BUG: sleeping function called from invalid context at ./include/linux/uaccess.h:71 in_atomic(): 1, irqs_disabled(): 0, pid: 15529, name: syz-executor3 2 locks held by syz-executor3/15529: #0: (&vcpu->mutex){+.+.}, at: [] vcpu_load+0x1c/0x70 arch/x86/kvm/../../../virt/kvm/kvm_main.c:154 #1: (&kvm->srcu){....}, at: [] vcpu_enter_guest arch/x86/kvm/x86.c:7021 [inline] #1: (&kvm->srcu){....}, at: [] vcpu_run arch/x86/kvm/x86.c:7100 [inline] #1: (&kvm->srcu){....}, at: [] kvm_arch_vcpu_ioctl_run+0x1bdd/0x5a30 arch/x86/kvm/x86.c:7261 CPU: 2 PID: 15529 Comm: syz-executor3 Not tainted 4.13.0-next-20170913+ #3 Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:16 [inline] dump_stack+0x194/0x257 lib/dump_stack.c:52 ___might_sleep+0x2b2/0x470 kernel/sched/core.c:6011 __might_sleep+0x95/0x190 kernel/sched/core.c:5964 __might_fault+0xab/0x1d0 mm/memory.c:4499 __copy_from_user include/linux/uaccess.h:71 [inline] paging32_walk_addr_generic+0x427/0x1d80 arch/x86/kvm/paging_tmpl.h:369 paging32_walk_addr arch/x86/kvm/paging_tmpl.h:475 [inline] paging32_gva_to_gpa+0xa5/0x230 arch/x86/kvm/paging_tmpl.h:913 kvm_read_guest_virt_helper+0xd8/0x140 arch/x86/kvm/x86.c:4436 kvm_read_guest_virt_system+0x3c/0x50 arch/x86/kvm/x86.c:4503 segmented_read_std+0x10c/0x180 arch/x86/kvm/emulate.c:822 em_fxrstor+0x27b/0x410 arch/x86/kvm/emulate.c:4025 x86_emulate_insn+0x55d/0x3cf0 arch/x86/kvm/emulate.c:5483 x86_emulate_instruction+0x411/0x1ca0 arch/x86/kvm/x86.c:5735 kvm_mmu_page_fault+0x1b0/0x2f0 arch/x86/kvm/mmu.c:4956 handle_ept_violation+0x194/0x540 arch/x86/kvm/vmx.c:6502 vmx_handle_exit+0x24b/0x1a60 arch/x86/kvm/vmx.c:8823 vcpu_enter_guest arch/x86/kvm/x86.c:7038 [inline] vcpu_run arch/x86/kvm/x86.c:7100 [inline] kvm_arch_vcpu_ioctl_run+0x1d36/0x5a30 arch/x86/kvm/x86.c:7261 kvm_vcpu_ioctl+0x64c/0x1010 arch/x86/kvm/../../../virt/kvm/kvm_main.c:2550 vfs_ioctl fs/ioctl.c:45 [inline] do_vfs_ioctl+0x1b1/0x1530 fs/ioctl.c:685 SYSC_ioctl fs/ioctl.c:700 [inline] SyS_ioctl+0x8f/0xc0 fs/ioctl.c:691 entry_SYSCALL_64_fastpath+0x1f/0xbe RIP: 0033:0x447299 RSP: 002b:00007f7982f77c08 EFLAGS: 00000296 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000000016 RCX: 0000000000447299 RDX: 0000000000000000 RSI: 000000000000ae80 RDI: 0000000000000016 RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000296 R12: 00000000ffffffff R13: 0000000000005790 R14: 00000000006e8850 R15: 0000000000000016 device lo left promiscuous mode RDS: rds_bind could not find a transport for 63.255.128.0, load rds_tcp or rds_rdma? RDS: rds_bind could not find a transport for 63.255.128.0, load rds_tcp or rds_rdma? QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl SELinux: unrecognized netlink message: protocol=4 nlmsg_type=16 sclass=netlink_tcpdiag_socket pig=15661 comm=syz-executor4 SELinux: unrecognized netlink message: protocol=9 nlmsg_type=37422 sclass=netlink_audit_socket pig=15664 comm=syz-executor0 SELinux: unrecognized netlink message: protocol=4 nlmsg_type=16 sclass=netlink_tcpdiag_socket pig=15644 comm=syz-executor4 device lo entered promiscuous mode pit: kvm: requested 4190 ns i8254 timer period limited to 500000 ns sctp: [Deprecated]: syz-executor0 (pid 15713) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=15738 comm=syz-executor4 8021q: VLANs not supported on lo sctp: [Deprecated]: syz-executor0 (pid 15744) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead pit: kvm: requested 4190 ns i8254 timer period limited to 500000 ns QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl netlink: 1 bytes leftover after parsing attributes in process `syz-executor0'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=15924 comm=syz-executor0 netlink: 12 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 12 bytes leftover after parsing attributes in process `syz-executor7'. device gre0 entered promiscuous mode skbuff: bad partial csum: csum=65535/0 len=3410 device gre0 entered promiscuous mode sctp: [Deprecated]: syz-executor6 (pid 16117) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead sctp: [Deprecated]: syz-executor6 (pid 16119) Use of int in max_burst socket option deprecated. Use struct sctp_assoc_value instead netlink: 5 bytes leftover after parsing attributes in process `syz-executor4'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor4'. QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl QAT: Invalid ioctl device gre0 entered promiscuous mode netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. sg_write: data in/out 65504/195 bytes for SCSI command 0xb9-- guessing data in; program syz-executor1 not setting count and/or reply_len properly netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 4 bytes leftover after parsing attributes in process `syz-executor2'. sg_write: data in/out 65504/195 bytes for SCSI command 0xb9-- guessing data in; program syz-executor1 not setting count and/or reply_len properly netlink: 4 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=16406 comm=syz-executor6 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=16424 comm=syz-executor6 RDS: rds_bind could not find a transport for 172.20.1.187, load rds_tcp or rds_rdma? netlink: 8 bytes leftover after parsing attributes in process `syz-executor3'. Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable *** Guest State *** CR0: actual=0x0000000000000020, shadow=0x0000000000000000, gh_mask=fffffffffffffff7 CR4: actual=0x0000000000002050, shadow=0x0000000000000000, gh_mask=ffffffffffffe871 CR3 = 0x00000000fffbc000 RSP = 0x0000000000000f80 RIP = 0x0000000000000000 RFLAGS=0x00000002 DR7 = 0x0000000000000400 Sysenter RSP=0000000000000000 CS:RIP=0000:0000000000000000 CS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000 DS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000 SS: sel=0x0000, attr=0x08081, limit=0x00000000, base=0x0000000000000000 ES: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000 FS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000 GS: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000 GDTR: limit=0x000007ff, base=0x0000000000001000 LDTR: sel=0x0008, attr=0x04082, limit=0x000007ff, base=0x0000000000001800 IDTR: limit=0x00000000, base=0x0000000000000000 TR: sel=0x0000, attr=0x10000, limit=0x00000000, base=0x0000000000000000 EFER = 0x0000000000000000 PAT = 0x0007040600070406 DebugCtl = 0x0000000000000000 DebugExceptions = 0x0000000000000000 BndCfgS = 0x0000000000000000 Interruptibility = 00000000 ActivityState = 00000000 *** Host State *** RIP = 0xffffffff811b8bff RSP = 0xffff88003dfa74c8 CS=0010 SS=0018 DS=0000 ES=0000 FS=0000 GS=0000 TR=0040 FSBase=00007f7982ef3700 GSBase=ffff88006df00000 TRBase=ffff88006df23100 GDTBase=ffffffffff574000 IDTBase=ffffffffff57b000 CR0=0000000080050033 CR3=000000006c47e000 CR4=00000000000026e0 Sysenter RSP=0000000000000000 CS:RIP=0010:ffffffff84d460c0 EFER = 0x0000000000000d01 PAT = 0x0007040600070406 *** Control State *** PinBased=0000003f CPUBased=b699edfa SecondaryExec=000000e2 EntryControls=0001d1ff ExitControls=00afefff ExceptionBitmap=00060042 PFECmask=00000000 PFECmatch=00000000 VMEntry: intr_info=00000000 errcode=00000000 ilen=00000000 VMExit: intr_info=00000000 errcode=00000000 ilen=00000000 reason=80000021 qualification=0000000000000000 IDTVectoring: info=00000000 errcode=00000000 TSC Offset = 0xffffff9be318b3e4 EPT pointer = 0x00000000530d701e Virtual processor ID = 0x0171 kvm_hv_get_msr: 1 callbacks suppressed kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008f kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008e kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008d kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008c kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008b kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x4000008a kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x40000089 kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x40000088 kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x40000087 kvm [16585]: vcpu0, guest rIP: 0x9135 Hyper-V unhandled rdmsr: 0x40000086 kvm [16585]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000023 data 0x66c900003b9a1047 kvm [16585]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000022 data 0x66c90000cb211047 kvm [16585]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000020 data 0x66c90000000e1047 [TTM] Could not find buffer object to map netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. [TTM] Could not find buffer object to map loop_reread_partitions: partition scan of loop0 () failed (rc=-13) netlink: 5 bytes leftover after parsing attributes in process `syz-executor7'. print_req_error: I/O error, dev loop3, sector 0 Buffer I/O error on dev loop3, logical block 0, lost async page write print_req_error: I/O error, dev loop3, sector 8 Buffer I/O error on dev loop3, logical block 1, lost async page write print_req_error: I/O error, dev loop3, sector 16 Buffer I/O error on dev loop3, logical block 2, lost async page write print_req_error: I/O error, dev loop3, sector 24 Buffer I/O error on dev loop3, logical block 3, lost async page write print_req_error: I/O error, dev loop3, sector 32 Buffer I/O error on dev loop3, logical block 4, lost async page write print_req_error: I/O error, dev loop3, sector 40 Buffer I/O error on dev loop3, logical block 5, lost async page write print_req_error: I/O error, dev loop3, sector 48 Buffer I/O error on dev loop3, logical block 6, lost async page write print_req_error: I/O error, dev loop3, sector 56 Buffer I/O error on dev loop3, logical block 7, lost async page write print_req_error: I/O error, dev loop3, sector 64 Buffer I/O error on dev loop3, logical block 8, lost async page write print_req_error: I/O error, dev loop3, sector 72 Buffer I/O error on dev loop3, logical block 9, lost async page write IPv6: NLM_F_REPLACE set, but no existing node found! IPv6: NLM_F_REPLACE set, but no existing node found! RDS: rds_bind could not find a transport for 224.0.0.1, load rds_tcp or rds_rdma? SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8 sclass=netlink_route_socket pig=16955 comm=syz-executor5 RDS: rds_bind could not find a transport for 224.0.0.1, load rds_tcp or rds_rdma? SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8 sclass=netlink_route_socket pig=16955 comm=syz-executor5 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=16983 comm=syz-executor7 IPv6: Can't replace route, no match found IPv6: Can't replace route, no match found dccp_close: ABORT with 564 bytes unread kauditd_printk_skb: 489 callbacks suppressed audit: type=1326 audit(1505317030.517:3528): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=17111 comm="syz-executor7" exe="/syz-executor7" sig=31 arch=c000003e syscall=202 compat=0 ip=0x447299 code=0x0 device gre0 entered promiscuous mode dccp_invalid_packet: P.CsCov 9 exceeds packet length 33 rpcbind: RPC call returned error 22 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8 sclass=netlink_route_socket pig=17231 comm=syz-executor1 SELinux: unrecognized netlink message: protocol=0 nlmsg_type=8 sclass=netlink_route_socket pig=17256 comm=syz-executor1 dccp_invalid_packet: P.CsCov 9 exceeds packet length 33 IPv6: NLM_F_REPLACE set, but no existing node found! Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable IPv6: NLM_F_REPLACE set, but no existing node found! Can not set IPV6_FL_F_REFLECT if flowlabel_consistency sysctl is enable rpcbind: RPC call returned error 22 sctp: [Deprecated]: syz-executor7 (pid 17306) Use of int in max_burst socket option. Use struct sctp_assoc_value instead SELinux: unrecognized netlink message: protocol=0 nlmsg_type=0 sclass=netlink_route_socket pig=17311 comm=syz-executor7 sctp: [Deprecated]: syz-executor7 (pid 17306) Use of int in max_burst socket option. Use struct sctp_assoc_value instead device gre0 entered promiscuous mode rpcbind: RPC call returned error 22 rpcbind: RPC call returned error 22 QAT: Invalid ioctl QAT: Invalid ioctl kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000023 data 0x66c900003b9a1043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000022 data 0x66c90000cb211043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000023 data 0x66c900003b9a1043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000022 data 0x66c90000cb211043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000020 data 0x66c9000000041043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000023 data 0x66c900003b9a1043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000022 data 0x66c90000cb211043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000020 data 0x66c90000000d1043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000023 data 0x66c900003b9a1043 kvm [17450]: vcpu0, guest rIP: 0x9112 Hyper-V uhandled wrmsr: 0x40000022 data 0x66c90000cb211043 nla_parse: 16 callbacks suppressed netlink: 3 bytes leftover after parsing attributes in process `syz-executor2'. netlink: 10 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 10 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 10 bytes leftover after parsing attributes in process `syz-executor3'. netlink: 10 bytes leftover after parsing attributes in process `syz-executor3'. audit: type=1326 audit(1505317033.297:3529): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=17673 comm="syz-executor6" exe="/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x447299 code=0xffff0000 netlink: 4 bytes leftover after parsing attributes in process `syz-executor2'. Bearer <÷ÿ> rejected, not supported in standalone mode netlink: 4 bytes leftover after parsing attributes in process `syz-executor2'. Bearer <÷ÿ> rejected, not supported in standalone mode audit: type=1326 audit(1505317033.454:3530): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=17673 comm="syz-executor6" exe="/syz-executor6" sig=31 arch=c000003e syscall=202 compat=0 ip=0x447299 code=0xffff0000 audit: type=1326 audit(1505317033.790:3531): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=17786 comm="syz-executor2" exe="/syz-executor2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x447299 code=0xffff0000 audit: type=1326 audit(1505317033.935:3532): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=17786 comm="syz-executor2" exe="/syz-executor2" sig=31 arch=c000003e syscall=202 compat=0 ip=0x447299 code=0xffff0000 netlink: 11 bytes leftover after parsing attributes in process `syz-executor5'. netlink: 11 bytes leftover after parsing attributes in process `syz-executor5'.