[ 73.555678][ T27] audit: type=1800 audit(1565430924.103:27): pid=10334 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 73.555703][ T27] audit: type=1800 audit(1565430924.103:28): pid=10334 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. [ 74.330166][ T27] audit: type=1800 audit(1565430924.923:29): pid=10334 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 [ 74.351810][ T27] audit: type=1800 audit(1565430924.923:30): pid=10334 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 '10.128.0.90' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 83.874146][T10487] Started in network mode [ 83.878617][T10487] Own node identity ff030000000000000000000000000001, cluster identity 4711 [ 83.887582][T10487] BUG: using smp_processor_id() in preemptible [00000000] code: syz-executor556/10487 [ 83.897261][T10487] caller is dst_cache_get+0x3d/0xb0 [ 83.902604][T10487] CPU: 1 PID: 10487 Comm: syz-executor556 Not tainted 5.3.0-rc3+ #125 [ 83.910938][T10487] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 83.920986][T10487] Call Trace: [ 83.924277][T10487] dump_stack+0x172/0x1f0 [ 83.928640][T10487] debug_smp_processor_id.cold+0x87/0x9d [ 83.934271][T10487] dst_cache_get+0x3d/0xb0 [ 83.938689][T10487] tipc_udp_xmit.isra.0+0xc4/0xb80 [ 83.943815][T10487] ? tipc_udp_addr2str+0x170/0x170 [ 83.948926][T10487] ? lock_downgrade+0x920/0x920 [ 83.953787][T10487] ? memcpy+0x46/0x50 [ 83.957816][T10487] ? __copy_skb_header+0x2e8/0x550 [ 83.962930][T10487] ? bearer_get+0x16e/0x350 [ 83.967424][T10487] ? __kasan_check_read+0x11/0x20 [ 83.972444][T10487] ? mark_held_locks+0xf0/0xf0 [ 83.977202][T10487] ? lock_downgrade+0x920/0x920 [ 83.982044][T10487] tipc_udp_send_msg+0x3ea/0x490 [ 83.986979][T10487] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 83.993217][T10487] tipc_bearer_xmit_skb+0x17e/0x370 [ 83.998433][T10487] tipc_enable_bearer+0xacf/0xd30 [ 84.003467][T10487] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 84.009360][T10487] ? tipc_bearer_xmit_skb+0x370/0x370 [ 84.014735][T10487] ? nla_memcpy+0xb0/0xb0 [ 84.019062][T10487] __tipc_nl_bearer_enable+0x2de/0x3a0 [ 84.024517][T10487] ? __tipc_nl_bearer_enable+0x2de/0x3a0 [ 84.030274][T10487] ? tipc_nl_bearer_disable+0x40/0x40 [ 84.035642][T10487] ? nla_memcpy+0xb0/0xb0 [ 84.039970][T10487] ? lock_acquire+0x190/0x410 [ 84.044660][T10487] tipc_nl_bearer_enable+0x23/0x40 [ 84.049767][T10487] genl_family_rcv_msg+0x74b/0xf90 [ 84.054877][T10487] ? genl_unregister_family+0x7b0/0x7b0 [ 84.060527][T10487] ? __alloc_skb+0x10b/0x5e0 [ 84.065113][T10487] ? netlink_sendmsg+0x972/0xd60 [ 84.070050][T10487] ? sock_sendmsg+0xd7/0x130 [ 84.074845][T10487] ? ___sys_sendmsg+0x803/0x920 [ 84.079787][T10487] ? __x64_sys_sendmsg+0x78/0xb0 [ 84.085168][T10487] ? __netlink_lookup+0x3fa/0x7b0 [ 84.090194][T10487] ? __kasan_check_read+0x11/0x20 [ 84.095223][T10487] genl_rcv_msg+0xca/0x170 [ 84.099663][T10487] netlink_rcv_skb+0x177/0x450 [ 84.104428][T10487] ? genl_family_rcv_msg+0xf90/0xf90 [ 84.109711][T10487] ? netlink_ack+0xb30/0xb30 [ 84.114299][T10487] ? __kasan_check_write+0x14/0x20 [ 84.120088][T10487] ? netlink_deliver_tap+0x254/0xbf0 [ 84.125376][T10487] genl_rcv+0x29/0x40 [ 84.129387][T10487] netlink_unicast+0x531/0x710 [ 84.134156][T10487] ? netlink_attachskb+0x7c0/0x7c0 [ 84.139358][T10487] ? _copy_from_iter_full+0x25d/0x8a0 [ 84.144729][T10487] ? __sanitizer_cov_trace_cmp8+0x18/0x20 [ 84.150446][T10487] ? __check_object_size+0x3d/0x43c [ 84.155668][T10487] netlink_sendmsg+0x8a5/0xd60 [ 84.160442][T10487] ? netlink_unicast+0x710/0x710 [ 84.165379][T10487] ? aa_sock_msg_perm.isra.0+0xba/0x170 [ 84.170984][T10487] ? apparmor_socket_sendmsg+0x2a/0x30 [ 84.176445][T10487] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 84.182690][T10487] ? security_socket_sendmsg+0x8d/0xc0 [ 84.188142][T10487] ? netlink_unicast+0x710/0x710 [ 84.193088][T10487] sock_sendmsg+0xd7/0x130 [ 84.197511][T10487] ___sys_sendmsg+0x803/0x920 [ 84.202198][T10487] ? copy_msghdr_from_user+0x440/0x440 [ 84.207654][T10487] ? __kasan_check_write+0x14/0x20 [ 84.212760][T10487] ? lock_downgrade+0x920/0x920 [ 84.217737][T10487] ? debug_object_active_state+0x105/0x350 [ 84.223545][T10487] ? trace_hardirqs_on+0x67/0x240 [ 84.230676][T10487] ? __kasan_check_read+0x11/0x20 [ 84.235701][T10487] ? _raw_spin_unlock_irqrestore+0xa4/0xe0 [ 84.241506][T10487] ? debug_object_active_state+0x28a/0x350 [ 84.247310][T10487] ? debug_object_deactivate+0x320/0x320 [ 84.252950][T10487] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 84.259190][T10487] ? __fget_light+0x1a9/0x230 [ 84.263856][T10487] ? __fdget+0x1b/0x20 [ 84.268030][T10487] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 84.274273][T10487] __sys_sendmsg+0x105/0x1d0 [ 84.278866][T10487] ? __sys_sendmsg_sock+0xd0/0xd0 [ 84.283881][T10487] ? task_work_run+0x63/0x1c0 [ 84.288557][T10487] ? switch_fpu_return+0x1fa/0x4f0 [ 84.293673][T10487] ? entry_SYSCALL_64_after_hwframe+0x3e/0xbe [ 84.299734][T10487] __x64_sys_sendmsg+0x78/0xb0 [ 84.304514][T10487] do_syscall_64+0xfd/0x6a0 [ 84.309016][T10487] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 84.314914][T10487] RIP: 0033:0x444359 [ 84.318836][T10487] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 1b d8 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 84.338431][T10487] RSP: 002b:00007ffd054e0c38 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 84.346838][T10487] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444359 [ 84.354821][T10487] RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 [ 84.362809][T10487] RBP: 00000000006ce018 R08: 0000000000000044 R09: 00000000004002e0 [ 84.370776][T10487] R10: 0000000000000001 R11: 0000000000000246