================================ WARNING: inconsistent lock state 5.5.0-syzkaller #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-executor.1/12559 [HC0[0]:SC1[1]:HE1:SE0] takes: ffffffff8a8b6e38 (rxrpc_conn_id_lock){+.?.}, at: spin_lock include/linux/spinlock.h:338 [inline] ffffffff8a8b6e38 (rxrpc_conn_id_lock){+.?.}, at: rxrpc_put_client_connection_id net/rxrpc/conn_client.c:138 [inline] ffffffff8a8b6e38 (rxrpc_conn_id_lock){+.?.}, at: rxrpc_put_client_connection_id+0x73/0xe0 net/rxrpc/conn_client.c:135 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4484 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] rxrpc_get_client_connection_id net/rxrpc/conn_client.c:109 [inline] rxrpc_alloc_client_connection net/rxrpc/conn_client.c:193 [inline] rxrpc_get_client_conn net/rxrpc/conn_client.c:340 [inline] rxrpc_connect_call+0x954/0x4e30 net/rxrpc/conn_client.c:701 rxrpc_new_client_call+0x9c0/0x1ad0 net/rxrpc/call_object.c:290 rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:595 [inline] rxrpc_do_sendmsg+0xffa/0x1d5f net/rxrpc/sendmsg.c:652 rxrpc_sendmsg+0x4d6/0x5f0 net/rxrpc/af_rxrpc.c:586 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:672 ____sys_sendmsg+0x358/0x880 net/socket.c:2343 ___sys_sendmsg+0x100/0x170 net/socket.c:2397 __sys_sendmmsg+0x1bf/0x4d0 net/socket.c:2487 __do_sys_sendmmsg net/socket.c:2516 [inline] __se_sys_sendmmsg net/socket.c:2513 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2513 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 entry_SYSCALL_64_after_hwframe+0x49/0xbe irq event stamp: 11146 hardirqs last enabled at (11146): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (11146): [] _raw_spin_unlock_irqrestore+0x66/0xe0 kernel/locking/spinlock.c:191 hardirqs last disabled at (11145): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (11145): [] _raw_spin_lock_irqsave+0x6f/0xcd kernel/locking/spinlock.c:159 softirqs last enabled at (11110): [] spin_unlock_bh include/linux/spinlock.h:383 [inline] softirqs last enabled at (11110): [] remove_user_radios drivers/net/wireless/mac80211_hwsim.c:3820 [inline] softirqs last enabled at (11110): [] mac80211_hwsim_netlink_notify+0x281/0xaa0 drivers/net/wireless/mac80211_hwsim.c:3838 softirqs last disabled at (11113): [] invoke_softirq kernel/softirq.c:373 [inline] softirqs last disabled at (11113): [] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(rxrpc_conn_id_lock); lock(rxrpc_conn_id_lock); *** DEADLOCK *** 4 locks held by syz-executor.1/12559: #0: ffff888091b31c40 (&sb->s_type->i_mutex_key#12){+.+.}, at: inode_lock include/linux/fs.h:791 [inline] #0: ffff888091b31c40 (&sb->s_type->i_mutex_key#12){+.+.}, at: __sock_release+0x89/0x280 net/socket.c:604 #1: ffffffff8a788048 ((netlink_chain).rwsem){++++}, at: __blocking_notifier_call_chain kernel/notifier.c:283 [inline] #1: ffffffff8a788048 ((netlink_chain).rwsem){++++}, at: __blocking_notifier_call_chain kernel/notifier.c:271 [inline] #1: ffffffff8a788048 ((netlink_chain).rwsem){++++}, at: blocking_notifier_call_chain kernel/notifier.c:295 [inline] #1: ffffffff8a788048 ((netlink_chain).rwsem){++++}, at: blocking_notifier_call_chain+0x7d/0xb0 kernel/notifier.c:292 #2: ffffffff89babf40 (rcu_read_lock){....}, at: nfulnl_rcv_nl_event+0x3b/0x4a0 net/netfilter/nfnetlink_log.c:822 #3: ffffffff89babe80 (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2176 [inline] #3: ffffffff89babe80 (rcu_callback){....}, at: rcu_core+0x562/0x1390 kernel/rcu/tree.c:2410 stack backtrace: CPU: 0 PID: 12559 Comm: syz-executor.1 Not tainted 5.5.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x197/0x210 lib/dump_stack.c:118 print_usage_bug.cold+0x327/0x378 kernel/locking/lockdep.c:3100 valid_state kernel/locking/lockdep.c:3111 [inline] mark_lock_irq kernel/locking/lockdep.c:3308 [inline] mark_lock+0xbb4/0x1220 kernel/locking/lockdep.c:3665 mark_usage kernel/locking/lockdep.c:3565 [inline] __lock_acquire+0x1e8e/0x4a00 kernel/locking/lockdep.c:3908 lock_acquire+0x190/0x410 kernel/locking/lockdep.c:4484 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] rxrpc_put_client_connection_id net/rxrpc/conn_client.c:138 [inline] rxrpc_put_client_connection_id+0x73/0xe0 net/rxrpc/conn_client.c:135 rxrpc_put_one_client_conn net/rxrpc/conn_client.c:955 [inline] rxrpc_put_client_conn+0x243/0xc90 net/rxrpc/conn_client.c:1001 rxrpc_put_connection net/rxrpc/ar-internal.h:965 [inline] rxrpc_rcu_destroy_call+0xbd/0x200 net/rxrpc/call_object.c:572 rcu_do_batch kernel/rcu/tree.c:2186 [inline] rcu_core+0x5e1/0x1390 kernel/rcu/tree.c:2410 rcu_core_si+0x9/0x10 kernel/rcu/tree.c:2419 __do_softirq+0x262/0x98c kernel/softirq.c:292 invoke_softirq kernel/softirq.c:373 [inline] irq_exit+0x19b/0x1e0 kernel/softirq.c:413 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x1a3/0x610 arch/x86/kernel/apic/apic.c:1137 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:829 RIP: 0010:lock_release+0xa/0x960 kernel/locking/lockdep.c:4492 Code: 58 00 e9 8e fe ff ff 48 c7 c7 70 12 a4 8a e8 1d f2 58 00 e9 30 fc ff ff 0f 1f 84 00 00 00 00 00 48 ba 00 00 00 00 00 fc ff df <55> 48 89 e5 41 57 41 56 4c 8d 75 d8 41 55 49 89 f5 41 54 49 89 fc RSP: 0018:ffffc90001ab7ba0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff8880616e2140 RBX: 0000000000000001 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: ffffffff866c4ea2 RDI: ffffffff89babf40 RBP: ffffc90001ab7c00 R08: ffff8880616e2140 R09: ffffed1015d0707c R10: ffffed1015d0707b R11: ffff8880ae8383db R12: 0000000000000001 R13: ffff8880a0022800 R14: ffffc90001ab7d38 R15: 0000000000000001 notifier_call_chain+0xc2/0x230 kernel/notifier.c:83 __blocking_notifier_call_chain kernel/notifier.c:284 [inline] __blocking_notifier_call_chain kernel/notifier.c:271 [inline] blocking_notifier_call_chain kernel/notifier.c:295 [inline] blocking_notifier_call_chain+0x94/0xb0 kernel/notifier.c:292 netlink_release+0xc9f/0x1c90 net/netlink/af_netlink.c:774 __sock_release+0xce/0x280 net/socket.c:605 sock_close+0x1e/0x30 net/socket.c:1283 __fput+0x2ff/0x890 fs/file_table.c:280 ____fput+0x16/0x20 fs/file_table.c:313 task_work_run+0x145/0x1c0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x316/0x380 arch/x86/entry/common.c:164 prepare_exit_to_usermode arch/x86/entry/common.c:195 [inline] syscall_return_slowpath arch/x86/entry/common.c:278 [inline] do_syscall_64+0x676/0x790 arch/x86/entry/common.c:304 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x414f31 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:00007ffca6984b50 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000414f31 RDX: 0000001b33720000 RSI: 0000000000001a03 RDI: 0000000000000003 RBP: 0000000000000001 R08: 00000000bf55fa03 R09: 00000000bf55fa07 R10: 00007ffca6984c30 R11: 0000000000000293 R12: 000000000075c9a0 R13: 000000000075c9a0 R14: 00000000007639d8 R15: 000000000075bfd4