Warning: Permanently added '10.128.10.9' (ECDSA) to the list of known hosts. [ 42.204207] random: sshd: uninitialized urandom read (32 bytes read) executing program [ 42.324999] audit: type=1400 audit(1571058330.888:36): avc: denied { map } for pid=6947 comm="syz-executor454" path="/root/syz-executor454936498" 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 [ 42.331229] [ 42.352002] audit: type=1400 audit(1571058330.888:37): avc: denied { create } for pid=6947 comm="syz-executor454" 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 [ 42.353063] ============================= [ 42.377303] audit: type=1400 audit(1571058330.888:38): avc: denied { write } for pid=6947 comm="syz-executor454" 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 [ 42.382472] WARNING: suspicious RCU usage [ 42.405672] audit: type=1400 audit(1571058330.888:39): avc: denied { read } for pid=6947 comm="syz-executor454" 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 [ 42.409815] 4.14.149 #0 Not tainted [ 42.437740] ----------------------------- [ 42.441948] net/tipc/bearer.c:177 suspicious rcu_dereference_protected() usage! [ 42.449404] [ 42.449404] other info that might help us debug this: [ 42.449404] [ 42.457677] [ 42.457677] rcu_scheduler_active = 2, debug_locks = 1 [ 42.464447] 2 locks held by syz-executor454/6947: [ 42.469321] #0: (cb_lock){++++}, at: [] genl_rcv+0x1a/0x40 [ 42.476935] #1: (genl_mutex){+.+.}, at: [] genl_rcv_msg+0x119/0x150 [ 42.485234] [ 42.485234] stack backtrace: [ 42.489984] CPU: 1 PID: 6947 Comm: syz-executor454 Not tainted 4.14.149 #0 [ 42.497002] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 42.506341] Call Trace: [ 42.508918] dump_stack+0x138/0x197 [ 42.512543] lockdep_rcu_suspicious+0x153/0x15d [ 42.517215] tipc_bearer_find+0x20a/0x300 [ 42.521376] tipc_nl_compat_link_set+0x433/0xbf0 [ 42.526142] tipc_nl_compat_doit+0x1a2/0x550 [ 42.530571] ? security_capable+0x8e/0xc0 [ 42.534698] ? tipc_nl_compat_link_stat_dump+0x2080/0x2080 [ 42.540303] ? ns_capable_common+0x12c/0x160 [ 42.544688] ? ns_capable+0x23/0x30 [ 42.548303] ? __netlink_ns_capable+0xe2/0x130 [ 42.552874] tipc_nl_compat_recv+0x9ec/0xb20 [ 42.557278] ? is_bpf_text_address+0xa6/0x120 [ 42.561776] ? tipc_nl_compat_doit+0x550/0x550 [ 42.566434] ? tipc_nl_node_dump+0xc90/0xc90 [ 42.570821] ? tipc_nl_compat_bearer_enable+0x570/0x570 [ 42.576174] ? lock_acquire+0x16f/0x430 [ 42.580164] ? genl_rcv_msg+0x119/0x150 [ 42.584130] ? genl_rcv_msg+0x119/0x150 [ 42.588089] genl_family_rcv_msg+0x614/0xc30 [ 42.592523] ? genl_unregister_family+0x6a0/0x6a0 [ 42.597405] genl_rcv_msg+0xb4/0x150 [ 42.601108] netlink_rcv_skb+0x14f/0x3c0 [ 42.605150] ? genl_family_rcv_msg+0xc30/0xc30 [ 42.610580] ? netlink_ack+0x9a0/0x9a0 [ 42.614454] ? genl_rcv+0x1a/0x40 [ 42.617889] genl_rcv+0x29/0x40 [ 42.621147] netlink_unicast+0x45d/0x640 [ 42.625187] ? netlink_attachskb+0x6a0/0x6a0 [ 42.629585] ? security_netlink_send+0x81/0xb0 [ 42.634153] netlink_sendmsg+0x7c4/0xc60 [ 42.638203] ? netlink_unicast+0x640/0x640 [ 42.642418] ? security_socket_sendmsg+0x89/0xb0 [ 42.647159] ? netlink_unicast+0x640/0x640 [ 42.651381] sock_sendmsg+0xce/0x110 [ 42.655082] ___sys_sendmsg+0x70a/0x840 [ 42.659051] ? copy_msghdr_from_user+0x3f0/0x3f0 [ 42.663801] ? __lock_acquire+0x5f7/0x4620 [ 42.668013] ? save_trace+0x290/0x290 [ 42.671795] ? trace_hardirqs_on+0x10/0x10 [ 42.676008] ? save_trace+0x290/0x290 [ 42.679794] ? lock_downgrade+0x740/0x740 [ 42.683927] ? task_work_run+0xf0/0x190 [ 42.687883] ? __fget_light+0x172/0x1f0 [ 42.691844] ? __fdget+0x1b/0x20 [ 42.695317] ? sockfd_lookup_light+0xb4/0x160 [ 42.699880] __sys_sendmsg+0xb9/0x140 [ 42.703659] ? SyS_shutdown+0x170/0x170 [ 42.707624] ? trace_hardirqs_on_caller+0x400/0x590 [ 42.712622] SyS_sendmsg+0x2d/0x50 [ 42.716200] ? __sys_sendmsg+0x140/0x140 [ 42.720279] do_syscall_64+0x1e8/0x640 [ 42.724153] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 42.728989] entry_SYSCALL_64_after_hwframe+0x42/0xb7 [ 42.734157] RIP: 0033:0x444149 [ 42.737334] RSP: 002b:00007ffcdf3d9678 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 42.745021] RAX: ffffffffffffffda RBX: 00000000004002e0 RCX: 0000000000444149 [ 42.752283] RDX: 0000000000000000 RSI: 00000000200002c0 RDI: 0000000000000003 [ 42.759544] RBP: 00000000006ce018 R08: 0000000000000000 R09: 00000000004002e0 [ 42.767947] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401df0 [ 42.775207] R13: 000