tmpfs: No value for mount option '' ============================= WARNING: suspicious RCU usage 4.16.0-rc1+ #309 Not tainted ----------------------------- ./include/linux/rcupdate.h:302 Illegal context switch in RCU read-side critical section! other info that might help us debug this: rcu_scheduler_active = 2, debug_locks = 1 1 lock held by syz-executor3/6416: #0: (rcu_read_lock){....}, at: [<000000003fc7d761>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 stack backtrace: CPU: 1 PID: 6416 Comm: syz-executor3 Not tainted 4.16.0-rc1+ #309 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:00007f42cf088c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f42cf0896d4 RCX: 0000000000453a59 RDX: 000000000000ff8c RSI: 0000000020e45000 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 00000000206abff0 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: 6416, name: syz-executor3 1 lock held by syz-executor3/6416: #0: (rcu_read_lock){....}, at: [<000000003fc7d761>] __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218 CPU: 1 PID: 6416 Comm: syz-executor3 Not tainted 4.16.0-rc1+ #309 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+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:00007f42cf088c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c RAX: ffffffffffffffda RBX: 00007f42cf0896d4 RCX: 0000000000453a59 RDX: 000000000000ff8c RSI: 0000000020e45000 RDI: 0000000000000013 RBP: 000000000071bea0 R08: 00000000206abff0 R09: 0000000000000010 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000004b9 R14: 00000000006f71f8 R15: 0000000000000000 MPI: mpi too large (16392 bits) device eql entered promiscuous mode xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables QAT: Invalid ioctl QAT: Invalid ioctl netlink: 17 bytes leftover after parsing attributes in process `syz-executor0'. netlink: 17 bytes leftover after parsing attributes in process `syz-executor0'. binder: 6695 RLIMIT_NICE not set binder: 6692:6699 tried to acquire reference to desc 0, got 1 instead binder: 6703:6704 ERROR: BC_REGISTER_LOOPER called without request binder: 6692:6699 BC_REQUEST_DEATH_NOTIFICATION invalid ref 0 binder: 6703:6704 ERROR: BC_ENTER_LOOPER called after BC_REGISTER_LOOPER binder: 6692:6699 BC_DEAD_BINDER_DONE 0000000000000000 not found binder: 6692:6695 BC_CLEAR_DEATH_NOTIFICATION invalid ref 0 binder: 6703:6707 ERROR: BC_REGISTER_LOOPER called without request binder: 6695 RLIMIT_NICE not set binder: 6703:6707 ERROR: BC_ENTER_LOOPER called after BC_REGISTER_LOOPER binder: undelivered death notification, 0000000000000000 encrypted_key: master key parameter '"/R=Bcu˃,v0rNTҵGşbgK(' is invalid encrypted_key: master key parameter '"/R=Bcu˃,v0rNTҵGşbgK(' is invalid xt_nfacct: accounting object with name `syz0' does not exists netlink: 'syz-executor0': attribute type 1 has an invalid length. netlink: 'syz-executor0': attribute type 1 has an invalid length. kauditd_printk_skb: 17 callbacks suppressed audit: type=1400 audit(1518450281.846:50): avc: denied { map_create } for pid=6929 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 audit: type=1400 audit(1518450281.852:51): avc: denied { map_read map_write } for pid=6929 comm="syz-executor0" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 audit: type=1400 audit(1518450281.988:52): avc: denied { create } for pid=6959 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_generic_socket permissive=1 audit: type=1400 audit(1518450282.001:53): avc: denied { write } for pid=6959 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_generic_socket permissive=1 audit: type=1400 audit(1518450282.105:54): avc: denied { prog_load } for pid=6987 comm="syz-executor7" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=bpf permissive=1 xt_connbytes: Forcing CT accounting to be enabled binder: 7021:7025 BC_INCREFS_DONE u0000000000000000 node 9 cookie mismatch 0000000000000004 != 0000000000000000 binder: BINDER_SET_CONTEXT_MGR already set binder: 7021:7033 ioctl 40046207 0 returned -16 syz-executor7 uses obsolete (PF_INET,SOCK_PACKET) audit: type=1400 audit(1518450282.616:55): avc: denied { map } for pid=7115 comm="syz-executor0" path=2F616E6F6E5F6875676570616765202864656C6574656429 dev="hugetlbfs" ino=18416 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:hugetlbfs_t:s0 tclass=file permissive=1 binder: 7124:7128 ioctl 5411 206f1ffc returned -22 audit: type=1400 audit(1518450282.668:56): avc: denied { map } for pid=7124 comm="syz-executor2" path="/dev/binder0" dev="devtmpfs" ino=182 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=1 binder: release 7124:7128 transaction 11 out, still active binder: undelivered TRANSACTION_COMPLETE dccp_xmit_packet: Payload too large (65423) for featneg. audit: type=1400 audit(1518450282.704:57): avc: denied { call } for pid=7124 comm="syz-executor2" scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=binder permissive=1 audit: type=1400 audit(1518450282.713:58): avc: denied { name_bind } for pid=7113 comm="syz-executor1" src=20007 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:port_t:s0 tclass=dccp_socket permissive=1 audit: type=1400 audit(1518450282.713:59): avc: denied { node_bind } for pid=7113 comm="syz-executor1" src=20007 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:node_t:s0 tclass=dccp_socket permissive=1 binder: BINDER_SET_CONTEXT_MGR already set binder: 7124:7142 ioctl 5411 206f1ffc returned -22 binder: 7124:7128 ioctl 40046207 0 returned -16 binder_alloc: 7124: binder_alloc_buf, no vma binder: 7124:7151 transaction failed 29189/-3, size 0-0 line 2957 binder: undelivered TRANSACTION_ERROR: 29189 binder: send failed reply for transaction 11, target dead QAT: Invalid ioctl Option 'nYZ' to dns_resolver key: bad/missing value Option 'nYZ' to dns_resolver key: bad/missing value DRBG: could not allocate CTR cipher TFM handle: ctr(aes) Dead loop on virtual device ip6_vti0, fix it urgently! xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables futex_wake_op: syz-executor7 tries to shift op by -1; fix this program Dead loop on virtual device ip6_vti0, fix it urgently! syz-executor3 (7332) used greatest stack depth: 16096 bytes left futex_wake_op: syz-executor7 tries to shift op by -1; fix this program Cannot find set identified by id 0 to match Cannot find set identified by id 0 to match semctl(GETNCNT/GETZCNT) is since 3.16 Single Unix Specification compliant. The task syz-executor5 (7474) triggered the difference, watch for misbehavior. xt_SECMARK: invalid mode: 0 xt_SECMARK: invalid mode: 0 can: request_module (can-proto-0) failed. can: request_module (can-proto-0) failed. ion_ioctl: ioctl validate failed syz-executor1 (7575) used greatest stack depth: 15632 bytes left xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables SELinux: policydb string length -325 does not match expected length 8 SELinux: failed to load policy RDS: rds_bind could not find a transport for 172.20.0.170, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 172.20.0.170, load rds_tcp or rds_rdma? QAT: Invalid ioctl QAT: Invalid ioctl binder: 7989:7991 DecRefs 0 refcount change on invalid ref 0 ret -22 binder: 7989:7991 DecRefs 0 refcount change on invalid ref 0 ret -22 kauditd_printk_skb: 8 callbacks suppressed audit: type=1400 audit(1518450286.886:68): avc: denied { setgid } for pid=8012 comm="syz-executor5" capability=6 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl x_tables: ip_tables: osf match: only valid for protocol 6 x_tables: ip_tables: osf match: only valid for protocol 6 ipt_CLUSTERIP: ipt_CLUSTERIP is deprecated and it will removed soon, use xt_cluster instead NFQUEUE: number of total queues is 0 NFQUEUE: number of total queues is 0 xt_CONNSECMARK: target only valid in the 'mangle' or 'security' tables, not 'filter'. xt_CONNSECMARK: target only valid in the 'mangle' or 'security' tables, not 'filter'. audit: type=1400 audit(1518450287.939:69): avc: denied { map } for pid=8199 comm="syz-executor6" path="/dev/usbmon0" dev="devtmpfs" ino=168 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:usbmon_device_t:s0 tclass=chr_file permissive=1 QAT: Stopping all acceleration devices. encrypted_key: insufficient parameters specified encrypted_key: insufficient parameters specified QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl audit: type=1400 audit(1518450288.934:70): avc: denied { setopt } for pid=8445 comm="syz-executor7" 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 audit: type=1400 audit(1518450288.981:71): avc: denied { create } for pid=8461 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_crypto_socket permissive=1