validate_nla: 10 callbacks suppressed netlink: 'syz-executor1': attribute type 1 has an invalid length. ============================= WARNING: suspicious RCU usage FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 0 4.15.0+ #222 Not tainted CPU: 1 PID: 9747 Comm: syz-executor1 Not tainted 4.15.0+ #222 ----------------------------- Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 ./include/linux/rcupdate.h:302 Illegal context switch in RCU read-side critical section! fail_dump lib/fault-inject.c:51 [inline] should_fail+0x8c0/0xa40 lib/fault-inject.c:149 other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor3/9751: should_failslab+0xec/0x120 mm/failslab.c:32 slab_pre_alloc_hook mm/slab.h:422 [inline] slab_alloc_node mm/slab.c:3286 [inline] kmem_cache_alloc_node+0x56/0x760 mm/slab.c:3629 #0: __alloc_skb+0xf1/0x780 net/core/skbuff.c:193 ( alloc_skb include/linux/skbuff.h:983 [inline] nlmsg_new include/net/netlink.h:511 [inline] netlink_ack+0x283/0xa10 net/netlink/af_netlink.c:2376 rcu_read_lock ){....} netlink_rcv_skb+0x2b4/0x380 net/netlink/af_netlink.c:2448 , at: [<00000000d70fa598>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 stack backtrace: rtnetlink_rcv+0x1c/0x20 net/core/rtnetlink.c:4653 netlink_unicast_kernel net/netlink/af_netlink.c:1308 [inline] netlink_unicast+0x4c4/0x6b0 net/netlink/af_netlink.c:1334 netlink_sendmsg+0xa4a/0xe60 net/netlink/af_netlink.c:1897 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 ___sys_sendmsg+0x767/0x8b0 net/socket.c:2046 __sys_sendmsg+0xe5/0x210 net/socket.c:2080 SYSC_sendmsg net/socket.c:2091 [inline] SyS_sendmsg+0x2d/0x50 net/socket.c:2087 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007f600ac15c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f600ac166d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 0000000020295fc8 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000014 R13: 00000000000004b3 R14: 00000000006f7168 R15: 0000000000000002 CPU: 0 PID: 9751 Comm: syz-executor3 Not tainted 4.15.0+ #222 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 lockdep_rcu_suspicious+0x123/0x170 kernel/locking/lockdep.c:4592 rcu_preempt_sleep_check include/linux/rcupdate.h:301 [inline] ___might_sleep+0x385/0x470 kernel/sched/core.c:6093 __might_sleep+0x95/0x190 kernel/sched/core.c:6081 slab_pre_alloc_hook mm/slab.h:420 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc+0x2a2/0x760 mm/slab.c:3539 rds_tcp_conn_alloc+0xa7/0x4e0 net/rds/tcp.c:296 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227 rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007fcb44567c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fcb445686d4 RCX: 0000000000453a59 RDX: 0000000000000001 RSI: 0000000020a3cfff RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000020dfcff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 9751, name: syz-executor3 1 lock held by syz-executor3/9751: #0: (rcu_read_lock){....}, at: [<00000000d70fa598>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 0 PID: 9751 Comm: syz-executor3 Not tainted 4.15.0+ #222 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6128 __might_sleep+0x95/0x190 kernel/sched/core.c:6081 netlink: 'syz-executor1': attribute type 1 has an invalid length. slab_pre_alloc_hook mm/slab.h:420 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc+0x2a2/0x760 mm/slab.c:3539 rds_tcp_conn_alloc+0xa7/0x4e0 net/rds/tcp.c:296 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227 netlink: 'syz-executor1': attribute type 1 has an invalid length. rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 netlink: 'syz-executor5': attribute type 3 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor5': attribute type 3 has an invalid length. sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007fcb44567c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007fcb445686d4 RCX: 0000000000453a59 RDX: 0000000000000001 RSI: 0000000020a3cfff RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000020dfcff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 audit: type=1400 audit(1518412606.998:58): avc: denied { create } for pid=9798 comm="syz-executor4" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_iscsi_socket permissive=1 ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead netlink: 12 bytes leftover after parsing attributes in process `syz-executor1'. NFQUEUE: number of total queues is 0 xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables NFQUEUE: number of total queues is 0 netlink: 'syz-executor1': attribute type 1 has an invalid length. sctp: [Deprecated]: syz-executor0 (pid 9843) Use of int in maxseg socket option. Use struct sctp_assoc_value instead audit: type=1400 audit(1518412607.108:59): avc: denied { bind } for pid=9823 comm="syz-executor5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_netfilter_socket permissive=1 netlink: 'syz-executor1': attribute type 1 has an invalid length. sctp: [Deprecated]: syz-executor0 (pid 9849) Use of int in maxseg socket option. Use struct sctp_assoc_value instead netlink: 'syz-executor0': attribute type 21 has an invalid length. netlink: 4 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 'syz-executor1': attribute type 1 has an invalid length. Subscription rejected, illegal request Subscription rejected, illegal request netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor4'. ipt_CLUSTERIP: bad num_local_nodes 18 BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 10157, name: syz-executor0 1 lock held by syz-executor0/10157: #0: (rcu_read_lock){....}, at: [<00000000d70fa598>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 0 PID: 10157 Comm: syz-executor0 Tainted: G W 4.15.0+ #222 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6128 __might_sleep+0x95/0x190 kernel/sched/core.c:6081 slab_pre_alloc_hook mm/slab.h:420 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc_trace+0x299/0x740 mm/slab.c:3605 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] rds_loop_conn_alloc+0xc8/0x380 net/rds/loop.c:126 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227 rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007f634f96ec68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f634f96f6d4 RCX: 0000000000453a59 RDX: 0000000000000001 RSI: 0000000020218000 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000020af3ff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 audit: type=1400 audit(1518412608.754:60): avc: denied { write } for pid=10178 comm="syz-executor5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 Cannot find set identified by id 0 to match Cannot find set identified by id 0 to match device lo entered promiscuous mode dccp_xmit_packet: Payload too large (65423) for featneg. sctp: [Deprecated]: syz-executor2 (pid 10325) Use of int in max_burst socket option. Use struct sctp_assoc_value instead dccp_xmit_packet: Payload too large (65423) for featneg. dccp_close: ABORT with 65423 bytes unread Cannot find map_set index 0 as target Cannot find map_set index 0 as target ipt_CLUSTERIP: Please specify destination IP x_tables: ip_tables: DNAT target: used from hooks PREROUTING/POSTROUTING, but only usable from PREROUTING/OUTPUT ipt_CLUSTERIP: Please specify destination IP x_tables: ip_tables: DNAT target: used from hooks PREROUTING/POSTROUTING, but only usable from PREROUTING/OUTPUT netlink: 11 bytes leftover after parsing attributes in process `syz-executor7'. openvswitch: netlink: Flow key attr not present in new flow. netlink: 16 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor7'. openvswitch: netlink: Flow key attr not present in new flow. netlink: 16 bytes leftover after parsing attributes in process `syz-executor4'. validate_nla: 36 callbacks suppressed netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. netlink: 'syz-executor1': attribute type 1 has an invalid length. xt_addrtype: output interface limitation not valid in PREROUTING and INPUT ipt_CLUSTERIP: Please specify destination IP netlink: 4 bytes leftover after parsing attributes in process `syz-executor4'. ipt_CLUSTERIP: Please specify destination IP xt_addrtype: output interface limitation not valid in PREROUTING and INPUT netlink: 4 bytes leftover after parsing attributes in process `syz-executor4'. l2tp_core: tunl 2: fd 19 wrong protocol, got 1, expected 17 l2tp_core: tunl 2: fd 22 wrong protocol, got 1, expected 17 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=25164 sclass=netlink_route_socket pig=11287 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=25164 sclass=netlink_route_socket pig=11287 comm=syz-executor1 RDS: rds_bind could not find a transport for 224.0.0.2, load rds_tcp or rds_rdma? netlink: 180 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 180 bytes leftover after parsing attributes in process `syz-executor2'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=50405 sclass=netlink_route_socket pig=11432 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=50405 sclass=netlink_route_socket pig=11432 comm=syz-executor4 TCP: request_sock_TCP: Possible SYN flooding on port 20014. Sending cookies. Check SNMP counters. dccp_close: ABORT with 254 bytes unread sctp: [Deprecated]: syz-executor2 (pid 11516) Use of int in maxseg socket option. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor2 (pid 11523) Use of int in maxseg socket option. Use struct sctp_assoc_value instead SELinux: unrecognized netlink message: protocol=4 nlmsg_type=26 sclass=netlink_tcpdiag_socket pig=11621 comm=syz-executor1 audit: type=1400 audit(1518412614.082:61): avc: denied { read } for pid=11653 comm="syz-executor1" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=netlink_crypto_socket permissive=1 insert transport fail, errno -17 BUG: sleeping function called from invalid context at mm/slab.h:420 in_atomic(): 1, irqs_disabled(): 0, pid: 11779, name: syz-executor2 1 lock held by syz-executor2/11779: #0: (rcu_read_lock){....}, at: [<00000000d70fa598>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 0 PID: 11779 Comm: syz-executor2 Tainted: G W 4.15.0+ #222 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:53 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6128 __might_sleep+0x95/0x190 kernel/sched/core.c:6081 slab_pre_alloc_hook mm/slab.h:420 [inline] slab_alloc mm/slab.c:3365 [inline] kmem_cache_alloc_trace+0x299/0x740 mm/slab.c:3605 kmalloc include/linux/slab.h:512 [inline] kzalloc include/linux/slab.h:701 [inline] rds_loop_conn_alloc+0xc8/0x380 net/rds/loop.c:126 __rds_conn_create+0x112f/0x1b50 net/rds/connection.c:227 rds_conn_create_outgoing+0x3f/0x50 net/rds/connection.c:309 rds_sendmsg+0xda3/0x2390 net/rds/send.c:1126 sock_sendmsg_nosec net/socket.c:630 [inline] sock_sendmsg+0xca/0x110 net/socket.c:640 SYSC_sendto+0x361/0x5c0 net/socket.c:1747 SyS_sendto+0x40/0x50 net/socket.c:1715 do_syscall_64+0x282/0x940 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x26/0x9b RIP: 0033:0x453a59 RSP: 002b:00007f4e3061cc68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f4e3061d6d4 RCX: 0000000000453a59 RDX: 0000000000000000 RSI: 0000000020ea8000 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 0000000020dfcff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 audit: type=1400 audit(1518412615.141:62): avc: denied { setopt } for pid=11817 comm="syz-executor5" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:unlabeled_t:s0 tclass=socket permissive=1 xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables sock: process `syz-executor2' is using obsolete getsockopt SO_BSDCOMPAT