740 (rtnl_mutex){+.+.}, at: rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
but task is already holding lock:
ffffffff8a5d27a0 (lock#3){+.+.}, at: cma_add_one+0x62f/0xbf0 drivers/infiniband/core/cma.c:4663
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #1 (lock#3){+.+.}:
__mutex_lock_common kernel/locking/mutex.c:956 [inline]
__mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
cma_netdev_callback+0xc6/0x380 drivers/infiniband/core/cma.c:4605
notifier_call_chain+0xc2/0x230 kernel/notifier.c:83
__raw_notifier_call_chain kernel/notifier.c:361 [inline]
raw_notifier_call_chain+0x2e/0x40 kernel/notifier.c:368
call_netdevice_notifiers_info net/core/dev.c:1948 [inline]
call_netdevice_notifiers_info+0xba/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+0x8a8/0x2050 drivers/net/bonding/bond_main.c:944
bond_select_active_slave+0x276/0xae0 drivers/net/bonding/bond_main.c:986
bond_enslave+0x44ef/0x4af0 drivers/net/bonding/bond_main.c:1823
do_set_master net/core/rtnetlink.c:2468 [inline]
do_set_master+0x1dd/0x240 net/core/rtnetlink.c:2441
__rtnl_newlink+0x13a3/0x1790 net/core/rtnetlink.c:3346
rtnl_newlink+0x69/0xa0 net/core/rtnetlink.c:3377
rtnetlink_rcv_msg+0x45e/0xaf0 net/core/rtnetlink.c:5440
netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2478
rtnetlink_rcv+0x1d/0x30 net/core/rtnetlink.c:5458
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:672
____sys_sendmsg+0x753/0x880 net/socket.c:2343
___sys_sendmsg+0x100/0x170 net/socket.c:2397
__sys_sendmsg+0x105/0x1d0 net/socket.c:2430
__do_sys_sendmsg net/socket.c:2439 [inline]
__se_sys_sendmsg net/socket.c:2437 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
-> #0 (rtnl_mutex){+.+.}:
check_prev_add kernel/locking/lockdep.c:2475 [inline]
check_prevs_add kernel/locking/lockdep.c:2580 [inline]
validate_chain kernel/locking/lockdep.c:2970 [inline]
__lock_acquire+0x2596/0x4a00 kernel/locking/lockdep.c:3954
lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4484
__mutex_lock_common kernel/locking/mutex.c:956 [inline]
__mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
siw_create_listen+0x9c8/0xed0 drivers/infiniband/sw/siw/siw_cm.c:1977
iw_cm_listen+0x16e/0x1f0 drivers/infiniband/core/iwcm.c:582
cma_iw_listen drivers/infiniband/core/cma.c:2450 [inline]
rdma_listen+0x613/0x970 drivers/infiniband/core/cma.c:3614
cma_listen_on_dev+0x530/0x6a0 drivers/infiniband/core/cma.c:2501
cma_add_one+0x6fe/0xbf0 drivers/infiniband/core/cma.c:4666
add_client_context+0x3dd/0x550 drivers/infiniband/core/device.c:681
enable_device_and_get+0x1df/0x3c0 drivers/infiniband/core/device.c:1316
ib_register_device drivers/infiniband/core/device.c:1382 [inline]
ib_register_device+0xa89/0xe40 drivers/infiniband/core/device.c:1343
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+0xdef/0x1310 drivers/infiniband/sw/siw/siw_main.c:542
nldev_newlink+0x28a/0x430 drivers/infiniband/core/nldev.c:1538
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+0x5d9/0x980 drivers/infiniband/core/netlink.c:259
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:672
____sys_sendmsg+0x753/0x880 net/socket.c:2343
___sys_sendmsg+0x100/0x170 net/socket.c:2397
__sys_sendmsg+0x105/0x1d0 net/socket.c:2430
__do_sys_sendmsg net/socket.c:2439 [inline]
__se_sys_sendmsg net/socket.c:2437 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(lock#3);
lock(rtnl_mutex);
lock(lock#3);
lock(rtnl_mutex);
*** DEADLOCK ***
6 locks held by syz-executor.4/18573:
#0: ffffffff8c3d4640 (&rdma_nl_types[idx].sem){.+.+}, at: rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:164 [inline]
#0: ffffffff8c3d4640 (&rdma_nl_types[idx].sem){.+.+}, at: rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
#0: ffffffff8c3d4640 (&rdma_nl_types[idx].sem){.+.+}, at: rdma_nl_rcv+0x411/0x980 drivers/infiniband/core/netlink.c:259
#1: ffffffff8a5c8168 (link_ops_rwsem){++++}, at: nldev_newlink+0x248/0x430 drivers/infiniband/core/nldev.c:1528
#2: ffffffff8a5bbc88 (devices_rwsem){++++}, at: enable_device_and_get+0x110/0x3c0 drivers/infiniband/core/device.c:1306
#3: ffffffff8a5bbb48 (clients_rwsem){++++}, at: enable_device_and_get+0x173/0x3c0 drivers/infiniband/core/device.c:1314
#4: ffff888094950538 (&device->client_data_rwsem){++++}, at: add_client_context+0x3ab/0x550 drivers/infiniband/core/device.c:679
#5: ffffffff8a5d27a0 (lock#3){+.+.}, at: cma_add_one+0x62f/0xbf0 drivers/infiniband/core/cma.c:4663
stack backtrace:
CPU: 1 PID: 18573 Comm: syz-executor.4 Not tainted 5.6.0-rc2-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+0x197/0x210 lib/dump_stack.c:118
print_circular_bug.isra.0.cold+0x163/0x172 kernel/locking/lockdep.c:1684
check_noncircular+0x32e/0x3e0 kernel/locking/lockdep.c:1808
check_prev_add kernel/locking/lockdep.c:2475 [inline]
check_prevs_add kernel/locking/lockdep.c:2580 [inline]
validate_chain kernel/locking/lockdep.c:2970 [inline]
__lock_acquire+0x2596/0x4a00 kernel/locking/lockdep.c:3954
lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4484
__mutex_lock_common kernel/locking/mutex.c:956 [inline]
__mutex_lock+0x156/0x13c0 kernel/locking/mutex.c:1103
mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:1118
rtnl_lock+0x17/0x20 net/core/rtnetlink.c:72
siw_create_listen+0x9c8/0xed0 drivers/infiniband/sw/siw/siw_cm.c:1977
iw_cm_listen+0x16e/0x1f0 drivers/infiniband/core/iwcm.c:582
cma_iw_listen drivers/infiniband/core/cma.c:2450 [inline]
rdma_listen+0x613/0x970 drivers/infiniband/core/cma.c:3614
cma_listen_on_dev+0x530/0x6a0 drivers/infiniband/core/cma.c:2501
cma_add_one+0x6fe/0xbf0 drivers/infiniband/core/cma.c:4666
add_client_context+0x3dd/0x550 drivers/infiniband/core/device.c:681
enable_device_and_get+0x1df/0x3c0 drivers/infiniband/core/device.c:1316
ib_register_device drivers/infiniband/core/device.c:1382 [inline]
ib_register_device+0xa89/0xe40 drivers/infiniband/core/device.c:1343
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+0xdef/0x1310 drivers/infiniband/sw/siw/siw_main.c:542
nldev_newlink+0x28a/0x430 drivers/infiniband/core/nldev.c:1538
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+0x5d9/0x980 drivers/infiniband/core/netlink.c:259
netlink_unicast_kernel net/netlink/af_netlink.c:1303 [inline]
netlink_unicast+0x59e/0x7e0 net/netlink/af_netlink.c:1329
netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1918
sock_sendmsg_nosec net/socket.c:652 [inline]
sock_sendmsg+0xd7/0x130 net/socket.c:672
____sys_sendmsg+0x753/0x880 net/socket.c:2343
___sys_sendmsg+0x100/0x170 net/socket.c:2397
__sys_sendmsg+0x105/0x1d0 net/socket.c:2430
__do_sys_sendmsg net/socket.c:2439 [inline]
__se_sys_sendmsg net/socket.c:2437 [inline]
__x64_sys_sendmsg+0x78/0xb0 net/socket.c:2437
do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c479
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:00007fb302dbdc78 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007fb302dbe6d4 RCX: 000000000045c479
RDX: 0000000000000000 RSI: 00000000200031c0 RDI: 0000000000000003
RBP: 000000000076bf20 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 00000000000009a3 R14: 00000000004d56e8 R15: 000000000076bf2c
infiniband syz1: RDMA CMA: cma_listen_on_dev, error -22