===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0 Not tainted ----------------------------------------------------- syz-executor.4/3266 [HC0[0]:SC0[4]:HE1:SE0] is trying to acquire: ffff88807b2557b8 (k-clock-AF_INET){+++.}-{2:2}, at: sock_i_uid+0x26/0xa0 net/core/sock.c:2542 and this task is already holding: ffffc90001618b88 (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline] ffffc90001618b88 (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2}, at: inet_csk_get_port+0x2b2/0x19e0 net/ipv4/inet_connection_sock.c:496 which would create a new lock dependency: (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2} -> (k-clock-AF_INET){+++.}-{2:2} but this new dependency connects a SOFTIRQ-irq-safe lock: (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2} ... which became SOFTIRQ-irq-safe at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:350 [inline] __inet_inherit_port+0x2cf/0x1900 net/ipv4/inet_hashtables.c:229 tcp_v4_syn_recv_sock+0x11ae/0x13c0 net/ipv4/tcp_ipv4.c:1588 tcp_check_req+0xf84/0x1950 net/ipv4/tcp_minisocks.c:786 tcp_v4_rcv+0x1f5c/0x32e0 net/ipv4/tcp_ipv4.c:2030 ip_protocol_deliver_rcu+0x38d/0x750 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x269/0x480 net/ipv4/ip_input.c:233 dst_input include/net/dst.h:455 [inline] ip_sublist_rcv_finish net/ipv4/ip_input.c:575 [inline] ip_list_rcv_finish net/ipv4/ip_input.c:625 [inline] ip_sublist_rcv+0xa8b/0xb70 net/ipv4/ip_input.c:633 ip_list_rcv+0x443/0x490 net/ipv4/ip_input.c:668 __netif_receive_skb_list_ptype net/core/dev.c:5532 [inline] __netif_receive_skb_list_core+0x71e/0x930 net/core/dev.c:5580 __netif_receive_skb_list+0x4b1/0x580 net/core/dev.c:5632 netif_receive_skb_list_internal+0x539/0x870 net/core/dev.c:5723 gro_normal_list include/net/gro.h:433 [inline] napi_complete_done+0x34d/0x820 net/core/dev.c:6064 virtqueue_napi_complete drivers/net/virtio_net.c:401 [inline] virtnet_poll+0xbd9/0x12a0 drivers/net/virtio_net.c:1678 __napi_poll+0xbe/0x4b0 net/core/dev.c:6498 napi_poll net/core/dev.c:6565 [inline] net_rx_action+0x76c/0x1100 net/core/dev.c:6676 __do_softirq+0x277/0x75b kernel/softirq.c:571 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:640 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline] acpi_idle_do_entry drivers/acpi/processor_idle.c:572 [inline] acpi_idle_enter+0x43d/0x800 drivers/acpi/processor_idle.c:709 cpuidle_enter_state+0x50b/0xf50 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3da/0x680 kernel/sched/idle.c:303 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400 rest_init+0x24f/0x270 init/main.c:729 start_kernel+0x0/0x560 init/main.c:890 start_kernel+0x4b1/0x560 init/main.c:1145 secondary_startup_64_no_verify+0xcf/0xdb to a SOFTIRQ-irq-unsafe lock: (k-clock-AF_INET){+++.}-{2:2} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2a/0x40 kernel/locking/spinlock.c:300 l2tp_tunnel_register+0x9e6/0x1ae0 net/l2tp/l2tp_core.c:1477 l2tp_nl_cmd_tunnel_create+0x718/0xb30 net/l2tp/l2tp_netlink.c:245 genl_family_rcv_msg_doit net/netlink/genetlink.c:756 [inline] genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0xc02/0xf60 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2540 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7e7/0x9c0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x9b3/0xcd0 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x597/0x8e0 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x28e/0x390 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd other info that might help us debug this: Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(k-clock-AF_INET); local_irq_disable(); lock(&tcp_hashinfo.bhash[i].lock); lock(k-clock-AF_INET); lock(&tcp_hashinfo.bhash[i].lock); *** DEADLOCK *** 3 locks held by syz-executor.4/3266: #0: ffff888095f18cb0 (sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888095f18cb0 (sk_lock-AF_INET){+.+.}-{0:0}, at: mptcp_bind+0x51/0x1b0 net/mptcp/protocol.c:3634 #1: ffff88807b255530 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #1: ffff88807b255530 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: __inet_bind+0x372/0xb90 net/ipv4/af_inet.c:511 #2: ffffc90001618b88 (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline] #2: ffffc90001618b88 (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2}, at: inet_csk_get_port+0x2b2/0x19e0 net/ipv4/inet_connection_sock.c:496 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2} { HARDIRQ-ON-W at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:355 [inline] inet_csk_get_port+0x2b2/0x19e0 net/ipv4/inet_connection_sock.c:496 __inet6_bind+0xac5/0x12d0 net/ipv6/af_inet6.c:412 inet6_bind+0x18d/0x250 net/ipv6/af_inet6.c:471 rds_tcp_listen_init+0x3b0/0x5c0 net/rds/tcp_listen.c:307 rds_tcp_init_net+0x137/0x310 net/rds/tcp.c:573 ops_init+0x353/0x5d0 net/core/net_namespace.c:135 __register_pernet_operations net/core/net_namespace.c:1153 [inline] register_pernet_operations+0x2af/0x620 net/core/net_namespace.c:1222 register_pernet_device+0x2f/0x80 net/core/net_namespace.c:1309 rds_tcp_init+0x5e/0xc1 net/rds/tcp.c:731 do_one_initcall+0xbd/0x2b0 init/main.c:1303 do_initcall_level+0x168/0x218 init/main.c:1376 do_initcalls+0x4b/0x8c init/main.c:1392 kernel_init_freeable+0x471/0x61d init/main.c:1631 kernel_init+0x19/0x2b0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 IN-SOFTIRQ-W at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:350 [inline] __inet_inherit_port+0x2cf/0x1900 net/ipv4/inet_hashtables.c:229 tcp_v4_syn_recv_sock+0x11ae/0x13c0 net/ipv4/tcp_ipv4.c:1588 tcp_check_req+0xf84/0x1950 net/ipv4/tcp_minisocks.c:786 tcp_v4_rcv+0x1f5c/0x32e0 net/ipv4/tcp_ipv4.c:2030 ip_protocol_deliver_rcu+0x38d/0x750 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x269/0x480 net/ipv4/ip_input.c:233 dst_input include/net/dst.h:455 [inline] ip_sublist_rcv_finish net/ipv4/ip_input.c:575 [inline] ip_list_rcv_finish net/ipv4/ip_input.c:625 [inline] ip_sublist_rcv+0xa8b/0xb70 net/ipv4/ip_input.c:633 ip_list_rcv+0x443/0x490 net/ipv4/ip_input.c:668 __netif_receive_skb_list_ptype net/core/dev.c:5532 [inline] __netif_receive_skb_list_core+0x71e/0x930 net/core/dev.c:5580 __netif_receive_skb_list+0x4b1/0x580 net/core/dev.c:5632 netif_receive_skb_list_internal+0x539/0x870 net/core/dev.c:5723 gro_normal_list include/net/gro.h:433 [inline] napi_complete_done+0x34d/0x820 net/core/dev.c:6064 virtqueue_napi_complete drivers/net/virtio_net.c:401 [inline] virtnet_poll+0xbd9/0x12a0 drivers/net/virtio_net.c:1678 __napi_poll+0xbe/0x4b0 net/core/dev.c:6498 napi_poll net/core/dev.c:6565 [inline] net_rx_action+0x76c/0x1100 net/core/dev.c:6676 __do_softirq+0x277/0x75b kernel/softirq.c:571 __irq_exit_rcu+0xec/0x170 kernel/softirq.c:650 irq_exit_rcu+0x5/0x20 kernel/softirq.c:662 common_interrupt+0xa4/0xc0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x22/0x40 arch/x86/include/asm/idtentry.h:640 native_safe_halt arch/x86/include/asm/irqflags.h:51 [inline] arch_safe_halt arch/x86/include/asm/irqflags.h:89 [inline] acpi_safe_halt drivers/acpi/processor_idle.c:112 [inline] acpi_idle_do_entry drivers/acpi/processor_idle.c:572 [inline] acpi_idle_enter+0x43d/0x800 drivers/acpi/processor_idle.c:709 cpuidle_enter_state+0x50b/0xf50 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x59/0x90 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3da/0x680 kernel/sched/idle.c:303 cpu_startup_entry+0x15/0x20 kernel/sched/idle.c:400 rest_init+0x24f/0x270 init/main.c:729 start_kernel+0x0/0x560 init/main.c:890 start_kernel+0x4b1/0x560 init/main.c:1145 secondary_startup_64_no_verify+0xcf/0xdb INITIAL USE at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x31/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:355 [inline] inet_csk_get_port+0x2b2/0x19e0 net/ipv4/inet_connection_sock.c:496 __inet6_bind+0xac5/0x12d0 net/ipv6/af_inet6.c:412 inet6_bind+0x18d/0x250 net/ipv6/af_inet6.c:471 rds_tcp_listen_init+0x3b0/0x5c0 net/rds/tcp_listen.c:307 rds_tcp_init_net+0x137/0x310 net/rds/tcp.c:573 ops_init+0x353/0x5d0 net/core/net_namespace.c:135 __register_pernet_operations net/core/net_namespace.c:1153 [inline] register_pernet_operations+0x2af/0x620 net/core/net_namespace.c:1222 register_pernet_device+0x2f/0x80 net/core/net_namespace.c:1309 rds_tcp_init+0x5e/0xc1 net/rds/tcp.c:731 do_one_initcall+0xbd/0x2b0 init/main.c:1303 do_initcall_level+0x168/0x218 init/main.c:1376 do_initcalls+0x4b/0x8c init/main.c:1392 kernel_init_freeable+0x471/0x61d init/main.c:1631 kernel_init+0x19/0x2b0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 } ... key at: [] tcp_init.__key.21+0x0/0x20 the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (k-clock-AF_INET){+++.}-{2:2} { HARDIRQ-ON-W at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_write_lock_bh include/linux/rwlock_api_smp.h:202 [inline] _raw_write_lock_bh+0x31/0x40 kernel/locking/spinlock.c:334 sock_orphan include/net/sock.h:2090 [inline] dccp_close+0xaad/0xfc0 net/dccp/proto.c:1039 inet_release+0x184/0x1e0 net/ipv4/af_inet.c:428 __sock_release net/socket.c:650 [inline] sock_release+0x7a/0x140 net/socket.c:678 ops_exit_list net/core/net_namespace.c:169 [inline] cleanup_net+0x758/0xc50 net/core/net_namespace.c:601 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 HARDIRQ-ON-R at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x39/0x50 kernel/locking/spinlock.c:252 sock_i_uid+0x26/0xa0 net/core/sock.c:2542 udp_lib_lport_inuse+0x39/0x570 net/ipv4/udp.c:140 udp_lib_get_port+0x87b/0x1c30 net/ipv4/udp.c:306 __inet_bind+0x5d0/0xb90 net/ipv4/af_inet.c:525 inet_bind+0x186/0x220 net/ipv4/af_inet.c:456 udp_sock_create4+0x260/0x660 net/ipv4/udp_tunnel_core.c:30 udp_sock_create include/net/udp_tunnel.h:59 [inline] rxe_setup_udp_tunnel drivers/infiniband/sw/rxe/rxe_net.c:186 [inline] rxe_net_ipv4_init drivers/infiniband/sw/rxe/rxe_net.c:622 [inline] rxe_net_init+0x13c/0x580 drivers/infiniband/sw/rxe/rxe_net.c:667 rxe_module_init+0xb/0x44 drivers/infiniband/sw/rxe/rxe.c:213 do_one_initcall+0xbd/0x2b0 init/main.c:1303 do_initcall_level+0x168/0x218 init/main.c:1376 do_initcalls+0x4b/0x8c init/main.c:1392 kernel_init_freeable+0x471/0x61d init/main.c:1631 kernel_init+0x19/0x2b0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 SOFTIRQ-ON-W at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2a/0x40 kernel/locking/spinlock.c:300 l2tp_tunnel_register+0x9e6/0x1ae0 net/l2tp/l2tp_core.c:1477 l2tp_nl_cmd_tunnel_create+0x718/0xb30 net/l2tp/l2tp_netlink.c:245 genl_family_rcv_msg_doit net/netlink/genetlink.c:756 [inline] genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0xc02/0xf60 net/netlink/genetlink.c:850 netlink_rcv_skb+0x1f0/0x460 net/netlink/af_netlink.c:2540 genl_rcv+0x24/0x40 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x7e7/0x9c0 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x9b3/0xcd0 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] ____sys_sendmsg+0x597/0x8e0 net/socket.c:2482 ___sys_sendmsg net/socket.c:2536 [inline] __sys_sendmsg+0x28e/0x390 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd INITIAL USE at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_write_lock_bh include/linux/rwlock_api_smp.h:202 [inline] _raw_write_lock_bh+0x31/0x40 kernel/locking/spinlock.c:334 sock_orphan include/net/sock.h:2090 [inline] dccp_close+0xaad/0xfc0 net/dccp/proto.c:1039 inet_release+0x184/0x1e0 net/ipv4/af_inet.c:428 __sock_release net/socket.c:650 [inline] sock_release+0x7a/0x140 net/socket.c:678 ops_exit_list net/core/net_namespace.c:169 [inline] cleanup_net+0x758/0xc50 net/core/net_namespace.c:601 process_one_work+0x81c/0xd10 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 INITIAL READ USE at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x39/0x50 kernel/locking/spinlock.c:252 sock_i_uid+0x26/0xa0 net/core/sock.c:2542 udp_lib_lport_inuse+0x39/0x570 net/ipv4/udp.c:140 udp_lib_get_port+0x87b/0x1c30 net/ipv4/udp.c:306 __inet_bind+0x5d0/0xb90 net/ipv4/af_inet.c:525 inet_bind+0x186/0x220 net/ipv4/af_inet.c:456 udp_sock_create4+0x260/0x660 net/ipv4/udp_tunnel_core.c:30 udp_sock_create include/net/udp_tunnel.h:59 [inline] rxe_setup_udp_tunnel drivers/infiniband/sw/rxe/rxe_net.c:186 [inline] rxe_net_ipv4_init drivers/infiniband/sw/rxe/rxe_net.c:622 [inline] rxe_net_init+0x13c/0x580 drivers/infiniband/sw/rxe/rxe_net.c:667 rxe_module_init+0xb/0x44 drivers/infiniband/sw/rxe/rxe.c:213 do_one_initcall+0xbd/0x2b0 init/main.c:1303 do_initcall_level+0x168/0x218 init/main.c:1376 do_initcalls+0x4b/0x8c init/main.c:1392 kernel_init_freeable+0x471/0x61d init/main.c:1631 kernel_init+0x19/0x2b0 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 } ... key at: [] af_kern_callback_keys+0x20/0x380 ... acquired at: lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x39/0x50 kernel/locking/spinlock.c:252 sock_i_uid+0x26/0xa0 net/core/sock.c:2542 inet_bhash2_addr_any_conflict+0x38/0x4b0 net/ipv4/inet_connection_sock.c:248 inet_csk_get_port+0x125c/0x19e0 net/ipv4/inet_connection_sock.c:519 __inet_bind+0x5d0/0xb90 net/ipv4/af_inet.c:525 inet_bind+0x186/0x220 net/ipv4/af_inet.c:456 mptcp_bind+0x121/0x1b0 net/mptcp/protocol.c:3641 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd stack backtrace: CPU: 1 PID: 3266 Comm: syz-executor.4 Not tainted 6.1.0-rc6-syzkaller-00012-g4312098baf37 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Call Trace: __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 print_bad_irq_dependency kernel/locking/lockdep.c:2611 [inline] check_irq_usage kernel/locking/lockdep.c:2850 [inline] check_prev_add kernel/locking/lockdep.c:3101 [inline] check_prevs_add kernel/locking/lockdep.c:3216 [inline] validate_chain+0x55d4/0x6470 kernel/locking/lockdep.c:3831 __lock_acquire+0x1292/0x1f60 kernel/locking/lockdep.c:5055 lock_acquire+0x1a7/0x400 kernel/locking/lockdep.c:5668 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x39/0x50 kernel/locking/spinlock.c:252 sock_i_uid+0x26/0xa0 net/core/sock.c:2542 inet_bhash2_addr_any_conflict+0x38/0x4b0 net/ipv4/inet_connection_sock.c:248 inet_csk_get_port+0x125c/0x19e0 net/ipv4/inet_connection_sock.c:519 __inet_bind+0x5d0/0xb90 net/ipv4/af_inet.c:525 inet_bind+0x186/0x220 net/ipv4/af_inet.c:456 mptcp_bind+0x121/0x1b0 net/mptcp/protocol.c:3641 __sys_bind+0x233/0x2e0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x76/0x80 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7fe3bea8c0d9 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:00007fe3bf8b9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00007fe3bebac050 RCX: 00007fe3bea8c0d9 RDX: 0000000000000010 RSI: 0000000020000080 RDI: 0000000000000008 RBP: 00007fe3beae7ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd3ecc704f R14: 00007fe3bf8b9300 R15: 0000000000022000