================================
WARNING: inconsistent lock state
4.19.104-syzkaller #0 Not tainted
--------------------------------
inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
udevd/25670 [HC0[0]:SC1[1]:HE1:SE0] takes:
0000000005c71b9f (rxrpc_conn_id_lock){+.?.}, at: spin_lock include/linux/spinlock.h:329 [inline]
0000000005c71b9f (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: 10465518
hardirqs last enabled at (10465518): [<ffffffff87549a3b>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last enabled at (10465518): [<ffffffff87549a3b>] _raw_spin_unlock_irqrestore+0x6b/0xe0 kernel/locking/spinlock.c:184
hardirqs last disabled at (10465517): [<ffffffff87549ccf>] __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
hardirqs last disabled at (10465517): [<ffffffff87549ccf>] _raw_spin_lock_irqsave+0x6f/0xcd kernel/locking/spinlock.c:152
softirqs last enabled at (10463834): [<ffffffff87800633>] __do_softirq+0x633/0x921 kernel/softirq.c:318
softirqs last disabled at (10465295): [<ffffffff814007c0>] invoke_softirq kernel/softirq.c:372 [inline]
softirqs last disabled at (10465295): [<ffffffff814007c0>] 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);
<Interrupt>
lock(rxrpc_conn_id_lock);
*** DEADLOCK ***
5 locks held by udevd/25670:
#0: 000000000c3bef80 (&dup_mmap_sem){++++}, at: dup_mmap kernel/fork.c:435 [inline]
#0: 000000000c3bef80 (&dup_mmap_sem){++++}, at: dup_mm kernel/fork.c:1288 [inline]
#0: 000000000c3bef80 (&dup_mmap_sem){++++}, at: copy_mm kernel/fork.c:1344 [inline]
#0: 000000000c3bef80 (&dup_mmap_sem){++++}, at: copy_process.part.0+0x2b90/0x7a60 kernel/fork.c:1897
#1: 00000000deed63f7 (&mm->mmap_sem){++++}, at: dup_mmap kernel/fork.c:436 [inline]
#1: 00000000deed63f7 (&mm->mmap_sem){++++}, at: dup_mm kernel/fork.c:1288 [inline]
#1: 00000000deed63f7 (&mm->mmap_sem){++++}, at: copy_mm kernel/fork.c:1344 [inline]
#1: 00000000deed63f7 (&mm->mmap_sem){++++}, at: copy_process.part.0+0x2bac/0x7a60 kernel/fork.c:1897
#2: 00000000c1d55f44 (&mm->mmap_sem/1){+.+.}, at: dup_mmap kernel/fork.c:445 [inline]
#2: 00000000c1d55f44 (&mm->mmap_sem/1){+.+.}, at: dup_mm kernel/fork.c:1288 [inline]
#2: 00000000c1d55f44 (&mm->mmap_sem/1){+.+.}, at: copy_mm kernel/fork.c:1344 [inline]
#2: 00000000c1d55f44 (&mm->mmap_sem/1){+.+.}, at: copy_process.part.0+0x2bf9/0x7a60 kernel/fork.c:1897
#3: 00000000c280412f (&selinux_ss.policy_rwlock){.+.?}, at: security_compute_av+0x67/0xb70 security/selinux/ss/services.c:1119
#4: 000000003da4b12f (rcu_callback){....}, at: __rcu_reclaim kernel/rcu/rcu.h:226 [inline]
#4: 000000003da4b12f (rcu_callback){....}, at: rcu_do_batch kernel/rcu/tree.c:2584 [inline]
#4: 000000003da4b12f (rcu_callback){....}, at: invoke_rcu_callbacks kernel/rcu/tree.c:2897 [inline]
#4: 000000003da4b12f (rcu_callback){....}, at: __rcu_process_callbacks kernel/rcu/tree.c:2864 [inline]
#4: 000000003da4b12f (rcu_callback){....}, at: rcu_process_callbacks+0xc79/0x1a30 kernel/rcu/tree.c:2881
stack backtrace:
CPU: 0 PID: 25670 Comm: udevd Not tainted 4.19.104-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
<IRQ>
__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
</IRQ>
RIP: 0010:avtab_hash security/selinux/ss/avtab.c:53 [inline]
RIP: 0010:avtab_search_node+0xf2/0x550 security/selinux/ss/avtab.c:228
Code: 48 8d 48 04 48 b8 00 00 00 00 00 fc ff df 48 89 ca 48 89 4d b0 48 c1 ea 03 0f b6 14 02 48 89 c8 83 e0 07 83 c0 01 38 d0 7c 08 <84> d2 0f 85 12 04 00 00 48 8b 4d d0 0f b7 41 04 48 83 c1 02 48 89
RSP: 0018:ffff888042caf658 EFLAGS: 00000206 ORIG_RAX: ffffffffffffff13
RAX: 0000000000000005 RBX: ffffffff8ad99550 RCX: ffff888042caf7cc
RDX: 0000000000000000 RSI: 0000000000001fff RDI: ffffffff8ad99560
RBP: ffff888042caf6b8 R08: ffff8880a17c6580 R09: ffff888042caf97c
R10: ffffed1008595f33 R11: ffff888042caf99b R12: ffff888099a60b40
R13: ffff8880994576c0 R14: dffffc0000000000 R15: ffff888042caf7c8
context_struct_compute_av+0x6c9/0x1590 security/selinux/ss/services.c:667
security_compute_av+0x40b/0xb70 security/selinux/ss/services.c:1152
avc_compute_av+0xf4/0x690 security/selinux/avc.c:1024
avc_has_perm_noaudit+0x324/0x570 security/selinux/avc.c:1167
cred_has_capability+0x16a/0x320 security/selinux/hooks.c:1822
selinux_vm_enough_memory+0x51/0x70 security/selinux/hooks.c:2419
security_vm_enough_memory_mm+0x4b/0xc0 security/security.c:328
dup_mmap kernel/fork.c:485 [inline]
dup_mm kernel/fork.c:1288 [inline]
copy_mm kernel/fork.c:1344 [inline]
copy_process.part.0+0x340b/0x7a60 kernel/fork.c:1897
copy_process kernel/fork.c:1694 [inline]
_do_fork+0x257/0xfd0 kernel/fork.c:2207
__do_sys_clone kernel/fork.c:2314 [inline]
__se_sys_clone kernel/fork.c:2308 [inline]
__x64_sys_clone+0xbf/0x150 kernel/fork.c:2308
do_syscall_64+0xfd/0x620 arch/x86/entry/common.c:293
entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f344e098f46
Code: f7 d8 64 89 04 25 d4 02 00 00 64 4c 8b 14 25 10 00 00 00 31 d2 49 81 c2 d0 02 00 00 31 f6 bf 11 00 20 01 b8 38 00 00 00 0f 05 <48> 3d 00 f0 ff ff 0f 87 31 01 00 00 85 c0 41 89 c4 0f 85 3b 01 00
RSP: 002b:00007fff6fa54e80 EFLAGS: 00000246 ORIG_RAX: 0000000000000038
RAX: ffffffffffffffda RBX: 00007fff6fa54e80 RCX: 00007f344e098f46
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000001200011
RBP: 00007fff6fa54ee0 R08: 0000000000006446 R09: 0000000000006446
R10: 00007f344e9b5a70 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6fa54ea0 R14: 0000000000000005 R15: 0000000000000005
kauditd_printk_skb: 159 callbacks suppressed
audit: type=1400 audit(2000001364.455:64432): avc: denied { map } for pid=2714 comm="blkid" path="/etc/ld.so.cache" dev="sda1" ino=2251 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001364.505:64433): avc: denied { map } for pid=2714 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001364.505:64434): avc: denied { map } for pid=2714 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001364.505:64435): avc: denied { write } for pid=2701 comm="syz-executor.4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
audit: type=1400 audit(2000001364.505:64436): avc: denied { map } for pid=2714 comm="blkid" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001364.515:64437): avc: denied { map } for pid=2714 comm="blkid" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001364.525:64438): avc: denied { map } for pid=2714 comm="blkid" path="/lib/x86_64-linux-gnu/libuuid.so.1.3.0" dev="sda1" ino=2819 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001364.565:64439): avc: denied { map } for pid=2714 comm="blkid" path="/lib/x86_64-linux-gnu/libuuid.so.1.3.0" dev="sda1" ino=2819 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001365.025:64440): avc: denied { map } for pid=2817 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001365.025:64441): avc: denied { map } for pid=2817 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
kauditd_printk_skb: 234 callbacks suppressed
audit: type=1400 audit(2000001369.465:64676): avc: denied { map } for pid=2908 comm="blkid" path="/etc/ld.so.cache" dev="sda1" ino=2251 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001369.475:64677): avc: denied { map } for pid=2908 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001369.475:64678): avc: denied { map } for pid=2908 comm="blkid" path="/lib/x86_64-linux-gnu/libblkid.so.1.1.0" dev="sda1" ino=2825 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001369.525:64679): avc: denied { map } for pid=2908 comm="blkid" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001369.535:64680): avc: denied { map } for pid=2908 comm="blkid" path="/lib/x86_64-linux-gnu/libc-2.13.so" dev="sda1" ino=2784 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001369.535:64681): avc: denied { map } for pid=2910 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001369.545:64682): avc: denied { map } for pid=2910 comm="blkid" path="/sbin/blkid" dev="sda1" ino=16128 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001369.545:64683): avc: denied { create } for pid=2909 comm="syz-executor.4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_generic_socket permissive=1
audit: type=1400 audit(2000001369.565:64684): avc: denied { map } for pid=2910 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
audit: type=1400 audit(2000001369.575:64685): avc: denied { map } for pid=2910 comm="blkid" path="/lib/x86_64-linux-gnu/ld-2.13.so" dev="sda1" ino=2668 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1