[ 46.581951] audit: type=1800 audit(1582249298.495:30): pid=8085 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2490 res=0
[....] Starting periodic command scheduler: cron[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Starting mcstransd:
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[1G[[32m ok [39;49m8[?25h[?0c.
Debian GNU/Linux 7 syzkaller ttyS0
syzkaller login: [ 52.214239] kauditd_printk_skb: 4 callbacks suppressed
[ 52.214254] audit: type=1400 audit(1582249304.165:35): avc: denied { map } for pid=8258 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1
Warning: Permanently added '10.128.10.61' (ECDSA) to the list of known hosts.
executing program
[ 59.139330] audit: type=1400 audit(1582249311.095:36): avc: denied { map } for pid=8270 comm="syz-executor076" path="/root/syz-executor076619099" dev="sda1" ino=16484 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
[ 59.155857] IPVS: ftp: loaded support on port[0] = 21
[ 59.235992]
[ 59.237663] ================================
[ 59.242060] WARNING: inconsistent lock state
[ 59.246466] 4.19.105-syzkaller #0 Not tainted
[ 59.251381] --------------------------------
[ 59.255788] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage.
[ 59.261931] swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes:
[ 59.267190] 0000000011671795 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_client_conn+0x683/0xc20
[ 59.277560] {SOFTIRQ-ON-W} state was registered at:
[ 59.282577] lock_acquire+0x16f/0x3f0
[ 59.286470] _raw_spin_lock+0x2f/0x40
[ 59.290347] rxrpc_connect_call+0x351/0x4920
[ 59.294911] rxrpc_new_client_call+0x8e7/0x1880
[ 59.299659] rxrpc_do_sendmsg+0xfc3/0x1ca3
[ 59.304060] rxrpc_sendmsg+0x4a0/0x5b0
[ 59.308038] sock_sendmsg+0xd7/0x130
[ 59.311822] ___sys_sendmsg+0x3e2/0x920
[ 59.315866] __sys_sendmmsg+0x1bf/0x4e0
[ 59.319913] __x64_sys_sendmmsg+0x9d/0x100
[ 59.324234] do_syscall_64+0xfd/0x620
[ 59.328124] entry_SYSCALL_64_after_hwframe+0x49/0xbe
[ 59.333506] irq event stamp: 158078
[ 59.337255] hardirqs last enabled at (158078): [<ffffffff87549a3b>] _raw_spin_unlock_irqrestore+0x6b/0xe0
[ 59.347191] hardirqs last disabled at (158077): [<ffffffff87549ccf>] _raw_spin_lock_irqsave+0x6f/0xcd
[ 59.356653] softirqs last enabled at (157970): [<ffffffff813fdc3c>] _local_bh_enable+0x1c/0x30
[ 59.365575] softirqs last disabled at (157971): [<ffffffff814007c0>] irq_exit+0x180/0x1d0
[ 59.374751]
[ 59.374751] other info that might help us debug this:
[ 59.381520] Possible unsafe locking scenario:
[ 59.381520]
[ 59.388361] CPU0
[ 59.390922] ----
[ 59.393516] lock(&(&local->client_conns_lock)->rlock);
[ 59.399072] <Interrupt>
[ 59.401821] lock(&(&local->client_conns_lock)->rlock);
[ 59.407604]
[ 59.407604] *** DEADLOCK ***
[ 59.407604]
[ 59.413683] 1 lock held by swapper/1/0:
[ 59.417650] #0: 000000003409cfee (rcu_callback){....}, at: rcu_process_callbacks+0xc79/0x1a30
[ 59.426414]
[ 59.426414] stack backtrace:
[ 59.430904] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.19.105-syzkaller #0
[ 59.438863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 59.448213] Call Trace:
[ 59.450786] <IRQ>
[ 59.452942] dump_stack+0x197/0x210
[ 59.456587] print_usage_bug.cold+0x330/0x42a
[ 59.461197] ? save_stack_trace+0x1a/0x20
[ 59.465340] mark_lock+0xd1b/0x1370
[ 59.468957] ? check_usage_backwards+0x340/0x340
[ 59.473705] __lock_acquire+0xc62/0x49c0
[ 59.477757] ? mark_held_locks+0x100/0x100
[ 59.481985] ? __kasan_slab_free+0x102/0x150
[ 59.486385] ? kasan_slab_free+0xe/0x10
[ 59.490340] ? kmem_cache_free+0x86/0x260
[ 59.494479] ? put_cred_rcu+0x2b6/0x4b0
[ 59.498456] ? mark_held_locks+0x100/0x100
[ 59.502711] ? find_held_lock+0x35/0x130
[ 59.506771] ? debug_object_deactivate+0x1e4/0x360
[ 59.511762] ? mark_held_locks+0x100/0x100
[ 59.516124] ? debug_object_deactivate+0x1e4/0x360
[ 59.521052] ? _raw_spin_unlock_irqrestore+0x6b/0xe0
[ 59.526155] ? lockdep_hardirqs_on+0x19b/0x5d0
[ 59.530727] lock_acquire+0x16f/0x3f0
[ 59.534517] ? rxrpc_put_client_conn+0x683/0xc20
[ 59.539259] _raw_spin_lock+0x2f/0x40
[ 59.543078] ? rxrpc_put_client_conn+0x683/0xc20
[ 59.547816] rxrpc_put_client_conn+0x683/0xc20
[ 59.552394] ? rxrpc_rcu_destroy_call+0xbd/0x200
[ 59.557147] ? rxrpc_process_call.cold+0x20/0x20
[ 59.562070] rxrpc_rcu_destroy_call+0xbd/0x200
[ 59.566656] rcu_process_callbacks+0xba0/0x1a30
[ 59.571316] ? __rcu_read_unlock+0x170/0x170
[ 59.575713] __do_softirq+0x25c/0x921
[ 59.579500] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 59.585021] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[ 59.590545] irq_exit+0x180/0x1d0
[ 59.594000] smp_apic_timer_interrupt+0x13b/0x550
[ 59.598844] apic_timer_interrupt+0xf/0x20
[ 59.603062] </IRQ>
[ 59.605280] RIP: 0010:native_safe_halt+0xe/0x10
[ 59.609933] Code: ff ff 48 89 df e8 92 f8 4d fa eb 82 e9 07 00 00 00 0f 00 2d 74 61 53 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d 64 61 53 00 fb f4 <c3> 90 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 be cc 04 fa e8 d9
[ 59.628830] RSP: 0018:ffff8880aa3b7d08 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13
[ 59.636539] RAX: 1ffffffff11e4ad4 RBX: ffff8880aa3a43c0 RCX: 0000000000000000
[ 59.643800] RDX: dffffc0000000000 RSI: 0000000000000001 RDI: ffff8880aa3a4c3c
[ 59.651068] RBP: ffff8880aa3b7d38 R08: ffff8880aa3a43c0 R09: 0000000000000000
[ 59.658347] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001
[ 59.665619] R13: ffffffff88f25690 R14: 0000000000000000 R15: ffff8880aa3a43c0
[ 59.672913] ? default_idle+0x4e/0x320
[ 59.676856] arch_cpu_idle+0xa/0x10
[ 59.680507] default_idle_call+0x36/0x90
[ 59.684566] do_idle+0x30c/0x4d0
[ 5