================================ WARNING: inconsistent lock state 4.14.307-syzkaller #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. ksoftirqd/1/17 [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: 525046 hardirqs last enabled at (525046): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (525046): [] _raw_spin_unlock_irqrestore+0x79/0xe0 kernel/locking/spinlock.c:192 hardirqs last disabled at (525045): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (525045): [] _raw_spin_lock_irqsave+0x66/0xc0 kernel/locking/spinlock.c:160 softirqs last enabled at (524980): [] __do_softirq+0x68b/0x9ff kernel/softirq.c:314 softirqs last disabled at (524985): [] 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/1/17: #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: 1 PID: 17 Comm: ksoftirqd/1 Not tainted 4.14.307-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/16/2023 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 overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. attempt to access beyond end of device loop0: rw=2049, want=45104, limit=40427 EXT4-fs (loop3): Unsupported blocksize for fs encryption overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. overlayfs: fs on 'file0' does not support file handles, falling back to index=off. overlayfs: fs on './file0' does not support file handles, falling back to index=off. EXT4-fs (loop3): Unsupported blocksize for fs encryption EXT4-fs (loop0): Unsupported blocksize for fs encryption audit: type=1804 audit(1677496778.564:10): pid=10110 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir1849725445/syzkaller.JfBJwA/28/bus" dev="sda1" ino=14027 res=1 audit: type=1800 audit(1677496778.564:11): pid=10110 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="bus" dev="sda1" ino=14027 res=0 EXT4-fs (loop3): Unsupported blocksize for fs encryption print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 6 Buffer I/O error on dev loop3, logical block 3, async page read EXT4-fs (loop0): Unsupported blocksize for fs encryption audit: type=1804 audit(1677496779.524:12): pid=10155 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir1849725445/syzkaller.JfBJwA/29/bus" dev="sda1" ino=14074 res=1 EXT4-fs (loop3): Unsupported blocksize for fs encryption audit: type=1800 audit(1677496779.524:13): pid=10155 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="bus" dev="sda1" ino=14074 res=0 print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, async page read print_req_error: I/O error, dev loop3, sector 6 Buffer I/O error on dev loop3, logical block 3, async page read EXT4-fs (loop0): Unsupported blocksize for fs encryption kvm: vcpu 0: requested 128 ns lapic timer period limited to 500000 ns EXT4-fs (loop4): Test dummy encryption mount option ignored EXT4-fs (loop4): Ignoring removed nomblk_io_submit option EXT4-fs (loop4): Unsupported blocksize for fs encryption audit: type=1804 audit(1677496780.574:14): pid=10231 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir1849725445/syzkaller.JfBJwA/30/bus" dev="sda1" ino=14078 res=1 EXT4-fs (loop4): Test dummy encryption mount option ignored audit: type=1800 audit(1677496780.574:15): pid=10231 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="bus" dev="sda1" ino=14078 res=0 EXT4-fs (loop4): Ignoring removed nomblk_io_submit option EXT4-fs (loop5): Test dummy encryption mount option ignored EXT4-fs (loop5): Ignoring removed nomblk_io_submit option EXT4-fs (loop5): Unsupported blocksize for fs encryption EXT4-fs (loop4): Unsupported blocksize for fs encryption EXT4-fs (loop5): Test dummy encryption mount option ignored EXT4-fs (loop5): Ignoring removed nomblk_io_submit option EXT4-fs (loop5): Unsupported blocksize for fs encryption EXT4-fs (loop4): Test dummy encryption mount option ignored EXT4-fs (loop4): Ignoring removed nomblk_io_submit option EXT4-fs (loop4): Unsupported blocksize for fs encryption EXT4-fs (loop5): Test dummy encryption mount option ignored EXT4-fs (loop5): Ignoring removed nomblk_io_submit option EXT4-fs (loop5): Unsupported blocksize for fs encryption kvm: vcpu 0: requested 128 ns lapic timer period limited to 500000 ns EXT4-fs (loop4): Test dummy encryption mount option ignored EXT4-fs (loop4): Ignoring removed nomblk_io_submit option EXT4-fs (loop4): Unsupported blocksize for fs encryption print_req_error: I/O error, dev loop4, sector 0 Buffer I/O error on dev loop4, logical block 0, async page read print_req_error: I/O error, dev loop4, sector 6 Buffer I/O error on dev loop4, logical block 3, async page read audit: type=1804 audit(1677496781.514:16): pid=10306 uid=0 auid=4294967295 ses=4294967295 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir1849725445/syzkaller.JfBJwA/31/bus" dev="sda1" ino=14082 res=1 audit: type=1800 audit(1677496781.514:17): pid=10306 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.2" name="bus" dev="sda1" ino=14082 res=0 kvm: vcpu 0: requested 128 ns lapic timer period limited to 500000 ns base_sock_release(ffff8880a3cbe500) sk=ffff888096910d40 base_sock_release(ffff888063be34c0) sk=ffff8880b4664b00 base_sock_release(ffff88808de591c0) sk=ffff888093c38d40 base_sock_release(ffff8880638084c0) sk=ffff88809b805140 EXT4-fs (loop5): Ignoring removed oldalloc option EXT4-fs (loop5): can't mount with dioread_nolock if block size != PAGE_SIZE audit: type=1800 audit(1677496786.174:18): pid=10596 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="bus" dev="sda1" ino=13878 res=0 audit: type=1800 audit(1677496786.174:19): pid=10596 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor.5" name="bus" dev="sda1" ino=13878 res=0 print_req_error: I/O error, dev loop5, sector 0 Buffer I/O error on dev loop5, logical block 0, async page read print_req_error: I/O error, dev loop5, sector 4 Buffer I/O error on dev loop5, logical block 2, async page read print_req_error: I/O error, dev loop5, sector 6 Buffer I/O error on dev loop5, logical block 3, async page read EXT4-fs (loop5): Ignoring removed oldalloc option