[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 12.551442] audit: type=1400 audit(1514682093.127:6): avc: denied { map } for pid=3169 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.242' (ECDSA) to the list of known hosts. net.ipv6.conf.syz0.accept_dad = 0 net.ipv6.conf.syz0.router_solicitations = 0 syzkaller login: [ 18.751697] audit: type=1400 audit(1514682099.327:7): avc: denied { map } for pid=3183 comm="syzkaller177048" path="/root/syzkaller177048444" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 executing program [ 18.863302] [ 18.865575] audit: type=1400 audit(1514682099.436:8): avc: denied { create } for pid=3183 comm="syzkaller177048" 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 [ 18.865593] audit: type=1400 audit(1514682099.438:9): avc: denied { write } for pid=3183 comm="syzkaller177048" path="socket:[10926]" dev="sockfs" ino=10926 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 [ 18.918083] ============================= [ 18.923078] WARNING: suspicious RCU usage [ 18.927265] 4.15.0-rc5+ #170 Not tainted [ 18.931348] ----------------------------- [ 18.935498] net/tipc/bearer.c:177 suspicious rcu_dereference_protected() usage! [ 18.942934] [ 18.942934] other info that might help us debug this: [ 18.942934] [ 18.951104] [ 18.951104] rcu_scheduler_active = 2, debug_locks = 1 [ 18.957775] 2 locks held by syzkaller177048/3183: [ 18.962612] #0: (cb_lock){++++}, at: [<00000000207920d7>] genl_rcv+0x19/0x40 [ 18.970128] #1: (genl_mutex){+.+.}, at: [<00000000e1c96fbd>] genl_rcv_msg+0x115/0x140 [ 18.978320] [ 18.978320] stack backtrace: [ 18.982813] CPU: 1 PID: 3183 Comm: syzkaller177048 Not tainted 4.15.0-rc5+ #170 [ 18.990224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 18.999550] Call Trace: [ 19.002107] dump_stack+0x194/0x257 [ 19.005706] ? arch_local_irq_restore+0x53/0x53 [ 19.010356] lockdep_rcu_suspicious+0x123/0x170 [ 19.015000] tipc_bearer_find+0x2b4/0x3b0 [ 19.019121] ? tipc_media_addr_printf+0x3a0/0x3a0 [ 19.023945] tipc_nl_compat_link_set+0x329/0x9f0 [ 19.028674] tipc_nl_compat_doit+0x15b/0x660 [ 19.033140] ? security_capable+0x8e/0xc0 [ 19.037261] ? tipc_nl_compat_link_stat_dump+0x3000/0x3000 [ 19.042862] ? ns_capable_common+0xcf/0x160 [ 19.047152] ? ns_capable+0x22/0x30 [ 19.050850] ? __netlink_ns_capable+0xe1/0x120 [ 19.055491] tipc_nl_compat_recv+0x112f/0x18f0 [ 19.060047] ? tipc_nl_compat_doit+0x660/0x660 [ 19.064597] ? check_noncircular+0x20/0x20 [ 19.068797] ? tipc_nl_node_dump+0x1280/0x1280 [ 19.073345] ? tipc_nl_compat_bearer_enable+0x5c0/0x5c0 [ 19.078679] ? trace_hardirqs_on+0xd/0x10 [ 19.082817] genl_family_rcv_msg+0x7b7/0xfb0 [ 19.087206] ? genl_rcv+0x40/0x40 [ 19.090626] ? lock_downgrade+0x980/0x980 [ 19.094747] ? lock_release+0xa40/0xa40 [ 19.098692] ? __lock_is_held+0xb6/0x140 [ 19.102725] ? lock_acquire+0x1d5/0x580 [ 19.106682] genl_rcv_msg+0xb2/0x140 [ 19.110381] netlink_rcv_skb+0x21e/0x460 [ 19.114411] ? genl_family_rcv_msg+0xfb0/0xfb0 [ 19.118967] ? netlink_ack+0xa10/0xa10 [ 19.122835] ? genl_rcv+0x19/0x40 [ 19.126258] ? netlink_skb_destructor+0x1d0/0x1d0 [ 19.131073] ? selinux_nlmsg_lookup+0x32b/0x430 [ 19.135715] genl_rcv+0x28/0x40 [ 19.138963] netlink_unicast+0x4be/0x6a0 [ 19.142998] ? netlink_attachskb+0x8a0/0x8a0 [ 19.147385] ? security_netlink_send+0x81/0xb0 [ 19.151937] netlink_sendmsg+0xa4a/0xe60 [ 19.155973] ? netlink_unicast+0x6a0/0x6a0 [ 19.160184] ? security_socket_sendmsg+0x89/0xb0 [ 19.164908] ? netlink_unicast+0x6a0/0x6a0 [ 19.169112] sock_sendmsg+0xca/0x110 [ 19.172811] sock_write_iter+0x31a/0x5d0 [ 19.176845] ? sock_sendmsg+0x110/0x110 [ 19.180798] ? iov_iter_init+0xaf/0x1d0 [ 19.184747] __vfs_write+0x684/0x970 [ 19.188440] ? kernel_read+0x120/0x120 [ 19.192293] ? bpf_fd_pass+0x280/0x280 [ 19.196154] ? _cond_resched+0x14/0x30 [ 19.200025] ? selinux_file_permission+0x82/0x460 [ 19.204847] ? rw_verify_area+0xe5/0x2b0 [ 19.208874] ? __fdget_raw+0x20/0x20 [ 19.212558] vfs_write+0x189/0x510 [ 19.216077] SyS_write+0xef/0x220 [ 19.219496] ? SyS_socket+0x12d/0x1d0 [ 19.223271] ? SyS_read+0x220/0x220 [ 19.226863] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 19.231848] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 19.236578] entry_SYSCALL_64_fastpath+0x1f/0x96 [ 19.241299] RIP: 0033:0x444aa9 [ 19.244454] RSP: 002b:00007ffec9699848 EFLAGS: 00000207 ORIG_RAX: 0000000000000001 [ 19.252125] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000444aa9 [ 19.259361] RDX: 0000000000000029 RSI: 000000002060be48 RDI: 00000