===================================================== WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected 5.9.0-rc5-next-20200916-syzkaller #0 Not tainted ----------------------------------------------------- syz-executor.1/13775 [HC0[0]:SC0[4]:HE1:SE0] is trying to acquire: ffff88805ee15a58 (&net->xfrm.xfrm_policy_lock){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:359 [inline] ffff88805ee15a58 (&net->xfrm.xfrm_policy_lock){+...}-{2:2}, at: xfrm_policy_delete+0x3a/0x90 net/xfrm/xfrm_policy.c:2236 and this task is already holding: ffff8880a811b1e0 (k-slock-AF_INET6){+.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] ffff8880a811b1e0 (k-slock-AF_INET6){+.-.}-{2:2}, at: tcp_close+0x6e3/0x1200 net/ipv4/tcp.c:2503 which would create a new lock dependency: (k-slock-AF_INET6){+.-.}-{2:2} -> (&net->xfrm.xfrm_policy_lock){+...}-{2:2} but this new dependency connects a SOFTIRQ-irq-safe lock: (k-slock-AF_INET6){+.-.}-{2:2} ... which became SOFTIRQ-irq-safe at: lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] sctp_rcv+0xd96/0x2d50 net/sctp/input.c:231 sctp6_rcv+0x12/0x30 net/sctp/ipv6.c:1056 ip6_protocol_deliver_rcu+0x2e8/0x1660 net/ipv6/ip6_input.c:433 ip6_input_finish+0x7f/0x160 net/ipv6/ip6_input.c:474 NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ip6_input+0x9c/0xd0 net/ipv6/ip6_input.c:483 dst_input include/net/dst.h:449 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ipv6_rcv+0x28e/0x3c0 net/ipv6/ip6_input.c:307 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5287 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5401 process_backlog+0x2e1/0x8e0 net/core/dev.c:6286 napi_poll net/core/dev.c:6730 [inline] net_rx_action+0x572/0x1300 net/core/dev.c:6800 __do_softirq+0x202/0xa42 kernel/softirq.c:298 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:786 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0x9d/0xd0 arch/x86/kernel/irq_64.c:77 do_softirq kernel/softirq.c:343 [inline] do_softirq+0x154/0x1b0 kernel/softirq.c:330 __local_bh_enable_ip+0x196/0x1f0 kernel/softirq.c:195 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:730 [inline] ip6_finish_output2+0x953/0x1770 net/ipv6/ip6_output.c:118 __ip6_finish_output net/ipv6/ip6_output.c:143 [inline] __ip6_finish_output+0x447/0xab0 net/ipv6/ip6_output.c:128 ip6_finish_output+0x34/0x1f0 net/ipv6/ip6_output.c:153 NF_HOOK_COND include/linux/netfilter.h:290 [inline] ip6_output+0x1db/0x520 net/ipv6/ip6_output.c:176 dst_output include/net/dst.h:443 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ip6_xmit+0x1258/0x1e80 net/ipv6/ip6_output.c:280 sctp_v6_xmit+0x339/0x650 net/sctp/ipv6.c:217 sctp_packet_transmit+0x20d7/0x3240 net/sctp/output.c:629 sctp_packet_singleton net/sctp/outqueue.c:773 [inline] sctp_outq_flush_ctrl.constprop.0+0x6d3/0xc40 net/sctp/outqueue.c:904 sctp_outq_flush+0xfb/0x2380 net/sctp/outqueue.c:1186 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1801 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1185 [inline] sctp_do_sm+0x4d0/0x4d80 net/sctp/sm_sideeffect.c:1156 sctp_primitive_ASSOCIATE+0x98/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9a7/0xc00 net/sctp/socket.c:1217 __sctp_setsockopt_connectx net/sctp/socket.c:1319 [inline] __sctp_setsockopt_connectx+0xfa/0x140 net/sctp/socket.c:1294 sctp_setsockopt_connectx_old net/sctp/socket.c:1330 [inline] sctp_setsockopt+0x1b69/0x97f0 net/sctp/socket.c:4482 __sys_setsockopt+0x2db/0x610 net/socket.c:2132 __do_sys_setsockopt net/socket.c:2143 [inline] __se_sys_setsockopt net/socket.c:2140 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2140 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 to a SOFTIRQ-irq-unsafe lock: (&s->seqcount#12){+.+.}-{0:0} ... which became SOFTIRQ-irq-unsafe at: ... lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 write_seqcount_t_begin_nested include/linux/seqlock.h:509 [inline] write_seqcount_t_begin include/linux/seqlock.h:535 [inline] write_seqlock include/linux/seqlock.h:883 [inline] xfrm_set_spdinfo+0x302/0x660 net/xfrm/xfrm_user.c:1185 xfrm_user_rcv_msg+0x414/0x700 net/xfrm/xfrm_user.c:2684 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2470 xfrm_netlink_rcv+0x6b/0x90 net/xfrm/xfrm_user.c:2692 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2362 ___sys_sendmsg+0xf3/0x170 net/socket.c:2416 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2449 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 other info that might help us debug this: Chain exists of: k-slock-AF_INET6 --> &net->xfrm.xfrm_policy_lock --> &s->seqcount#12 Possible interrupt unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&s->seqcount#12); local_irq_disable(); lock(k-slock-AF_INET6); lock(&net->xfrm.xfrm_policy_lock); lock(k-slock-AF_INET6); *** DEADLOCK *** 4 locks held by syz-executor.1/13775: #0: ffff888056c2dc90 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: inode_lock include/linux/fs.h:782 [inline] #0: ffff888056c2dc90 (&sb->s_type->i_mutex_key#12){+.+.}-{3:3}, at: __sock_release+0x86/0x280 net/socket.c:595 #1: ffff8880535efd78 (&smc->clcsock_release_lock){+.+.}-{3:3}, at: smc_clcsock_release+0x71/0xe0 net/smc/smc_close.c:30 #2: ffff8880a811b260 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: lock_sock include/net/sock.h:1581 [inline] #2: ffff8880a811b260 (k-sk_lock-AF_INET6){+.+.}-{0:0}, at: tcp_close+0x25/0x1200 net/ipv4/tcp.c:2413 #3: ffff8880a811b1e0 (k-slock-AF_INET6){+.-.}-{2:2}, at: spin_lock include/linux/spinlock.h:354 [inline] #3: ffff8880a811b1e0 (k-slock-AF_INET6){+.-.}-{2:2}, at: tcp_close+0x6e3/0x1200 net/ipv4/tcp.c:2503 the dependencies between SOFTIRQ-irq-safe lock and the holding lock: -> (k-slock-AF_INET6){+.-.}-{2:2} { HARDIRQ-ON-W at: lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] lock_sock_nested+0x3b/0x110 net/core/sock.c:3034 lock_sock include/net/sock.h:1581 [inline] tcp_sock_set_nodelay+0x18/0xe0 net/ipv4/tcp.c:2916 rds_tcp_listen_init+0x132/0x4d0 net/rds/tcp_listen.c:275 rds_tcp_init_net+0x265/0x4e0 net/rds/tcp.c:559 ops_init+0xaf/0x470 net/core/net_namespace.c:151 __register_pernet_operations net/core/net_namespace.c:1140 [inline] register_pernet_operations+0x35a/0x850 net/core/net_namespace.c:1217 register_pernet_device+0x26/0x70 net/core/net_namespace.c:1304 rds_tcp_init+0x77/0xe0 net/rds/tcp.c:717 do_one_initcall+0x103/0x6f0 init/main.c:1204 do_initcall_level init/main.c:1277 [inline] do_initcalls init/main.c:1293 [inline] do_basic_setup init/main.c:1313 [inline] kernel_init_freeable+0x5e9/0x66d init/main.c:1512 kernel_init+0xd/0x1c0 init/main.c:1402 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 IN-SOFTIRQ-W at: lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:354 [inline] sctp_rcv+0xd96/0x2d50 net/sctp/input.c:231 sctp6_rcv+0x12/0x30 net/sctp/ipv6.c:1056 ip6_protocol_deliver_rcu+0x2e8/0x1660 net/ipv6/ip6_input.c:433 ip6_input_finish+0x7f/0x160 net/ipv6/ip6_input.c:474 NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ip6_input+0x9c/0xd0 net/ipv6/ip6_input.c:483 dst_input include/net/dst.h:449 [inline] ip6_rcv_finish net/ipv6/ip6_input.c:76 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ipv6_rcv+0x28e/0x3c0 net/ipv6/ip6_input.c:307 __netif_receive_skb_one_core+0x114/0x180 net/core/dev.c:5287 __netif_receive_skb+0x27/0x1c0 net/core/dev.c:5401 process_backlog+0x2e1/0x8e0 net/core/dev.c:6286 napi_poll net/core/dev.c:6730 [inline] net_rx_action+0x572/0x1300 net/core/dev.c:6800 __do_softirq+0x202/0xa42 kernel/softirq.c:298 asm_call_on_stack+0xf/0x20 arch/x86/entry/entry_64.S:786 __run_on_irqstack arch/x86/include/asm/irq_stack.h:22 [inline] run_on_irqstack_cond arch/x86/include/asm/irq_stack.h:48 [inline] do_softirq_own_stack+0x9d/0xd0 arch/x86/kernel/irq_64.c:77 do_softirq kernel/softirq.c:343 [inline] do_softirq+0x154/0x1b0 kernel/softirq.c:330 __local_bh_enable_ip+0x196/0x1f0 kernel/softirq.c:195 local_bh_enable include/linux/bottom_half.h:32 [inline] rcu_read_unlock_bh include/linux/rcupdate.h:730 [inline] ip6_finish_output2+0x953/0x1770 net/ipv6/ip6_output.c:118 __ip6_finish_output net/ipv6/ip6_output.c:143 [inline] __ip6_finish_output+0x447/0xab0 net/ipv6/ip6_output.c:128 ip6_finish_output+0x34/0x1f0 net/ipv6/ip6_output.c:153 NF_HOOK_COND include/linux/netfilter.h:290 [inline] ip6_output+0x1db/0x520 net/ipv6/ip6_output.c:176 dst_output include/net/dst.h:443 [inline] NF_HOOK include/linux/netfilter.h:301 [inline] NF_HOOK include/linux/netfilter.h:295 [inline] ip6_xmit+0x1258/0x1e80 net/ipv6/ip6_output.c:280 sctp_v6_xmit+0x339/0x650 net/sctp/ipv6.c:217 sctp_packet_transmit+0x20d7/0x3240 net/sctp/output.c:629 sctp_packet_singleton net/sctp/outqueue.c:773 [inline] sctp_outq_flush_ctrl.constprop.0+0x6d3/0xc40 net/sctp/outqueue.c:904 sctp_outq_flush+0xfb/0x2380 net/sctp/outqueue.c:1186 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1801 [inline] sctp_side_effects net/sctp/sm_sideeffect.c:1185 [inline] sctp_do_sm+0x4d0/0x4d80 net/sctp/sm_sideeffect.c:1156 sctp_primitive_ASSOCIATE+0x98/0xc0 net/sctp/primitive.c:73 __sctp_connect+0x9a7/0xc00 net/sctp/socket.c:1217 __sctp_setsockopt_connectx net/sctp/socket.c:1319 [inline] __sctp_setsockopt_connectx+0xfa/0x140 net/sctp/socket.c:1294 sctp_setsockopt_connectx_old net/sctp/socket.c:1330 [inline] sctp_setsockopt+0x1b69/0x97f0 net/sctp/socket.c:4482 __sys_setsockopt+0x2db/0x610 net/socket.c:2132 __do_sys_setsockopt net/socket.c:2143 [inline] __se_sys_setsockopt net/socket.c:2140 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2140 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL USE at: lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] lock_sock_nested+0x3b/0x110 net/core/sock.c:3034 lock_sock include/net/sock.h:1581 [inline] tcp_sock_set_nodelay+0x18/0xe0 net/ipv4/tcp.c:2916 rds_tcp_listen_init+0x132/0x4d0 net/rds/tcp_listen.c:275 rds_tcp_init_net+0x265/0x4e0 net/rds/tcp.c:559 ops_init+0xaf/0x470 net/core/net_namespace.c:151 __register_pernet_operations net/core/net_namespace.c:1140 [inline] register_pernet_operations+0x35a/0x850 net/core/net_namespace.c:1217 register_pernet_device+0x26/0x70 net/core/net_namespace.c:1304 rds_tcp_init+0x77/0xe0 net/rds/tcp.c:717 do_one_initcall+0x103/0x6f0 init/main.c:1204 do_initcall_level init/main.c:1277 [inline] do_initcalls init/main.c:1293 [inline] do_basic_setup init/main.c:1313 [inline] kernel_init_freeable+0x5e9/0x66d init/main.c:1512 kernel_init+0xd/0x1c0 init/main.c:1402 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:296 } ... key at: [] af_family_kern_slock_keys+0xa0/0x300 ... acquired at: lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] xfrm_policy_delete+0x3a/0x90 net/xfrm/xfrm_policy.c:2236 xfrm_sk_free_policy include/net/xfrm.h:1192 [inline] inet_csk_destroy_sock+0x35b/0x490 net/ipv4/inet_connection_sock.c:887 tcp_close+0xdb5/0x1200 net/ipv4/tcp.c:2570 inet_release+0x12e/0x280 net/ipv4/af_inet.c:431 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:475 __sock_release net/socket.c:596 [inline] sock_release+0x87/0x1b0 net/socket.c:624 smc_clcsock_release+0xb3/0xe0 net/smc/smc_close.c:34 __smc_release+0x393/0x580 net/smc/af_smc.c:164 smc_release+0x167/0x490 net/smc/af_smc.c:199 __sock_release+0xcd/0x280 net/socket.c:596 sock_close+0x18/0x20 net/socket.c:1277 __fput+0x285/0x920 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:141 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:163 [inline] exit_to_user_mode_prepare+0x1e2/0x1f0 kernel/entry/common.c:190 syscall_exit_to_user_mode+0x7a/0x2c0 kernel/entry/common.c:265 entry_SYSCALL_64_after_hwframe+0x44/0xa9 the dependencies between the lock to be acquired and SOFTIRQ-irq-unsafe lock: -> (&s->seqcount#12){+.+.}-{0:0} { HARDIRQ-ON-W at: lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 write_seqcount_t_begin_nested include/linux/seqlock.h:509 [inline] write_seqcount_t_begin include/linux/seqlock.h:535 [inline] __xfrm_policy_inexact_prune_bin+0xbc/0x1040 net/xfrm/xfrm_policy.c:1077 xfrm_policy_inexact_insert+0x48c/0xbb0 net/xfrm/xfrm_policy.c:1205 xfrm_policy_insert+0x4f3/0x840 net/xfrm/xfrm_policy.c:1572 pfkey_spdadd+0xfb1/0x1550 net/key/af_key.c:2332 pfkey_process+0x66d/0x7a0 net/key/af_key.c:2841 pfkey_sendmsg+0x42d/0x800 net/key/af_key.c:3680 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2362 ___sys_sendmsg+0xf3/0x170 net/socket.c:2416 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2449 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 SOFTIRQ-ON-W at: lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 write_seqcount_t_begin_nested include/linux/seqlock.h:509 [inline] write_seqcount_t_begin include/linux/seqlock.h:535 [inline] write_seqlock include/linux/seqlock.h:883 [inline] xfrm_set_spdinfo+0x302/0x660 net/xfrm/xfrm_user.c:1185 xfrm_user_rcv_msg+0x414/0x700 net/xfrm/xfrm_user.c:2684 netlink_rcv_skb+0x15a/0x430 net/netlink/af_netlink.c:2470 xfrm_netlink_rcv+0x6b/0x90 net/xfrm/xfrm_user.c:2692 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1330 netlink_sendmsg+0x856/0xd90 net/netlink/af_netlink.c:1919 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2362 ___sys_sendmsg+0xf3/0x170 net/socket.c:2416 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2449 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 INITIAL USE at: lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 write_seqcount_t_begin_nested include/linux/seqlock.h:509 [inline] write_seqcount_t_begin include/linux/seqlock.h:535 [inline] __xfrm_policy_inexact_prune_bin+0xbc/0x1040 net/xfrm/xfrm_policy.c:1077 xfrm_policy_inexact_insert+0x48c/0xbb0 net/xfrm/xfrm_policy.c:1205 xfrm_policy_insert+0x4f3/0x840 net/xfrm/xfrm_policy.c:1572 pfkey_spdadd+0xfb1/0x1550 net/key/af_key.c:2332 pfkey_process+0x66d/0x7a0 net/key/af_key.c:2841 pfkey_sendmsg+0x42d/0x800 net/key/af_key.c:3680 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:671 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2362 ___sys_sendmsg+0xf3/0x170 net/socket.c:2416 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2449 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 (null) at: general protection fault, probably for non-canonical address 0xdffffc0000000004: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] CPU: 1 PID: 13775 Comm: syz-executor.1 Not tainted 5.9.0-rc5-next-20200916-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:print_lock_trace kernel/locking/lockdep.c:1751 [inline] RIP: 0010:print_lock_class_header kernel/locking/lockdep.c:2240 [inline] RIP: 0010:print_shortest_lock_dependencies.cold+0x110/0x2af kernel/locking/lockdep.c:2263 Code: 48 8b 04 24 48 c1 e8 03 42 80 3c 20 00 74 09 48 8b 3c 24 e8 c1 2b d9 f9 48 8b 04 24 48 8b 00 48 8d 78 14 48 89 fa 48 c1 ea 03 <42> 0f b6 0c 22 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 RSP: 0018:ffffc900075af7c8 EFLAGS: 00010002 RAX: 000000000000000c RBX: ffffffff8cc6d360 RCX: 0000000000000000 RDX: 0000000000000004 RSI: ffffffff815c26b7 RDI: 0000000000000020 RBP: ffffc900075af980 R08: 0000000000000004 R09: ffff8880ae720f8b R10: 0000000000000000 R11: 6c756e2820202020 R12: dffffc0000000000 R13: ffffffff8ca37188 R14: 0000000000000009 R15: 0000000000000001 FS: 0000000002f84940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000c40 CR3: 00000000937e4000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: print_bad_irq_dependency kernel/locking/lockdep.c:2402 [inline] check_irq_usage.cold+0x46b/0x5b0 kernel/locking/lockdep.c:2634 check_prev_add kernel/locking/lockdep.c:2823 [inline] check_prevs_add kernel/locking/lockdep.c:2944 [inline] validate_chain kernel/locking/lockdep.c:3562 [inline] __lock_acquire+0x2800/0x55d0 kernel/locking/lockdep.c:4796 lock_acquire+0x1f2/0xaa0 kernel/locking/lockdep.c:5398 __raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline] _raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:175 spin_lock_bh include/linux/spinlock.h:359 [inline] xfrm_policy_delete+0x3a/0x90 net/xfrm/xfrm_policy.c:2236 xfrm_sk_free_policy include/net/xfrm.h:1192 [inline] inet_csk_destroy_sock+0x35b/0x490 net/ipv4/inet_connection_sock.c:887 tcp_close+0xdb5/0x1200 net/ipv4/tcp.c:2570 inet_release+0x12e/0x280 net/ipv4/af_inet.c:431 inet6_release+0x4c/0x70 net/ipv6/af_inet6.c:475 __sock_release net/socket.c:596 [inline] sock_release+0x87/0x1b0 net/socket.c:624 smc_clcsock_release+0xb3/0xe0 net/smc/smc_close.c:34 __smc_release+0x393/0x580 net/smc/af_smc.c:164 smc_release+0x167/0x490 net/smc/af_smc.c:199 __sock_release+0xcd/0x280 net/socket.c:596 sock_close+0x18/0x20 net/socket.c:1277 __fput+0x285/0x920 fs/file_table.c:281 task_work_run+0xdd/0x190 kernel/task_work.c:141 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_user_mode_loop kernel/entry/common.c:163 [inline] exit_to_user_mode_prepare+0x1e2/0x1f0 kernel/entry/common.c:190 syscall_exit_to_user_mode+0x7a/0x2c0 kernel/entry/common.c:265 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x416f41 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 04 1b 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007ffe6c10fe30 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000416f41 RDX: 0000000000000000 RSI: 00000000000009bb RDI: 0000000000000003 RBP: 0000000000000001 R08: 0000000020e589bb R09: 0000000020e589bf R10: 00007ffe6c10ff20 R11: 0000000000000293 R12: 00000000011902c8 R13: 0000000000053600 R14: ffffffffffffffff R15: 000000000118cf4c Modules linked in: ---[ end trace 71b6ce44d53da1fe ]--- RIP: 0010:print_lock_trace kernel/locking/lockdep.c:1751 [inline] RIP: 0010:print_lock_class_header kernel/locking/lockdep.c:2240 [inline] RIP: 0010:print_shortest_lock_dependencies.cold+0x110/0x2af kernel/locking/lockdep.c:2263 Code: 48 8b 04 24 48 c1 e8 03 42 80 3c 20 00 74 09 48 8b 3c 24 e8 c1 2b d9 f9 48 8b 04 24 48 8b 00 48 8d 78 14 48 89 fa 48 c1 ea 03 <42> 0f b6 0c 22 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 RSP: 0018:ffffc900075af7c8 EFLAGS: 00010002 RAX: 000000000000000c RBX: ffffffff8cc6d360 RCX: 0000000000000000 RDX: 0000000000000004 RSI: ffffffff815c26b7 RDI: 0000000000000020 RBP: ffffc900075af980 R08: 0000000000000004 R09: ffff8880ae720f8b R10: 0000000000000000 R11: 6c756e2820202020 R12: dffffc0000000000 R13: ffffffff8ca37188 R14: 0000000000000009 R15: 0000000000000001 FS: 0000000002f84940(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000c40 CR3: 00000000937e4000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400