===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 6.1.0-rc4-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor.0/4177 [HC0[0]:SC0[4]:HE1:SE0] is trying to acquire: ffff88801dba1bb8 (k-clock-AF_INET){+++.}-{2:2}, at: sock_i_uid+0x1a/0xa0 net/core/sock.c:2542 and this task is already holding: ffffc900018706a8 (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline] ffffc900018706a8 (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2}, at: inet_csk_get_port+0x44c/0x2210 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 kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:350 [inline] __inet_inherit_port+0x260/0x1470 net/ipv4/inet_hashtables.c:229 tcp_v4_syn_recv_sock+0xa07/0x1290 net/ipv4/tcp_ipv4.c:1588 tcp_check_req+0x384/0x1650 net/ipv4/tcp_minisocks.c:786 tcp_v4_rcv+0x1d4d/0x33d0 net/ipv4/tcp_ipv4.c:2030 ip_protocol_deliver_rcu+0x7f/0x5f0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x29c/0x400 net/ipv4/ip_input.c:233 dst_input include/net/dst.h:455 [inline] ip_sublist_rcv_finish+0x88/0x250 net/ipv4/ip_input.c:575 ip_list_rcv_finish net/ipv4/ip_input.c:625 [inline] ip_sublist_rcv+0x436/0x840 net/ipv4/ip_input.c:633 ip_list_rcv+0x2a5/0x3e0 net/ipv4/ip_input.c:668 __netif_receive_skb_list_ptype net/core/dev.c:5532 [inline] __netif_receive_skb_list_core+0x490/0x8a0 net/core/dev.c:5580 __netif_receive_skb_list net/core/dev.c:5632 [inline] netif_receive_skb_list_internal+0x5f3/0xc90 net/core/dev.c:5723 gro_normal_list include/net/gro.h:433 [inline] gro_normal_list include/net/gro.h:429 [inline] napi_complete_done+0x187/0x700 net/core/dev.c:6064 virtqueue_napi_complete drivers/net/virtio_net.c:401 [inline] virtnet_poll+0xabc/0x10f0 drivers/net/virtio_net.c:1678 __napi_poll+0x9e/0x5c0 net/core/dev.c:6498 napi_poll net/core/dev.c:6565 [inline] net_rx_action+0x8c8/0xcc0 net/core/dev.c:6676 __do_softirq+0x1fb/0xadc kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662 common_interrupt+0xad/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x26/0x40 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+0x185/0x200 drivers/acpi/processor_idle.c:572 acpi_idle_enter+0x2c7/0x4c0 drivers/acpi/processor_idle.c:709 cpuidle_enter_state+0x156/0xc40 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x49/0xa0 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3f7/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:400 start_secondary+0x256/0x300 arch/x86/kernel/smpboot.c:262 secondary_startup_64_no_verify+0xce/0xdb to a SOFTIRQ-irq-unsafe lock: (k-clock-AF_INET){+++.}-{2:2} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2e/0x40 kernel/locking/spinlock.c:300 l2tp_tunnel_register+0xf9/0xf60 net/l2tp/l2tp_core.c:1477 l2tp_nl_cmd_tunnel_create+0x364/0x9a0 net/l2tp/l2tp_netlink.c:245 genl_family_rcv_msg_doit+0x1e4/0x2f0 net/netlink/genetlink.c:756 genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0x34c/0x630 net/netlink/genetlink.c:850 netlink_rcv_skb+0x11c/0x370 net/netlink/af_netlink.c:2540 genl_rcv+0x23/0x30 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x437/0x710 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x786/0xc30 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xaf/0xe0 net/socket.c:734 ____sys_sendmsg+0x5f7/0x8a0 net/socket.c:2482 ___sys_sendmsg+0xdb/0x160 net/socket.c:2536 __sys_sendmsg+0xc7/0x160 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 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.0/4177: #0: ffff888028068130 (sk_lock-AF_SMC){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #0: ffff888028068130 (sk_lock-AF_SMC){+.+.}-{0:0}, at: smc_bind+0xcc/0x320 net/smc/af_smc.c:424 #1: ffff88801dba1930 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1721 [inline] #1: ffff88801dba1930 (k-sk_lock-AF_INET){+.+.}-{0:0}, at: __inet_bind+0x69d/0xb50 net/ipv4/af_inet.c:511 #2: ffffc900018706a8 (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:355 [inline] #2: ffffc900018706a8 (&tcp_hashinfo.bhash[i].lock){+.-.}-{2:2}, at: inet_csk_get_port+0x44c/0x2210 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 kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:355 [inline] inet_csk_get_port+0x44c/0x2210 net/ipv4/inet_connection_sock.c:496 __inet6_bind+0x45c/0x1940 net/ipv6/af_inet6.c:412 inet6_bind+0x133/0x1b0 net/ipv6/af_inet6.c:471 rds_tcp_listen_init+0x263/0x450 net/rds/tcp_listen.c:307 rds_tcp_init_net+0x1c8/0x420 net/rds/tcp.c:573 ops_init+0x9a/0x590 net/core/net_namespace.c:135 __register_pernet_operations net/core/net_namespace.c:1153 [inline] register_pernet_operations+0x2df/0x750 net/core/net_namespace.c:1222 register_pernet_device+0x25/0x60 net/core/net_namespace.c:1309 rds_tcp_init+0x48/0x98 net/rds/tcp.c:731 do_one_initcall+0xf8/0x550 init/main.c:1303 do_initcall_level init/main.c:1376 [inline] do_initcalls init/main.c:1392 [inline] do_basic_setup init/main.c:1411 [inline] kernel_init_freeable+0x5e5/0x63f init/main.c:1631 kernel_init+0x18/0x130 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 IN-SOFTIRQ-W at: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline] _raw_spin_lock+0x2e/0x40 kernel/locking/spinlock.c:154 spin_lock include/linux/spinlock.h:350 [inline] __inet_inherit_port+0x260/0x1470 net/ipv4/inet_hashtables.c:229 tcp_v4_syn_recv_sock+0xa07/0x1290 net/ipv4/tcp_ipv4.c:1588 tcp_check_req+0x384/0x1650 net/ipv4/tcp_minisocks.c:786 tcp_v4_rcv+0x1d4d/0x33d0 net/ipv4/tcp_ipv4.c:2030 ip_protocol_deliver_rcu+0x7f/0x5f0 net/ipv4/ip_input.c:205 ip_local_deliver_finish+0x29c/0x400 net/ipv4/ip_input.c:233 dst_input include/net/dst.h:455 [inline] ip_sublist_rcv_finish+0x88/0x250 net/ipv4/ip_input.c:575 ip_list_rcv_finish net/ipv4/ip_input.c:625 [inline] ip_sublist_rcv+0x436/0x840 net/ipv4/ip_input.c:633 ip_list_rcv+0x2a5/0x3e0 net/ipv4/ip_input.c:668 __netif_receive_skb_list_ptype net/core/dev.c:5532 [inline] __netif_receive_skb_list_core+0x490/0x8a0 net/core/dev.c:5580 __netif_receive_skb_list net/core/dev.c:5632 [inline] netif_receive_skb_list_internal+0x5f3/0xc90 net/core/dev.c:5723 gro_normal_list include/net/gro.h:433 [inline] gro_normal_list include/net/gro.h:429 [inline] napi_complete_done+0x187/0x700 net/core/dev.c:6064 virtqueue_napi_complete drivers/net/virtio_net.c:401 [inline] virtnet_poll+0xabc/0x10f0 drivers/net/virtio_net.c:1678 __napi_poll+0x9e/0x5c0 net/core/dev.c:6498 napi_poll net/core/dev.c:6565 [inline] net_rx_action+0x8c8/0xcc0 net/core/dev.c:6676 __do_softirq+0x1fb/0xadc kernel/softirq.c:571 invoke_softirq kernel/softirq.c:445 [inline] __irq_exit_rcu+0x123/0x180 kernel/softirq.c:650 irq_exit_rcu+0x9/0x20 kernel/softirq.c:662 common_interrupt+0xad/0xd0 arch/x86/kernel/irq.c:240 asm_common_interrupt+0x26/0x40 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+0x185/0x200 drivers/acpi/processor_idle.c:572 acpi_idle_enter+0x2c7/0x4c0 drivers/acpi/processor_idle.c:709 cpuidle_enter_state+0x156/0xc40 drivers/cpuidle/cpuidle.c:239 cpuidle_enter+0x49/0xa0 drivers/cpuidle/cpuidle.c:356 call_cpuidle kernel/sched/idle.c:155 [inline] cpuidle_idle_call kernel/sched/idle.c:236 [inline] do_idle+0x3f7/0x590 kernel/sched/idle.c:303 cpu_startup_entry+0x18/0x20 kernel/sched/idle.c:400 start_secondary+0x256/0x300 arch/x86/kernel/smpboot.c:262 secondary_startup_64_no_verify+0xce/0xdb INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline] _raw_spin_lock_bh+0x33/0x40 kernel/locking/spinlock.c:178 spin_lock_bh include/linux/spinlock.h:355 [inline] inet_csk_get_port+0x44c/0x2210 net/ipv4/inet_connection_sock.c:496 __inet6_bind+0x45c/0x1940 net/ipv6/af_inet6.c:412 inet6_bind+0x133/0x1b0 net/ipv6/af_inet6.c:471 rds_tcp_listen_init+0x263/0x450 net/rds/tcp_listen.c:307 rds_tcp_init_net+0x1c8/0x420 net/rds/tcp.c:573 ops_init+0x9a/0x590 net/core/net_namespace.c:135 __register_pernet_operations net/core/net_namespace.c:1153 [inline] register_pernet_operations+0x2df/0x750 net/core/net_namespace.c:1222 register_pernet_device+0x25/0x60 net/core/net_namespace.c:1309 rds_tcp_init+0x48/0x98 net/rds/tcp.c:731 do_one_initcall+0xf8/0x550 init/main.c:1303 do_initcall_level init/main.c:1376 [inline] do_initcalls init/main.c:1392 [inline] do_basic_setup init/main.c:1411 [inline] kernel_init_freeable+0x5e5/0x63f init/main.c:1631 kernel_init+0x18/0x130 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 } ... key at: [] __key.1+0x0/0x40 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 kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_write_lock_bh include/linux/rwlock_api_smp.h:202 [inline] _raw_write_lock_bh+0x33/0x40 kernel/locking/spinlock.c:334 sock_orphan include/net/sock.h:2090 [inline] sk_common_release+0xb4/0x2e0 net/core/sock.c:3672 inet_release+0xf3/0x210 net/ipv4/af_inet.c:428 __sock_release net/socket.c:650 [inline] sock_release+0x81/0x190 net/socket.c:678 sock_free drivers/net/wireguard/socket.c:339 [inline] wg_socket_reinit+0x1aa/0x300 drivers/net/wireguard/socket.c:435 wg_netns_pre_exit+0xed/0x1e0 drivers/net/wireguard/device.c:427 ops_pre_exit_list net/core/net_namespace.c:159 [inline] cleanup_net+0x3a8/0x980 net/core/net_namespace.c:589 process_one_work+0x8ba/0x14c0 kernel/workqueue.c:2289 worker_thread+0x59c/0xec0 kernel/workqueue.c:2436 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 HARDIRQ-ON-R at: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x3f/0x70 kernel/locking/spinlock.c:252 sock_i_uid+0x1a/0xa0 net/core/sock.c:2542 udp_lib_lport_inuse+0x2c/0x3f0 net/ipv4/udp.c:140 udp_lib_get_port+0x719/0x1630 net/ipv4/udp.c:306 __inet_bind+0x635/0xb50 net/ipv4/af_inet.c:525 inet_bind+0x133/0x1b0 net/ipv4/af_inet.c:456 udp_sock_create4+0x19c/0x420 net/ipv4/udp_tunnel_core.c:30 udp_sock_create include/net/udp_tunnel.h:59 [inline] rxe_setup_udp_tunnel.constprop.0+0xd0/0x190 drivers/infiniband/sw/rxe/rxe_net.c:186 rxe_net_ipv4_init drivers/infiniband/sw/rxe/rxe_net.c:622 [inline] rxe_net_init+0x18/0x70 drivers/infiniband/sw/rxe/rxe_net.c:667 rxe_module_init+0xb/0x30 drivers/infiniband/sw/rxe/rxe.c:213 do_one_initcall+0xf8/0x550 init/main.c:1303 do_initcall_level init/main.c:1376 [inline] do_initcalls init/main.c:1392 [inline] do_basic_setup init/main.c:1411 [inline] kernel_init_freeable+0x5e5/0x63f init/main.c:1631 kernel_init+0x18/0x130 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 SOFTIRQ-ON-W at: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_write_lock include/linux/rwlock_api_smp.h:209 [inline] _raw_write_lock+0x2e/0x40 kernel/locking/spinlock.c:300 l2tp_tunnel_register+0xf9/0xf60 net/l2tp/l2tp_core.c:1477 l2tp_nl_cmd_tunnel_create+0x364/0x9a0 net/l2tp/l2tp_netlink.c:245 genl_family_rcv_msg_doit+0x1e4/0x2f0 net/netlink/genetlink.c:756 genl_family_rcv_msg net/netlink/genetlink.c:833 [inline] genl_rcv_msg+0x34c/0x630 net/netlink/genetlink.c:850 netlink_rcv_skb+0x11c/0x370 net/netlink/af_netlink.c:2540 genl_rcv+0x23/0x30 net/netlink/genetlink.c:861 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline] netlink_unicast+0x437/0x710 net/netlink/af_netlink.c:1345 netlink_sendmsg+0x786/0xc30 net/netlink/af_netlink.c:1921 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xaf/0xe0 net/socket.c:734 ____sys_sendmsg+0x5f7/0x8a0 net/socket.c:2482 ___sys_sendmsg+0xdb/0x160 net/socket.c:2536 __sys_sendmsg+0xc7/0x160 net/socket.c:2565 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd INITIAL USE at: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_write_lock_bh include/linux/rwlock_api_smp.h:202 [inline] _raw_write_lock_bh+0x33/0x40 kernel/locking/spinlock.c:334 sock_orphan include/net/sock.h:2090 [inline] sk_common_release+0xb4/0x2e0 net/core/sock.c:3672 inet_release+0xf3/0x210 net/ipv4/af_inet.c:428 __sock_release net/socket.c:650 [inline] sock_release+0x81/0x190 net/socket.c:678 sock_free drivers/net/wireguard/socket.c:339 [inline] wg_socket_reinit+0x1aa/0x300 drivers/net/wireguard/socket.c:435 wg_netns_pre_exit+0xed/0x1e0 drivers/net/wireguard/device.c:427 ops_pre_exit_list net/core/net_namespace.c:159 [inline] cleanup_net+0x3a8/0x980 net/core/net_namespace.c:589 process_one_work+0x8ba/0x14c0 kernel/workqueue.c:2289 worker_thread+0x59c/0xec0 kernel/workqueue.c:2436 kthread+0x298/0x340 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 INITIAL READ USE at: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x3f/0x70 kernel/locking/spinlock.c:252 sock_i_uid+0x1a/0xa0 net/core/sock.c:2542 udp_lib_lport_inuse+0x2c/0x3f0 net/ipv4/udp.c:140 udp_lib_get_port+0x719/0x1630 net/ipv4/udp.c:306 __inet_bind+0x635/0xb50 net/ipv4/af_inet.c:525 inet_bind+0x133/0x1b0 net/ipv4/af_inet.c:456 udp_sock_create4+0x19c/0x420 net/ipv4/udp_tunnel_core.c:30 udp_sock_create include/net/udp_tunnel.h:59 [inline] rxe_setup_udp_tunnel.constprop.0+0xd0/0x190 drivers/infiniband/sw/rxe/rxe_net.c:186 rxe_net_ipv4_init drivers/infiniband/sw/rxe/rxe_net.c:622 [inline] rxe_net_init+0x18/0x70 drivers/infiniband/sw/rxe/rxe_net.c:667 rxe_module_init+0xb/0x30 drivers/infiniband/sw/rxe/rxe.c:213 do_one_initcall+0xf8/0x550 init/main.c:1303 do_initcall_level init/main.c:1376 [inline] do_initcalls init/main.c:1392 [inline] do_basic_setup init/main.c:1411 [inline] kernel_init_freeable+0x5e5/0x63f init/main.c:1631 kernel_init+0x18/0x130 init/main.c:1519 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 } ... key at: [] af_kern_callback_keys+0x20/0x300 ... acquired at: lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x3f/0x70 kernel/locking/spinlock.c:252 sock_i_uid+0x1a/0xa0 net/core/sock.c:2542 inet_bhash2_addr_any_conflict+0x24/0x360 net/ipv4/inet_connection_sock.c:248 inet_csk_get_port+0x16ec/0x2210 net/ipv4/inet_connection_sock.c:519 __inet_bind+0x635/0xb50 net/ipv4/af_inet.c:525 inet_bind+0x133/0x1b0 net/ipv4/af_inet.c:456 smc_bind+0x27b/0x320 net/smc/af_smc.c:433 __sys_bind+0x16f/0x1d0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x6e/0xb0 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd stack backtrace: CPU: 0 PID: 4177 Comm: syz-executor.0 Not tainted 6.1.0-rc4-syzkaller #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+0x5b/0x81 lib/dump_stack.c:106 print_bad_irq_dependency kernel/locking/lockdep.c:2611 [inline] check_irq_usage.cold+0x4e4/0x761 kernel/locking/lockdep.c:2850 check_prev_add kernel/locking/lockdep.c:3101 [inline] check_prevs_add kernel/locking/lockdep.c:3216 [inline] validate_chain kernel/locking/lockdep.c:3831 [inline] __lock_acquire+0x2a5b/0x56d0 kernel/locking/lockdep.c:5055 lock_acquire kernel/locking/lockdep.c:5668 [inline] lock_acquire+0x1e3/0x630 kernel/locking/lockdep.c:5633 __raw_read_lock_bh include/linux/rwlock_api_smp.h:176 [inline] _raw_read_lock_bh+0x3f/0x70 kernel/locking/spinlock.c:252 sock_i_uid+0x1a/0xa0 net/core/sock.c:2542 inet_bhash2_addr_any_conflict+0x24/0x360 net/ipv4/inet_connection_sock.c:248 inet_csk_get_port+0x16ec/0x2210 net/ipv4/inet_connection_sock.c:519 __inet_bind+0x635/0xb50 net/ipv4/af_inet.c:525 inet_bind+0x133/0x1b0 net/ipv4/af_inet.c:456 smc_bind+0x27b/0x320 net/smc/af_smc.c:433 __sys_bind+0x16f/0x1d0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __x64_sys_bind+0x6e/0xb0 net/socket.c:1785 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f945768b639 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f9458419168 EFLAGS: 00000246 ORIG_RAX: 0000000000000031 RAX: ffffffffffffffda RBX: 00007f94577abf80 RCX: 00007f945768b639 RDX: 0000000000000010 RSI: 0000000020000040 RDI: 0000000000000004 RBP: 00007f94576e6ae9 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffd2950ce7f R14: 00007f9458419300 R15: 0000000000022000