[ 92.875021][ T27] audit: type=1400 audit(1581191614.123:37): avc: denied { watch } for pid=10482 comm="restorecond" path="/root/.ssh" dev="sda1" ino=16179 scontext=system_u:system_r:kernel_t:s0 tcontext=unconfined_u:object_r:ssh_home_t:s0 tclass=dir permissive=1 [ 92.899507][ T27] audit: type=1400 audit(1581191614.123:38): avc: denied { watch } for pid=10482 comm="restorecond" path="/etc/selinux/restorecond.conf" dev="sda1" ino=2232 scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 93.164299][ T27] audit: type=1800 audit(1581191614.413:39): pid=10395 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 96.430746][ T27] kauditd_printk_skb: 1 callbacks suppressed [ 96.430761][ T27] audit: type=1400 audit(1581191617.683:41): avc: denied { map } for pid=10573 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 '10.128.0.19' (ECDSA) to the list of known hosts. executing program [ 103.334052][ T27] audit: type=1400 audit(1581191624.583:42): avc: denied { map } for pid=10585 comm="syz-executor412" path="/root/syz-executor412641081" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 103.350093][T10586] IPVS: ftp: loaded support on port[0] = 21 [ 103.426807][ C1] [ 103.429168][ C1] ================================ [ 103.434268][ C1] WARNING: inconsistent lock state [ 103.439371][ C1] 5.5.0-syzkaller #0 Not tainted [ 103.444296][ C1] -------------------------------- [ 103.449384][ C1] inconsistent {SOFTIRQ-ON-W} -> {IN-SOFTIRQ-W} usage. [ 103.456369][ C1] swapper/1/0 [HC0[0]:SC1[1]:HE1:SE0] takes: [ 103.462326][ C1] ffff88809529a1c8 (&(&local->client_conns_lock)->rlock){+.?.}, at: rxrpc_put_client_conn+0x6ed/0xc90 [ 103.473263][ C1] {SOFTIRQ-ON-W} state was registered at: [ 103.478985][ C1] lock_acquire+0x190/0x410 [ 103.483566][ C1] _raw_spin_lock+0x2f/0x40 [ 103.488141][ C1] rxrpc_connect_call+0x358/0x4e30 [ 103.493357][ C1] rxrpc_new_client_call+0x9c0/0x1ad0 [ 103.498805][ C1] rxrpc_do_sendmsg+0xffa/0x1d5f [ 103.503883][ C1] rxrpc_sendmsg+0x4d6/0x5f0 [ 103.508629][ C1] sock_sendmsg+0xd7/0x130 [ 103.513110][ C1] ____sys_sendmsg+0x358/0x880 [ 103.517948][ C1] ___sys_sendmsg+0x100/0x170 [ 103.522688][ C1] __sys_sendmmsg+0x1bf/0x4d0 [ 103.527441][ C1] __x64_sys_sendmmsg+0x9d/0x100 [ 103.532458][ C1] do_syscall_64+0xfa/0x790 [ 103.537041][ C1] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 103.543020][ C1] irq event stamp: 188038 [ 103.547354][ C1] hardirqs last enabled at (188038): [] _raw_spin_unlock_irqrestore+0x66/0xe0 [ 103.557836][ C1] hardirqs last disabled at (188037): [] _raw_spin_lock_irqsave+0x6f/0xcd [ 103.568007][ C1] softirqs last enabled at (187862): [] _local_bh_enable+0x1c/0x30 [ 103.577539][ C1] softirqs last disabled at (187863): [] irq_exit+0x19b/0x1e0 [ 103.586715][ C1] [ 103.586715][ C1] other info that might help us debug this: [ 103.594898][ C1] Possible unsafe locking scenario: [ 103.594898][ C1] [ 103.602330][ C1] CPU0 [ 103.605595][ C1] ---- [ 103.608857][ C1] lock(&(&local->client_conns_lock)->rlock); [ 103.614986][ C1] [ 103.618533][ C1] lock(&(&local->client_conns_lock)->rlock); [ 103.624843][ C1] [ 103.624843][ C1] *** DEADLOCK *** [ 103.624843][ C1] [ 103.632985][ C1] 1 lock held by swapper/1/0: [ 103.637635][ C1] #0: ffffffff89bac140 (rcu_callback){....}, at: rcu_core+0x562/0x1390 [ 103.646059][ C1] [ 103.646059][ C1] stack backtrace: [ 103.651943][ C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.5.0-syzkaller #0 [ 103.660169][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 103.670228][ C1] Call Trace: [ 103.673501][ C1] [ 103.676436][ C1] dump_stack+0x197/0x210 [ 103.680753][ C1] print_usage_bug.cold+0x327/0x378 [ 103.685948][ C1] mark_lock+0xbb4/0x1220 [ 103.690271][ C1] ? kfree+0x10a/0x2c0 [ 103.694327][ C1] ? check_usage_backwards+0x330/0x330 [ 103.699772][ C1] ? __nf_hook_entries_free+0x31/0x40 [ 103.705138][ C1] __lock_acquire+0x1e8e/0x4a00 [ 103.709972][ C1] ? find_held_lock+0x35/0x130 [ 103.714727][ C1] ? __kasan_check_read+0x11/0x20 [ 103.719765][ C1] ? mark_lock+0xc2/0x1220 [ 103.724241][ C1] ? mark_held_locks+0xf0/0xf0 [ 103.728983][ C1] ? _raw_spin_unlock_irqrestore+0x66/0xe0 [ 103.734782][ C1] lock_acquire+0x190/0x410 [ 103.739310][ C1] ? rxrpc_put_client_conn+0x6ed/0xc90 [ 103.744823][ C1] _raw_spin_lock+0x2f/0x40 [ 103.749307][ C1] ? rxrpc_put_client_conn+0x6ed/0xc90 [ 103.754758][ C1] rxrpc_put_client_conn+0x6ed/0xc90 [ 103.760026][ C1] ? rxrpc_rcu_destroy_call+0xbd/0x200 [ 103.765628][ C1] rxrpc_rcu_destroy_call+0xbd/0x200 [ 103.770910][ C1] rcu_core+0x5e1/0x1390 [ 103.775215][ C1] ? __rcu_read_unlock+0x700/0x700 [ 103.780316][ C1] ? rcu_read_lock_sched_held+0x9c/0xd0 [ 103.785857][ C1] ? rcu_read_lock_any_held.part.0+0x50/0x50 [ 103.791843][ C1] ? run_rebalance_domains+0x227/0x2d0 [ 103.797378][ C1] rcu_core_si+0x9/0x10 [ 103.801514][ C1] __do_softirq+0x262/0x98c [ 103.805995][ C1] ? sched_clock_cpu+0x1b/0x1b0 [ 103.811009][ C1] irq_exit+0x19b/0x1e0 [ 103.815160][ C1] smp_apic_timer_interrupt+0x1a3/0x610 [ 103.820699][ C1] apic_timer_interrupt+0xf/0x20 [ 103.825618][ C1] [ 103.828611][ C1] RIP: 0010:native_safe_halt+0xe/0x10 [ 103.834010][ C1] Code: d8 66 c6 f9 eb 8a cc cc cc cc cc cc e9 07 00 00 00 0f 00 2d d4 c9 5a 00 f4 c3 66 90 e9 07 00 00 00 0f 00 2d c4 c9 5a 00 fb f4 cc 55 48 89 e5 41 57 41 56 41 55 41 54 53 e8 0e 26 75 f9 e8 09 [ 103.853720][ C1] RSP: 0018:ffffc90000d3fd68 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 [ 103.862301][ C1] RAX: 1ffffffff1367612 RBX: ffff8880a9a0a340 RCX: 0000000000000000 [ 103.870331][ C1] RDX: dffffc0000000000 RSI: 0000000000000006 RDI: ffff8880a9a0abd4 [ 103.878290][ C1] RBP: ffffc90000d3fd98 R08: ffff8880a9a0a340 R09: 0000000000000000 [ 103.886262][ C1] R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000 [ 103.894248][ C1] R13: ffffffff8aa58b80 R14: 0000000000000000 R15: 0000000000000001 [ 103.902230][ C1] ? default_idle+0x4e/0x360 [ 103.906913][ C1] arch_cpu_idle+0xa/0x10 [ 103.911339][ C1] default_idle_call+0x84/0xb0 [ 103.916084][ C1] do_idle+0x3c8/0x6e0 [ 103.920149][ C1] ? arch_cpu_idle_exit+0x80/0x80 [ 103.925161][ C1] ? _raw_spin_unlock_irqr