INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-mmots-kasan-gce-5,10.128.0.17' (ECDSA) to the list of known hosts. 2017/11/03 15:21:06 fuzzer started 2017/11/03 15:21:06 dialing manager at 10.128.0.26:37091 2017/11/03 15:21:13 kcov=true, comps=true 2017/11/03 15:21:13 executing program 0: 2017/11/03 15:21:13 executing program 1: 2017/11/03 15:21:13 executing program 7: 2017/11/03 15:21:13 executing program 4: 2017/11/03 15:21:13 executing program 5: 2017/11/03 15:21:13 executing program 6: 2017/11/03 15:21:13 executing program 2: 2017/11/03 15:21:13 executing program 3: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 0: 2017/11/03 15:21:14 executing program 1: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) pipe(&(0x7f0000000000)={0x0, 0x0}) ioctl$TIOCNOTTY(r0, 0x5422) seccomp(0x1, 0x0, &(0x7f0000045000-0x10)={0x1, &(0x7f0000000000)=[{0x6, 0x0, 0x0, 0xffffffff}]}) fallocate(0xffffffffffffffff, 0x200000000000, 0x2, 0x62000) 2017/11/03 15:21:14 executing program 7: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f0000976000)=0x75) lsetxattr(&(0x7f00009a4000)="2e2f66696c653000", &(0x7f0000578000)=@random={"6f73782e00", "63707573657470726f6300"}, &(0x7f000063e000-0x5)="2d5c6c6f00", 0x5, 0x1) perf_event_open(&(0x7f000002f000-0x78)={0x2, 0x78, 0x46, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x0, 0x0, 0xffffffffffffffff, 0x0) clone(0x2000, &(0x7f00006bf000)="", &(0x7f000024c000)=0x0, &(0x7f0000254000-0x4)=0x0, &(0x7f00002de000)="") readlink(&(0x7f0000d52000-0x8)="2e2f66696c653000", &(0x7f0000a28000-0x54)="0000000000000000000000", 0xb) mmap(&(0x7f0000000000/0xf42000)=nil, 0xf42000, 0x3, 0x32, 0xffffffffffffffff, 0x0) clock_nanosleep(0x0, 0x0, &(0x7f0000065000-0x10)={0x0, 0x0}, &(0x7f000002c000)={0x0, 0x0}) clock_nanosleep(0x2, 0x0, &(0x7f0000052000-0x10)={0x0, 0x989680}, 0x0) setsockopt$inet6_tcp_int(0xffffffffffffffff, 0x6, 0x0, &(0x7f0000a48000-0x4)=0x0, 0x4) r0 = socket(0x19, 0x7, 0x50) writev(r0, &(0x7f0000012000-0x10)=[], 0x0) r1 = gettid() socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000880000-0x8)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$int_in(r2, 0x5452, &(0x7f0000009000-0x8)=0x3f) fcntl$setsig(r2, 0xa, 0x12) fcntl$setownex(r2, 0xf, &(0x7f00000ff000)={0x0, r1}) recvmmsg(r3, &(0x7f0000f40000)=[{{0x0, 0x0, &(0x7f00003ea000)=[], 0x0, &(0x7f0000f40000)="", 0x0, 0x0}, 0x0}], 0x1, 0x0, &(0x7f0000f41000-0x10)={0x77359400, 0x0}) accept$packet(r0, &(0x7f0000d3c000)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @empty=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0], [0x0, 0x0]}, &(0x7f0000e09000)=0x14) ioctl$sock_inet6_SIOCSIFDSTADDR(r0, 0x8918, &(0x7f00009fb000)={@empty={[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x5, r4}) recvmsg(r3, &(0x7f000095d000-0x38)={&(0x7f0000894000-0x8)=@sco={0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, 0x8, &(0x7f00000a5000-0x50)=[], 0x0, &(0x7f0000b30000)="", 0x0, 0x0}, 0x0) readv(0xffffffffffffffff, &(0x7f0000f41000)=[{&(0x7f0000f42000-0x9a)="00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", 0x9a}], 0x1) setsockopt$inet_tcp_buf(r0, 0x6, 0x0, &(0x7f0000459000)="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", 0x1000) bind$ax25(r0, &(0x7f0000e52000-0x10)={0x3, {"95c9b2d4750100"}, 0x8001}, 0x10) clone(0x2000000, &(0x7f0000f42000-0xf5)="af8ee968cc657bdeac125214aa367493a629f66e5dbfe511888e34568cd5b113b422f27f2d8a2bd3b2a8efa258ac43c541821bd40af3dbc809afdee94284788bff2b39363beb718a2d9f5b16ebcbdde97d1f4063f381b7e3b16e72926ab4fbe1e06887059cc87ba63ff7f91e8e690be8149ac6e1d487a699c6117a6f5364e421b7fff0acd2777292ea2526474b0c7b792331f2b91b37184161349f2d2fd39d62f483ad89b3787ea1db3c3ce602e34a14f0eaf7da97258de7aa2a7f11756a1cf874f2ad468e37b83ef31fd64299d129951631f1444f780ae15ddccfdd5b19c23831ef9087142ac1bccec5bd08a7c755295af2510c36", &(0x7f0000ec4000-0x4)=0x0, &(0x7f0000200000)=0x0, &(0x7f0000f42000-0x6c)="a26f09cb112796791b96b3eae7875a188a702b64e028babddeccda32d6e1bbe780388ab872cf33abec38ac24aebe1da918de48efab2b") dup2(r2, r3) tkill(r1, 0x15) mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) r5 = socket$inet(0x2, 0x2, 0x0) ioctl$sock_inet_SIOCGARP(r5, 0x8954, &(0x7f0000541000)={{0x2, 0x0, @multicast2=0xe0000002, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, {0x0, @random="5863d07ad2f8", [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x0, {0x2, 0x0, @empty=0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, @generic="000000000000ee0153d328915ff87020"}) 2017/11/03 15:21:14 executing program 0: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) r0 = socket$inet(0x2, 0x1000000000000003, 0x5) r1 = dup(r0) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000a2f000-0x4)=0x7fe, 0x4) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000583000-0x4)=0x1a1, 0x4) syzkaller login: [ 52.957595] audit: type=1326 audit(1509722474.840:2): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=3238 comm="syz-executor1" exe="/root/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0xffff0000 [ 53.013088] audit: type=1326 audit(1509722474.895:3): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=3238 comm="syz-executor1" exe="/root/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0xffff0000 2017/11/03 15:21:14 executing program 5: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) socket$inet_udp(0x2, 0x2, 0x0) lgetxattr(&(0x7f00005fa000-0x8)="2e2f66696c653000", &(0x7f00001d1000)=@random={"73797374656d2e00", "00"}, &(0x7f0000122000-0x6b)="", 0x0) r0 = socket$inet_udp(0x2, 0x2, 0x0) getsockopt$inet_mreqn(r0, 0x0, 0x23, &(0x7f0000875000)={@local={0x0, 0x0, 0x0, 0x0}, @loopback=0x0, 0x0}, &(0x7f0000c81000-0x4)=0xc) setsockopt$inet_pktinfo(r0, 0x0, 0x8, &(0x7f0000f62000-0xc)={r1, @empty=0x0, @empty=0x0}, 0xc) setsockopt$inet_udp_encap(r0, 0x11, 0x64, &(0x7f0000f2d000)=0x7, 0x4) bind$inet(r0, &(0x7f0000d6a000-0x10)={0x2, 0x0, @multicast1=0xe0000001, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x10) r2 = socket$inet(0x2, 0x1, 0x0) setsockopt$inet_tcp_buf(r2, 0x6, 0x1f, &(0x7f0000969000-0xfd)="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", 0xfc) r3 = syz_open_dev$tun(&(0x7f000048b000-0xd)="2f6465762f6e65742f74756e00", 0x0, 0xa) r4 = fcntl$dupfd(r3, 0x0, r3) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(r4, 0x84, 0x1d, &(0x7f000035f000-0x18)={0x5, [0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f0000307000-0x4)=0x18) ioctl$sock_netdev_private(r4, 0x89f0, &(0x7f0000d10000)="d92203167fe27c475f6a8749de867f99d5e01d0b1a117cadf3a106b56afe301a393388a2a848af5febc0809725b0a064ad5036244def6e2b1c9b0b2fcec0c615b64a7b2c3b139acb2644c06c7898b5eb09172da1d055460dbb7346b574d05b40a6eb2eb19bded2c6a3c04fe48ac29865f09a3684ecff1ee12494128b5bbbc1f9658fb3837a7f5558f8976e809a57f1c09c213b74b7475b212f8ccdd0ecaa7e5210d5d7e3376f328af25b4d5b7a10dd3ca5ef23ebb7aa095a1aff789e7ebc") setsockopt$inet_sctp_SCTP_CONTEXT(r2, 0x84, 0x11, &(0x7f0000685000+0xa94)={r5, 0x8}, 0x8) ioctl$TUNSETIFINDEX(r3, 0x400454da, &(0x7f000040c000)=0x100) getsockopt$inet_sctp6_SCTP_ADAPTATION_LAYER(r4, 0x84, 0x7, &(0x7f00004a4000)={0x0}, &(0x7f0000a27000-0x4)=0x4) ioctl$TUNSETIFF(r3, 0x400454ca, &(0x7f0000a5b000-0x28)={@common="67726530000000000000000000000000", @ifru_names=@generic="4f54000cc0a1ed4f3a0a1fdc222073b5"}) getsockopt$inet_sctp_SCTP_ENABLE_STREAM_RESET(r2, 0x84, 0x76, &(0x7f0000625000-0x4)={r5, 0x101}, &(0x7f0000449000-0x4)=0x8) getsockopt$inet_sctp_SCTP_NODELAY(r4, 0x84, 0x3, &(0x7f00004e7000-0x4)=0x0, &(0x7f000031c000)=0x4) syz_open_dev$tun(&(0x7f0000017000-0xd)="2f6465762f6e65742f74756e00", 0x0, 0x4000) ioctl$sock_inet_SIOCSIFFLAGS(r2, 0x8914, &(0x7f0000630000-0x20)={@common="67726530000000000000000000000000", @ifru_flags=0x301}) recvmmsg(r2, &(0x7f000019b000)=[{{&(0x7f0000ae4000-0xc)=@nl={0x0, 0x0, 0x0, 0x0}, 0xc, &(0x7f000068f000)=[{&(0x7f00009a2000-0xbf)="0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", 0xbf}, {&(0x7f0000bde000-0x10)="00000000000000000000000000000000", 0x10}], 0x2, &(0x7f000049c000-0xf2)="0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", 0xf2, 0x800}, 0x9}], 0x1, 0x1, &(0x7f0000926000)={0x0, 0x1c9c380}) getsockopt$inet_udp_int(r2, 0x11, 0x64, &(0x7f0000e9c000)=0x0, &(0x7f000075a000-0x4)=0x4) r6 = dup(r0) setsockopt$inet_udp_encap(r0, 0x11, 0x64, &(0x7f0000ae4000-0x4)=0x3, 0x4) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f00000f5000)=@syzn={0x73, 0x79, 0x7a, 0x0, 0x0}, 0x10) getsockopt$inet_dccp_buf(r2, 0x21, 0x0, &(0x7f00002dc000-0x4e)="000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", &(0x7f00001ce000-0x4)=0x4e) write$tun(r4, &(0x7f00003f1000)=@hdr={0x1, 0x0, 0x0, 0x0, 0x0, 0x0, @ipv4={{0x5, 0x4, 0x0, 0x0, 0x415, 0x0, 0x0, 0x0, 0x11, 0x0, @local={0xac, 0x14, 0x0, 0xaa}, @multicast1=0xe0000001, {[]}}, @dccp={{0x0, 0x0, 0x4, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, "b31d90", 0x0, "b99878"}, "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"}}}, 0x41f) recvfrom$ax25(r6, &(0x7f0000be9000)="00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000", 0xbb, 0x142, &(0x7f0000a20000-0x10)={0x3, {"a251cbc7fc7a79"}, 0x40}, 0x10) 2017/11/03 15:21:14 executing program 4: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) r0 = memfd_create(&(0x7f000064e000-0x1)="00", 0x0) ioctl$KVM_CREATE_VCPU(r0, 0xae41, 0x0) ioctl$sock_SIOCGPGRP(r0, 0x8904, &(0x7f0000b05000)=0x0) prlimit64(r1, 0x0, &(0x7f0000d5a000)={0x8000, 0x6}, &(0x7f0000cc2000)={0x0, 0x0}) getsockopt$sock_timeval(r0, 0x1, 0x15, &(0x7f00009c5000-0x10)={0x0, 0x0}, &(0x7f0000a96000)=0x10) setrlimit(0x8, &(0x7f0000db1000-0x10)={0x7, 0x0}) fcntl$lock(r0, 0x800, &(0x7f00000a5000)={0x0, 0x0, 0x0, 0x0, r1}) ftruncate(r0, 0x2) 2017/11/03 15:21:15 executing program 2: mmap(&(0x7f0000000000/0xa6e000)=nil, 0xa6e000, 0x3, 0x32, 0xffffffffffffffff, 0x0) r0 = socket$inet_sctp(0x2, 0x800000000001, 0x84) ioctl$sock_inet_SIOCSIFADDR(r0, 0x8916, &(0x7f000082f000)={@syzn={0x73, 0x79, 0x7a, 0x0, 0x0}, @ifru_addrs={0x2, 0x3, @empty=0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}}) mmap(&(0x7f0000a6e000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0) socketpair$inet_tcp(0x2, 0x1, 0x0, &(0x7f0000a6f000-0x8)={0x0, 0x0}) socket$bt_l2cap(0x1f, 0x3, 0x0) mmap(&(0x7f0000a6e000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r1, 0x6, 0xd, &(0x7f0000a6e000)="7363616c61626c6500", 0x9) 2017/11/03 15:21:15 executing program 0: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) r0 = socket$inet_sctp(0x2, 0x1, 0x84) setsockopt(r0, 0x100000000, 0x2, &(0x7f00003cc000-0x7a)="d874fd3b6c668169206a389e2bf811b70e477bd92c8e48a3417efea97886a07700f548f8921d32ca4315ec2b949c6852ed079df8f848210abdcac465528b8b8604df8e25358e455122993792663d0196041a50c886e07bfd22d0b8c18f1f7a74c0afe0e74785f1e5af6433a838b897712af39bb2da9e244c966d", 0x7a) connect$inet(r0, &(0x7f0000f6d000-0x10)={0x2, 0x0, @remote={0xac, 0x14, 0x0, 0xbb}, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x10) listen(r0, 0x10005) r1 = accept(r0, &(0x7f0000151000-0x9)=@rc={0x0, {0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x0}, &(0x7f0000dd2000-0x4)=0x9) sendmsg$inet_sctp(r1, &(0x7f000027e000)={&(0x7f0000c49000-0x10)=@in={0x2, 0x1, @remote={0xac, 0x14, 0x0, 0xbb}, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x10, &(0x7f0000738000)=[{&(0x7f0000036000-0x7b)="2d", 0x1}], 0x1, 0x0, 0x0, 0x0}, 0x0) 2017/11/03 15:21:15 executing program 3: mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGPGRP(0xffffffffffffffff, 0x8904, &(0x7f0000001000-0x4)=0x0) mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0) move_pages(r0, 0x1, &(0x7f0000000000)=[&(0x7f0000056000/0x2000)=nil], &(0x7f00003c8000-0x24)=[0x870, 0x8, 0x2, 0x0, 0x7f, 0xfffffffffffffffc, 0x3, 0x5, 0x4], &(0x7f0000000000)=[0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0], 0x2) mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000025000-0x78)={0x2, 0x78, 0x45, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x0, 0x0, 0xffffffffffffffff, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f00007c1000-0x8)=0x0) perf_event_open(&(0x7f0000271000)={0x2, 0x78, 0x46, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1000, 0x4000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socket(0x10, 0x2, 0x0) socket$inet_tcp(0x2, 0x1, 0x0) mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0) accept$unix(0xffffffffffffffff, 0x0, &(0x7f0000001000-0x4)=0x0) mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x3, 0x32, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x0, 0x10, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) setfsgid(0x0) perf_event_open(&(0x7f0000271000)={0x2, 0x78, 0x46, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x0, 0x0, 0xffffffffffffffff, 0x0) sched_setaffinity(0x0, 0x8, &(0x7f00008ab000-0x8)=0x8000000075) ioctl$DRM_IOCTL_RES_CTX(0xffffffffffffffff, 0xc0086426, &(0x7f0000b98000-0x8)={0x3, &(0x7f00003ec000)=[{0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}]}) perf_event_open(&(0x7f000001d000)={0x7, 0x78, 0xe3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000040fe, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) unshare(0x8100400) socketpair$inet6_tcp(0xa, 0x1, 0x0, &(0x7f0000b9b000)={0x0, 0x0}) pwrite64(r1, &(0x7f0000581000)="01", 0x1, 0x0) r2 = socket$netlink(0x10, 0x3, 0x9) ioctl$sock_inet6_udp_SIOCINQ(0xffffffffffffffff, 0x541b, &(0x7f0000ce7000)=0x0) setsockopt$SO_BINDTODEVICE(r2, 0x1, 0x19, &(0x7f0000222000)=@common="626f6e64300000000000000000000000", 0x10) sendmsg$netlink(r2, &(0x7f000081b000)={0x0, 0x0, &(0x7f000047d000-0x40)=[{&(0x7f000057d000)=[], 0x0}], 0x1, &(0x7f0000cdb000)=[], 0x0, 0x0}, 0x40000000) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(0xffffffffffffff9c, 0xc00c642d, &(0x7f0000000000)={0x0, 0x80000, 0xffffffffffffffff}) mmap(&(0x7f0000000000/0x1000)=nil, 0x1000, 0x0, 0x32, 0xffffffffffffffff, 0x0) 2017/11/03 15:21:15 executing program 1: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) pipe(&(0x7f0000000000)={0x0, 0x0}) ioctl$TIOCNOTTY(r0, 0x5422) seccomp(0x1, 0x0, &(0x7f0000045000-0x10)={0x1, &(0x7f0000000000)=[{0x6, 0x0, 0x0, 0xffffffff}]}) fallocate(0xffffffffffffffff, 0x200000000000, 0x2, 0x62000) 2017/11/03 15:21:15 executing program 6: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) setsockopt$inet_sctp6_SCTP_RECVNXTINFO(0xffffffffffffffff, 0x84, 0x21, &(0x7f0000c79000-0x4)=0x0, 0x4) sendmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000001000-0x38)={&(0x7f0000c51000-0x10)=@in={0x2, 0x0, @remote={0xac, 0x14, 0x0, 0xbb}, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x10, &(0x7f0000808000)=[{&(0x7f0000c4c000-0xa7)="f760cded2c009fe9a5f72afcaaeaa6c660dcd03caeb5ff8c76cfaab5fb6ab12def07706bdd457cb5c0d45de4619b4df7aa1d6bbd2190169e0e7c9e81747bddadc7a9d28703c7fb0af44449189b85092f95c4a11a4aa4e055fce58e34cfce6da33682a9b2190e084729bdff22ecf3420d47f503f2985df4d70a8019a5b9274f583405063a1d73473814a71bf381e71ebe35b9135dd76f940eec3683e343a25b1a84c5a54f4f8cf5", 0xa7}, {&(0x7f0000acd000-0xb)="05815a1b645c658bbc1c51", 0xb}, {&(0x7f0000a3c000-0xb0)="98cd5728d01d36e80667aef7d1d8285d5e252d88d600e15150e8a347b4b371886baaf7d9ea33bf2d4350694ddd145b8071351f962eb5cea50ba642a6b05f2320af59365cbea39691e8a7559de7a2a6e6d0a8bb03384d62fd968ae759843b8347b366dc2d850f2f6bdc90d7a6f0f0d36e1f4607e9e518dd24c359724158a17c5d80e3872a3ab23a057388c210586e76ad32388a3a952f5b025de27b01ae40cc5adf56df170dcf65f397e8cc83229b289e", 0xb0}], 0x3, &(0x7f000014c000)=[], 0x0, 0x0}, 0x0) getsockopt$inet_sctp_SCTP_LOCAL_AUTH_CHUNKS(0xffffffffffffffff, 0x84, 0x1b, &(0x7f000080b000)={0x0, 0x0, ""}, &(0x7f0000000000)=0x8) mkdir(&(0x7f0000014000)="2e2f66696c653000", 0x0) r0 = openat(0xffffffffffffff9c, &(0x7f0000013000-0x8)="2e2f66696c653000", 0x0, 0x0) ioctl$KDGETMODE(0xffffffffffffffff, 0x4b3b, &(0x7f0000962000)=0x0) ioctl$TCSBRKP(0xffffffffffffffff, 0x5425, 0x3) symlinkat(&(0x7f0000c1c000-0x1)="2f", r0, &(0x7f0000cc4000)="2e2f66696c653000") fchmodat(0xffffffffffffffff, &(0x7f00004ed000)="2f", 0x0) renameat2(r0, &(0x7f000000c000-0x14)="2e2f66696c65302f66696c653100", r0, &(0x7f0000020000-0x8)="2e2f66696c653100", 0x1) setsockopt$inet_sctp6_SCTP_MAX_BURST(0xffffffffffffffff, 0x84, 0x14, &(0x7f0000001000-0x8)=@assoc_value={0x0, 0x0}, 0x8) setsockopt$inet_udp_encap(0xffffffffffffffff, 0x11, 0x64, &(0x7f00007fb000-0x4)=0x0, 0x4) 2017/11/03 15:21:15 executing program 4: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) memfd_create(&(0x7f00004ba000)="7d5c70726f6300", 0x2) r0 = creat(&(0x7f0000cb1000-0x8)="2e2f66696c653000", 0x6a) bpf$MAP_CREATE(0x0, &(0x7f0000000000)={0x0, 0xffff, 0x4, 0x9, 0x1, r0, 0x0}, 0x1c) syz_emit_ethernet(0xc0, &(0x7f00000ee000-0xc0)={@random="efad070000a7", @remote={[0xbb, 0xbb, 0xbb, 0xbb, 0xbb], 0x0}, [], {{0x800, @ipv4={{0x5, 0x4, 0x0, 0x0, 0xb2, 0x0, 0x0, 0x0, 0x1, 0x0, @remote={0xac, 0x14, 0x0, 0xbb}, @local={0xac, 0x14, 0x0, 0xaa}, {[]}}, @dccp={{0x1, 0x0, 0x4, 0x1, 0x3, 0x0, 0x0, 0x7, 0x9, "f63527", 0x0, "1ddb5b"}, "378e96f20cdd63481b2556fe7b8bcaaf17550fe4e73c3f201153bbbebefad64d653e68f4cc277e07a4c66f10a0407cde4252365974828a0e2b8ab72e8090fd95d16c6cb0558e9c6785a987d271d119c7a617b06469e8348ad095977d564d602761a036ecda0b8c3360bbf9eea8889151c18f2c71b51f1bc9d5f9b4c99c8fca81be89c5e17dcc495ccad40de4df22"}}}}}, 0x0) ioctl$KVM_SET_GUEST_DEBUG(r0, 0x4048ae9b, &(0x7f000050a000-0x48)={0x0, 0x0, [0x9, 0xe0e2, 0x101, 0x6, 0x400, 0x2, 0xffffffffffffff07, 0x1]}) [ 53.134080] device gre0 entered promiscuous mode 2017/11/03 15:21:15 executing program 6: mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) socket$inet_sctp(0x2, 0x9, 0x84) poll(&(0x7f00008e1000+0x10f)=[], 0x0, 0x0) r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_inet_SIOCADDRT(0xffffffffffffffff, 0x890b, &(0x7f0000001000)={0x0, {0x2, 0x0, @multicast1=0xe0000001, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, {0x2, 0x1, @multicast1=0xe0000001, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, {0x2, 0x0, @multicast2=0xe0000002, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x0, 0xfffffffffffffffa, 0xffffffffffffffff, 0x0, 0x2, 0x0, 0x0, 0x0, 0x8}) setsockopt$inet6_tcp_TCP_REPAIR_OPTIONS(0xffffffffffffffff, 0x6, 0x16, &(0x7f0000001000)=[{0x0, 0x83}, {0x0, 0x0}, {0x0, 0x0}, {0x0, 0x0}, {0x100001, 0x1}], 0x5) setsockopt$inet_int(r0, 0x0, 0x10000000000040, &(0x7f0000001000-0x4)=0x7, 0x4) r1 = socket$inet_sctp(0x2, 0x5, 0x84) setsockopt$inet_int(r1, 0x0, 0x3, &(0x7f0000000000)=0x6, 0x4) r2 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_inet_SIOCADDRT(r2, 0x890b, &(0x7f0000ee8000)={0x0, {0x2, 0x2, @empty=0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, {0x2, 0x0, @local={0xac, 0x14, 0x0, 0xaa}, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, {0x2, 0x0, @broadcast=0xffffffff, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x4}) ioctl$sock_ifreq(r2, 0x8927, &(0x7f0000001000-0x28)={@syzn={0x73, 0x79, 0x7a, 0x0, 0x0}, @ifru_addrs=@ethernet={0x6, @local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0x0}, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}}) ioctl$sock_inet_SIOCADDRT(r2, 0x890b, &(0x7f0000000000)={0x7, {0x2, 0x2, @multicast2=0xe0000002, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, {0x2, 0x2, @empty=0x0, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, {0x2, 0x2, @rand_addr=0x2, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, 0x20, 0x5, 0x7, 0xffffffffffffffff, 0x3, &(0x7f0000001000-0x10)=@generic="952fb67f6217642e33c9950afb5a318e", 0x15a, 0x3, 0x48a}) socketpair$inet(0x2, 0x80000, 0x5acd568a, &(0x7f000011a000-0x8)={0x0, 0x0}) socket$netlink(0x10, 0x3, 0x400000000a) socketpair(0x5, 0x5, 0x8, &(0x7f0000001000)={0x0, 0x0}) ioctl$DRM_IOCTL_GEM_OPEN(r3, 0xc010640b, &(0x7f000022d000)={0x0, 0x0, 0x3}) ioctl$DRM_IOCTL_GEM_FLINK(r3, 0xc008640a, &(0x7f0000866000-0x8)={r5, 0x0}) ioctl$DRM_IOCTL_GEM_FLINK(0xffffffffffffffff, 0xc008640a, &(0x7f0000421000)={r6, r7}) getsockopt$inet_sctp_SCTP_DISABLE_FRAGMENTS(r4, 0x84, 0x8, &(0x7f000022c000)=0x0, &(0x7f0000f51000-0x4)=0x4) socket$inet(0x2, 0x6, 0x8000000000000001) [ 53.177928] ------------[ cut here ]------------ [ 53.191237] audit: type=1326 audit(1509722475.074:4): auid=4294967295 uid=0 gid=0 ses=4294967295 subj=kernel pid=3275 comm="syz-executor1" exe="/root/syz-executor1" sig=31 arch=c000003e syscall=202 compat=0 ip=0x452869 code=0xffff0000 [ 53.220824] WARNING: CPU: 0 PID: 3282 at drivers/net/tun.c:1744 tun_get_user+0x2de3/0x36d0 [ 53.232225] Kernel panic - not syncing: panic_on_warn set ... [ 53.232225] [ 53.239586] CPU: 0 PID: 3282 Comm: syz-executor4 Not tainted 4.14.0-rc5-mm1+ #20 [ 53.247085] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.256404] Call Trace: [ 53.258966] dump_stack+0x194/0x257 [ 53.262572] ? arch_local_irq_restore+0x53/0x53 [ 53.267214] ? vsnprintf+0x1ed/0x1900 [ 53.270991] panic+0x1e4/0x41c [ 53.274158] ? refcount_error_report+0x214/0x214 [ 53.278880] ? show_regs_print_info+0x65/0x65 [ 53.283351] ? retint_kernel+0x10/0x10 [ 53.287210] ? __warn+0x1a9/0x1e0 [ 53.290638] ? tun_get_user+0x2de3/0x36d0 [ 53.294755] __warn+0x1c4/0x1e0 [ 53.298005] ? tun_get_user+0x2de3/0x36d0 [ 53.302132] report_bug+0x211/0x2d0 [ 53.305735] fixup_bug+0x40/0x90 [ 53.309073] do_trap+0x260/0x390 [ 53.312418] do_error_trap+0x120/0x390 [ 53.316276] ? kfree_skbmem+0xe2/0x1d0 [ 53.320134] ? do_trap+0x390/0x390 [ 53.323643] ? __mutex_unlock_slowpath+0xe9/0xac0 [ 53.328456] ? tun_get_user+0x2de3/0x36d0 [ 53.332583] ? wait_for_completion+0x770/0x770 [ 53.337147] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 53.341967] do_invalid_op+0x1b/0x20 [ 53.345652] invalid_op+0x18/0x20 [ 53.349075] RIP: 0010:tun_get_user+0x2de3/0x36d0 [ 53.353796] RSP: 0018:ffff8801c99df730 EFLAGS: 00010286 [ 53.359128] RAX: dffffc0000000000 RBX: ffff88019d4e1198 RCX: dffffc0000000000 [ 53.366367] RDX: ffffffff87024180 RSI: 0000000000000000 RDI: 0000000000000282 [ 53.373604] RBP: ffff8801c99dfae0 R08: 0000000000000001 R09: 0000000000000000 [ 53.380848] R10: ffffffff87069320 R11: 0000000000000000 R12: ffff8801cdcde6c0 [ 53.388088] R13: ffff88019d4e1208 R14: 0000000000000004 R15: ffff88019d390e40 [ 53.395376] ? tun_build_skb.isra.48+0x16e0/0x16e0 [ 53.400283] ? futex_wait_setup+0x3d0/0x3d0 [ 53.404580] ? check_noncircular+0x20/0x20 [ 53.408801] ? tun_get+0x1ab/0x2e0 [ 53.412320] ? lock_release+0xa40/0xa40 [ 53.416268] ? __lock_is_held+0xb6/0x140 [ 53.420311] ? tun_get+0x1d4/0x2e0 [ 53.423819] ? tun_chr_close+0x60/0x60 [ 53.427675] ? __check_object_size+0x25d/0x4f0 [ 53.432229] ? rcu_note_context_switch+0x710/0x710 [ 53.437135] tun_chr_write_iter+0xb9/0x160 [ 53.441344] do_iter_readv_writev+0x525/0x7f0 [ 53.445814] ? vfs_dedupe_file_range+0x8f0/0x8f0 [ 53.450548] ? rw_verify_area+0xe5/0x2b0 [ 53.454582] do_iter_write+0x154/0x540 [ 53.458440] ? dup_iter+0x260/0x260 [ 53.462038] ? __lock_is_held+0xb6/0x140 [ 53.466078] vfs_writev+0x18a/0x340 [ 53.469671] ? __fget_light+0x297/0x380 [ 53.473616] ? vfs_iter_write+0xb0/0xb0 [ 53.477562] ? do_filp_open+0x27d/0x3b0 [ 53.481517] ? rcu_pm_notify+0xc0/0xc0 [ 53.485381] ? __fdget_pos+0x130/0x190 [ 53.489238] ? __fdget_raw+0x20/0x20 [ 53.492920] ? rcu_read_lock_sched_held+0x108/0x120 [ 53.497907] ? kmem_cache_free+0x249/0x280 [ 53.502752] do_writev+0xfc/0x2a0 [ 53.506174] ? do_writev+0xfc/0x2a0 [ 53.509776] ? vfs_writev+0x340/0x340 [ 53.513548] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 53.518362] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 53.523351] SyS_writev+0x27/0x30 [ 53.526778] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 53.531502] RIP: 0033:0x452741 [ 53.534660] RSP: 002b:00007f0b71468b10 EFLAGS: 00000293 ORIG_RAX: 0000000000000014 [ 53.542336] RAX: ffffffffffffffda RBX: 00000000200edf4e RCX: 0000000000452741 [ 53.549572] RDX: 0000000000000004 RSI: 00007f0b71468b60 RDI: 0000000000000012 [ 53.556809] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000 [ 53.564048] R10: 00000000000000c0 R11: 0000000000000293 R12: 00000000006f3c50 [ 53.571286] R13: 00000000ffffffff R14: 00007f0b714696d4 R15: 0000000000000000 [ 53.579089] Dumping ftrace buffer: [ 53.582647] (ftrace buffer empty) [ 53.586322] Kernel Offset: disabled [ 53.589916] Rebooting in 86400 seconds..