================================ WARNING: inconsistent lock state 4.14.306-syzkaller #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. ksoftirqd/0/7 [HC0[0]:SC1[1]:HE1:SE0] takes: (&(&local->client_conns_lock)->rlock){+.?.}, at: [] spin_lock include/linux/spinlock.h:317 [inline] (&(&local->client_conns_lock)->rlock){+.?.}, at: [] rxrpc_put_one_client_conn net/rxrpc/conn_client.c:905 [inline] (&(&local->client_conns_lock)->rlock){+.?.}, at: [] rxrpc_put_client_conn+0x661/0xac0 net/rxrpc/conn_client.c:957 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:152 spin_lock include/linux/spinlock.h:317 [inline] rxrpc_get_client_conn net/rxrpc/conn_client.c:306 [inline] rxrpc_connect_call+0x2bb/0x3e10 net/rxrpc/conn_client.c:692 rxrpc_new_client_call+0x8f4/0x1a10 net/rxrpc/call_object.c:276 rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:531 [inline] rxrpc_do_sendmsg+0x8dc/0xfb0 net/rxrpc/sendmsg.c:583 rxrpc_sendmsg+0x3cf/0x5f0 net/rxrpc/af_rxrpc.c:543 sock_sendmsg_nosec net/socket.c:646 [inline] sock_sendmsg+0xb5/0x100 net/socket.c:656 ___sys_sendmsg+0x6c8/0x800 net/socket.c:2062 __sys_sendmsg+0xa3/0x120 net/socket.c:2096 SYSC_sendmsg net/socket.c:2107 [inline] SyS_sendmsg+0x27/0x40 net/socket.c:2103 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x5e/0xd3 irq event stamp: 615800 hardirqs last enabled at (615800): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (615800): [] _raw_spin_unlock_irqrestore+0x79/0xe0 kernel/locking/spinlock.c:192 hardirqs last disabled at (615799): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (615799): [] _raw_spin_lock_irqsave+0x66/0xc0 kernel/locking/spinlock.c:160 softirqs last enabled at (615652): [] __do_softirq+0x68b/0x9ff kernel/softirq.c:314 softirqs last disabled at (615657): [] run_ksoftirqd+0x50/0x1a0 kernel/softirq.c:670 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&(&local->client_conns_lock)->rlock); lock(&(&local->client_conns_lock)->rlock); *** DEADLOCK *** 1 lock held by ksoftirqd/0/7: #0: (rcu_callback){....}, at: [] __rcu_reclaim kernel/rcu/rcu.h:185 [inline] #0: (rcu_callback){....}, at: [] rcu_do_batch kernel/rcu/tree.c:2699 [inline] #0: (rcu_callback){....}, at: [] invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline] #0: (rcu_callback){....}, at: [] __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline] #0: (rcu_callback){....}, at: [] rcu_process_callbacks+0x84e/0x1180 kernel/rcu/tree.c:2946 stack backtrace: CPU: 0 PID: 7 Comm: ksoftirqd/0 Not tainted 4.14.306-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/21/2023 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 print_usage_bug.cold+0x42e/0x570 kernel/locking/lockdep.c:2589 valid_state kernel/locking/lockdep.c:2602 [inline] mark_lock_irq kernel/locking/lockdep.c:2796 [inline] mark_lock+0xb4d/0x1050 kernel/locking/lockdep.c:3194 mark_irqflags kernel/locking/lockdep.c:3072 [inline] __lock_acquire+0xc81/0x3f20 kernel/locking/lockdep.c:3448 lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:152 spin_lock include/linux/spinlock.h:317 [inline] rxrpc_put_one_client_conn net/rxrpc/conn_client.c:905 [inline] rxrpc_put_client_conn+0x661/0xac0 net/rxrpc/conn_client.c:957 rxrpc_put_connection net/rxrpc/ar-internal.h:862 [inline] rxrpc_rcu_destroy_call+0x83/0x190 net/rxrpc/call_object.c:653 __rcu_reclaim kernel/rcu/rcu.h:195 [inline] rcu_do_batch kernel/rcu/tree.c:2699 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2962 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2929 [inline] rcu_process_callbacks+0x780/0x1180 kernel/rcu/tree.c:2946 __do_softirq+0x24d/0x9ff kernel/softirq.c:288 run_ksoftirqd+0x50/0x1a0 kernel/softirq.c:670 smpboot_thread_fn+0x5c1/0x920 kernel/smpboot.c:164 kthread+0x30d/0x420 kernel/kthread.c:232 ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:406 kauditd_printk_skb: 10 callbacks suppressed audit: type=1800 audit(1677148135.657:22): pid=10674 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=0 res=0 audit: type=1800 audit(1677148135.747:23): pid=10686 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=65537 res=0 audit: type=1800 audit(1677148135.777:24): pid=10687 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=0 res=0 audit: type=1800 audit(1677148135.867:25): pid=10703 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=131074 res=0 audit: type=1800 audit(1677148135.887:26): pid=10711 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=65537 res=0 audit: type=1800 audit(1677148135.967:27): pid=10724 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=196611 res=0 audit: type=1800 audit(1677148135.977:28): pid=10731 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=131074 res=0 audit: type=1800 audit(1677148136.077:29): pid=10739 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.3" name="SYSV00000000" dev="hugetlbfs" ino=0 res=0 audit: type=1800 audit(1677148136.097:30): pid=10747 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.5" name="SYSV00000000" dev="hugetlbfs" ino=262148 res=0 audit: type=1800 audit(1677148136.167:31): pid=10748 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed" comm="syz-executor.0" name="SYSV00000000" dev="hugetlbfs" ino=196611 res=0 XFS (loop4): Mounting V4 Filesystem XFS (loop4): Ending clean mount syz-executor.4 (10834) used greatest stack depth: 24464 bytes left XFS (loop4): Unmounting Filesystem XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Unmounting Filesystem XFS (loop4): Mounting V4 Filesystem XFS (loop4): Ending clean mount XFS (loop2): Mounting V4 Filesystem XFS (loop2): Ending clean mount XFS (loop4): Unmounting Filesystem XFS (loop2): Unmounting Filesystem XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Unmounting Filesystem XFS (loop4): Mounting V4 Filesystem XFS (loop4): Ending clean mount XFS (loop4): Unmounting Filesystem XFS (loop2): Mounting V4 Filesystem XFS (loop2): Ending clean mount XFS (loop2): Unmounting Filesystem XFS (loop5): Mounting V4 Filesystem XFS (loop5): Ending clean mount XFS (loop5): Unmounting Filesystem XFS (loop4): Mounting V4 Filesystem GRED: Unable to relocate VQ 0x0 after dequeue, screwing up backlog XFS (loop2): Mounting V4 Filesystem XFS (loop4): Ending clean mount XFS (loop2): Ending clean mount XFS (loop4): Unmounting Filesystem XFS (loop2): Unmounting Filesystem ntfs: volume version 3.1. ntfs: volume version 3.1. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. ntfs: volume version 3.1. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. ntfs: volume version 3.1. ntfs: volume version 3.1. netlink: 20 bytes leftover after parsing attributes in process `syz-executor.1'. ntfs: volume version 3.1. ntfs: volume version 3.1.