[ 65.225498][ T24] audit: type=1800 audit(1565431492.400:27): pid=9683 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 65.253994][ T24] audit: type=1800 audit(1565431492.400:28): pid=9683 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 66.136370][ T24] audit: type=1800 audit(1565431493.380:29): pid=9683 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 66.158707][ T24] audit: type=1800 audit(1565431493.380:30): pid=9683 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.27' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 77.049893][ T9838] Started in network mode [ 77.054430][ T9838] Own node identity ff030000000000000000000000000001, cluster identity 4711 [ 77.063778][ T9838] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor039/9838 [ 77.074156][ T9838] caller is dst_cache_get+0x3d/0xb0 [ 77.080199][ T9838] CPU: 0 PID: 9838 Comm: syz-executor039 Not tainted 5.3.0-rc3+ #97 [ 77.088170][ T9838] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 77.098215][ T9838] Call Trace: [ 77.101516][ T9838] dump_stack+0x172/0x1f0 [ 77.106576][ T9838] debug_smp_processor_id.cold+0x87/0x9d [ 77.113004][ T9838] dst_cache_get+0x3d/0xb0 [ 77.118254][ T9838] tipc_udp_xmit.isra.0+0xc4/0xb80 [ 77.123377][ T9838] ? tipc_udp_addr2str+0x170/0x170 [ 77.128585][ T9838] ? lock_downgrade+0x920/0x920 [ 77.133545][ T9838] ? memcpy+0x46/0x50 [ 77.137537][ T9838] ? __copy_skb_header+0x2e8/0x550 [ 77.142735][ T9838] ? bearer_get+0x16e/0x350 [ 77.147234][ T9838] ? __kasan_check_read+0x11/0x20 [ 77.152368][ T9838] ? mark_held_locks+0xf0/0xf0 [ 77.157147][ T9838] ? lock_downgrade+0x920/0x920 [ 77.162248][ T9838] tipc_udp_send_msg+0x3ea/0x490 [ 77.167384][ T9838] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.173698][ T9838] tipc_bearer_xmit_skb+0x17e/0x370 [ 77.178971][ T9838] tipc_enable_bearer+0xacf/0xd30 [ 77.184043][ T9838] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 77.190347][ T9838] ? tipc_bearer_xmit_skb+0x370/0x370 [ 77.195775][ T9838] ? nla_memcpy+0xb0/0xb0 [ 77.200107][ T9838] __tipc_nl_bearer_enable+0x2de/0x3a0 [ 77.205652][ T9838] ? __tipc_nl_bearer_enable+0x2de/0x3a0 [ 77.211286][ T9838] ? tipc_nl_bearer_disable+0x40/0x40 [ 77.216739][ T9838] ? nla_memcpy+0xb0/0xb0 [ 77.221068][ T9838] ? lock_acquire+0x190/0x410 [ 77.225744][ T9838] tipc_nl_bearer_enable+0x23/0x40 [ 77.231150][ T9838] genl_family_rcv_msg+0x74b/0xf90 [ 77.236441][ T9838] ? genl_unregister_family+0x7b0/0x7b0 [ 77.242076][ T9838] ? __alloc_skb+0x10b/0x5e0 [ 77.246662][ T9838] ? netlink_sendmsg+0x972/0xd60 [ 77.251753][ T9838] ? sock_sendmsg+0xd7/0x130 [ 77.256440][ T9838] ? ___sys_sendmsg+0x803/0x920 [ 77.261279][ T9838] ? __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 77.267088][ T9838] ? __netlink_lookup+0x3fa/0x7b0 [ 77.272207][ T9838] ? __kasan_check_read+0x11/0x20 [ 77.277467][ T9838] genl_rcv_msg+0xca/0x170 [ 77.281945][ T9838] netlink_rcv_skb+0x177/0x450 [ 77.286713][ T9838] ? genl_family_rcv_msg+0xf90/0xf90 [ 77.292310][ T9838] ? netlink_ack+0xb30/0xb30 [ 77.296904][ T9838] ? __kasan_check_write+0x14/0x20 [ 77.301994][ T9838] ? netlink_deliver_tap+0x254/0xbf0 [ 77.307272][ T9838] genl_rcv+0x29/0x40 [ 77.311394][ T9838] netlink_unicast+0x531/0x710 [ 77.316158][ T9838] ? netlink_attachskb+0x7c0/0x7c0 [ 77.321810][ T9838] ? _copy_from_iter_full+0x25d/0x8a0 [ 77.328135][ T9838] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 77.334266][ T9838] ? __check_object_size+0x3d/0x43c [ 77.339464][ T9838] netlink_sendmsg+0x8a5/0xd60 [ 77.344489][ T9838] ? netlink_unicast+0x710/0x710 [ 77.350225][ T9838] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 77.356202][ T9838] ? apparmor_socket_sendmsg+0x2a/0x30 [ 77.361663][ T9838] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.367995][ T9838] ? security_socket_sendmsg+0x8d/0xc0 [ 77.373593][ T9838] ? netlink_unicast+0x710/0x710 [ 77.378623][ T9838] sock_sendmsg+0xd7/0x130 [ 77.383171][ T9838] ___sys_sendmsg+0x803/0x920 [ 77.388109][ T9838] ? copy_msghdr_from_user+0x440/0x440 [ 77.394221][ T9838] ? __kasan_check_write+0x14/0x20 [ 77.399660][ T9838] ? lock_downgrade+0x920/0x920 [ 77.404505][ T9838] ? debug_object_active_state+0x105/0x350 [ 77.410299][ T9838] ? trace_hardirqs_on+0x67/0x240 [ 77.415511][ T9838] ? __kasan_check_read+0x11/0x20 [ 77.420534][ T9838] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 77.426336][ T9838] ? debug_object_active_state+0x28a/0x350 [ 77.432407][ T9838] ? debug_object_deactivate+0x320/0x320 [ 77.438202][ T9838] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 77.444770][ T9838] ? __fget_light+0x1a9/0x230 [ 77.450177][ T9838] ? __fdget+0x1b/0x20 [ 77.454537][ T9838] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 77.461724][ T9838] __sys_sendmsg+0x105/0x1d0 [ 77.466656][ T9838] ? __sys_sendmsg_sock+0xd0/0xd0 [ 77.472332][ T9838] ? task_work_run+0x63/0x1c0 [ 77.477106][ T9838] ? switch_fpu_return+0x1fa/0x4f0 [ 77.482468][ T9838] ? kernel_fpu_begin+0x2f0/0x2f0 [ 77.487488][ T9838] ? entry_SYSENTER_compat+0x68/0x7f [ 77.492885][ T9838] __ia32_compat_sys_sendmsg+0x7a/0xb0 [ 77.498432][ T9838] do_fast_syscall_32+0x27b/0xdb3 [ 77.503439][ T9838] entry_SYSENTER_compat+0x70/0x7f [ 77.508710][ T9838] RIP: 0023:0xf7fc9a29 [ 77.512773][ T9838] Code: b8 80 96 98 00 eb cc 8b 04 24 c3 8b 1c 24 c3 8b 34 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 77.532956][ T9838] RSP: 002b:00000000ffeef85c EFLAGS: 00000246 ORIG_RAX: 0000000000000172 [ 77.541451][ T9838] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000020000000 [ 77.549530][ T9838] RDX: 0