EXT4-fs (loop0): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop0): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop0): journal inode is deleted ================================ WARNING: inconsistent lock state 4.19.104-syzkaller #0 Not tainted -------------------------------- inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. syz-fuzzer/8051 [HC0[0]:SC1[1]:HE1:SE0] takes: 000000000a8e063c (rxrpc_conn_id_lock){+.?.}, at: spin_lock include/linux/spinlock.h:329 [inline] 000000000a8e063c (rxrpc_conn_id_lock){+.?.}, at: rxrpc_put_client_connection_id.part.0+0x19/0x70 net/rxrpc/conn_client.c:143 {SOFTIRQ-ON-W} state was registered at: lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] rxrpc_get_client_connection_id net/rxrpc/conn_client.c:114 [inline] rxrpc_alloc_client_connection net/rxrpc/conn_client.c:198 [inline] rxrpc_get_client_conn net/rxrpc/conn_client.c:345 [inline] rxrpc_connect_call+0x948/0x4920 net/rxrpc/conn_client.c:702 rxrpc_new_client_call+0x8e7/0x1880 net/rxrpc/call_object.c:291 rxrpc_new_client_call_for_sendmsg net/rxrpc/sendmsg.c:596 [inline] rxrpc_do_sendmsg+0xfc3/0x1ca3 net/rxrpc/sendmsg.c:652 rxrpc_sendmsg+0x4a0/0x5b0 net/rxrpc/af_rxrpc.c:593 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xd7/0x130 net/socket.c:632 ___sys_sendmsg+0x3e2/0x920 net/socket.c:2115 __sys_sendmmsg+0x1bf/0x4e0 net/socket.c:2210 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x9d/0x100 net/socket.c:2236 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe irq event stamp: 2672002 hardirqs last enabled at (2672002): [] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] hardirqs last enabled at (2672002): [] _raw_spin_unlock_irqrestore+0x6b/0xe0 kernel/locking/spinlock.c:184 hardirqs last disabled at (2672001): [] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] hardirqs last disabled at (2672001): [] _raw_spin_lock_irqsave+0x6f/0xcd kernel/locking/spinlock.c:152 softirqs last enabled at (2670874): [] __do_softirq+0x633/0x921 kernel/softirq.c:318 softirqs last disabled at (2671363): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (2671363): [] irq_exit+0x180/0x1d0 kernel/softirq.c:412 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(rxrpc_conn_id_lock); lock(rxrpc_conn_id_lock); *** DEADLOCK *** 1 lock held by syz-fuzzer/8051: #0: 00000000561df462 (rcu_callback){....}, at: __rcu_reclaim kernel/rcu/rcu.h:226 [inline] #0: 00000000561df462 (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2584 [inline] #0: 00000000561df462 (rcu_callback){....}, at: invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline] #0: 00000000561df462 (rcu_callback){....}, at: __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline] #0: 00000000561df462 (rcu_callback){....}, at: rcu_process_callbacks+0xc79/0x1a30 kernel/rcu/tree.c:2881 stack backtrace: CPU: 1 PID: 8051 Comm: syz-fuzzer Not tainted 4.19.104-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+0x330/0x42a kernel/locking/lockdep.c:2540 valid_state kernel/locking/lockdep.c:2553 [inline] mark_lock_irq kernel/locking/lockdep.c:2747 [inline] mark_lock+0xd1b/0x1370 kernel/locking/lockdep.c:3127 mark_irqflags kernel/locking/lockdep.c:3005 [inline] __lock_acquire+0xc62/0x49c0 kernel/locking/lockdep.c:3368 lock_acquire+0x16f/0x3f0 kernel/locking/lockdep.c:3903 __raw_spin_lock include/linux/spinlock_api_smp.h:142 [inline] _raw_spin_lock+0x2f/0x40 kernel/locking/spinlock.c:144 spin_lock include/linux/spinlock.h:329 [inline] rxrpc_put_client_connection_id.part.0+0x19/0x70 net/rxrpc/conn_client.c:143 rxrpc_put_client_connection_id include/linux/spinlock.h:370 [inline] rxrpc_put_one_client_conn net/rxrpc/conn_client.c:956 [inline] rxrpc_put_client_conn+0x6c6/0xc20 net/rxrpc/conn_client.c:1002 rxrpc_put_connection net/rxrpc/ar-internal.h:951 [inline] rxrpc_rcu_destroy_call+0xbd/0x200 net/rxrpc/call_object.c:657 __rcu_reclaim kernel/rcu/rcu.h:236 [inline] rcu_do_batch kernel/rcu/tree.c:2584 [inline] invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline] __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline] rcu_process_callbacks+0xba0/0x1a30 kernel/rcu/tree.c:2881 __do_softirq+0x25c/0x921 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x180/0x1d0 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x13b/0x550 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:893 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0x95/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 88 56 f2 88 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 39 48 83 3d 2a bc 9d 01 00 74 24 48 89 df 57 9d <0f> 1f 44 00 00 bf 01 00 00 00 e8 fc 02 f4 f9 65 8b 05 55 53 ad 78 RSP: 0018:ffff8880a92ef8a0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff11e4ad1 RBX: 0000000000000282 RCX: 0000000000000000 RDX: dffffc0000000000 RSI: 0000000000000001 RDI: 0000000000000282 RBP: ffff8880a92ef8b0 R08: ffff888080896580 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff8880ae925b80 R13: ffff8880a92efab8 R14: 0000000000025b80 R15: ffff8880ae925c00 unlock_hrtimer_base kernel/time/hrtimer.c:887 [inline] hrtimer_start_range_ns+0x65d/0xc70 kernel/time/hrtimer.c:1121 hrtimer_start_expires include/linux/hrtimer.h:412 [inline] futex_wait_queue_me+0x262/0x600 kernel/futex.c:2597 futex_wait+0x228/0x5e0 kernel/futex.c:2725 do_futex+0x175/0x1d70 kernel/futex.c:3692 __do_sys_futex kernel/futex.c:3753 [inline] __se_sys_futex kernel/futex.c:3721 [inline] __x64_sys_futex+0x400/0x590 kernel/futex.c:3721 do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45b153 Code: cc cc cc cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 4c 8b 54 24 18 4c 8b 44 24 20 44 8b 4c 24 28 b8 ca 00 00 00 0f 05 <89> 44 24 30 c3 cc cc cc cc cc cc cc cc 8b 7c 24 08 48 8b 74 24 10 RSP: 002b:000000c42004fe70 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045b153 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001e52c90 RBP: 000000c42004feb8 R08: 0000000000000000 R09: 0000000000000000 R10: 000000c42004fea8 R11: 0000000000000246 R12: 000000000042f0a0 R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000 netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended EXT4-fs (loop0): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop0): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock EXT4-fs (loop0): ext4_check_descriptors: Inode table for group 0 overlaps superblock netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop0): journal inode is deleted netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended EXT4-fs (loop0): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop0): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop0): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop0): journal inode is deleted netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. audit: type=1804 audit(1582078980.249:349): pid=28651 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir904617860/syzkaller.C4XU83/807/file0" dev="sda1" ino=17297 res=1 EXT4-fs (loop0): feature flags set on rev 0 fs, running e2fsck is recommended EXT4-fs (loop0): ext4_check_descriptors: Block bitmap for group 0 overlaps superblock EXT4-fs (loop0): ext4_check_descriptors: Inode bitmap for group 0 overlaps superblock netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'. EXT4-fs (loop0): ext4_check_descriptors: Inode table for group 0 overlaps superblock EXT4-fs (loop0): journal inode is deleted netlink: 4 bytes leftover after parsing attributes in process `syz-executor.3'.