lo speed is unknown, defaulting to 1000
lo speed is unknown, defaulting to 1000
lo speed is unknown, defaulting to 1000
iwpm_register_pid: Unable to send a nlmsg (client = 2)
======================================================
WARNING: possible circular locking dependency detected
6.14.0-rc1-syzkaller-00187-g7bca2b2d5fcc #0 Not tainted
------------------------------------------------------
syz.4.1085/8299 is trying to acquire lock:
ffff8880260d3858 (sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1624 [inline]
ffff8880260d3858 (sk_lock-AF_INET6){+.+.}-{0:0}, at: sock_set_reuseaddr+0x17/0x60 net/core/sock.c:788
but task is already holding lock:
ffffffff8fa5a368 (lock#7){+.+.}-{4:4}, at: cma_add_one+0x6bc/0xcd0 drivers/infiniband/core/cma.c:5370
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #3 (lock#7){+.+.}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730
cma_init+0x1e/0x140 drivers/infiniband/core/cma.c:5454
do_one_initcall+0x248/0x870 init/main.c:1257
do_initcall_level+0x157/0x210 init/main.c:1319
do_initcalls+0x3f/0x80 init/main.c:1335
kernel_init_freeable+0x435/0x5d0 init/main.c:1568
kernel_init+0x1d/0x2b0 init/main.c:1457
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
-> #2 (rtnl_mutex){+.+.}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730
start_sync_thread+0xdc/0x2dc0 net/netfilter/ipvs/ip_vs_sync.c:1761
do_ip_vs_set_ctl+0x442/0x13d0 net/netfilter/ipvs/ip_vs_ctl.c:2732
nf_setsockopt+0x295/0x2c0 net/netfilter/nf_sockopt.c:101
smc_setsockopt+0x275/0xe50 net/smc/af_smc.c:3081
do_sock_setsockopt+0x3af/0x720 net/socket.c:2298
__sys_setsockopt net/socket.c:2323 [inline]
__do_sys_setsockopt net/socket.c:2329 [inline]
__se_sys_setsockopt net/socket.c:2326 [inline]
__x64_sys_setsockopt+0x1ee/0x280 net/socket.c:2326
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #1 (&smc->clcsock_release_lock){+.+.}-{4:4}:
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
__mutex_lock_common kernel/locking/mutex.c:585 [inline]
__mutex_lock+0x19c/0x1010 kernel/locking/mutex.c:730
smc_switch_to_fallback+0x35/0xd90 net/smc/af_smc.c:903
smc_sendmsg+0x11f/0x530 net/smc/af_smc.c:2781
sock_sendmsg_nosec net/socket.c:713 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:728
__sys_sendto+0x363/0x4c0 net/socket.c:2182
__do_sys_sendto net/socket.c:2189 [inline]
__se_sys_sendto net/socket.c:2185 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2185
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
-> #0 (sk_lock-AF_INET6){+.+.}-{0:0}:
check_prev_add kernel/locking/lockdep.c:3163 [inline]
check_prevs_add kernel/locking/lockdep.c:3282 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
lock_sock_nested+0x48/0x100 net/core/sock.c:3645
lock_sock include/net/sock.h:1624 [inline]
sock_set_reuseaddr+0x17/0x60 net/core/sock.c:788
siw_create_listen+0x19d/0x11d0 drivers/infiniband/sw/siw/siw_cm.c:1777
iw_cm_listen+0x15e/0x230 drivers/infiniband/core/iwcm.c:585
cma_iw_listen drivers/infiniband/core/cma.c:2684 [inline]
rdma_listen+0x941/0xd60 drivers/infiniband/core/cma.c:3969
cma_listen_on_dev+0x3e3/0x6f0 drivers/infiniband/core/cma.c:2743
cma_add_one+0x7d7/0xcd0 drivers/infiniband/core/cma.c:5373
add_client_context+0x536/0x8b0 drivers/infiniband/core/device.c:711
enable_device_and_get+0x1e6/0x440 drivers/infiniband/core/device.c:1322
ib_register_device+0x10d4/0x13e0 drivers/infiniband/core/device.c:1433
siw_device_register drivers/infiniband/sw/siw/siw_main.c:72 [inline]
siw_newlink+0x905/0xd60 drivers/infiniband/sw/siw/siw_main.c:431
nldev_newlink+0x5c0/0x640 drivers/infiniband/core/nldev.c:1795
rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
rdma_nl_rcv+0x6dd/0x9e0 drivers/infiniband/core/netlink.c:259
netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1892
sock_sendmsg_nosec net/socket.c:713 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:728
____sys_sendmsg+0x52a/0x7e0 net/socket.c:2568
___sys_sendmsg net/socket.c:2622 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2654
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
other info that might help us debug this:
Chain exists of:
sk_lock-AF_INET6 --> rtnl_mutex --> lock#7
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(lock#7);
lock(rtnl_mutex);
lock(lock#7);
lock(sk_lock-AF_INET6);
*** DEADLOCK ***
6 locks held by syz.4.1085/8299:
#0: ffffffff9a7bea38 (&rdma_nl_types[idx].sem){.+.+}-{4:4}, at: rdma_nl_rcv_msg drivers/infiniband/core/netlink.c:164 [inline]
#0: ffffffff9a7bea38 (&rdma_nl_types[idx].sem){.+.+}-{4:4}, at: rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
#0: ffffffff9a7bea38 (&rdma_nl_types[idx].sem){.+.+}-{4:4}, at: rdma_nl_rcv+0x32d/0x9e0 drivers/infiniband/core/netlink.c:259
#1: ffffffff8fa46530 (link_ops_rwsem){++++}-{4:4}, at: nldev_newlink+0x42a/0x640 drivers/infiniband/core/nldev.c:1785
#2: ffffffff8fa39290 (devices_rwsem){++++}-{4:4}, at: enable_device_and_get+0x12e/0x440 drivers/infiniband/core/device.c:1312
#3: ffffffff8fa39590 (clients_rwsem){++++}-{4:4}, at: enable_device_and_get+0x196/0x440 drivers/infiniband/core/device.c:1320
#4: ffff8880314ac5e0 (&device->client_data_rwsem){++++}-{4:4}, at: add_client_context+0x4f4/0x8b0 drivers/infiniband/core/device.c:709
#5: ffffffff8fa5a368 (lock#7){+.+.}-{4:4}, at: cma_add_one+0x6bc/0xcd0 drivers/infiniband/core/cma.c:5370
stack backtrace:
CPU: 0 UID: 0 PID: 8299 Comm: syz.4.1085 Not tainted 6.14.0-rc1-syzkaller-00187-g7bca2b2d5fcc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
print_circular_bug+0x13a/0x1b0 kernel/locking/lockdep.c:2076
check_noncircular+0x36a/0x4a0 kernel/locking/lockdep.c:2208
check_prev_add kernel/locking/lockdep.c:3163 [inline]
check_prevs_add kernel/locking/lockdep.c:3282 [inline]
validate_chain+0x18ef/0x5920 kernel/locking/lockdep.c:3906
__lock_acquire+0x1397/0x2100 kernel/locking/lockdep.c:5228
lock_acquire+0x1ed/0x550 kernel/locking/lockdep.c:5851
lock_sock_nested+0x48/0x100 net/core/sock.c:3645
lock_sock include/net/sock.h:1624 [inline]
sock_set_reuseaddr+0x17/0x60 net/core/sock.c:788
siw_create_listen+0x19d/0x11d0 drivers/infiniband/sw/siw/siw_cm.c:1777
iw_cm_listen+0x15e/0x230 drivers/infiniband/core/iwcm.c:585
cma_iw_listen drivers/infiniband/core/cma.c:2684 [inline]
rdma_listen+0x941/0xd60 drivers/infiniband/core/cma.c:3969
cma_listen_on_dev+0x3e3/0x6f0 drivers/infiniband/core/cma.c:2743
cma_add_one+0x7d7/0xcd0 drivers/infiniband/core/cma.c:5373
add_client_context+0x536/0x8b0 drivers/infiniband/core/device.c:711
enable_device_and_get+0x1e6/0x440 drivers/infiniband/core/device.c:1322
ib_register_device+0x10d4/0x13e0 drivers/infiniband/core/device.c:1433
siw_device_register drivers/infiniband/sw/siw/siw_main.c:72 [inline]
siw_newlink+0x905/0xd60 drivers/infiniband/sw/siw/siw_main.c:431
nldev_newlink+0x5c0/0x640 drivers/infiniband/core/nldev.c:1795
rdma_nl_rcv_skb drivers/infiniband/core/netlink.c:239 [inline]
rdma_nl_rcv+0x6dd/0x9e0 drivers/infiniband/core/netlink.c:259
netlink_unicast_kernel net/netlink/af_netlink.c:1322 [inline]
netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1348
netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1892
sock_sendmsg_nosec net/socket.c:713 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:728
____sys_sendmsg+0x52a/0x7e0 net/socket.c:2568
___sys_sendmsg net/socket.c:2622 [inline]
__sys_sendmsg+0x269/0x350 net/socket.c:2654
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f794fd8cde9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7950bcd038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f794ffa5fa0 RCX: 00007f794fd8cde9
RDX: 0000000000000000 RSI: 0000400000000300 RDI: 0000000000000003
RBP: 00007f794fe0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f794ffa5fa0 R15: 00007ffdaebfaa58
</TASK>
infiniband syz0: RDMA CMA: cma_listen_on_dev, error -98
lo speed is unknown, defaulting to 1000
lo speed is unknown, defaulting to 1000
lo speed is unknown, defaulting to 1000
lo speed is unknown, defaulting to 1000
lo speed is unknown, defaulting to 1000