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 '10.128.0.46' (ECDSA) to the list of known hosts. 2018/04/07 02:43:48 fuzzer started 2018/04/07 02:43:48 dialing manager at 10.128.0.26:38639 2018/04/07 02:43:54 kcov=true, comps=false 2018/04/07 02:43:57 executing program 0: r0 = syz_open_dev$loop(&(0x7f0000000000)='/dev/loop#\x00', 0x0, 0x0) ioctl$LOOP_CHANGE_FD(r0, 0x4c06, r0) 2018/04/07 02:43:57 executing program 2: r0 = perf_event_open(&(0x7f0000aaa000)={0x2, 0x70, 0x4a, 0x2, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mmap(&(0x7f0000def000/0x1000)=nil, 0x1000, 0x0, 0x11, r0, 0x0) 2018/04/07 02:43:57 executing program 6: r0 = socket$inet6(0xa, 0x80003, 0xff) connect$inet6(r0, &(0x7f0000000000)={0xa, 0x0, 0x0, @loopback={0x0, 0x1}}, 0x1c) shutdown(r0, 0x1) sendmmsg(r0, &(0x7f0000001300)=[{{0x0, 0x0, &(0x7f0000001180), 0x360, &(0x7f00000011c0)}}], 0x249, 0x0) 2018/04/07 02:43:57 executing program 3: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x101902) r1 = memfd_create(&(0x7f0000000380)='/dev/ptmx.', 0x0) ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x201, 0x0, 0x0, "6df1733d7a8a242fd899e0633f5fcea8fb5a550ed80ebba4d909c7a124d8ac39add13dc93a80f22ff9fd35a844f3e8b5ade4e5935137af6fe251190634435dca", "6aaba7a936009867bd21673a08478220febadc5ca0c0caf1f4833b9ff18a89a285f049691fdaee090426b5018b54096bdaacf1e7a2fb27febc2e8d7b46599493", "ecd2881042e088581e6e599a5591e6c882e32e7ea6697b93d32112b2bc83d72a"}) 2018/04/07 02:43:57 executing program 7: perf_event_open(&(0x7f0000723f88)={0x2, 0x70, 0xc35, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000ee1fa8)={0x26, 'hash\x00', 0x0, 0x0, 'ghash-clmulni\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000001000)="a23364fd5e580ef24d71a19dd93fc727", 0x10) sendmsg$netlink(r1, &(0x7f0000802fc8)={&(0x7f0000a78ff4)=@proc={0x10}, 0xc, &(0x7f000035b000), 0x0, &(0x7f0000f53fb0)}, 0x8000) r2 = open(&(0x7f00004b8ff8)='./file0\x00', 0x28042, 0x0) fallocate(r2, 0x0, 0x0, 0x9) sendfile(r1, r2, &(0x7f0000e64ff8), 0x8) 2018/04/07 02:43:57 executing program 5: r0 = socket$inet6_udp(0xa, 0x2, 0x0) setsockopt$inet6_mreq(r0, 0x29, 0x1b, &(0x7f00000019c0)={@dev={0xfe, 0x80}}, 0x14) 2018/04/07 02:43:57 executing program 1: r0 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000080)='/dev/sequencer2\x00', 0x1, 0x0) pwrite64(r0, &(0x7f0000000000)="c064c372b43c7e7294000b0300000060", 0x10, 0x0) 2018/04/07 02:43:57 executing program 4: perf_event_open(&(0x7f000025c000)={0x2, 0x78, 0x3e3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mkdir(&(0x7f0000eedff8)='./file0\x00', 0x0) mount(&(0x7f0000000040)='./file0/control/file0\x00', &(0x7f000000aff8)='./file0\x00', &(0x7f0000000080)='tmpfs\x00', 0x0, &(0x7f000001c000)) mkdir(&(0x7f0000024ff0)='./file0/control\x00', 0x0) symlink(&(0x7f0000c0e000)='./file0/file0\x00', &(0x7f0000640000)='./file0/control/file0\x00') syzkaller login: [ 42.467220] ip (3758) used greatest stack depth: 54672 bytes left [ 43.003980] ip (3808) used greatest stack depth: 54312 bytes left [ 44.131813] ip (3918) used greatest stack depth: 54200 bytes left [ 46.066749] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.159991] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.167978] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.177334] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.292997] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.316365] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.395753] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 46.441395] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 54.752123] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.842967] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.959143] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.980612] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 54.988492] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.050539] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.132318] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.271330] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 55.486191] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 55.495138] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.508599] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.532112] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 55.540294] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.575453] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.714880] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 55.721149] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.734567] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.776569] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 55.785784] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 55.792127] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.802475] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.838235] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.862196] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 55.884145] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 55.902481] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 55.927545] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.070879] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 56.077252] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.094564] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 56.145941] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 56.152314] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 56.167781] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/04/07 02:44:13 executing program 6: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x0) perf_event_open(&(0x7f0000940000)={0x2, 0x78, 0xfffffffffffffffe, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 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, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000100)={0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, "863f4174553e4945d739f1839f0b3123b03ec19625290e16d41b8641a2825b0b0e88eff1b3f23ec5071989f15b4446ca8e9e21d347059a106af842e028571262", "e9ffe6f1ec43def225aa2492b2a26bac9e0bd0eabaad998e348d96b37e9bffdff4bedc404000bde8b976dbc1133974b7b59765c39f06a85d28bdb5baf6ccbff6", "d4e305a680a7955ff3bd7d4909e03dcbcc7e715b8d726e3a356a0eeddc4afc6a"}) 2018/04/07 02:44:13 executing program 4: mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x1000003, 0x8031, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f000025c000)={0x2, 0x78, 0x3a2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) mremap(&(0x7f000053c000/0x1000)=nil, 0x1000, 0x12000, 0x3, &(0x7f00006ed000/0x12000)=nil) 2018/04/07 02:44:13 executing program 5: r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000001540)={0x26, 'skcipher\x00', 0x0, 0x0, 'ecb(aes-aesni)\x00'}, 0x58) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000ff8000)="0a0775b005e381e5b3b60ced5c54dbb7", 0x10) r1 = accept$alg(r0, 0x0, 0x0) sendmsg$alg(r1, &(0x7f0000000380)={0x0, 0x0, &(0x7f0000000200)=[{&(0x7f00000015c0)="ca0123d1400a5733329633c6325519237106c33491ae79003faa8528d249fcf2", 0x20}], 0x1, &(0x7f0000000340)}, 0x10) recvmsg(r1, &(0x7f0000001440)={&(0x7f0000000280)=@sco, 0x80, &(0x7f00000013c0)=[{&(0x7f00000003c0)=""/4096, 0x1000}], 0x1, &(0x7f0000001400)=""/6, 0x6}, 0x0) 2018/04/07 02:44:14 executing program 3: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x101902) r1 = memfd_create(&(0x7f0000000380)='/dev/ptmx.', 0x0) ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x201, 0x0, 0x0, "6df1733d7a8a242fd899e0633f5fcea8fb5a550ed80ebba4d909c7a124d8ac39add13dc93a80f22ff9fd35a844f3e8b5ade4e5935137af6fe251190634435dca", "6aaba7a936009867bd21673a08478220febadc5ca0c0caf1f4833b9ff18a89a285f049691fdaee090426b5018b54096bdaacf1e7a2fb27febc2e8d7b46599493", "ecd2881042e088581e6e599a5591e6c882e32e7ea6697b93d32112b2bc83d72a"}) 2018/04/07 02:44:14 executing program 7: perf_event_open(&(0x7f0000723f88)={0x2, 0x70, 0xc35, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000ee1fa8)={0x26, 'hash\x00', 0x0, 0x0, 'ghash-clmulni\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000001000)="a23364fd5e580ef24d71a19dd93fc727", 0x10) sendmsg$netlink(r1, &(0x7f0000802fc8)={&(0x7f0000a78ff4)=@proc={0x10}, 0xc, &(0x7f000035b000), 0x0, &(0x7f0000f53fb0)}, 0x8000) r2 = open(&(0x7f00004b8ff8)='./file0\x00', 0x28042, 0x0) fallocate(r2, 0x0, 0x0, 0x9) sendfile(r1, r2, &(0x7f0000e64ff8), 0x8) 2018/04/07 02:44:14 executing program 6: r0 = socket$netlink(0x10, 0x3, 0x10) sendmsg$nl_generic(r0, &(0x7f0000023000)={&(0x7f0000024000)={0x10}, 0xc, &(0x7f0000023ff0)={&(0x7f0000010ec4)={0x20, 0x30, 0xaff, 0x0, 0x0, {0x3}, [@nested={0xc, 0x0, [@typed={0x8, 0x1, @binary='\b'}]}]}, 0x20}, 0x1}, 0x0) 2018/04/07 02:44:14 executing program 2: r0 = socket$packet(0x11, 0x2, 0x300) setsockopt$packet_int(r0, 0x107, 0x11, &(0x7f0000000000), 0x1) 2018/04/07 02:44:14 executing program 3: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x101902) r1 = memfd_create(&(0x7f0000000380)='/dev/ptmx.', 0x0) ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x201, 0x0, 0x0, "6df1733d7a8a242fd899e0633f5fcea8fb5a550ed80ebba4d909c7a124d8ac39add13dc93a80f22ff9fd35a844f3e8b5ade4e5935137af6fe251190634435dca", "6aaba7a936009867bd21673a08478220febadc5ca0c0caf1f4833b9ff18a89a285f049691fdaee090426b5018b54096bdaacf1e7a2fb27febc2e8d7b46599493", "ecd2881042e088581e6e599a5591e6c882e32e7ea6697b93d32112b2bc83d72a"}) 2018/04/07 02:44:14 executing program 0: r0 = socket$inet6(0xa, 0x2, 0x0) bind$inet6(r0, &(0x7f00000001c0)={0xa, 0x0, 0x0, @dev={0xfe, 0x80}, 0x890}, 0x1c) setsockopt$inet6_IPV6_PKTINFO(r0, 0x29, 0x32, &(0x7f0000000140)={@mcast2={0xff, 0x2, [], 0x1}}, 0x14) 2018/04/07 02:44:14 executing program 5: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x10000000013, &(0x7f000039c000)=0x400000000000001, 0x4) setsockopt$inet_tcp_int(r0, 0x6, 0x14, &(0x7f00000b2000)=0xffffffffffffffff, 0x4) sendto$inet(r0, &(0x7f00005c9000), 0x0, 0x800000020000000, &(0x7f0000000080)={0x2, 0x0, @loopback=0x7f000001}, 0x10) syz_mount_image$minix(&(0x7f0000000180)='minix\x00', &(0x7f00000001c0)='./file0\x00', 0x0, 0x0, &(0x7f0000000640), 0x0, 0x0) writev(r0, &(0x7f0000818ff0)=[{&(0x7f000016bde8)='\v', 0x1}], 0x1) 2018/04/07 02:44:14 executing program 7: perf_event_open(&(0x7f0000723f88)={0x2, 0x70, 0xc35, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000ee1fa8)={0x26, 'hash\x00', 0x0, 0x0, 'ghash-clmulni\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000001000)="a23364fd5e580ef24d71a19dd93fc727", 0x10) sendmsg$netlink(r1, &(0x7f0000802fc8)={&(0x7f0000a78ff4)=@proc={0x10}, 0xc, &(0x7f000035b000), 0x0, &(0x7f0000f53fb0)}, 0x8000) r2 = open(&(0x7f00004b8ff8)='./file0\x00', 0x28042, 0x0) fallocate(r2, 0x0, 0x0, 0x9) sendfile(r1, r2, &(0x7f0000e64ff8), 0x8) 2018/04/07 02:44:14 executing program 6: futex(&(0x7f000000cffc)=0x4, 0x80000000010b, 0x4, &(0x7f0000edfff0)={0x77359400, 0x4}, &(0x7f0000048000), 0x0) futex(&(0x7f000000cffc), 0xc, 0x1, &(0x7f0000c44000)={0x77359400}, &(0x7f00000001c0), 0x0) 2018/04/07 02:44:14 executing program 1: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000140)='./cgroup\x00', 0x200002, 0x0) fchdir(r0) r1 = creat(&(0x7f0000000080)='./file0\x00', 0x0) r2 = open(&(0x7f0000ea9ff8)='./file0\x00', 0x141042, 0x0) ftruncate(r2, 0x27ffe) ftruncate(r1, 0x101) 2018/04/07 02:44:14 executing program 2: perf_event_open(&(0x7f0000271000)={0x2, 0x70, 0x4a, 0x2}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = timerfd_create(0x0, 0x0) timerfd_settime(r0, 0x3, &(0x7f0000005000)={{}, {0x0, 0x989680}}, &(0x7f0000e34fe0)) timerfd_settime(r0, 0x0, &(0x7f0000000000), &(0x7f0000000080)) 2018/04/07 02:44:14 executing program 3: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x101902) r1 = memfd_create(&(0x7f0000000380)='/dev/ptmx.', 0x0) ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x201, 0x0, 0x0, "6df1733d7a8a242fd899e0633f5fcea8fb5a550ed80ebba4d909c7a124d8ac39add13dc93a80f22ff9fd35a844f3e8b5ade4e5935137af6fe251190634435dca", "6aaba7a936009867bd21673a08478220febadc5ca0c0caf1f4833b9ff18a89a285f049691fdaee090426b5018b54096bdaacf1e7a2fb27febc2e8d7b46599493", "ecd2881042e088581e6e599a5591e6c882e32e7ea6697b93d32112b2bc83d72a"}) 2018/04/07 02:44:14 executing program 4: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f0000ed4000)=0x78, 0x4) bind$inet(r0, &(0x7f0000000300)={0x2, 0x4e23, @multicast1=0xe0000001}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000b86000)={0x1, &(0x7f0000f40ff8)=[{0x6, 0x0, 0x0, 0xe8}]}, 0x10) sendto$inet(r0, &(0x7f0000a88f88), 0x29f, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @loopback=0x7f000001}, 0x10) sendmmsg(r0, &(0x7f0000000ac0)=[{{0x0, 0x0, &(0x7f0000000700)=[{&(0x7f0000000180)='\t', 0x1}], 0x1, &(0x7f0000001040)=ANY=[]}}], 0x1, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000280)='veno\x00', 0xffd7) sendmmsg(r0, &(0x7f0000003ec0)=[{{0x0, 0x0, &(0x7f0000000980)=[{&(0x7f0000002640)="5b5331d25a71c6a64f00d90720f785f88f9e63f90f76c48feee314083a181eefab2af8a65643ebc8c2b907fdebdd7b6aabd04ebe5b3133ae10d25c8992f969f3462f985649a0d1aeb7d535535fe9ce30e21dc14811cdff61456d7141cc19a8c86d8c80ccc6639cbb396c5307933f3d1c5a346d2d3a47311974a4970abaccab9b06afbdf003eb24b16c82af83155e9b5533db3eeb4e9c0722105fdc7585c77f5238ae3d12f08c8ab6dcf0edb2490a54ac46932250eb853d86d10cff49f40797062fee0affd74773c63491ff752ddb49c505c78be21ac994dd5b3582e4d3939e431c8a98fc7fd2d6a6d34548cc47307dd4a623bb69da5d377058b49af3573e3dd190c1a950f9048a577e88c9aab27e60a4711a0c158edf8a1445deac67b943482ebfbdeceb1aafff69613a7754bd783424edae3c86005e50187e61696185fe8494a923559c39cdd418f335b65c06811e12a9b25d2bc58ab2bb49cda6a8699fe4a10689a1ffc64181f907271001d2de1cb402c33865031df009582ad070595aa7144a07fb006203e4e428cc30d8fc47b30a8b1d7a2e7cdc39e3187cf5dd4db519f5e3dd35b36c84553dfa3be3c06099cb22b3806af3b7a90e4659c41aa9c2a0b3ed4f1d81f56aa40b4afe3a61762aaa89abde22c2f1e44fb55290d0f3d042e20b2b7db5ae4485c50a14490e0f4965ff595d3736bb0b16f6cfe4d7bd17763779b5471a149d29e3ec439dbff3aca8402ad2aed98e3d8c78664045e2ab8694b912df8399a53b1a38350f4db71f6ed3f5949d4b1d1279c601c758cc948bb4cedade2bbd6d3440d23f0478d683cb35885354a5abcf820b5e5b586275d6142c4b0c05377a66db84b89c8b3101bb22d4c69fef98743f6983b1768bd170dc1c304a1af1cec8defb698ea8efe6b3c36028bc4ed4c453e499c5573296b2f5b78456c3d1663af9392474c3cf4e8af1b94dd055c71be6fc12a52646816ce59aaa6c7db0d9096139ae334d3056536448b2acccade9ffbd0d21bc4abc3c9cbd80ee95451b43d645905b9c12c6dc080121d44053092edd373f07bba0fce08ce81b7326839511e452920b7549ab98a0adacd4c46f60818b25fbda3d6589ae217215a9be3ca0b0d831029ce48e15d3ec2d75d6e220b46f03d8e54b248756e3cc136b833904416793d8b9d5b60ff999d86d2b11dd57fcff57b3d1e0299d1b307675d18a1ebf8cc69026366c79d20562e5afe0fd9fbfdeca6caaa99572f0139727a076e0678a8d0ae71e58312c559d6075f433aa5470edc34e15bb761b816aedf80765142cc1aebad3696d763a35ff2506aea52a6de15d45f079e4ac964f394e8209d3be5ff53af5abbdec85b4a5ec880265edc2ba6d4f8ff6bd64fce798504e475dbd73831c2507901407141dbdadc02180e64c1f6d4263f7e0d1aed5cb8fa216ec199eca1ea0be48d21b1c3c6f0d8135c9e25657e7e42edc07051275680055a7e70670ee6e3201347975195c33d02dba6c704f0b35674a39840f255fd67264883ebd45cab262967a2f559af9690d1ceee15d7a92836a41c0f00fef91c225ef69bd44e928538e75b59fcee67e528107731334c436c6ffb6993e00c5aa054a6ba32b928b833379f1aaf0444ed18c2849a77457964e3b7f22a7333b6aaaf25764b84189be5f224acbee0b83efb7edc06e66cf8b3049b41402607e39ef82989157877c84ba56b9ee627c6bdfc0314eecc57f84c4f6922694298d1ffd5608651b7859724209f20588405dbe9c5f6676413f34fa201d9c3f6bfacce4f9a0da75ef437216376ba3e23fa89ef119f522999bdd2d07a5666e1fe5bca544e5c04383f07967d0744ed307c1ed8f16b53960a6be54baf099b23d9c5732be429b3264196f6ceb3a5b069527793d90cadfac3826b37b65aa12fe99d3e140ceba37113bf6499904095483fd27954e9352fc84383d5ac69c1591095989d51a9bb0790b4b0801a37a88bdf301d676d7e79bdbe553bfd93698180174ab38a37cc98f3b69d52870f55c12f7919b90a213fa6009f17aa48b30d2e45366155b22a27ec0ecac8dd21d37e33759a9f0d67aa52896ebb2c288fb77076879247935835b0d250151b045e61365f6642c8120317c47e65129aba6c6916d8c1d9679e0c8d6561934b7e1d0643a47990e4ddf4afa3e633a5b33d6da9bf5f11740a54c00273021839eb0455ce71de701c5055ba815917991ca9a652f0bf3df54922ebc2396b7abf3129dd2b0f405b177631dcf63a4e847c657b9ef11d991edd2877a74d78a701d6178b478c7c8c9677f49dd1c3a922a12e9d6748048777f63e660ac6be2567255986571ed399201ada38680788b8b099410cad63f1b36bc0febd8c8296821b05bf7c03bbbc5246275565ecb270ece1dac1e2935d2e2445ed6b98c8a1405d1630409509ab39f93f4ed17ce7bbaa4d1d7414da66bff0fda914a17fc906fef8c13e4285c95b80df39ea299f4fd58f3272d4b5173d2ded98e8d87bd8db3670042d8af8351fc1b030b7ed3f64a7db9c4abb6e1d908eba5a13eca09d2ca5801f34c5abd9d2addcc6832237176d2975e3b63a49b0043cffe322167a1abf8582bf0d2a3b176e7d30081a86466215e85344463f4764753791413f02900d294ff5c3a5d71cc4067312edf554ba7243d2a5db37f296236579a4e13a5f6d00de5b7fd01f6376ff8aa19f770c2df50d73534b32cd0e5880bd2c617ac8d4cf24756c41dcfbe4a4b2f432fefae8822f76af16defa2a5b17a3aa4f8616e41890c8754f89f094e9dd8e32f642b1c7c48672b3d8ab2aa5464b6008e89d70e66300a7f2027058fbe6c88bb58f17301b35419080afd67e6c674afbf0daf5591438cb7a30da035fb70f0bc86ba49fb4eceeb9f7f4e28430a133c39b875cba0a733dd63265d5fd8db662a76ce8696bec2d92101637bba2e7c9974f1a950ed65c7df398beb9a4bcce19670c99c52f315e445875e05d879795c6c1a89029f937ac61215f183b8d865fc1aba0dabff3449784d37c20e1f73495779c1ac27743e0ccad54663e8c98a2a85e4a0ac00e69df636308cf89612416012936fc93a9310490364a134e306f1574ae37cd99ba9a4", 0x891}], 0x1, &(0x7f0000003640)}}], 0x1, 0x0) shutdown(r0, 0x1) 2018/04/07 02:44:15 executing program 0: r0 = openat$cgroup_root(0xffffffffffffff9c, &(0x7f0000000140)='./cgroup\x00', 0x200002, 0x0) fchdir(r0) r1 = creat(&(0x7f0000001180)='./file0\x00', 0x0) fallocate(r1, 0x11, 0x0, 0x1010002) 2018/04/07 02:44:15 executing program 1: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_generic(r0, &(0x7f0000005000)={&(0x7f0000000000)={0x10}, 0xc, &(0x7f00000000c0)={&(0x7f0000000100)={0x18, 0x55, 0x3fd, 0x0, 0x0, {0x10000007}, [@generic='f']}, 0x18}, 0x1}, 0x0) 2018/04/07 02:44:15 executing program 3: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x101902) memfd_create(&(0x7f0000000380)='/dev/ptmx.', 0x0) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x201, 0x0, 0x0, "6df1733d7a8a242fd899e0633f5fcea8fb5a550ed80ebba4d909c7a124d8ac39add13dc93a80f22ff9fd35a844f3e8b5ade4e5935137af6fe251190634435dca", "6aaba7a936009867bd21673a08478220febadc5ca0c0caf1f4833b9ff18a89a285f049691fdaee090426b5018b54096bdaacf1e7a2fb27febc2e8d7b46599493", "ecd2881042e088581e6e599a5591e6c882e32e7ea6697b93d32112b2bc83d72a"}) 2018/04/07 02:44:15 executing program 2: pipe2(&(0x7f0000f61000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r2 = userfaultfd(0x0) ioctl$UFFDIO_API(r2, 0xc018aa3f, &(0x7f0000000080)={0xaa}) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000d62fe0)={{&(0x7f0000011000/0x3000)=nil, 0x3000}, 0x1}) write$sndseq(r1, &(0x7f0000011fd2)=[{0x0, 0x0, 0x0, 0x0, @time, {}, {}, @quote={{}, 0x0, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, @tick, {}, {}, @ext={0x0, &(0x7f0000000040)}}}}], 0x1c) dup2(r1, r0) dup2(r0, r2) 2018/04/07 02:44:15 executing program 7: perf_event_open(&(0x7f0000723f88)={0x2, 0x70, 0xc35, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000ee1fa8)={0x26, 'hash\x00', 0x0, 0x0, 'ghash-clmulni\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000001000)="a23364fd5e580ef24d71a19dd93fc727", 0x10) sendmsg$netlink(r1, &(0x7f0000802fc8)={&(0x7f0000a78ff4)=@proc={0x10}, 0xc, &(0x7f000035b000), 0x0, &(0x7f0000f53fb0)}, 0x8000) r2 = open(&(0x7f00004b8ff8)='./file0\x00', 0x28042, 0x0) fallocate(r2, 0x0, 0x0, 0x9) sendfile(r1, r2, &(0x7f0000e64ff8), 0x8) 2018/04/07 02:44:15 executing program 5: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) bind$inet(r0, &(0x7f0000deb000)={0x2, 0x4e23, @multicast1=0xe0000001}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000b86000)={0x1, &(0x7f0000f40ff8)=[{0x6, 0x0, 0x0, 0xe8}]}, 0x10) sendto$inet(r0, &(0x7f0000a88f88), 0x29f, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @loopback=0x7f000001}, 0x10) sendmmsg(r0, &(0x7f00000025c0)=[{{&(0x7f0000000300)=@pppoe={0x18, 0x0, {0x0, @link_local={0x1, 0x80, 0xc2}, 'ip6tnl0\x00'}}, 0x80, &(0x7f0000000380)=[{&(0x7f00000010c0)="9421e5271f45907f567d604a09fe27abfa55e2aebecfe4a0aeda13b3d2418870405797686467855ad166a77fa809f72ab92d438b38975596f98c0c03126989f5a4a3fe4878335988dfb98b11d880cc928c21fccdcf2086d98e2ac4ab265ff234ba0a86ee14bbb2bf4cc210f6ca6a5d3d18d3110ac82704ac8a979bebe6ea1a803cb5a21babf0a28c6741f5493a7189c764564aa039257ce92830f1a25bb6fb553231195be0ff72269d4b8503dbb0bc6c23f0341aa626735a002006f6c2b036efa5d1e087ee6181ffb3", 0xc9}], 0x1}}], 0x1, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f00000008c0)='scalable\x00', 0x9) shutdown(r0, 0x1) recvmsg(r0, &(0x7f0000000680)={&(0x7f0000000200)=@can, 0x80, &(0x7f00000005c0)=[{&(0x7f0000001500)=""/4096, 0x1000}], 0x1, &(0x7f0000000600)=""/104, 0x68}, 0x100) 2018/04/07 02:44:15 executing program 6: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f0000ed4000)=0x78, 0x4) bind$inet(r0, &(0x7f0000000300)={0x2, 0x4e23, @multicast1=0xe0000001}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000b86000)={0x1, &(0x7f0000f40ff8)=[{0x6, 0x0, 0x0, 0xe8}]}, 0x10) sendto$inet(r0, &(0x7f0000a88f88), 0x29f, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @loopback=0x7f000001}, 0x10) sendmmsg(r0, &(0x7f0000000ac0)=[{{0x0, 0x0, &(0x7f0000000700)=[{&(0x7f0000000180)='\t', 0x1}], 0x1, &(0x7f0000001040)=ANY=[]}}], 0x1, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000280)='veno\x00', 0xffd7) sendmmsg(r0, &(0x7f0000003ec0)=[{{0x0, 0x0, &(0x7f0000000980)=[{&(0x7f0000002640)="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", 0x891}], 0x1, &(0x7f0000003640)}}], 0x1, 0x0) shutdown(r0, 0x1) 2018/04/07 02:44:15 executing program 4: r0 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x80000000000002, &(0x7f0000ed4000)=0x78, 0x4) bind$inet(r0, &(0x7f0000000300)={0x2, 0x4e23, @multicast1=0xe0000001}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000b86000)={0x1, &(0x7f0000f40ff8)=[{0x6, 0x0, 0x0, 0xe8}]}, 0x10) sendto$inet(r0, &(0x7f0000a88f88), 0x29f, 0x200007fd, &(0x7f0000e68000)={0x2, 0x4e23, @loopback=0x7f000001}, 0x10) sendmmsg(r0, &(0x7f0000000ac0)=[{{0x0, 0x0, &(0x7f0000000700)=[{&(0x7f0000000180)='\t', 0x1}], 0x1, &(0x7f0000001040)=ANY=[]}}], 0x1, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f0000000280)='veno\x00', 0xffd7) sendmmsg(r0, &(0x7f0000003ec0)=[{{0x0, 0x0, &(0x7f0000000980)=[{&(0x7f0000002640)="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", 0x891}], 0x1, &(0x7f0000003640)}}], 0x1, 0x0) shutdown(r0, 0x1) [ 58.974666] PF_BRIDGE: br_mdb_parse() with unknown ifindex 2018/04/07 02:44:16 executing program 3: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x101902) memfd_create(&(0x7f0000000380)='/dev/ptmx.', 0x0) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x201, 0x0, 0x0, "6df1733d7a8a242fd899e0633f5fcea8fb5a550ed80ebba4d909c7a124d8ac39add13dc93a80f22ff9fd35a844f3e8b5ade4e5935137af6fe251190634435dca", "6aaba7a936009867bd21673a08478220febadc5ca0c0caf1f4833b9ff18a89a285f049691fdaee090426b5018b54096bdaacf1e7a2fb27febc2e8d7b46599493", "ecd2881042e088581e6e599a5591e6c882e32e7ea6697b93d32112b2bc83d72a"}) 2018/04/07 02:44:16 executing program 4: tkill(0x0, 0x0) perf_event_open(&(0x7f000001d000)={0x2, 0x78, 0xe2}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet6(0xa, 0x1, 0x8010000000000084) sendto$inet6(r0, &(0x7f000023effe)="7f", 0x1, 0x0, &(0x7f000010e000)={0xa, 0x0, 0x0, @loopback={0x0, 0x1}}, 0x1c) getsockopt$inet_sctp6_SCTP_GET_LOCAL_ADDRS(r0, 0x84, 0x6d, &(0x7f0000000700), &(0x7f0000000740)=0x8) 2018/04/07 02:44:16 executing program 6: r0 = socket$inet(0x2, 0x2, 0x0) mmap(&(0x7f000092d000/0x400000)=nil, 0x400000, 0xfffffffffffffffc, 0x8972, 0xffffffffffffffff, 0x0) bind$inet(r0, &(0x7f0000134000)={0x2, 0x4e23, @broadcast=0xffffffff}, 0x10) connect$inet(r0, &(0x7f00009322c4)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff, 0xaa}}, 0x10) 2018/04/07 02:44:16 executing program 1: r0 = syz_open_dev$sndseq(&(0x7f0000ff0ff3)='/dev/snd/seq\x00', 0x0, 0x0) read(r0, &(0x7f0000fb6000)=""/28, 0x1c) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000418f50)={{0x80}, "0a4ceaa05d9a00000000000000039b3fd4cec307e8ef3d13eb790ec9c65abaf90d229db692542e5b78f8b29e0a27800f0000000000000009fb42f376589701a4", 0xa9824f69d1376637, 0x10800a}) ioctl$SNDRV_SEQ_IOCTL_REMOVE_EVENTS(r0, 0x4040534e, &(0x7f000019ffe9)={0xc1}) ioctl$SNDRV_SEQ_IOCTL_GET_CLIENT_INFO(r0, 0xc0bc5310, &(0x7f0000000280)) ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(r0, 0xc08c5332, &(0x7f00000000c0)={0x9, 0x0, 0x0, 'queue1\x00'}) openat$sequencer2(0xffffffffffffff9c, &(0x7f0000fdbff0)='/dev/sequencer2\x00', 0x0, 0x0) 2018/04/07 02:44:16 executing program 0: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x101902) r1 = memfd_create(&(0x7f0000000140)="000000008c00000000000000000000", 0x0) pwritev(r1, &(0x7f0000f50f90)=[{&(0x7f0000000100)="aa", 0x1}], 0x1, 0x81003) ioctl$LOOP_CHANGE_FD(r0, 0x4c00, r1) readv(r0, &(0x7f00000000c0)=[{&(0x7f0000000040)=""/40, 0x28}], 0x1) sendfile(r0, r0, &(0x7f00000ddff8), 0x102000001) 2018/04/07 02:44:16 executing program 7: perf_event_open(&(0x7f0000723f88)={0x2, 0x70, 0xc35, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000ee1fa8)={0x26, 'hash\x00', 0x0, 0x0, 'ghash-clmulni\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000001000)="a23364fd5e580ef24d71a19dd93fc727", 0x10) sendmsg$netlink(r1, &(0x7f0000802fc8)={&(0x7f0000a78ff4)=@proc={0x10}, 0xc, &(0x7f000035b000), 0x0, &(0x7f0000f53fb0)}, 0x8000) r2 = open(&(0x7f00004b8ff8)='./file0\x00', 0x28042, 0x0) sendfile(r1, r2, &(0x7f0000e64ff8), 0x8) 2018/04/07 02:44:17 executing program 3: r0 = syz_open_dev$loop(&(0x7f0000ca9ff5)='/dev/loop#\x00', 0x0, 0x101902) memfd_create(&(0x7f0000000380)='/dev/ptmx.', 0x0) ioctl$LOOP_SET_STATUS64(r0, 0x4c04, &(0x7f0000000140)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x201, 0x0, 0x0, "6df1733d7a8a242fd899e0633f5fcea8fb5a550ed80ebba4d909c7a124d8ac39add13dc93a80f22ff9fd35a844f3e8b5ade4e5935137af6fe251190634435dca", "6aaba7a936009867bd21673a08478220febadc5ca0c0caf1f4833b9ff18a89a285f049691fdaee090426b5018b54096bdaacf1e7a2fb27febc2e8d7b46599493", "ecd2881042e088581e6e599a5591e6c882e32e7ea6697b93d32112b2bc83d72a"}) 2018/04/07 02:44:17 executing program 5: r0 = syz_open_dev$sg(&(0x7f0000005000)='/dev/sg#\x00', 0x0, 0x8002) write$sndseq(r0, &(0x7f0000000240)=[{0x0, 0x0, 0x0, 0x0, @tick, {}, {}, @raw32}], 0x30) write(r0, &(0x7f00006a5f8c)="dbef803e3d9f5de1e22055bb7c8a326fe46092b6682d9ad789c5d7acad0e771f13d8cb59029b011ded54a09c41c6cfcfbcd743cc665c32af223d42438b496a0304891c88697aff07d4a70f330e6fe3a1c9c76f314ffab329", 0x58) write$evdev(r0, &(0x7f0000a59000)=[{{0x0, 0x7530}}, {}], 0x30) 2018/04/07 02:44:17 executing program 4: r0 = socket$inet(0x2, 0x1, 0x0) r1 = dup(r0) bind$inet(r0, &(0x7f000012e000)={0x2, 0x4e23, @broadcast=0xffffffff}, 0x10) setsockopt$SO_ATTACH_FILTER(r0, 0x1, 0x1a, &(0x7f0000e9bff0)={0x1, &(0x7f0000f07000)=[{0x6, 0x0, 0x0, 0x101}]}, 0x10) connect$inet(r0, &(0x7f0000987000)={0x2, 0x4e23}, 0x10) sendto$inet(r0, &(0x7f00002e8f1e)="96427feebcc603c266d2a2c2da2644124066d6c52746a66fd07a4a9370b924b494651c3febca0be535e0f30bbafe65b8b859d6696b208f558b002bbc2366429da28cdb97727474f32fcce772ce439a1b5785bb74b8040705191a3d28e775b402a04cdf7881cf1c80eb042835db0e8c24fd0e3c0f396da612f44d9999de32f883521dfa4593a5772e19b5c0c27ace555870d7fe3a1819c614a8d9447cfa592c236d96bf255bf3966b0c1c34711ce489df2032a31902ae0742b79d7334ef248790fa0e3787e4b945215cddc03c4f384e6815bab43d34b8c04eb06ff00f10743a0e25f6", 0xe2, 0x0, &(0x7f0000848ff0)={0x2, 0x0, @remote={0xac, 0x14, 0xffffffffffffffff, 0xbb}}, 0x10) sendto$inet(r1, &(0x7f0000386fa0)='\x00', 0x1, 0x1, 0x0, 0x0) setsockopt$inet_tcp_TCP_MD5SIG(r0, 0x6, 0xe, &(0x7f0000000140)={@in={{0x2, 0x0, @loopback=0x7f000001}}, 0x0, 0x7, 0x0, "f52ad706f56d0396cd21b3c7dc2d7f20845ac41190a65216ac7d4bb134d03f4b5c72c907ebd37a54061f01c47384d91dd86e97da94655976d59966cbfe35a075156dcd76e80c1ceed7eba92db81434f3"}, 0xd8) sendto$inet(r1, &(0x7f00002bff1e)="f9", 0x1, 0x0, &(0x7f0000000280)={0x2, 0x0, @local={0xac, 0x14, 0xffffffffffffffff, 0xaa}}, 0x10) 2018/04/07 02:44:17 executing program 6: r0 = syz_open_dev$sg(&(0x7f0000005000)='/dev/sg#\x00', 0x0, 0x0) ioctl(r0, 0x44000002285, &(0x7f000045bfd3)) 2018/04/07 02:44:17 executing program 7: perf_event_open(&(0x7f0000723f88)={0x2, 0x70, 0xc35, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000ee1fa8)={0x26, 'hash\x00', 0x0, 0x0, 'ghash-clmulni\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000001000)="a23364fd5e580ef24d71a19dd93fc727", 0x10) sendmsg$netlink(r1, &(0x7f0000802fc8)={&(0x7f0000a78ff4)=@proc={0x10}, 0xc, &(0x7f000035b000), 0x0, &(0x7f0000f53fb0)}, 0x8000) r2 = open(&(0x7f00004b8ff8)='./file0\x00', 0x28042, 0x0) sendfile(r1, r2, &(0x7f0000e64ff8), 0x8) 2018/04/07 02:44:17 executing program 2: pipe2(&(0x7f0000f61000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x0) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r2 = userfaultfd(0x0) ioctl$UFFDIO_API(r2, 0xc018aa3f, &(0x7f0000000080)={0xaa}) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000d62fe0)={{&(0x7f0000011000/0x3000)=nil, 0x3000}, 0x1}) write$sndseq(r1, &(0x7f0000011fd2)=[{0x0, 0x0, 0x0, 0x0, @time, {}, {}, @quote={{}, 0x0, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, @tick, {}, {}, @ext={0x0, &(0x7f0000000040)}}}}], 0x1c) dup2(r1, r0) dup2(r0, r2) 2018/04/07 02:44:17 executing program 1: r0 = syz_open_dev$sndseq(&(0x7f0000ff0ff3)='/dev/snd/seq\x00', 0x0, 0x0) read(r0, &(0x7f0000fb6000)=""/28, 0x1c) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000418f50)={{0x80}, "0a4ceaa05d9a00000000000000039b3fd4cec307e8ef3d13eb790ec9c65abaf90d229db692542e5b78f8b29e0a27800f0000000000000009fb42f376589701a4", 0xa9824f69d1376637, 0x10800a}) ioctl$SNDRV_SEQ_IOCTL_REMOVE_EVENTS(r0, 0x4040534e, &(0x7f000019ffe9)={0xc1}) ioctl$SNDRV_SEQ_IOCTL_GET_CLIENT_INFO(r0, 0xc0bc5310, &(0x7f0000000280)) ioctl$SNDRV_SEQ_IOCTL_CREATE_QUEUE(r0, 0xc08c5332, &(0x7f00000000c0)={0x9, 0x0, 0x0, 'queue1\x00'}) openat$sequencer2(0xffffffffffffff9c, &(0x7f0000fdbff0)='/dev/sequencer2\x00', 0x0, 0x0) 2018/04/07 02:44:17 executing program 0: r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x19, &(0x7f0000000000)=0x6, 0x4) bind$inet(r0, &(0x7f0000000200)={0x2, 0x4e21, @multicast2=0xe0000002}, 0x10) sendto$inet(r0, &(0x7f0000588fff), 0xffffffffffffff3e, 0x20020003, &(0x7f0000385ff0)={0x2, 0x4e21, @loopback=0x7f000001}, 0x10) poll(&(0x7f0000000240)=[{r0}], 0x1, 0x0) [ 60.182610] Buffer I/O error on dev loop0, logical block 0, async page read [ 60.299277] ================================================================== [ 60.306691] BUG: KMSAN: uninit-value in tcp_parse_options+0xd74/0x1a30 [ 60.313351] CPU: 0 PID: 5219 Comm: syz-executor4 Not tainted 4.16.0+ #81 [ 60.320188] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.329531] Call Trace: [ 60.332118] dump_stack+0x185/0x1d0 [ 60.335750] ? tcp_parse_options+0xd74/0x1a30 [ 60.340244] kmsan_report+0x142/0x240 [ 60.344045] __msan_warning_32+0x6c/0xb0 [ 60.348111] tcp_parse_options+0xd74/0x1a30 [ 60.352446] tcp_validate_incoming+0x4f1/0x2790 [ 60.357127] tcp_rcv_established+0xf60/0x2bb0 [ 60.361629] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 60.366994] tcp_v4_do_rcv+0x6cd/0xd90 [ 60.370881] ? inet_sk_rx_dst_set+0x2c0/0x2c0 [ 60.375385] __release_sock+0x2d6/0x680 [ 60.379373] release_sock+0x97/0x2a0 [ 60.383091] tcp_sendmsg+0xd6/0x100 [ 60.386724] ? tcp_sendmsg_locked+0x6d20/0x6d20 [ 60.391394] inet_sendmsg+0x48d/0x740 2018/04/07 02:44:17 executing program 6: r0 = syz_open_procfs(0x0, &(0x7f0000001f00)="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") unshare(0x40600) fgetxattr(r0, &(0x7f0000000080)=@known='user.syz\x00', &(0x7f00000001c0)=""/13, 0xfffffffffffffde5) 2018/04/07 02:44:17 executing program 6: r0 = socket$inet6(0xa, 0x802, 0x0) setsockopt$inet6_IPV6_FLOWLABEL_MGR(r0, 0x29, 0x20, &(0x7f0000000040)={@loopback={0x0, 0x1}, 0x0, 0x2}, 0x20) [ 60.395194] ? security_socket_sendmsg+0x9e/0x210 [ 60.400039] ? inet_getname+0x500/0x500 [ 60.404009] SYSC_sendto+0x6c3/0x7e0 [ 60.407723] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 60.413170] ? prepare_exit_to_usermode+0x149/0x3a0 [ 60.418197] SyS_sendto+0x8a/0xb0 [ 60.421646] do_syscall_64+0x309/0x430 [ 60.425536] ? SYSC_getpeername+0x560/0x560 [ 60.429860] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 60.435043] RIP: 0033:0x455259 [ 60.438227] RSP: 002b:00007f2fbdc26c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c 2018/04/07 02:44:17 executing program 6: gettid() socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000a44000)={0xffffffffffffffff, 0xffffffffffffffff}) perf_event_open(&(0x7f0000271000)={0x0, 0x70}, 0x0, 0x0, 0xffffffffffffffff, 0x0) readv(r0, &(0x7f0000000140)=[{&(0x7f0000000100)=""/38, 0x26}], 0x1) clock_nanosleep(0x0, 0x0, &(0x7f00006ba000)={0x0, 0x1c9c380}, &(0x7f0000daaff8)) mmap(&(0x7f0000000000/0xb36000)=nil, 0xb36000, 0x3, 0x8031, 0xffffffffffffffff, 0x0) munmap(&(0x7f0000a95000/0x2000)=nil, 0x2000) [ 60.445933] RAX: ffffffffffffffda RBX: 00007f2fbdc276d4 RCX: 0000000000455259 [ 60.453198] RDX: 0000000000000001 RSI: 00000000202bff1e RDI: 0000000000000014 [ 60.460461] RBP: 000000000072bea0 R08: 0000000020000280 R09: 0000000000000010 [ 60.467724] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 60.474987] R13: 00000000000004f7 R14: 00000000006fa7c8 R15: 0000000000000000 [ 60.482249] [ 60.483863] Uninit was created at: [ 60.487403] kmsan_internal_poison_shadow+0xb8/0x1b0 [ 60.492505] kmsan_kmalloc+0x94/0x100 [ 60.496303] kmsan_slab_alloc+0x11/0x20 2018/04/07 02:44:17 executing program 7: perf_event_open(&(0x7f0000723f88)={0x2, 0x70, 0xc35, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000ee1fa8)={0x26, 'hash\x00', 0x0, 0x0, 'ghash-clmulni\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000001000)="a23364fd5e580ef24d71a19dd93fc727", 0x10) sendmsg$netlink(r1, &(0x7f0000802fc8)={&(0x7f0000a78ff4)=@proc={0x10}, 0xc, &(0x7f000035b000), 0x0, &(0x7f0000f53fb0)}, 0x8000) r2 = open(&(0x7f00004b8ff8)='./file0\x00', 0x28042, 0x0) sendfile(r1, r2, &(0x7f0000e64ff8), 0x8) [ 60.500281] __kmalloc_node_track_caller+0xaed/0x11c0 [ 60.505469] __alloc_skb+0x2cf/0x9f0 [ 60.509184] sk_stream_alloc_skb+0x17c/0xcf0 [ 60.513591] tcp_sendmsg_locked+0x2cc0/0x6d20 [ 60.518082] tcp_sendmsg+0xb2/0x100 [ 60.521703] inet_sendmsg+0x48d/0x740 [ 60.525507] SYSC_sendto+0x6c3/0x7e0 [ 60.529220] SyS_sendto+0x8a/0xb0 [ 60.532668] do_syscall_64+0x309/0x430 [ 60.536555] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 60.541730] ================================================================== [ 60.549077] Disabling lock debugging due to kernel taint [ 60.554518] Kernel panic - not syncing: panic_on_warn set ... [ 60.554518] [ 60.561887] CPU: 0 PID: 5219 Comm: syz-executor4 Tainted: G B 4.16.0+ #81 [ 60.570019] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.579370] Call Trace: [ 60.581957] dump_stack+0x185/0x1d0 [ 60.585580] panic+0x39d/0x940 [ 60.588797] ? tcp_parse_options+0xd74/0x1a30 [ 60.593292] kmsan_report+0x238/0x240 2018/04/07 02:44:17 executing program 7: perf_event_open(&(0x7f0000723f88)={0x2, 0x70, 0xc35, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r0 = socket$alg(0x26, 0x5, 0x0) bind$alg(r0, &(0x7f0000ee1fa8)={0x26, 'hash\x00', 0x0, 0x0, 'ghash-clmulni\x00'}, 0x58) r1 = accept$alg(r0, 0x0, 0x0) setsockopt$ALG_SET_KEY(r0, 0x117, 0x1, &(0x7f0000001000)="a23364fd5e580ef24d71a19dd93fc727", 0x10) sendmsg$netlink(r1, &(0x7f0000802fc8)={&(0x7f0000a78ff4)=@proc={0x10}, 0xc, &(0x7f000035b000), 0x0, &(0x7f0000f53fb0)}, 0x8000) fallocate(0xffffffffffffffff, 0x0, 0x0, 0x9) sendfile(r1, 0xffffffffffffffff, &(0x7f0000e64ff8), 0x8) [ 60.597095] __msan_warning_32+0x6c/0xb0 [ 60.601157] tcp_parse_options+0xd74/0x1a30 [ 60.605490] tcp_validate_incoming+0x4f1/0x2790 [ 60.610170] tcp_rcv_established+0xf60/0x2bb0 [ 60.614674] ? __msan_metadata_ptr_for_load_4+0x10/0x20 [ 60.620042] tcp_v4_do_rcv+0x6cd/0xd90 [ 60.623932] ? inet_sk_rx_dst_set+0x2c0/0x2c0 [ 60.628430] __release_sock+0x2d6/0x680 [ 60.632405] release_sock+0x97/0x2a0 [ 60.636125] tcp_sendmsg+0xd6/0x100 [ 60.639755] ? tcp_sendmsg_locked+0x6d20/0x6d20 [ 60.644427] inet_sendmsg+0x48d/0x740 [ 60.648231] ? security_socket_sendmsg+0x9e/0x210 [ 60.653074] ? inet_getname+0x500/0x500 [ 60.657053] SYSC_sendto+0x6c3/0x7e0 [ 60.660771] ? __msan_metadata_ptr_for_store_4+0x13/0x20 [ 60.666221] ? prepare_exit_to_usermode+0x149/0x3a0 [ 60.671249] SyS_sendto+0x8a/0xb0 [ 60.674708] do_syscall_64+0x309/0x430 [ 60.678601] ? SYSC_getpeername+0x560/0x560 [ 60.682929] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 60.688111] RIP: 0033:0x455259 [ 60.691292] RSP: 002b:00007f2fbdc26c68 EFLAGS: 00000246 ORIG_RAX: 000000000000002c [ 60.698992] RAX: ffffffffffffffda RBX: 00007f2fbdc276d4 RCX: 0000000000455259 [ 60.706252] RDX: 0000000000000001 RSI: 00000000202bff1e RDI: 0000000000000014 [ 60.713512] RBP: 000000000072bea0 R08: 0000000020000280 R09: 0000000000000010 [ 60.720776] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 60.728039] R13: 00000000000004f7 R14: 00000000006fa7c8 R15: 0000000000000000 [ 60.735718] Dumping ftrace buffer: [ 60.739237] (ftrace buffer empty) [ 60.743094] Kernel Offset: disabled [ 60.746694] Rebooting in 86400 seconds..