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 6.13.0-rc6-syzkaller-00290-gbe548645527a #0 Not tainted ------------------------------------------------------ syz.1.606/7606 is trying to acquire lock: ffff88802641ced8 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1623 [inline] ffff88802641ced8 (sk_lock-AF_INET){+.+.}-{0:0}, at: sock_set_reuseaddr+0x17/0x60 net/core/sock.c:781 but task is already holding lock: ffffffff8fb51bc8 (lock#8){+.+.}-{4:4}, at: cma_add_one+0x674/0xdd0 drivers/infiniband/core/cma.c:5370 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #3 (lock#8){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735 cma_init+0x1d/0x150 drivers/infiniband/core/cma.c:5454 do_one_initcall+0x128/0x700 init/main.c:1266 do_initcall_level init/main.c:1328 [inline] do_initcalls init/main.c:1344 [inline] do_basic_setup init/main.c:1363 [inline] kernel_init_freeable+0x5c7/0x900 init/main.c:1577 kernel_init+0x1c/0x2b0 init/main.c:1466 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 -> #2 (rtnl_mutex){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735 do_ipv6_setsockopt+0x2158/0x4520 net/ipv6/ipv6_sockglue.c:566 ipv6_setsockopt+0xcb/0x170 net/ipv6/ipv6_sockglue.c:993 tcp_setsockopt+0xa4/0x100 net/ipv4/tcp.c:4030 smc_setsockopt+0x1b4/0xa00 net/smc/af_smc.c:3078 do_sock_setsockopt+0x222/0x480 net/socket.c:2313 __sys_setsockopt+0x1a0/0x230 net/socket.c:2338 __do_sys_setsockopt net/socket.c:2344 [inline] __se_sys_setsockopt net/socket.c:2341 [inline] __x64_sys_setsockopt+0xbd/0x160 net/socket.c:2341 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #1 (&smc->clcsock_release_lock){+.+.}-{4:4}: __mutex_lock_common kernel/locking/mutex.c:585 [inline] __mutex_lock+0x19b/0xa60 kernel/locking/mutex.c:735 smc_switch_to_fallback+0x2d/0xa00 net/smc/af_smc.c:903 smc_sendmsg+0x13d/0x520 net/smc/af_smc.c:2778 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] __sys_sendto+0x488/0x4f0 net/socket.c:2197 __do_sys_sendto net/socket.c:2204 [inline] __se_sys_sendto net/socket.c:2200 [inline] __x64_sys_sendto+0xe0/0x1c0 net/socket.c:2200 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f -> #0 (sk_lock-AF_INET){+.+.}-{0:0}: check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 lock_sock_nested+0x3a/0xf0 net/core/sock.c:3625 lock_sock include/net/sock.h:1623 [inline] sock_set_reuseaddr+0x17/0x60 net/core/sock.c:781 siw_create_listen+0xa07/0x1370 drivers/infiniband/sw/siw/siw_cm.c:1777 iw_cm_listen+0x16a/0x1f0 drivers/infiniband/core/iwcm.c:585 cma_iw_listen drivers/infiniband/core/cma.c:2684 [inline] rdma_listen+0x7ef/0xe30 drivers/infiniband/core/cma.c:3969 cma_listen_on_dev+0x4dc/0x810 drivers/infiniband/core/cma.c:2743 cma_add_one+0x78b/0xdd0 drivers/infiniband/core/cma.c:5373 add_client_context+0x3dd/0x590 drivers/infiniband/core/device.c:728 enable_device_and_get+0x1d5/0x3f0 drivers/infiniband/core/device.c:1339 ib_register_device drivers/infiniband/core/device.c:1450 [inline] ib_register_device+0x880/0xdf0 drivers/infiniband/core/device.c:1396 siw_device_register drivers/infiniband/sw/siw/siw_main.c:72 [inline] siw_newlink drivers/infiniband/sw/siw/siw_main.c:439 [inline] siw_newlink+0xb60/0xd70 drivers/infiniband/sw/siw/siw_main.c:421 nldev_newlink+0x38e/0x660 drivers/infiniband/core/nldev.c:1795 rdma_nl_rcv_msg+0x388/0x6e0 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb.constprop.0.isra.0+0x2e6/0x450 drivers/infiniband/core/netlink.c:239 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2583 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2637 __sys_sendmsg+0x16e/0x220 net/socket.c:2669 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 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_INET --> rtnl_mutex --> lock#8 Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(lock#8); lock(rtnl_mutex); lock(lock#8); lock(sk_lock-AF_INET); *** DEADLOCK *** 6 locks held by syz.1.606/7606: #0: ffffffff9ab9e458 (&rdma_nl_types[idx].sem){.+.+}-{4:4}, at: rdma_nl_rcv_msg+0x16a/0x6e0 drivers/infiniband/core/netlink.c:164 #1: ffffffff8fb394d0 (link_ops_rwsem){++++}-{4:4}, at: nldev_newlink+0x2d3/0x660 drivers/infiniband/core/nldev.c:1785 #2: ffffffff8fb25930 (devices_rwsem){++++}-{4:4}, at: enable_device_and_get+0x104/0x3f0 drivers/infiniband/core/device.c:1329 #3: ffffffff8fb257f0 (clients_rwsem){++++}-{4:4}, at: enable_device_and_get+0x163/0x3f0 drivers/infiniband/core/device.c:1337 #4: ffff88805b6c45d8 (&device->client_data_rwsem){++++}-{4:4}, at: add_client_context+0x3a9/0x590 drivers/infiniband/core/device.c:726 #5: ffffffff8fb51bc8 (lock#8){+.+.}-{4:4}, at: cma_add_one+0x674/0xdd0 drivers/infiniband/core/cma.c:5370 stack backtrace: CPU: 2 UID: 0 PID: 7606 Comm: syz.1.606 Not tainted 6.13.0-rc6-syzkaller-00290-gbe548645527a #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Call Trace: __dump_stack lib/dump_stack.c:94 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:120 print_circular_bug+0x419/0x5d0 kernel/locking/lockdep.c:2074 check_noncircular+0x31a/0x400 kernel/locking/lockdep.c:2206 check_prev_add kernel/locking/lockdep.c:3161 [inline] check_prevs_add kernel/locking/lockdep.c:3280 [inline] validate_chain kernel/locking/lockdep.c:3904 [inline] __lock_acquire+0x249e/0x3c40 kernel/locking/lockdep.c:5226 lock_acquire.part.0+0x11b/0x380 kernel/locking/lockdep.c:5849 lock_sock_nested+0x3a/0xf0 net/core/sock.c:3625 lock_sock include/net/sock.h:1623 [inline] sock_set_reuseaddr+0x17/0x60 net/core/sock.c:781 siw_create_listen+0xa07/0x1370 drivers/infiniband/sw/siw/siw_cm.c:1777 iw_cm_listen+0x16a/0x1f0 drivers/infiniband/core/iwcm.c:585 cma_iw_listen drivers/infiniband/core/cma.c:2684 [inline] rdma_listen+0x7ef/0xe30 drivers/infiniband/core/cma.c:3969 cma_listen_on_dev+0x4dc/0x810 drivers/infiniband/core/cma.c:2743 cma_add_one+0x78b/0xdd0 drivers/infiniband/core/cma.c:5373 add_client_context+0x3dd/0x590 drivers/infiniband/core/device.c:728 enable_device_and_get+0x1d5/0x3f0 drivers/infiniband/core/device.c:1339 ib_register_device drivers/infiniband/core/device.c:1450 [inline] ib_register_device+0x880/0xdf0 drivers/infiniband/core/device.c:1396 siw_device_register drivers/infiniband/sw/siw/siw_main.c:72 [inline] siw_newlink drivers/infiniband/sw/siw/siw_main.c:439 [inline] siw_newlink+0xb60/0xd70 drivers/infiniband/sw/siw/siw_main.c:421 nldev_newlink+0x38e/0x660 drivers/infiniband/core/nldev.c:1795 rdma_nl_rcv_msg+0x388/0x6e0 drivers/infiniband/core/netlink.c:195 rdma_nl_rcv_skb.constprop.0.isra.0+0x2e6/0x450 drivers/infiniband/core/netlink.c:239 netlink_unicast_kernel net/netlink/af_netlink.c:1321 [inline] netlink_unicast+0x53c/0x7f0 net/netlink/af_netlink.c:1347 netlink_sendmsg+0x8b8/0xd70 net/netlink/af_netlink.c:1891 sock_sendmsg_nosec net/socket.c:711 [inline] __sock_sendmsg net/socket.c:726 [inline] ____sys_sendmsg+0xaaf/0xc90 net/socket.c:2583 ___sys_sendmsg+0x135/0x1e0 net/socket.c:2637 __sys_sendmsg+0x16e/0x220 net/socket.c:2669 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8dd4b85d29 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:00007f8dd5950038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f8dd4d75fa0 RCX: 00007f8dd4b85d29 RDX: 0000000000000810 RSI: 0000000020000240 RDI: 0000000000000005 RBP: 00007f8dd4c01b08 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f8dd4d75fa0 R15: 00007ffefea64da8 infiniband syz2: RDMA CMA: cma_listen_on_dev, error -98 »»»»»» speed is unknown, defaulting to 1000 »»»»»» speed is unknown, defaulting to 1000 »»»»»» speed is unknown, defaulting to 1000 »»»»»» speed is unknown, defaulting to 1000