ADDR_FAMILY={0x8, 0xb, 0x2}, @IPVS_DEST_ATTR_U_THRESH={0x8, 0x5, 0x1}, @IPVS_DEST_ATTR_ACTIVE_CONNS={0x8, 0x7, 0x200}, @IPVS_DEST_ATTR_PERSIST_CONNS={0x8, 0x9, 0x34e}, @IPVS_DEST_ATTR_U_THRESH={0x8, 0x5, 0x1}]}, @IPVS_CMD_ATTR_DAEMON={0x78, 0x3, [@IPVS_DAEMON_ATTR_MCAST_TTL={0x8, 0x8, 0x101}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @remote={0xfe, 0x80, [], 0xbb}}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x8, 0x4, 0x7}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @dev={0xfe, 0x80, [], 0x16}}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8, 0x3, 0x1}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x1}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x8, 0x4, 0x3}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @mcast1={0xff, 0x1, [], 0x1}}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8, 0x3, 0x2}, @IPVS_DAEMON_ATTR_MCAST_PORT={0x8, 0x7, 0x4e21}]}, @IPVS_CMD_ATTR_TIMEOUT_TCP={0x8, 0x4, 0x401}, @IPVS_CMD_ATTR_DAEMON={0x28, 0x3, [@IPVS_DAEMON_ATTR_MCAST_IFN={0x14, 0x2, 'bond0\x00'}, @IPVS_DAEMON_ATTR_SYNC_ID={0x8, 0x3, 0x3}, @IPVS_DAEMON_ATTR_MCAST_GROUP={0x8, 0x5, @multicast1=0xe0000001}]}]}, 0x134}, 0x1, 0x0, 0x0, 0x8000}, 0x4000800) getsockopt$inet_IP_XFRM_POLICY(r1, 0x0, 0x11, &(0x7f00000003c0)={{{@in6=@mcast1, @in6=@remote}}, {{@in=@loopback}, 0x0, @in=@dev}}, &(0x7f00000000c0)=0xe8) 2018/05/02 09:52:57 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:57 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:57 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 462.029842] FAULT_FLAG_ALLOW_RETRY missing 30 [ 462.034622] CPU: 0 PID: 29846 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 462.042235] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 462.051580] ffff8801c9c5f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 462.059621] ffff8801d7765800 ffff8801c9c5fa20 0000000000000000 ffff8801c9c5fa48 [ 462.067660] ffffffff81cb75eb 0000000000000dca ffff8801d384b908 ffff8801d776590c [ 462.075691] Call Trace: [ 462.078266] [] dump_stack+0xc1/0x128 [ 462.083623] [] handle_userfault.cold.18+0x3e/0x51 [ 462.090111] [] ? debug_check_no_locks_freed+0x210/0x210 [ 462.097120] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 462.103519] [] ? preempt_schedule+0x25/0x30 [ 462.109486] [] ? ___preempt_schedule+0x16/0x18 [ 462.115720] [] ? handle_mm_fault+0x1267/0x28e0 [ 462.121945] [] ? handle_mm_fault+0x220f/0x28e0 [ 462.128166] [] handle_mm_fault+0x221d/0x28e0 [ 462.134220] [] ? vm_insert_mixed+0x200/0x200 [ 462.140275] [] __do_page_fault+0x5af/0xd50 [ 462.146151] [] ? mm_fault_error+0x2c0/0x2c0 [ 462.152113] [] ? exit_robust_list+0x220/0x220 [ 462.158247] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 462.164907] [] do_page_fault+0x27/0x30 [ 462.170437] [] page_fault+0x28/0x30 [ 462.175705] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 462.182531] [] ? SyS_pselect6+0x1be/0x540 [ 462.188319] [] ? SyS_select+0x1e0/0x1e0 [ 462.193936] [] ? SyS_futex+0x206/0x310 [ 462.199535] [] ? do_futex+0x1770/0x1770 [ 462.205151] [] ? security_file_ioctl+0x8f/0xc0 [ 462.211373] [] ? do_syscall_64+0x48/0x490 [ 462.217168] [] ? SyS_select+0x1e0/0x1e0 [ 462.222867] [] do_syscall_64+0x1a6/0x490 [ 462.228570] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:52:58 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 3: r0 = dup(0xffffffffffffff9c) epoll_wait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}, {}, {}], 0x9, 0x5) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r1 = userfaultfd(0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r1, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) r2 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000080)='/dev/hwrng\x00', 0x101100, 0x0) ioctl$SG_SET_DEBUG(r2, 0x227e, &(0x7f00000000c0)) fcntl$getown(r2, 0x9) r3 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x480240, 0x0) ioctl$EVIOCSREP(r3, 0x40084503, &(0x7f0000000040)=[0xdc, 0x1379]) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:52:58 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x5}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$sock_inet_SIOCDELRT(r1, 0x890c, &(0x7f0000000240)={0x100000001, {0x2, 0x4e24, @multicast2=0xe0000002}, {0x2, 0x4e22, @local={0xac, 0x14, 0x14, 0xaa}}, {0x2, 0x4e23, @local={0xac, 0x14, 0x14, 0xaa}}, 0x80, 0x7, 0xce, 0x3f, 0x5, &(0x7f00000000c0)='team_slave_0\x00', 0x10000, 0x3ff, 0xfffffffffffffff7}) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0xa, 0x4000000000080002, 0x11) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) setsockopt$IP_VS_SO_SET_TIMEOUT(r1, 0x0, 0x48a, &(0x7f00000000c0)={0x1, 0x9, 0x1fffe0000}, 0xc) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000080)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0x4, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) getsockopt$inet_sctp_SCTP_PRIMARY_ADDR(r0, 0x84, 0x6, &(0x7f0000000240)={0x0, @in={{0x2, 0x4e24, @broadcast=0xffffffff}}}, &(0x7f00000003c0)=0x84) setsockopt$inet_sctp6_SCTP_DEFAULT_SNDINFO(r0, 0x84, 0x22, &(0x7f0000000400)={0x20, 0x204, 0xfffffffffffffff8, 0x921, r3}, 0x10) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$ipx_IPX_TYPE(r0, 0x100, 0x1, &(0x7f0000000040)=0xfff, 0x4) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:58 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) ioctl$TIOCGPGRP(r0, 0x540f, &(0x7f00000000c0)=0x0) ioprio_get$pid(0x2, r3) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) stat(&(0x7f0000000280)='./file0\x00', &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0, 0x0}) sendmsg$nl_netfilter(r0, &(0x7f0000000480)={&(0x7f0000000240)={0x10, 0x0, 0x0, 0x4002000}, 0xc, &(0x7f0000000440)={&(0x7f00000002c0)={0x1c, 0x5, 0xf, 0x400, 0x70bd2c, 0x25dfdbfc, {0x1, 0x0, 0x4}, [@typed={0x8, 0x13, @uid=r4}]}, 0x1c}, 0x1, 0x0, 0x0, 0x1}, 0x800) 2018/05/02 09:52:58 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:59 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:59 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 463.667461] FAULT_FLAG_ALLOW_RETRY missing 30 [ 463.672149] CPU: 1 PID: 29910 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 463.679763] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 463.689106] ffff8801cb76f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 463.697124] ffff8801d7764180 ffff8801cb76fa20 0000000000000000 ffff8801cb76fa48 [ 463.705110] ffffffff81cb75eb 0000000000000dca ffff88019178b908 ffff8801d776428c [ 463.713100] Call Trace: [ 463.715663] [] dump_stack+0xc1/0x128 [ 463.721002] [] handle_userfault.cold.18+0x3e/0x51 [ 463.727485] [] ? debug_check_no_locks_freed+0x210/0x210 [ 463.734474] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 463.740857] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 463.748019] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 463.754832] [] ? handle_mm_fault+0x1267/0x28e0 [ 463.761036] [] ? handle_mm_fault+0x220f/0x28e0 [ 463.767241] [] handle_mm_fault+0x221d/0x28e0 [ 463.773276] [] ? vm_insert_mixed+0x200/0x200 [ 463.779310] [] __do_page_fault+0x5af/0xd50 [ 463.785180] [] ? mm_fault_error+0x2c0/0x2c0 [ 463.791125] [] ? exit_robust_list+0x220/0x220 [ 463.797242] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 463.803881] [] do_page_fault+0x27/0x30 [ 463.809392] [] page_fault+0x28/0x30 [ 463.814642] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 463.821480] [] ? SyS_pselect6+0x1be/0x540 [ 463.827253] [] ? SyS_select+0x1e0/0x1e0 [ 463.832851] [] ? SyS_futex+0x206/0x310 [ 463.838363] [] ? do_futex+0x1770/0x1770 [ 463.843963] [] ? security_file_ioctl+0x8f/0xc0 [ 463.850167] [] ? do_syscall_64+0x48/0x490 [ 463.855936] [] ? SyS_select+0x1e0/0x1e0 [ 463.861534] [] do_syscall_64+0x1a6/0x490 [ 463.867220] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:52:59 executing program 1: r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:52:59 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:00 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:00 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:00 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f00000002c0)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in={0x2, 0x4e20, @loopback=0x7f000001}, 0x10, &(0x7f0000d1e000), 0x0, &(0x7f0000000240)}], 0x492492492492733, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$sock_SIOCGIFCONF(r0, 0x8910, &(0x7f00000000c0)=@buf={0xea, &(0x7f00000003c0)="f242872978a536d1032629d669b63c9ddfa9e5ba4c114ca23e18b9508d2f9a17be594407188242421b892428d08dafebbe12cbc8afcd66d9720b83b810adcff53e7f229fca4ea32a36ec1ea3e8b7e2e4b3401bb7f9350bc72ad059e6877231a5d5b908abd1e71e7364e11a2b2f6721f4e0b76bac532ed0116a67dfa71c66702b5913aa64e9bea7a46f974ff01cd99406c9782809c987ec860a072315b9d42f3c3c16b36dba2904c1a897e5a9b8fdb788c03a6b0be3fe4d6d65063344d2f3dd1306f815962d8da60f483931e81644e8a523d9ca50546c5e8389c7e1827c76f60ca9b385292827eb315142"}) 2018/05/02 09:53:00 executing program 2: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:00 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$sock_inet_SIOCRTMSG(r1, 0x890d, &(0x7f0000000240)={0xff, {0x2, 0x4e21, @local={0xac, 0x14, 0x14, 0xaa}}, {0x2, 0x4e22, @remote={0xac, 0x14, 0x14, 0xbb}}, {0x2, 0x4e23}, 0x44, 0x4577, 0x80, 0xf5, 0x7ff, &(0x7f00000000c0)='bridge_slave_1\x00', 0x0, 0x100000001, 0x4}) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:00 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000011000/0x3000)=nil, 0x3000}, 0x2}) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0)={0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff}, &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) syz_open_dev$ndb(&(0x7f0000000040)='/dev/nbd#\x00', 0x0, 0x10000) 2018/05/02 09:53:00 executing program 1: r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:00 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00'}) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:00 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}, {}], 0x1555571c, 0xffffffffffffff85, &(0x7f00000001c0)={0xa}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x1f, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:00 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00'}) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 465.595257] FAULT_FLAG_ALLOW_RETRY missing 30 [ 465.599939] CPU: 1 PID: 29970 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 465.607552] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 465.616895] ffff8801c154f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 465.624933] ffff8801b935a600 ffff8801c154fa20 0000000000000000 ffff8801c154fa48 [ 465.632966] ffffffff81cb75eb 0000000000000dca ffff8801b9162108 ffff8801b935a70c [ 465.641006] Call Trace: [ 465.643582] [] dump_stack+0xc1/0x128 [ 465.648940] [] handle_userfault.cold.18+0x3e/0x51 [ 465.655507] [] ? debug_check_no_locks_freed+0x210/0x210 [ 465.662506] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 465.668902] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 465.676079] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 465.682912] [] ? handle_mm_fault+0x1267/0x28e0 [ 465.689135] [] ? handle_mm_fault+0x220f/0x28e0 [ 465.695357] [] handle_mm_fault+0x221d/0x28e0 [ 465.701408] [] ? vm_insert_mixed+0x200/0x200 [ 465.707463] [] __do_page_fault+0x5af/0xd50 [ 465.713339] [] ? mm_fault_error+0x2c0/0x2c0 [ 465.719302] [] ? exit_robust_list+0x220/0x220 [ 465.725443] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 465.732107] [] do_page_fault+0x27/0x30 [ 465.737988] [] page_fault+0x28/0x30 [ 465.743258] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 465.750090] [] ? SyS_pselect6+0x1be/0x540 [ 465.755879] [] ? SyS_select+0x1e0/0x1e0 [ 465.761492] [] ? SyS_futex+0x206/0x310 [ 465.767020] [] ? do_futex+0x1770/0x1770 [ 465.772631] [] ? security_file_ioctl+0x8f/0xc0 [ 465.778850] [] ? do_syscall_64+0x48/0x490 [ 465.784637] [] ? SyS_select+0x1e0/0x1e0 [ 465.790251] [] do_syscall_64+0x1a6/0x490 [ 465.795955] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:01 executing program 2: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:01 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00'}) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:01 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:01 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x3}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:01 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:01 executing program 1: r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:01 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) recvfrom$inet(r1, &(0x7f0000000240)=""/74, 0x4a, 0x100, &(0x7f00000000c0)={0x2, 0x4e24, @multicast1=0xe0000001}, 0x10) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:01 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) perf_event_open(&(0x7f0000000580)={0x2, 0x70, 0x71}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = open$dir(&(0x7f00000001c0)='./file0\x00', 0x1fffe, 0x0) r4 = open$dir(&(0x7f00000002c0)='./file0\x00', 0x2, 0x0) write(r4, &(0x7f00000000c0)="d8", 0x1) fallocate(r3, 0x10, 0x0, 0x8000) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:01 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000000)='/dev/pktcdvd/control\x00', 0x20000, 0x0) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:02 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:02 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:02 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) r4 = ioctl$LOOP_CTL_GET_FREE(r0, 0x4c82) ioctl$LOOP_CTL_ADD(r2, 0x4c80, r4) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 466.944022] FAULT_FLAG_ALLOW_RETRY missing 30 [ 466.948608] CPU: 1 PID: 30014 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 466.956218] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 466.965565] ffff8801c695f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 466.973601] ffff8801b935aa80 ffff8801c695fa20 0000000000000000 ffff8801c695fa48 [ 466.981632] ffffffff81cb75eb 0000000000000dca ffff8801d30e6908 ffff8801b935ab8c [ 466.989671] Call Trace: [ 466.992250] [] dump_stack+0xc1/0x128 [ 466.997613] [] handle_userfault.cold.18+0x3e/0x51 [ 467.004101] [] ? debug_check_no_locks_freed+0x210/0x210 [ 467.011114] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 467.017533] [] ? preempt_schedule+0x25/0x30 [ 467.023517] [] ? ___preempt_schedule+0x16/0x18 [ 467.029742] [] ? handle_mm_fault+0x1267/0x28e0 [ 467.035969] [] ? handle_mm_fault+0x220f/0x28e0 [ 467.042190] [] handle_mm_fault+0x221d/0x28e0 [ 467.048239] [] ? vm_insert_mixed+0x200/0x200 [ 467.054469] [] __do_page_fault+0x5af/0xd50 [ 467.060343] [] ? mm_fault_error+0x2c0/0x2c0 [ 467.066307] [] ? exit_robust_list+0x220/0x220 [ 467.072445] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 467.079106] [] do_page_fault+0x27/0x30 [ 467.084631] [] page_fault+0x28/0x30 [ 467.089905] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 467.096739] [] ? SyS_pselect6+0x1be/0x540 [ 467.102528] [] ? SyS_select+0x1e0/0x1e0 [ 467.108148] [] ? SyS_futex+0x206/0x310 [ 467.113679] [] ? do_futex+0x1770/0x1770 [ 467.119296] [] ? security_file_ioctl+0x8f/0xc0 [ 467.125517] [] ? do_syscall_64+0x48/0x490 [ 467.131306] [] ? SyS_select+0x1e0/0x1e0 [ 467.136921] [] do_syscall_64+0x1a6/0x490 [ 467.142623] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:03 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) perf_event_open(&(0x7f0000000580)={0x2, 0x70, 0x71}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r3 = open$dir(&(0x7f00000001c0)='./file0\x00', 0x1fffe, 0x0) r4 = open$dir(&(0x7f00000002c0)='./file0\x00', 0x2, 0x0) write(r4, &(0x7f00000000c0)="d8", 0x1) fallocate(r3, 0x10, 0x0, 0x8000) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x900, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) ioctl$DRM_IOCTL_RES_CTX(r0, 0xc0106426, &(0x7f0000000240)={0x3, &(0x7f00000000c0)=[{}, {0x0}, {}]}) ioctl$DRM_IOCTL_NEW_CTX(r0, 0x40086425, &(0x7f0000000280)={r1, 0x1}) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$sock_cred(r2, 0x1, 0x11, &(0x7f00000002c0)={0x0}, &(0x7f00000003c0)=0xc) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x3}, r3, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x80800) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) r1 = memfd_create(&(0x7f00000000c0)="c7266b657972696e67626465762900", 0x1) ioctl$SNDRV_TIMER_IOCTL_SELECT(r1, 0x40345410, &(0x7f0000000100)={{0x2, 0x3, 0x4, 0x3, 0x5}}) r2 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000000)='/dev/sequencer2\x00', 0x840, 0x0) getsockopt$bt_l2cap_L2CAP_LM(r2, 0x6, 0x3, &(0x7f0000000040), &(0x7f0000000080)=0x4) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:03 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4, 0x0, 0x0, 0xfffffffffffffffc}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$inet6_mreq(r0, 0x29, 0x1c, &(0x7f0000000240)={@remote}, &(0x7f0000000280)=0x14) getsockname$packet(r1, &(0x7f00000004c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @local}, &(0x7f0000000500)=0x14) getsockopt$inet_IP_IPSEC_POLICY(r1, 0x0, 0x10, &(0x7f0000000540)={{{@in6=@remote, @in6=@mcast1, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@mcast1}, 0x0, @in6=@local}}, &(0x7f0000000640)=0xe8) r3 = open(&(0x7f0000448000)='./file0\x00', 0x80040, 0x0) read(r3, &(0x7f0000000040), 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={"736974210000000000000000008000", r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000002c0)) 2018/05/02 09:53:03 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) ioctl$TIOCGWINSZ(r0, 0x5413, &(0x7f00000000c0)) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:03 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) fstatfs(r2, &(0x7f0000000240)=""/69) r4 = dup3(r2, r1, 0x80000) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) setsockopt$inet_sctp_SCTP_HMAC_IDENT(r4, 0x84, 0x16, &(0x7f00000000c0)={0x7, [0x6, 0x13f8, 0xc7d, 0x0, 0x5, 0x2, 0x47db8c59]}, 0x12) 2018/05/02 09:53:03 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 468.367606] FAULT_FLAG_ALLOW_RETRY missing 30 [ 468.372274] CPU: 0 PID: 30052 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 468.379888] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 468.389235] ffff8801b9607850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 468.397291] ffff8801d7764c00 ffff8801b9607a20 0000000000000000 ffff8801b9607a48 [ 468.405345] ffffffff81cb75eb 0000000000000dca ffff8801d48f0908 ffff8801d7764d0c [ 468.413379] Call Trace: [ 468.415959] [] dump_stack+0xc1/0x128 [ 468.421313] [] handle_userfault.cold.18+0x3e/0x51 [ 468.427797] [] ? debug_check_no_locks_freed+0x210/0x210 [ 468.434797] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 468.441189] [] ? preempt_schedule+0x25/0x30 [ 468.447150] [] ? ___preempt_schedule+0x16/0x18 [ 468.453371] [] ? handle_mm_fault+0x1267/0x28e0 [ 468.459593] [] ? handle_mm_fault+0x220f/0x28e0 [ 468.465820] [] handle_mm_fault+0x221d/0x28e0 [ 468.471877] [] ? vm_insert_mixed+0x200/0x200 [ 468.477928] [] __do_page_fault+0x5af/0xd50 [ 468.483801] [] ? mm_fault_error+0x2c0/0x2c0 [ 468.489762] [] ? exit_robust_list+0x220/0x220 [ 468.495900] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 468.502556] [] do_page_fault+0x27/0x30 [ 468.508083] [] page_fault+0x28/0x30 [ 468.513352] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 468.520183] [] ? SyS_pselect6+0x1be/0x540 [ 468.525969] [] ? SyS_select+0x1e0/0x1e0 [ 468.531583] [] ? SyS_futex+0x206/0x310 [ 468.537111] [] ? do_futex+0x1770/0x1770 [ 468.542724] [] ? security_file_ioctl+0x8f/0xc0 [ 468.548943] [] ? do_syscall_64+0x48/0x490 [ 468.554734] [] ? SyS_select+0x1e0/0x1e0 [ 468.560349] [] do_syscall_64+0x1a6/0x490 [ 468.566051] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:04 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:04 executing program 2: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:04 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:04 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:04 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:04 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) lgetxattr(&(0x7f00000000c0)='./file0\x00', &(0x7f0000000240)=@known='system.posix_acl_access\x00', &(0x7f0000000280)=""/57, 0x39) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:04 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:04 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) socketpair$inet_icmp_raw(0x2, 0x3, 0x1, &(0x7f0000000200)={0xffffffffffffffff}) ioctl$sock_inet_SIOCGIFBRDADDR(r1, 0x8919, &(0x7f0000000240)={'bond0\x00', {0x2, 0x4e20, @local={0xac, 0x14, 0x14, 0xaa}}}) clock_gettime(0x0, &(0x7f00000000c0)={0x0, 0x0}) pselect6(0x40, &(0x7f0000000000)={0xfff, 0x9, 0x80000001, 0x894, 0x5, 0x100000000, 0xffffffffffff8001, 0x9}, &(0x7f0000000040)={0x20, 0x839, 0x7ff, 0x100000001, 0x7f, 0x8954, 0x39c, 0xc0000}, &(0x7f0000000080)={0x3, 0xf0d, 0x1000, 0x6, 0xb0b, 0x4, 0xfffffffffffffffb, 0x4}, &(0x7f0000000100)={r2, r3+30000000}, &(0x7f0000000180)={&(0x7f0000000140)={0x5}, 0x8}) 2018/05/02 09:53:04 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:04 executing program 2: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:05 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:05 executing program 4: r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 469.897140] FAULT_FLAG_ALLOW_RETRY missing 30 [ 469.901793] CPU: 0 PID: 30102 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 469.909405] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 469.918753] ffff8801d9797850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 469.926786] ffff8801d7764a80 ffff8801d9797a20 0000000000000000 ffff8801d9797a48 [ 469.934824] ffffffff81cb75eb 0000000000000dca ffff88019cc2e908 ffff8801d7764b8c [ 469.942857] Call Trace: [ 469.945433] [] dump_stack+0xc1/0x128 [ 469.950789] [] handle_userfault.cold.18+0x3e/0x51 [ 469.957281] [] ? debug_check_no_locks_freed+0x210/0x210 [ 469.964285] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 469.970686] [] ? preempt_schedule+0x25/0x30 [ 469.976648] [] ? ___preempt_schedule+0x16/0x18 [ 469.982870] [] ? handle_mm_fault+0x1267/0x28e0 [ 469.989098] [] ? handle_mm_fault+0x220f/0x28e0 [ 469.995320] [] handle_mm_fault+0x221d/0x28e0 [ 470.001370] [] ? vm_insert_mixed+0x200/0x200 [ 470.007424] [] __do_page_fault+0x5af/0xd50 [ 470.013296] [] ? mm_fault_error+0x2c0/0x2c0 [ 470.019255] [] ? exit_robust_list+0x220/0x220 [ 470.025391] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 470.032051] [] do_page_fault+0x27/0x30 [ 470.037581] [] page_fault+0x28/0x30 [ 470.042850] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 470.049684] [] ? SyS_pselect6+0x1be/0x540 [ 470.055477] [] ? SyS_select+0x1e0/0x1e0 [ 470.061096] [] ? SyS_futex+0x206/0x310 [ 470.066625] [] ? do_futex+0x1770/0x1770 [ 470.072239] [] ? security_file_ioctl+0x8f/0xc0 [ 470.078464] [] ? do_syscall_64+0x48/0x490 [ 470.084254] [] ? SyS_select+0x1e0/0x1e0 [ 470.089869] [] do_syscall_64+0x1a6/0x490 [ 470.095575] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:05 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:06 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:06 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:06 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:06 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$DRM_IOCTL_GEM_OPEN(r0, 0xc010640b, &(0x7f0000000340)={0x0, 0x0, 0x8}) sendmmsg$nfc_llcp(r1, &(0x7f00000021c0)=[{&(0x7f0000000440)={0x27, 0x1, 0x2, 0x1, 0x6, 0x1, "89bb46a9a504b49779ea821ef8a4c99aceac3dddb3fb01b6925c9bed8b5b9d955906eccc17b1e5d3ce4a9364a2e1267a3cc4d92999cc6d39374c65c8e931e7", 0x11}, 0x60, &(0x7f00000007c0)=[{&(0x7f00000004c0)="1b0a12bb70ee8c4a008ce54e46314634cb47739dbc7a29d7d727226e1eeb8b87758d0a2407c1c480e9163e63", 0x2c}, {&(0x7f0000000500)="81943b4e104d601cec42d8831f081d37e8d527e5c0e77a921599d41939a4774767e4dfd93a0118987a0fc2413f3b69e5ac8f97d6b6927047b743aa323a90fafa435ce6281fe506fbb2ede40c928a33e8f4889d0d6a6032338a7feec377bc45f0f31a6411387d5c6838cc9843c8f5d34d289bc6f442ca43997f284d38a2f59755a91970cf0d6e001ca2afd1647b272f93cc8289a97a1cab867d3d6300bd886f11568881919afa9f01602b2d476016f1a29af982", 0xb3}, {&(0x7f00000005c0)="352cc900efaa3e98449ab2df3b8ea74b24252870bd808ca5bcdeb4cc8735e3a7f8486de972cf818a05fe97aa90efed5f96ef851a9ac6ad171ed47be872962489c71cce68d6fb025e8758cb90b5252f8f63f34d5d4380bd4756847fa9d5679b03fccdf3e8ee9dfcdf799e330e0b41be7ce323702642fb999889682f9bb84bd3e22f01c847b5ff", 0x86}, {&(0x7f0000000680)="c3f7137a9f62d60df2517fbded81c73948483d1aae42679cdd6b50f7c426", 0x1e}, {&(0x7f00000006c0)="14e0438388aec3c012638c78133de77a7bbdd1a4aaf5e6e0339725e83528a6dbaf8c37f212b00df74f9fb865e0519baaabbeccb368f0b962628be4c6a86d3d604f6ab9f619886daae2c2a34e8cd74891637aeb927870c9decf485c2e4a2644079784123a4b89bc616bd66e0ae211fbc961bd8cc4db05ab8c6d8e7e684b72e8e9e6ea2a4fb319ce3530b48f168f76831804ef81b5a235b8872d432d63ce96c763a97b706874cd33b9e3cd089a8088e1d62dd2eb3032964ba9cb28cc77f70feef67ea3e94792064e02b0fee3b24296086975041e602a15547aedd1", 0xda}], 0x5, &(0x7f0000000840)={0x80, 0x11e, 0x20, "9ea92ba01fdc224c3dae829bef2d6cfb15b41500a603bf2ac2fbc9d155fd53b5fdf95793cf474692f74bc918ab6d6eab3aa579254c2d778bf2c224b5838430e8f8cb1134aa7668e2449439c68ae8679f679656fb10128b2ca5a6022899900f9f685e3ed2abb5ffc894385e429326f3cd"}, 0x80}, {&(0x7f00000008c0)={0x27, 0x0, 0x0, 0x7, 0x101, 0x7fff, "97581bb3f061b667a635aa121a8d89302d3aafed10197ab6add85c94eae0b631cc798f340b881646093634cfb3272fa4599016f7de554b1669ea005369e5ac"}, 0x60, &(0x7f0000000b00)=[{&(0x7f0000000940)="27bedae270cef4998af883b5aad43370717c76ad474a1de85582c3200d680daeae4f1775ea6a72ec4a81d4e6ffbd5aa422fa8a8a868c6d12029c213baaa4083f38c01ebdcfee63125880644b16af41a49e39f1005082f0e24530cc27bf302b5ad45a6aea52ceabccbc20e6c601f4215edd0156665feac113c73488942bda580fd82860f65af0e754447dd74bd474e3c0b16b002ded0ab85602f9358f13a8d7bce6f056e60631688e606124cacac2a8f718", 0xb1}, {&(0x7f0000000a00)="6addde5f1fb6516e699ec611d7bf5f0e381b255d6a36e8f3c65faf2d69d097ee0d75a67150d99a78103d7ad270cf36450776ac8405bea4c220978674a8be7a00129efb835def7fd51d8e62688662f3a762bf4053b7b00a3f8882e3fda48d2d6a674ffe4c5de4fce16d9b94ff82238a4aabdefbd93377cb06dc24fde9c251e3079fa22e97d5bbe049388f7b2dc319f02e436d549408928a7df8697c903872cf0bc788f8bbdb09676e5bc9ba998937a588f3b14e65a324dc39359dc44f8b85eaaee4d7237e67f38b01cea5bda486c4ddc1c60409156133a356d4d1da5cf4fe", 0xde}], 0x2}, {&(0x7f0000000b40)={0x27, 0x0, 0x2, 0x0, 0x903c, 0xdf2, "db8dd8b0bd8de65e7b9d2cc663a9ef94c92cb950ae33ffd761a8c6aea0b27c597a4874206b05b1550360a68e75d3e543fb8f9a40a575d91503f62913e48df9", 0x1b}, 0x60, &(0x7f00000010c0)=[{&(0x7f0000000bc0)="24474dd57cab247d6e10f773101688a3bf2e07c396ea0fcbbd30ea384ba4d9374085f4d92f7a9894eaf186164bad5a801f358c952da6ad06ff11653a43f2f986b2bbc6d2d2f066d1d7", 0x49}, {&(0x7f0000000c40)="db9297ae1944972919228d4d51aba369492eb7f74cb17c967d9146d38d1c1930fd2a0a05ad53cf3ece37ba26e7fc479eaa73fdda9c5f994e4a10c9e8c771008c0061c6804f674853721b18fe55df0179da1995b41dc3644a6f215e685f9353b14f74dcee08af0e381bc8a87cf271fff7b3ba464bd13fb1d0cc7766aec253d9a5deecc460d1038cb124bdb6c952", 0x8d}, {&(0x7f0000000d00)="2a0742d800c29e209f8806c1d6519448944fc662c1038e93982d2ae73c301faee87c31c0065adc30454d1b590868d9be89a0e10d767eb30125acf532fd92e60cd6094ad07596dbda54642dccd303911de017a21b3bc844b52b6629091510a5286b59861be3a08795e2109aeb4b6f269698d9e3026df99951b6492fc16f3cef668af562f58a557c03d87dd1d2978cda2e8767edbbe561b4017ae3db7642b4fbb8ae2f7f4e95505931cb1802ae862cc42144876cc5e1e23c02c7e620cba932ff007cb9c47ab7ae93d49ce77aada27b4d487e0a128b64c0e54c5d064a2bc5d7ba5d0d4ad8ac82", 0xe5}, {&(0x7f0000000e00)="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", 0xfc}, {&(0x7f0000000f00)="153c7cc9ef4c1db8e2f1ea5a3855de5ad5463a2f9458e5d581fcc6b9374419dc90940561e5171c3363b01dfaf810e600096aeb7ab0df84453a21a06dd91caf5ea1fa69195103d8619c6605f28daff2e5c08ef1d443a4f543a37cef59c8a1b96b54162dca545789b93bbabe7538345f2ead2ff73b68cc0a11209c0d9b82aee16d175de404949294faa990b84ceaf52ea90a76efe7b3f8e755b75d39c7cf0575e4ee3ef9b83e34c046d3fdbfbf629acb02ff9366931c65f2e725eb23f0246b81807424d8e8f53b3be42f729edb09ee478f38da120f04b37384", 0xd8}, {&(0x7f0000001000)="11db5515c17a564a68f761e30a1fdb1cd603408be760e4e5554c045b46c38ce7e5823e04dac811ff1e39bf910c54d97ca61e7f68a76b8c17b660a5668fd2b39b9f1ad986ea2fb30611523142de1199a3414e26fc25", 0x55}, {&(0x7f0000001080)="935ceb81b1c14f32632cd6be73c79593dd06d3f45e82ff92", 0x18}], 0x7, &(0x7f0000001140)={0x68, 0x1, 0x3, "6f637cc9b01cfa7450cb3a3169e121ec8f943029ab6cb23f369807d2b3216bec7cfebf49394a345107dae9d682c7b6c4bec159272a38b35c9496c38c778cc18d8a74969ba74e4ba98b51c706ae62c3f0ea61042a644c5e"}, 0x68, 0xc0}, {&(0x7f00000011c0)={0x27, 0x1, 0x1, 0x2, 0x3, 0xcf32, "f0b1a9a59d5083082d963049af6b2ae5f36422ba294b23d4faf3564bdf27cf2ec26c43af3fde4956f99d6357c4d678a1ca0c8842599a251073c1808f289d24", 0x2e}, 0x60, &(0x7f0000001900)=[{&(0x7f0000001240)="7929465ccc5135f260be1871bc77356999f8b4559fb599cc0a11e1f7644fc3ffcac88c48ba9a1b68f6c2084e43a9c0403b263008c3db50ccc448bb5ed01f49154c6c8a3d96abbfb747bb8135aba10654ada5a99406af1b5080e77905aba7336b777bb1e3634727ccd1941bf2acea672f4a17c1eadfecb330759d469e614bd92135b146212e71f5dbde8d4df7380e543e373b44acc73c5498348f5648cde03cb83336eed46ef26eb76e411ef0575c1ee082631eeef39e3f51a747dfede546d855aea8b23dfb1baaf4463b3a97fa14c07a8025775875a0d4db181ba27f03800ec2c35bc0", 0xe3}, {&(0x7f0000001340)="0d287bab786f86b14615b9fffe23c7d50c075d28ed34", 0x16}, {&(0x7f0000001380)="103463e5eb10a91248257cbbc8dc845ed4b07aec6871d595a76445f713329c22128911bfafb92eabe91d902dee1b01d28126c64055afec2c9fef676c5109ccdb2b8e437e4001f919c2fa898b555410374dc56795b413f5caae621f5cad4a53e94641212e3390d9470cc16e82c3c58a9f4ee9819173a1adfbf7a4134e83556a2510163eedbedf567dbdf28625d4204631e5ea84a19b31b6651cc9643e5b56fd133283a409716dad8ee828e32c64b801b4802073503a09a1f6dadeeab62e8a57", 0xbf}, {&(0x7f0000001440)="ae25bb6c39a0b5a962fe13006e0a2599a26cec713529cabca83469dcd7e1e645be4ccb472b25bb3991bf3c1d4506cc62eba3f72c769c050328120fe19411e61c914577bf43910fec4b833204b2de0b793c2d34b5cecf6f02face225919608c8c6be0c39bd39bba880b86ff215f55711d06df5c9ed7895d6d5660406ccc6457cc1e891e042c288ef7ab77a9", 0x8b}, {&(0x7f0000001500)="2fdd4eec0ed2a6dd2546ae89882b2c85b622d6313f91db11e04700a1c3de751e07ca1eb0db19e2892f8ee1d9cb7f64bb2ada624eb3491ebc5b47165f9ad656d19814e55052651ec6a231cd89b7cfe132f1657bfa37f12bd9c86225d41020c090019f1a87304ab305735daa39a9caa66a63a9e8ec97ee021e6ce91da7b07ed1203741a2baf83d7c56198c69dad89b599fd055ffbad81d3393639bbf9887c2b6d30ff03a84f5880ff4f2620fd2c54e926513e6081a1fd9e501e48f74ba97542dd1eb6d04fc14a896ad362f4f3df3ca11f19824e3ceead5e7f3caea19f7400a5df013744d06eb053af4493c8f", 0xeb}, {&(0x7f0000001600)="a1a1a062d680dfca3b1d62ed9685e801d8aff27eab6d851e8841cb02349555d365de06aa", 0x24}, {&(0x7f0000001640)="b1d2fae34fef6e6b2b445108b0e38bd250", 0x11}, {&(0x7f0000001680)="03b1a787ab4598d71012411954306f8bd3113418ab7206ba9a658eab00288e09f80be8fa367eccece023acc4a329ce926617e0652c57150d24f16a3e2be28feb0520a376c44530bd6a137a48e13bb564db8c4d801f18bc6d90310ab192697e0b8faf1a648d31f533d43c464858e0a8b61dd2d4d67fefffacbca0d0b540845b734fe9f9806424d7e318b3e74173df8d67f5bd82db8af2ff2a06941a93067b6b59e287f7bf6d5f71", 0xa7}, {&(0x7f0000001740)="840c771b2ab780e23663df924e51f3391b1731c750bb5c0b11bd86934e601de13ed659339ad1333160af83cd4ea041e7a76cc4c223d6f6b1ba68f1bf98f7e36dc0d99a3cb2fddecbd2dbee801987d718bd11247c3ee687c9b2bef2693a4d9d6a683d70f6b213b97a9e6b30933244ba3666845e20348c0e625c6ea26f0cb27386ffbd5aca8a4692352199e0a5ae2893d70f00fbb0b2fb75708c5d8eeeb4834192db13406f6a746bfde568a4178823a6dc71de98f9bc5598ed0a1b2f5aeb972128ba0c6c0046b39cc7ebf731c427074c056d512c98ab46c67dc003a25f36bfe0", 0xdf}, {&(0x7f0000001840)="054bb07775874d174b1e54744497741a5301c9a42a406d691b2d1534bda695693e027f9e696d784f7015661ede43e616c6af31146733d7fbc3ccb96beaab930a7117eca06deef06eac7d1f1a1116f0f12f11dd2822e12724c2bf55939c32a6fa8e75dfe1fcbcf89649ddab56ec25b5582edd96505b938b01022b2c73e499c9b0e2f5f26714cd7a939cd8eaa944aa8e7edd8a76e1b74daec3dbfa94b7d4e65b993c043eea70aa7150f3f48a70e5", 0xad}], 0xa, 0x0, 0x0, 0x4000}, {&(0x7f00000019c0)={0x27, 0x1, 0x1, 0x6, 0xffff, 0x7f, "8d11771ca56c13e9b05f34b91d8b32c8684828a92223c7a160a53287b6660c958e4faba8b0e52eaf9113e76fb131f555673eacde5d2530fa7543e3d24aeb30", 0x2c}, 0x60, &(0x7f0000001b00)=[{&(0x7f0000001a40)="aaee63343d7e0805cdbaea3a45d1a14dd79f1bd06bfda9f91d92b3fe465b51b27f2d5e1f90dacb8505abd242bcb918a64b63bfb29b4814bdd8eaef11a1f6fe29cad832a3f16a90189faaff4db155bea2c7c18e95f14a3bde43ef56b63c1d1cccaac2cf4a074ed13dcaefe195797d671db5e0e1a945aec41fdf381a30274ac626e965d710254815e8ae5d46a84834f8bb8ec85efe2715e12264d941b28c825452233f9fe7dcdec7dd5a3a26d648bd", 0xae}], 0x1, &(0x7f0000001b40)={0x78, 0x108, 0x3f, "0307d170f42ee65c98a4478c1688d500462e6a969a3d7bab665577aa8418c492d354d42b3144113097db2185cc41908bdcd824ebf770ace2a851ddae393cec13e57db6d6bee58a5b9ba3ab61601095a598872b0d2088865cf19217f510e8e94425ddf3"}, 0x78}, {&(0x7f0000001bc0)={0x27, 0x1, 0x2, 0x7, 0x5, 0x0, "af702a10cf61d523084385e68d72441dd9fc471babfd81bad715816efb540c05c30d335bb8b32eb404bcd41a6003e27071015f6f81a8398dbb9b006328fa28", 0x2}, 0x60, &(0x7f0000001c80)=[{&(0x7f0000001c40)="4b3861b7171977b539472a3c0c701c9c3ce5679fb61c3d3ee023d1d9b9adb7ed0979a709ab511c3637377253df5d6553492c571adba6a09934", 0x39}], 0x1, &(0x7f0000001cc0)={0x100, 0x114, 0x2, "d2b95c3e4ff2f54ff28369b71a15c630d641b996d6ffe8fb770c4e03b9b63a30dc6ef21aaa637fbd2271c604efdebe6e468159645530a20d3405a647eb09a84c24cb1be9ac1bc706cd247f55f8bbe42aacba4fc539bac11833af8ba5cb0f7a806ef0a1aa66ca4221ca4373093a35170851c7af5f09837fa66a3948a7bd5f6b413f82deb08e8b775263336cc8b7953760a852167a4f2078b86bf51de723bbd2f428d62f0bdd54d646e1b34b1826cddf30419001db2af487540ccf77541909745ee8d992165e70759f7d9c572f49622c8f4abc6820ca5fc9e70cbdcef1fb872e6044b22f881c0215c90f63f30a2545"}, 0x100, 0x20000000}, {&(0x7f0000001dc0)={0x27, 0x1, 0x2, 0x4, 0x2c3, 0x1, "dea55338a053969bcc9db0d6a38e8fd569ce77f963c13d2999d1570cda7acfc34bd0e187beb9e4f9b984561ba3691513d2ec6ecbc1255f9709ae185bfdd732", 0x36}, 0x60, &(0x7f00000020c0)=[{&(0x7f0000001e40)="8f5522a65721a43ce43fd9dcc583e079f741be929f877dcbec9784b2551f4c2e262c87b5336f003cb7bcbb937e1fc55d931d51cc9a1d825befeb87e708ccf3f3c4b5c0e70543a992453061a2b01afadaedc3b60044ed4ea64e39eb0a5ad998bf7dedb18a385bd87c733a90a23e49f3ee105cc50e5803a3e5bf4599a8c1223ebdbba74a69460383cbc7e183bf213f3ded4f94342452e58a41d030c9cdcb380e6a2828c23d7bfb9406b1afc9fd5bf342f9ac7233f28b9a99e6ae13cb735ca9bbe8", 0xc0}, {&(0x7f0000001f00)="b63c7b1c26cf9045117032d7b1054f8cc0cccdb68da051b210792a33127961b72b9706fb824234671b1f3843e5db70f6490aae47374df3d4f0829aa55161784ad0908fc0b3b1268824d3458485c287c02c6360eef8a424e0b6e62bc93d96b3271e2d84b931e04baabaf5785a0f2bec9473090f98c430dec5f0c139c50acf05df421ce884c99d", 0x86}, {&(0x7f0000001fc0)="b8ac675ec5aed8ef617a36ca7d63545d64112d55e60a546d32a6a1ee5419e86f032e7e6313ced7853e783998645bfc1aa5caebe506525a529c47ec08912e5c11a9cd1489d9d3f41b4f9c80c153a4447f4d78dc0962f9c043bd0a535dc3de1716127d18e35edb4a5969533e5725898d06bb9975b00c4c6d0a5a0c85a1f8095c4e9168cb8cf21d141bd072a49be686987852cf3f24d23933b0d072fb56d28fb51ac1746c345858ca2c31c7bb8a04f87e76280dfe08f430e76cb499f0f740bc8db1f84e05217ac0fe3d10b26f3413ec527a1ebf9fe3345b66164f02cd2f65f107e61de080fc2049702ef7e178559bb99e058eb3aefdb12a", 0xf6}], 0x3, &(0x7f0000002100)={0x98, 0x103, 0x3f, "cae8de66cddd12c480a7b502cf73d28616141f5403fa96b99cdb0762a32e3a2a940dcedd4b12ffd12e1eb940b16c21594dca913afa5e3b72e839d41c17b8ad24e9b1439970ab1f36646e64811ae4f9b19a087d9e88b50354e0295499d5a522fd93d6e34fbd764301f8a203111803216d56b1a3dbc8fce3a2ae17d499c31ea9fae2689e1da93318b3"}, 0x98}], 0x7, 0x5) ioctl$DRM_IOCTL_PRIME_FD_TO_HANDLE(r0, 0xc00c642e, &(0x7f00000003c0)={0x0, 0x80000, r0}) ioctl$DRM_IOCTL_GEM_OPEN(r0, 0xc010640b, &(0x7f0000000400)={r2, r3, 0x1f}) read$eventfd(r0, &(0x7f00000000c0), 0x8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) ioctl$SG_GET_LOW_DMA(r0, 0x227a, &(0x7f0000002380)) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$DRM_IOCTL_AGP_INFO(r0, 0x80386433, &(0x7f0000000240)=""/137) 2018/05/02 09:53:06 executing program 4: r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:06 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) r1 = openat$keychord(0xffffffffffffff9c, &(0x7f0000000000)='/dev/keychord\x00', 0x0, 0x0) r2 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000080)='IPVS\x00') sendmsg$IPVS_CMD_SET_DEST(r1, &(0x7f0000000240)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x20011008}, 0xc, &(0x7f0000000200)={&(0x7f00000000c0)={0xd4, r2, 0x0, 0x70bd26, 0x25dfdbfe, {0x6}, [@IPVS_CMD_ATTR_SERVICE={0x48, 0x1, [@IPVS_SVC_ATTR_SCHED_NAME={0xc, 0x6, 'lblc\x00'}, @IPVS_SVC_ATTR_ADDR={0x14, 0x3, @ipv4=@loopback=0x7f000001}, @IPVS_SVC_ATTR_SCHED_NAME={0x8, 0x6, 'sed\x00'}, @IPVS_SVC_ATTR_FWMARK={0x8, 0x5, 0x2}, @IPVS_SVC_ATTR_FLAGS={0xc, 0x7, {0x2, 0x8}}, @IPVS_SVC_ATTR_SCHED_NAME={0x8, 0x6, 'sh\x00'}]}, @IPVS_CMD_ATTR_DEST={0x24, 0x2, [@IPVS_DEST_ATTR_WEIGHT={0x8, 0x4, 0x206b}, @IPVS_DEST_ATTR_INACT_CONNS={0x8, 0x8, 0x1}, @IPVS_DEST_ATTR_ADDR_FAMILY={0x8, 0xb, 0x2}, @IPVS_DEST_ATTR_ADDR_FAMILY={0x8, 0xb, 0xa}]}, @IPVS_CMD_ATTR_DAEMON={0x44, 0x3, [@IPVS_DAEMON_ATTR_STATE={0x8, 0x1}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @mcast2={0xff, 0x2, [], 0x1}}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x1}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x1}]}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0xff}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x10000}]}, 0xd4}, 0x1, 0x0, 0x0, 0x20000000}, 0x8000) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) openat$keychord(0xffffffffffffff9c, &(0x7f0000000300)='/dev/keychord\x00', 0x400200, 0x0) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:06 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$inet_sctp6_SCTP_HMAC_IDENT(r1, 0x84, 0x16, &(0x7f0000000240)=ANY=[@ANYBLOB="050000007f3ed451e1436a767625bde065001ccf406800000000"], 0xe) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:07 executing program 2: r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 471.675001] FAULT_FLAG_ALLOW_RETRY missing 30 [ 471.679700] CPU: 0 PID: 30138 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 471.687320] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 471.696674] ffff8801874b7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 471.704731] ffff8801d7765380 ffff8801874b7a20 0000000000000000 ffff8801874b7a48 [ 471.712857] ffffffff81cb75eb 0000000000000dca ffff8801c16fd108 ffff8801d776548c [ 471.720988] Call Trace: [ 471.723565] [] dump_stack+0xc1/0x128 [ 471.728924] [] handle_userfault.cold.18+0x3e/0x51 [ 471.735417] [] ? debug_check_no_locks_freed+0x210/0x210 [ 471.742430] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 471.748837] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 471.756025] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 471.762864] [] ? handle_mm_fault+0x1267/0x28e0 [ 471.769112] [] ? handle_mm_fault+0x220f/0x28e0 [ 471.775345] [] handle_mm_fault+0x221d/0x28e0 [ 471.781402] [] ? vm_insert_mixed+0x200/0x200 [ 471.787461] [] __do_page_fault+0x5af/0xd50 [ 471.793451] [] ? mm_fault_error+0x2c0/0x2c0 [ 471.799421] [] ? exit_robust_list+0x220/0x220 [ 471.805564] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 471.812223] [] do_page_fault+0x27/0x30 [ 471.817755] [] page_fault+0x28/0x30 [ 471.823050] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 471.829883] [] ? SyS_pselect6+0x1be/0x540 [ 471.835678] [] ? SyS_select+0x1e0/0x1e0 [ 471.841308] [] ? SyS_futex+0x206/0x310 [ 471.846840] [] ? do_futex+0x1770/0x1770 [ 471.852457] [] ? security_file_ioctl+0x8f/0xc0 [ 471.858678] [] ? do_syscall_64+0x48/0x490 [ 471.864471] [] ? SyS_select+0x1e0/0x1e0 [ 471.870262] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:07 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 471.875965] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:08 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:08 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) r1 = openat$full(0xffffffffffffff9c, &(0x7f0000000000)='/dev/full\x00', 0x40100, 0x0) epoll_ctl$EPOLL_CTL_ADD(r1, 0x1, r0, &(0x7f0000000040)={0x80000010}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:08 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:08 executing program 4: r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:08 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:08 executing program 2: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = open(&(0x7f0000000000)='./file0\x00', 0x0, 0x40) getsockopt$inet_sctp6_SCTP_PEER_ADDR_PARAMS(0xffffffffffffffff, 0x84, 0x9, &(0x7f0000000040)={0x0, @in={{0x2, 0x4e21, @loopback=0x7f000001}}, 0x6, 0xff, 0x3, 0xffffffffffffffff, 0x4}, &(0x7f0000000100)=0x98) setsockopt$inet_sctp6_SCTP_RECONFIG_SUPPORTED(r0, 0x84, 0x75, &(0x7f0000000140)={r1, 0x3}, 0x8) r2 = userfaultfd(0x7fffb) ioctl$UFFDIO_API(r2, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r2, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:08 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) ioctl$DRM_IOCTL_AGP_RELEASE(r0, 0x6431) r1 = socket(0x200000000000011, 0x4000000000080002, 0x3f) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$inet_sctp_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f00000000c0)={0x0}, &(0x7f0000000240)=0x8) getsockopt$inet_sctp6_SCTP_GET_PEER_ADDRS(r1, 0x84, 0x6c, &(0x7f00000003c0)={r3, 0x1000, "ebb60679f11bdcad5eeedf76e7e5b597b4828bed2d7964aebb9e4762410e904aaf425fbecfcb87381fe96b192e504c124ebb79a320deaa719f22f0b330c36cd4474396ef10711e68f172d6009573a8492aa928ee1df7ccd891c7f567f43b8791858248718934c3bd0b37778ddcf69908bc9017989288c60dbe127c4aa72b365f04669c2a1ac13994698cf3889ee736a9b5766c8d5058f67fe6a5314d699518d7fdf569b756d582be71e534103d8c1b653fb58f5ff0d031663464e137f24813f5f5432ce65babd25c9a1fd85331d5efaca78033a13ae6a522008b980ba4c6a40952ad3ca449e0e816cce6faff96c9dd1361a1fc3a65c0ea690f870e0d2115987b9fae374b29fa6cb54a590166f9dcf9400466db71f74e84608f2e7a7108bbf8e8d2404582053b5d597724cb14ff25fac4bf25104052878770a8693cf65ca0a29be285ae9e6151a4741fdbdbb28ea6b029f25eff21da325de64e40793f29ec81156a2f3b84293485f5d38359bf3f2a3f379dc6eb6257c772aececd4a59026591a0041e10db22e71a17f5e1d0a16671575fdc803836a9b8deb8a63962f984e090e81c53276b257104729f69f6ea8d7f75acba956075aa9448901abf88a9ca2a914e415cce647d72381d3c5facab151f26ad3971ced2cf7b1c12e82740eae5d2fa77b6a387c42439b9bfd892ae165cbf90b2f67f748aa0fdddd89a6cfbe88416bc9efff7eb695ea9beb18e081d9927ea57091bcd26561b10c9983d97015905a7e89fc3b8298aae9fc7a07ecd03cc524c266f5ff7fe26e77775d50e8966dbe7e863094191a04e6c1465a26d1d89905335fb0758f01a45ed45312018462e2b1685f29cdff9d7f13db7dfbbd52db66025df843698f61d68fd8ee340941ae59bced074ee79fd85bb2ddf00919839e779aa4f78df5b7ec231bacd58ba3ae6950065d3469ea3736f49a7c820d02b7c3af76d2c2abb9244414462f249953a94d1eb251411fa2e0206eaa96e5253c7914c649f63334ddf59f561ec437ff730b9aa53d64b7e2b13d59be9940910869fdcafdfd21c7cb0ed2230d71c1ab9a06509e018ac74978ea76037cb5f23bc4fbecf7c3875a07bfc548e57dc399010f316703f0fe23be04c4d48b38101ed6d64b815eb332ff5539020f759637053c2c82b16d9a793f755791d9b9b4806cf8d41bc0988fda5c5fcc5ab3ecc050f577e75297c2baaa6ebb09bb6903b443f5afa7c791aad27080fc6f702bb6acf3fc1186fea509fbf1c1ec85677dd7823a45be85a645f2ee5c1c89434148a3dd842b54fa9fad42f44194dea5a640a1c23825f417796159923a715fc38fca2944a7b05af6f10a5bc64e4ef4295eacdc96b79e7e71c1994541115644cafc11a645eb11c1c202112eb4fca3103376bef351748075b74d9005b10c52eab5aab4c0b45a172c2b6c001d634c063059803148d5549218d58095cf46d982221512308d5e15fa8b3d60e4679476307eebd5923f2d44e72ae4c52c21b542e08e819be1c1b83fc1eff558bf900d105296c0933a8bb7e9d2a139a5bd92d356723a94cf891253b45e4a828aeb7f20d136263fbbc96a72bafce080d7d46165295fdf5cc69dce6575509f338137a73b2cef0af89af2b45196f0661963ded1cf10b428d274d7504609a1930f7e4ca3b16ce24d2d6c6b5d8a9eca757bdc7846483791554424b7f500a69b47f5abec441afa999b1dc31d493d2025bc0849cc706e1436925da8b0836c6fa5c277b37ff2f22e18a53c5ac47d5923db2adb559098b959e43115fb52e20efe4a1c2965a6e01c0e40ccc4ecd1b95b30dc243ee33faf94461ea1e97dd4559f04792b6c8ecdb471a82a91c50532af27f4fb1fc7b675bab19aa9655ce174f84df18cd69de06fc16f2a0ac34fcee5905af8d0da49e323bd9d3ee81d95a2c647fd89956ca79a43bf2daaafeb251ac2f5c855f013366f72bf068ad8f5eb88a1373e1bbbfc11f7dbd55f88e754a42141d5de744c26eab4dffada3a82180d081098fb66d31cf8cad1694afe961bbaac2e9bd0a30275bed006cc8e0dbcae97d1493bbe8006b1c813af22f0b6e2ab10bd286c38f646430f9746bec49bf6f90b4979ca3d3931acaaad43c8622ff0bbf9cb8042bdb21e2b78cdb66e4f0ea76be684fe91f18488d5ba889884da5e3889e7569d251a34f261959abf392a8d6e045c8f1626611b8bd315393f05edd33a37f0965a6b0d3d72fafd05c41ec5c7fce59dd6ab889a49b6cd21d8d52aa764aadcec1be4c67cde7734142df620ddc204b07df49fa9ea6214fc464a0086f9936f41add6fbabac9fa26aed4d598a88afccb4fd65a8111bc2d12d841ac7172536f9c4db8db7de7c153690c13e299118401768f085f2fa15a054417faa54ed0b3cc142bb4783d872de181cb2a66da4cfcd392aeb43ce82403efd8500aa4f279db423fc6a614bcbe6bb609789ac75045c40964f61be7b9de1898579c4374e81eba3a6ef940e0ddb512d9f5b10798f12d92658d320d12bc64c5f452d99c57167cb215bc4d841e28930bbf9f4b222cee0cc7bb38cbe9f5badcbb57ce80d71eeda23c4187bd779d8534686c7941ce1b99d2a146597e0a119c6cab30ffabe6cf8b63cee6d3940524404ac65649212b2719e848b95b0d84efdf3c4c6eaa099cb1e022f1e8ed99d4fbdeaeac68643ef85f994dd183558bf722c8aa025bb0ee9baf1cb32b34181ba2014d01616e298d3f9d588a1ceac46a6407605dff8ebd481310f98cb23035737e6264de2e67aae34a357e22be34a66e5718f8162083acfa6f6558b4f6fa85e45ae4986e8305223e4835945a276ba1f750b9879e792b7829f6571d49d33a53a70b3944a022da0703e942228bc6dcba3f7a496f942343a9825e1e2ca017f42137f5f6cfc795ed4f40da081ff7577dfe3a6217d9119477dc2085155cf97bf26d439e70b949411f87c7f5420a3762acd23b54134058c8833724160aa1bcd1ad06f6360e3c778e8de88c864db37c4e45a43ce4ee43589354b1f1abb475bfccd157d1775641828b728704b5904488f8d12eb58b3761f0676999b8d1e8bd778074035ef19dd39c82310a814adc9b7932f98df6865b8af19cce40471b9247ced5cab88628b06f2d4473d00027751dd5adfd3815bc78010a007e2b0e8352a51859b24f83de12d2c110473280cf080ee2b1c2495b3edcf6559b96dd64ebb9a8e8cac3b859d3cda148f2e3388c0c9069a14a4ac95c063bda9fa667f201a83813d557da076eb8b8d19d75a40fd3e8396a2974a9a3d573de1ad3b66d3d59e4cd82fa399643a44f1ed645c79ef076e8d65a2002dfe9882a574ed2e298bbcb3cdd60c571d0a5121b32c95232bd343fbc073834215fe01308f373026ce16784e39dc966910b92295a0c824f18329fd41e99c03c7a049c41c63133fcd95af35e22a23380ca808ea552106bca5ce0ab67d36bba5fbedaf20d6f8e0a7ecc82dcf150d6406a5f068d921bc6a65047e5f06c6f357a8f8830d83c7507edbb9bef7d6cb108980ebe9a970c109b27ad7365bc236d1da0769cae3e46a5a7bcd51cc135cd30ecbb3917caddec5c8bde57c4c5241d014343c5d28f2d1c61332ba1d7af2b4b9c051d1bd17fbd47bf6a190906514a3d36275ad20afe495f87b0cef120219e7f3941ee6123f98efeba0c4c9ed8d9ab858f7927a966da8e945ed6bd507040c7e7cd051f2d5a5686f4c16ff871ade99ba50d5e6826a12b10205b8bc6ec96db3f935de9a84f294296d609d8ba08efbb21418d029421e38f46f441341d16c7f55325e97a933b2fe7483ab2807b741b6022e8a02dd9952c9cbce3b89368334d9404c27275278c0cc4d0291cac06980cb40e633e03528faf044272815f1e39a5f9d79b20e4f44661e0024f93b689792e22f332fdf69191e0ec502244728b8e170d1e8e0c2b9420eb9f0c30e379433f06274280aacb65ee33a4c06348e77d7b25040d3faf481119908b1556cdd1616f14a7af53c1badbca1809957ac0c0751a873260ce90dc3fb384598127715a72de3853a26e8748249f236d55ccdbb062e835b53d973e3762f26c1e346162ff1faf33a8ccd47737a6697724b38d309b0e9fd8a0ea43dd2133c001a99ac8d82d283c91a5af28ccc8121df8cc180ab424ab71762d15060e0ffdcdb7273495131779e5b4b86b3cfb449b951b1870739100525d0cd62b5ec601f24b66d2afd81682e69af182d3c1caaaaa48ebedd7d91c90ae727a7338f100076ae39a422d9c7f03af376c44cef634e1216f4bfd21c981c6b263d3228116d530775c116f91a332af3ce86ec375f1f9c68a52fbdead7cbeedf70fc1e3189256eb36c5f4c137dc29ee38c56115707c7529d89a4968c88b5dba8cfd5f9114615b59c89a64af16a516e76ee9804456ceeb3053db61c39f27ce2e2f8f9f6e20d25a43823b690059b258b90726ae59d23fda82fd34819a3a96958da0f65e5ef469d9945278e9356b72f74aa515f023dd216a38f33dbe4b092179a71e495e2f25e969bb29351687cbd21701c3844a22b2a58036b963a845bb926bd067ea257c9f39411a71f6eca10d31e38a71ff47a87b39bc2e27937676f30b64dd6f7c76311631aa73f9d48b82c3e1b1d7999e2e9bb5c5f494284d73e0366fd19d19772cc069b870c71d50569338d349fc3acdc3f60a2243afc5a4f8cd524a369be38a7c7385e76720539717cc07c928c58604c3d0475796a97ae6c93633b93c4827ddbf38b091616970397a4bb85b41e734bb2052c41158edeaa987b5d15a17a27585f69ed262f980513e7b6ef483a0126d35b6e1efcb9ec031b5df2a64a199d5342d2bbb998288ec9b8dc097f00767f6fdb59e0eb2b523b55f6a827eb02b326d642c4850f16dfeaaeb78973f737b7beb85579c009eac318d5a4da26c53a6837ae9f83a87b9f1dde2292682dca71e928b7f9a93f2501770e883e91a9f2e3dcdf2294a9f32eb585af0ee293d113fcc388c190022255ae3f9bd90f2a0a38d78055d480fcb44a2c3d5f162e075a7754a864b82ce2f98fc64fc0c5d3868c607c9d49b5947a4ef54d02335fa2c77a7a669cc1c35d50d50344f9111683e84efa52459d7370077fcc2475f008c1528f7d3b2bceb8093218e2ee57382d8bc379b143922f44a07dda1689942cf49fb181958030a548be4496b8fcc2984d24c1c28eab37198212f19cf7345b6d485257617078e90d19b95439b380fac6086e5f588224ec2f4f35c46b26f0e0eec4fc4199924c712a056e4719e1edd9d51864d3b376741a9aa7a24c6bdd3f8efb3c9c44dfc1eac5f8ba198520dc79473da17abc0bc733cac3282def9875b29acc2606d1f861126877207196d7c5456914d2ead744632b87357d67830470fc39e23f2a7796c76a579c9e193317ee922fa8f550a25313ae11aed35a84aced23d7f6e0349da76f8ea54469ba1ef1f2811ff4bc971a26ab30a463b99ac062381dfc38ae5f4c048d057fcf276659c2cc1b6dc874dfff55e66a44fd662ac538b469fad90d22f506f6f5e355cc20efde8c3ac49077342c96b638e9eeede0857ce52f7ec7c1bea1824f11378f89ce5ff602609ef31ba4e5ca9d043d7b7ae5acef42d9a781d9a0031aee46435f6af13af0bc4c7fbf995d779ebf33c6988264d824400175dee9001bc2fbb075317e03106b58871b92169a9efb29eb78294b8cc54ec8f4f800f68d842b1c4da33a9e820ecac3c7fdf0b2de2ebd0b24394ec9f4f695fe952017dc5c5ede7c2aea3f8ae7279cef44051f9709513cd12fa1f63c21b1beb6fc60523b5d7e7cd4fcc6d"}, &(0x7f0000000280)=0x1008) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) setsockopt$netlink_NETLINK_PKTINFO(r0, 0x10e, 0x3, &(0x7f00000002c0)=0x7, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:08 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0x100, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:08 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$inet_sctp_SCTP_STREAM_SCHEDULER_VALUE(r0, 0x84, 0x7c, &(0x7f00000002c0)={0x0, 0xf0c, 0x9}, &(0x7f0000000340)=0x8) getsockopt$inet_sctp6_SCTP_GET_PEER_ADDRS(r0, 0x84, 0x6c, &(0x7f00000003c0)={r2, 0x9, "5c0c04f97dd69e76be"}, &(0x7f0000000240)=0xffffffffffffff3f) setsockopt$inet_sctp6_SCTP_DELAYED_SACK(r1, 0x84, 0x10, &(0x7f0000000280)=@sack_info={r3, 0xff, 0x80}, 0xc) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 473.489280] FAULT_FLAG_ALLOW_RETRY missing 30 [ 473.494011] CPU: 1 PID: 30184 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 473.501623] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 473.510970] ffff8801cd177850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 473.519008] ffff8801b935af00 ffff8801cd177a20 0000000000000000 ffff8801cd177a48 [ 473.527041] ffffffff81cb75eb 0000000000000dca ffff8801cd98d108 ffff8801b935b00c [ 473.535073] Call Trace: [ 473.537651] [] dump_stack+0xc1/0x128 [ 473.543006] [] handle_userfault.cold.18+0x3e/0x51 [ 473.549489] [] ? debug_check_no_locks_freed+0x210/0x210 [ 473.556493] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 473.562888] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 473.570070] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 473.576905] [] ? handle_mm_fault+0x1267/0x28e0 [ 473.583131] [] ? handle_mm_fault+0x220f/0x28e0 [ 473.589356] [] handle_mm_fault+0x221d/0x28e0 [ 473.595405] [] ? vm_insert_mixed+0x200/0x200 [ 473.601453] [] __do_page_fault+0x5af/0xd50 [ 473.607332] [] ? mm_fault_error+0x2c0/0x2c0 [ 473.613293] [] ? exit_robust_list+0x220/0x220 [ 473.619430] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 473.626086] [] do_page_fault+0x27/0x30 [ 473.631612] [] page_fault+0x28/0x30 [ 473.636877] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 473.643705] [] ? SyS_pselect6+0x1be/0x540 [ 473.649492] [] ? SyS_select+0x1e0/0x1e0 [ 473.655111] [] ? SyS_futex+0x206/0x310 [ 473.660651] [] ? do_futex+0x1770/0x1770 [ 473.666270] [] ? security_file_ioctl+0x8f/0xc0 [ 473.672495] [] ? do_syscall_64+0x48/0x490 [ 473.678285] [] ? SyS_select+0x1e0/0x1e0 [ 473.683901] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:09 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 473.689600] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:09 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0xfffffffffffffffd, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffc, 0x4, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x40000, 0x0, 0x40, 0x0, 0x0, 0x0, @perf_config_ext={0xad, 0xffffffffffff7fff}, 0x0, 0xb2, 0x0, 0x0, 0x0, 0x0, 0x1000000000000}, 0x0, 0x2, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f00000000c0)) accept(r1, &(0x7f0000000240)=@nfc_llcp, &(0x7f00000002c0)=0x80) 2018/05/02 09:53:09 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:09 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:09 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = getpgrp(0x0) perf_event_open(&(0x7f0000c86f88)={0x2, 0x70, 0xfffffffffffffffd, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff}, r2, 0x0, 0xffffffffffffffff, 0x0) clock_nanosleep(0x0, 0x0, &(0x7f0000b92000)={0x77359400}, &(0x7f0000264000)) pipe(&(0x7f0000000580)={0xffffffffffffffff, 0xffffffffffffffff}) write(r4, &(0x7f00000001c0), 0xfffffef3) read(r3, &(0x7f0000000200)=""/250, 0x50c7e3e3) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r5, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:10 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:10 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x1555555555555601, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$inet_sctp6_SCTP_AUTH_ACTIVE_KEY(r1, 0x84, 0x18, &(0x7f0000000240)={0x0}, &(0x7f0000000280)=0x8) socket$inet6_icmp_raw(0xa, 0x3, 0x3a) getsockopt$inet_sctp_SCTP_GET_PEER_ADDR_INFO(r0, 0x84, 0xf, &(0x7f00000003c0)={r2, @in={{0x2, 0x4, @rand_addr=0x8f}}, 0xf4e6, 0x100, 0x9, 0x1, 0x136}, &(0x7f00000002c0)=0x98) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$BLKSECTGET(r0, 0x1267, &(0x7f0000000540)) setsockopt$inet_dccp_int(r0, 0x21, 0x3, &(0x7f00000000c0)=0x80, 0x1) ioctl$TIOCGPGRP(r0, 0x540f, &(0x7f0000000340)=0x0) waitid(0x1, r4, 0x0, 0x1, &(0x7f0000000480)) 2018/05/02 09:53:10 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x80800) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f0000015000/0x3000)=nil, 0x3000}, 0xffffeffffffffffd}) 2018/05/02 09:53:10 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) modify_ldt$write2(0x11, &(0x7f0000000240)={0x9, 0x20000000, 0x400, 0x74, 0x7, 0xfffffffffffffff9, 0x1, 0x100000000, 0x5, 0x40}, 0x10) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) bind$packet(r0, &(0x7f00000000c0)={0x11, 0x6, r2, 0x1, 0x6b, 0x6}, 0x14) setsockopt$inet6_MCAST_JOIN_GROUP(r0, 0x29, 0x2a, &(0x7f00000003c0)={0x100, {{0xa, 0x4e24, 0x0, @mcast2={0xff, 0x2, [], 0x1}, 0x4}}}, 0x88) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 475.138177] FAULT_FLAG_ALLOW_RETRY missing 30 [ 475.142809] CPU: 1 PID: 30225 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 475.150422] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 475.159772] ffff8801c5eb7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 475.167812] ffff8801b935b080 ffff8801c5eb7a20 0000000000000000 ffff8801c5eb7a48 [ 475.175813] ffffffff81cb75eb 0000000000000dca ffff8801cf5e2108 ffff8801b935b18c [ 475.184282] Call Trace: [ 475.186849] [] dump_stack+0xc1/0x128 [ 475.192192] [] handle_userfault.cold.18+0x3e/0x51 [ 475.198660] [] ? debug_check_no_locks_freed+0x210/0x210 [ 475.205662] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 475.212051] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 475.219215] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 475.226030] [] ? handle_mm_fault+0x1267/0x28e0 [ 475.232240] [] ? handle_mm_fault+0x220f/0x28e0 [ 475.238448] [] handle_mm_fault+0x221d/0x28e0 [ 475.244482] [] ? vm_insert_mixed+0x200/0x200 [ 475.250518] [] __do_page_fault+0x5af/0xd50 [ 475.256379] [] ? mm_fault_error+0x2c0/0x2c0 [ 475.262325] [] ? exit_robust_list+0x220/0x220 [ 475.268447] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 475.275091] [] do_page_fault+0x27/0x30 [ 475.280604] [] page_fault+0x28/0x30 [ 475.285870] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 475.292691] [] ? SyS_pselect6+0x1be/0x540 [ 475.298464] [] ? SyS_select+0x1e0/0x1e0 [ 475.304065] [] ? SyS_futex+0x206/0x310 [ 475.309577] [] ? do_futex+0x1770/0x1770 [ 475.315177] [] ? security_file_ioctl+0x8f/0xc0 [ 475.321383] [] ? do_syscall_64+0x48/0x490 [ 475.327167] [] ? SyS_select+0x1e0/0x1e0 [ 475.332775] [] do_syscall_64+0x1a6/0x490 [ 475.338464] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:11 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:11 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:11 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:11 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) userfaultfd(0x0) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:11 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:11 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x40080, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) readv(r1, &(0x7f00000014c0)=[{&(0x7f00000003c0)=""/4096, 0x1000}, {&(0x7f00000013c0)=""/237, 0xed}, {&(0x7f00000000c0)=""/15, 0xf}, {&(0x7f0000000240)=""/20, 0x14}, {&(0x7f0000000280)=""/18, 0x12}], 0x5) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:11 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) keyctl$join(0x1, &(0x7f00000000c0)={0x73, 0x79, 0x7a, 0x1}) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$SNDRV_SEQ_IOCTL_GET_QUEUE_CLIENT(r0, 0xc04c5349, &(0x7f0000000240)={0x5, 0x5, 0x8}) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) ioctl$DRM_IOCTL_GEM_FLINK(r0, 0xc008640a, &(0x7f00000002c0)={0x0}) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(r0, 0xc00c642d, &(0x7f00000003c0)={r3, 0x80000, r0}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:11 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0xffffffeb) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) recvfrom(r0, &(0x7f0000000240)=""/106, 0x6a, 0x0, &(0x7f00000003c0)=@pptp={0x18, 0x2, {0x2, @loopback=0x7f000001}}, 0x80) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$BLKROGET(r0, 0x125e, &(0x7f00000000c0)) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 476.996738] FAULT_FLAG_ALLOW_RETRY missing 30 [ 477.001605] CPU: 0 PID: 30263 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 477.009229] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 477.018581] ffff88019108f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 477.026622] ffff8801d7765500 ffff88019108fa20 0000000000000000 ffff88019108fa48 [ 477.034679] ffffffff81cb75eb 0000000000000dca ffff8801cee8a108 ffff8801d776560c [ 477.042715] Call Trace: [ 477.045297] [] dump_stack+0xc1/0x128 [ 477.050676] [] handle_userfault.cold.18+0x3e/0x51 [ 477.057188] [] ? debug_check_no_locks_freed+0x210/0x210 [ 477.064195] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 477.070596] [] ? preempt_schedule+0x25/0x30 [ 477.076563] [] ? ___preempt_schedule+0x16/0x18 [ 477.082789] [] ? handle_mm_fault+0x1267/0x28e0 [ 477.089009] [] ? handle_mm_fault+0x220f/0x28e0 [ 477.095233] [] handle_mm_fault+0x221d/0x28e0 [ 477.101278] [] ? vm_insert_mixed+0x200/0x200 [ 477.107325] [] __do_page_fault+0x5af/0xd50 [ 477.113200] [] ? mm_fault_error+0x2c0/0x2c0 [ 477.119158] [] ? exit_robust_list+0x220/0x220 [ 477.125292] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 477.131951] [] do_page_fault+0x27/0x30 [ 477.137483] [] page_fault+0x28/0x30 [ 477.142751] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 477.149582] [] ? SyS_pselect6+0x1be/0x540 [ 477.155371] [] ? SyS_select+0x1e0/0x1e0 [ 477.160987] [] ? SyS_futex+0x206/0x310 [ 477.166517] [] ? do_futex+0x1770/0x1770 [ 477.172136] [] ? security_file_ioctl+0x8f/0xc0 [ 477.178360] [] ? do_syscall_64+0x48/0x490 [ 477.184145] [] ? SyS_select+0x1e0/0x1e0 [ 477.189761] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:12 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 477.195465] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:12 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:13 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) accept4$packet(r0, &(0x7f0000001600)={0x0, 0x0, 0x0}, &(0x7f0000001640)=0x14, 0x80000) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:13 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:13 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) getsockopt$inet_sctp6_SCTP_CONTEXT(r0, 0x84, 0x11, &(0x7f0000000240)={0x0, 0x7f}, &(0x7f0000000280)=0x8) getsockopt$inet_sctp6_SCTP_PR_SUPPORTED(r0, 0x84, 0x71, &(0x7f00000002c0)={r1, 0x2}, &(0x7f0000000340)=0x8) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_inet_SIOCGIFPFLAGS(r2, 0x8935, &(0x7f00000000c0)={'teql0\x00', 0x5}) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) getsockopt$inet_sctp6_SCTP_PARTIAL_DELIVERY_POINT(r2, 0x84, 0x13, &(0x7f00000003c0)={r1, 0x202}, &(0x7f0000000400)=0x8) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:13 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) ftruncate(r2, 0x7fffffff) recvmmsg(r0, &(0x7f0000004580)=[{{&(0x7f0000000240)=@nl=@unspec, 0x80, &(0x7f0000000500)=[{&(0x7f00000003c0)=""/254, 0xfe}, {&(0x7f00000000c0)=""/39, 0x27}, {&(0x7f00000002c0)=""/9, 0x9}, {&(0x7f00000004c0)=""/47, 0x2f}], 0x4, &(0x7f0000000540)=""/77, 0x4d, 0x1}, 0x1ff}, {{&(0x7f00000005c0)=@l2, 0x80, &(0x7f0000001880)=[{&(0x7f0000000640)=""/14, 0xe}, {&(0x7f0000000680)=""/58, 0x3a}, {&(0x7f00000006c0)=""/151, 0x97}, {&(0x7f0000000780)=""/52, 0x34}, {&(0x7f00000007c0)=""/147, 0x93}, {&(0x7f0000000880)=""/4096, 0x1000}], 0x6, &(0x7f0000001900)=""/73, 0x49, 0x9}, 0x7ff}, {{&(0x7f0000001980)=@sco, 0x80, &(0x7f0000003dc0)=[{&(0x7f0000001a00)=""/175, 0xaf}, {&(0x7f0000001ac0)=""/163, 0xa3}, {&(0x7f0000001b80)=""/4096, 0x1000}, {&(0x7f0000002b80)=""/141, 0x8d}, {&(0x7f0000002c40)=""/148, 0x94}, {&(0x7f0000002d00)=""/147, 0x93}, {&(0x7f0000002dc0)=""/4096, 0x1000}], 0x7, 0x0, 0x0, 0x2}, 0x3}, {{0x0, 0x0, &(0x7f0000003fc0)=[{&(0x7f0000003e40)=""/129, 0x81}, {&(0x7f0000003f00)=""/15, 0xf}, {&(0x7f0000003f40)=""/108, 0x6c}], 0x3, &(0x7f0000004000)=""/238, 0xee, 0x6}, 0x3}, {{&(0x7f0000004100)=@llc={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @remote}, 0x80, &(0x7f0000004440)=[{&(0x7f0000004180)=""/13, 0xd}, {&(0x7f00000041c0)=""/123, 0x7b}, {&(0x7f0000004240)=""/65, 0x41}, {&(0x7f00000042c0)=""/211, 0xd3}, {&(0x7f00000043c0)=""/100, 0x64}], 0x5, &(0x7f00000044c0)=""/159, 0x9f, 0x1ff}, 0x7}], 0x5, 0x40000003, &(0x7f00000046c0)={0x77359400}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:13 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:13 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:13 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) r1 = openat$selinux_commit_pending_bools(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/commit_pending_bools\x00', 0x1, 0x0) ioctl$PERF_EVENT_IOC_PERIOD(r1, 0x40082404, &(0x7f0000000080)=0x8) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000000)={0xaa, 0x40}) 2018/05/02 09:53:13 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 478.712384] FAULT_FLAG_ALLOW_RETRY missing 30 [ 478.717281] CPU: 1 PID: 30303 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 478.724899] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 478.734243] ffff8801b98f7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 478.742239] ffff8801d7764780 ffff8801b98f7a20 0000000000000000 ffff8801b98f7a48 [ 478.750230] ffffffff81cb75eb 0000000000000dca ffff88019cc65108 ffff8801d776488c [ 478.758219] Call Trace: [ 478.760785] [] dump_stack+0xc1/0x128 [ 478.766125] [] handle_userfault.cold.18+0x3e/0x51 [ 478.772597] [] ? debug_check_no_locks_freed+0x210/0x210 [ 478.779587] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 478.785971] [] ? preempt_schedule+0x25/0x30 [ 478.791919] [] ? ___preempt_schedule+0x16/0x18 [ 478.798128] [] ? handle_mm_fault+0x1267/0x28e0 [ 478.804334] [] ? handle_mm_fault+0x220f/0x28e0 [ 478.810542] [] handle_mm_fault+0x221d/0x28e0 [ 478.816576] [] ? vm_insert_mixed+0x200/0x200 [ 478.822612] [] __do_page_fault+0x5af/0xd50 [ 478.828469] [] ? mm_fault_error+0x2c0/0x2c0 [ 478.834417] [] ? exit_robust_list+0x220/0x220 [ 478.840535] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 478.847178] [] do_page_fault+0x27/0x30 [ 478.852691] [] page_fault+0x28/0x30 [ 478.857944] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 478.864757] [] ? SyS_pselect6+0x1be/0x540 [ 478.870527] [] ? SyS_select+0x1e0/0x1e0 [ 478.876123] [] ? SyS_futex+0x206/0x310 [ 478.881642] [] ? do_futex+0x1770/0x1770 [ 478.887243] [] ? security_file_ioctl+0x8f/0xc0 [ 478.893447] [] ? do_syscall_64+0x48/0x490 [ 478.899217] [] ? SyS_select+0x1e0/0x1e0 [ 478.904815] [] do_syscall_64+0x1a6/0x490 [ 478.910501] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:15 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x200, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0xffffffffffffffdf) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$inet6_MCAST_MSFILTER(r1, 0x29, 0x30, &(0x7f0000000700)=ANY=[@ANYBLOB="b3010000000000000a004e2409000000ff010000000000000000000000000001080000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000050000000a004e2201010000fe800000000000130002000000000f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a004e2401000000fe8000000000000000000000000000aa04000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a004e23fffffffffe8000000000000000000000000000aa03000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000070000000000000a004e2361141b15b0fc4bb8d92601000100ff02000000000000000000000000000107000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a004e2102000000fe800000000000000000000010976587c3d378f44446000000bb02000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"], 0x310) getsockopt$inet_sctp_SCTP_ENABLE_STREAM_RESET(r0, 0x84, 0x76, &(0x7f00000000c0)={0x0, 0x6}, &(0x7f0000000240)=0x8) getsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000280)={0x0, 0xed, 0xffffffff}, &(0x7f00000002c0)=0x10) getsockopt$inet_sctp6_SCTP_STATUS(r1, 0x84, 0xe, &(0x7f00000003c0)={r3, 0xffffffff, 0x0, 0x2, 0xd190, 0xffff, 0x7, 0x80, {r4, @in={{0x2, 0x4e22}}, 0x7, 0xfffffffffffffffd, 0x76, 0x9, 0x9}}, &(0x7f0000000340)=0xb0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:15 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:15 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:15 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:15 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:15 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0x7ff, &(0x7f00000001c0)={0x8}, 0xfffffe7b) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ppoll(&(0x7f0000000240)=[{r0, 0xc000}, {r1, 0x5}, {r1, 0x1000}, {r1, 0x1}], 0x4, &(0x7f0000000280)={0x77359400}, &(0x7f00000002c0)={0x6}, 0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$inet_MCAST_MSFILTER(r1, 0x0, 0x30, &(0x7f0000000780)=ANY=[@ANYBLOB="000000000000000002004e21e0000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000600000002004e200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002004e23ffffffff00000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002004e210000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002004e20e000000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002f5a670e0002004e247f00000100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002004e22e0000001000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000"], 0x390) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x7, 0x0, &(0x7f0000000300)) ioctl$DMA_BUF_IOCTL_SYNC(r0, 0x40086200, &(0x7f00000000c0)=0x1) socket$inet_sctp(0x2, 0x1, 0x84) 2018/05/02 09:53:15 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x10, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:15 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) r1 = openat$cgroup_ro(0xffffffffffffffff, &(0x7f0000000080)='cpuset.effective_mems\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_CLIENT_ID(r1, 0x80045301, &(0x7f0000000040)) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:15 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000280)='IPVS\x00') sendmsg$IPVS_CMD_FLUSH(r0, &(0x7f00000003c0)={&(0x7f0000000240)={0x10}, 0xc, &(0x7f0000000340)={&(0x7f00000002c0)={0x1c, r1, 0x400, 0x70bd25, 0x25dfdbfb, {0x11}, [@IPVS_CMD_ATTR_TIMEOUT_UDP={0x8, 0x6, 0x100000001}]}, 0x1c}, 0x1, 0x0, 0x0, 0x800}, 0x4000) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f00000000c0)='vcan0\x00', 0x10) getsockopt$inet6_mreq(r2, 0x29, 0x15, &(0x7f0000000400)={@loopback}, &(0x7f0000000440)=0x14) getsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f0000000600)={{{@in6=@local, @in6=@mcast2}}, {{@in=@rand_addr}, 0x0, @in6=@mcast1}}, &(0x7f0000000700)=0xe8) r3 = socket$nl_xfrm(0x11, 0x3, 0x6) getsockopt$sock_cred(r3, 0x1, 0x11, &(0x7f00000000c0)={0x0, 0x0}, &(0x7f0000000180)=0x7) setreuid(0x0, r4) setpriority(0x0, 0x0, 0x0) getsockopt$inet_IP_XFRM_POLICY(r0, 0x0, 0x11, &(0x7f0000000740)={{{@in6=@dev, @in6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{}, 0x0, @in6}}, &(0x7f0000000840)=0xe8) ioctl$DRM_IOCTL_INFO_BUFS(r2, 0xc0106418, &(0x7f00000004c0)={0x81, 0x8000, 0x7, 0x8, 0x4, 0x80}) setsockopt$inet_mreqsrc(r0, 0x0, 0x25, &(0x7f0000000480)={@empty, @multicast1=0xe0000001, @multicast2=0xe0000002}, 0xc) socketpair$inet(0x2, 0x800, 0x9f, &(0x7f00000008c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000880)={'ifb0\x00', r5}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r7, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:16 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) openat$ipvs(0xffffffffffffff9c, &(0x7f0000000280)='/proc/sys/net/ipv4/vs/sync_ports\x00', 0x2, 0x0) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) getpeername$packet(r0, &(0x7f00000000c0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @broadcast}, &(0x7f0000000240)=0x14) 2018/05/02 09:53:16 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:16 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000000)={0xaa, 0xf}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) getsockopt$inet_IP_IPSEC_POLICY(r0, 0x0, 0x10, &(0x7f0000000040)={{{@in=@remote, @in=@loopback}}, {{@in=@loopback}, 0x0, @in6=@remote}}, &(0x7f0000000140)=0xe8) 2018/05/02 09:53:16 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000000c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:16 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:16 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:16 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:16 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 481.591423] FAULT_FLAG_ALLOW_RETRY missing 30 [ 481.596165] CPU: 1 PID: 30379 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 481.603780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 481.613131] ffff8801ccc87850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 481.621175] ffff8801b935b800 ffff8801ccc87a20 0000000000000000 ffff8801ccc87a48 [ 481.629218] ffffffff81cb75eb 0000000000000dca ffff8801d8bd5108 ffff8801b935b90c [ 481.637264] Call Trace: [ 481.639841] [] dump_stack+0xc1/0x128 [ 481.645202] [] handle_userfault.cold.18+0x3e/0x51 [ 481.651693] [] ? debug_check_no_locks_freed+0x210/0x210 [ 481.658697] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 481.665095] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 481.672272] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 481.679105] [] ? handle_mm_fault+0x1267/0x28e0 [ 481.685327] [] ? handle_mm_fault+0x220f/0x28e0 [ 481.691551] [] handle_mm_fault+0x221d/0x28e0 [ 481.697620] [] ? vm_insert_mixed+0x200/0x200 [ 481.703671] [] __do_page_fault+0x5af/0xd50 [ 481.709547] [] ? mm_fault_error+0x2c0/0x2c0 [ 481.715507] [] ? exit_robust_list+0x220/0x220 [ 481.721644] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 481.728300] [] do_page_fault+0x27/0x30 [ 481.733826] [] page_fault+0x28/0x30 [ 481.739091] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 481.745920] [] ? SyS_pselect6+0x1be/0x540 [ 481.751705] [] ? SyS_select+0x1e0/0x1e0 [ 481.757317] [] ? SyS_futex+0x206/0x310 [ 481.762859] [] ? do_futex+0x1770/0x1770 [ 481.768475] [] ? security_file_ioctl+0x8f/0xc0 [ 481.774701] [] ? do_syscall_64+0x48/0x490 [ 481.780488] [] ? SyS_select+0x1e0/0x1e0 [ 481.786101] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:17 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:17 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 481.791806] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:17 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = openat$full(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/full\x00', 0x400400, 0x0) setsockopt$inet6_MCAST_MSFILTER(r0, 0x29, 0x30, &(0x7f0000000440)={0x8001, {{0xa, 0x4e24, 0xdb3, @remote={0xfe, 0x80, [], 0xbb}, 0x4}}, 0x0, 0x1, [{{0xa, 0x4e22, 0x4, @remote={0xfe, 0x80, [], 0xbb}, 0x7}}]}, 0x110) socketpair(0x3, 0x80800, 0xffffffff, &(0x7f0000000000)={0xffffffffffffffff}) getsockname$packet(r1, &(0x7f0000000040)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @remote}, &(0x7f0000000080)=0x14) r2 = userfaultfd(0x0) ioctl$UFFDIO_API(r2, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) userfaultfd(0x80800) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r2, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:17 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/snapshot\x00', 0x1, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x9a2, 0x1}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00'}) poll(&(0x7f0000000240)=[{r0, 0x1000}, {r1, 0x1080}, {r2, 0x6001}, {r0, 0x400}, {r2, 0x8}, {r1, 0x71}], 0x6, 0x2) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 482.750556] FAULT_FLAG_ALLOW_RETRY missing 30 [ 482.755126] CPU: 1 PID: 30408 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 482.762736] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 482.772079] ffff8801d8f5f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 482.780061] ffff8801b935b980 ffff8801d8f5fa20 0000000000000000 ffff8801d8f5fa48 [ 482.788064] ffffffff81cb75eb 0000000000000dca ffff88019296e908 ffff8801b935ba8c [ 482.796056] Call Trace: [ 482.798621] [] dump_stack+0xc1/0x128 [ 482.803960] [] handle_userfault.cold.18+0x3e/0x51 [ 482.810426] [] ? debug_check_no_locks_freed+0x210/0x210 [ 482.817413] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 482.823790] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 482.830956] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 482.837772] [] ? handle_mm_fault+0x1267/0x28e0 [ 482.843976] [] ? handle_mm_fault+0x220f/0x28e0 [ 482.850183] [] handle_mm_fault+0x221d/0x28e0 [ 482.856212] [] ? vm_insert_mixed+0x200/0x200 [ 482.862245] [] __do_page_fault+0x5af/0xd50 [ 482.868101] [] ? mm_fault_error+0x2c0/0x2c0 [ 482.874046] [] ? exit_robust_list+0x220/0x220 [ 482.880164] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 482.886802] [] do_page_fault+0x27/0x30 [ 482.892312] [] page_fault+0x28/0x30 [ 482.897563] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 482.904376] [] ? SyS_pselect6+0x1be/0x540 [ 482.910143] [] ? SyS_select+0x1e0/0x1e0 [ 482.915741] [] ? SyS_futex+0x206/0x310 [ 482.921248] [] ? get_unused_fd_flags+0xd0/0xd0 [ 482.927469] [] ? do_futex+0x1770/0x1770 [ 482.933065] [] ? do_syscall_64+0x48/0x490 [ 482.938834] [] ? SyS_select+0x1e0/0x1e0 [ 482.944432] [] do_syscall_64+0x1a6/0x490 [ 482.950118] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:18 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$inet_sctp_SCTP_ASSOCINFO(r0, 0x84, 0x1, &(0x7f00000000c0)={0x0, 0x6d24f07, 0x1, 0xffffffffffffffaf, 0x7, 0x1}, &(0x7f0000000240)=0x14) setsockopt$inet_sctp_SCTP_PRIMARY_ADDR(r1, 0x84, 0x6, &(0x7f00000003c0)={r2, @in={{0x2, 0x4e22, @multicast2=0xe0000002}}}, 0x84) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:18 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:18 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x3c3, 0x1, &(0x7f00000000c0)={0x8}, 0x8) r1 = socket(0xf, 0x3, 0x4) ioctl$sock_inet_SIOCGIFDSTADDR(r1, 0x8917, &(0x7f00000002c0)={'syzkaller1\x00', {0x2, 0x4e23, @local={0xac, 0x14, 0x14, 0xaa}}}) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER(r0, 0xc0605345, &(0x7f00000003c0)={0x54c, 0x2, {0x0, 0x3, 0x100000001, 0x3, 0x3}}) ioctl$TUNSETTXFILTER(r0, 0x400454d1, &(0x7f0000000340)={0x1, 0x2, [@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0xe}, @random="7006356499f5"]}) getsockopt$inet6_mreq(r0, 0x29, 0x1f, &(0x7f0000000240)={@local, 0x0}, &(0x7f0000000280)=0x14) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f00000001c0)={"736174022300001a2d7c27004478e251", r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:18 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) recvmmsg(r1, &(0x7f00000022c0)=[{{&(0x7f0000000240)=@in={0x0, 0x0, @loopback}, 0x80, &(0x7f00000018c0)=[{&(0x7f00000003c0)=""/187, 0xbb}, {&(0x7f0000000480)=""/200, 0xc8}, {&(0x7f0000000580)=""/4096, 0x1000}, {&(0x7f0000001580)=""/103, 0x67}, {&(0x7f0000001600)=""/237, 0xed}, {&(0x7f0000001700)=""/228, 0xe4}, {&(0x7f00000000c0)=""/44, 0x2c}, {&(0x7f0000001800)=""/160, 0xa0}], 0x8, &(0x7f0000001940)=""/177, 0xb1, 0x40000000}, 0x8000}, {{&(0x7f0000001a00)=@pppoe={0x0, 0x0, {0x0, @link_local}}, 0x80, &(0x7f0000001f40)=[{&(0x7f0000001a80)=""/226, 0xe2}, {&(0x7f0000001b80)=""/222, 0xde}, {&(0x7f0000001c80)=""/160, 0xa0}, {&(0x7f0000001d40)=""/234, 0xea}, {&(0x7f0000001e40)=""/244, 0xf4}], 0x5, 0x0, 0x0, 0x4}, 0x2725}, {{&(0x7f0000001fc0)=@ethernet, 0x80, &(0x7f0000002180)=[{&(0x7f00000002c0)=""/46, 0x2e}, {&(0x7f0000000340)=""/21, 0x15}, {&(0x7f0000002040)=""/112, 0x70}, {&(0x7f00000020c0)=""/168, 0xa8}], 0x4, &(0x7f00000021c0)=""/208, 0xd0, 0x3}}], 0x3, 0x2000, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:18 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:18 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:18 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = dup2(0xffffffffffffffff, 0xffffffffffffff9c) setsockopt$packet_int(r0, 0x107, 0x7, &(0x7f0000000240)=0x4, 0x4) r1 = userfaultfd(0x80000) r2 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000040)='/dev/ppp\x00', 0x400, 0x0) epoll_ctl$EPOLL_CTL_MOD(r2, 0x3, r1, &(0x7f0000000080)={0x10}) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) ioctl$sock_SIOCGPGRP(r0, 0x8904, &(0x7f00000002c0)=0x0) ptrace$poke(0x4, r3, &(0x7f0000000340), 0x6) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) getsockopt$inet_sctp_SCTP_CONTEXT(r2, 0x84, 0x11, &(0x7f0000000100)={0x0, 0x101}, &(0x7f0000000140)=0x8) getsockopt$inet_sctp_SCTP_STREAM_SCHEDULER_VALUE(r2, 0x84, 0x7c, &(0x7f0000000180)={r4, 0x7ff, 0x7d7}, &(0x7f0000000200)=0x8) ioctl$PIO_FONTRESET(r1, 0x4b6d, 0x0) ioctl$UFFDIO_ZEROPAGE(r1, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000014000/0x1000)=nil, 0x1000}, 0x2}) perf_event_open(&(0x7f0000000440)={0x0, 0x70, 0x1000, 0x4, 0x7, 0x3f, 0x0, 0x8, 0x0, 0xf, 0x1f, 0x0, 0x7fffffff, 0x979e, 0x80000000, 0x0, 0x2797, 0xf9fc55b, 0x7c3, 0x7f, 0x9, 0x5, 0xff, 0x6, 0x4b9e, 0xfffffffffffffffe, 0x1, 0x200, 0x5, 0x5, 0x4, 0x934, 0xbfab, 0xa915, 0xfffffffffffffffc, 0x81, 0x8001, 0x7, 0x0, 0x4, 0x4, @perf_config_ext={0x1f6d6de6, 0x1}, 0x400, 0x8, 0x5, 0x7, 0x9, 0x6, 0x80}, r3, 0xa, r0, 0x8) ioctl$LOOP_SET_FD(r2, 0x4c00, r1) getgroups(0x3, &(0x7f0000000300)=[0x0, 0x0, 0x0]) setfsgid(r5) flistxattr(r2, &(0x7f00000000c0)=""/5, 0x5) clone(0x80000, &(0x7f0000000440), &(0x7f0000000280), &(0x7f00000003c0), &(0x7f0000000380)) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:18 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:19 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) ioctl(r0, 0x1, &(0x7f00000000c0)="252340bc29e1e7797565c3ce970fe9") socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 484.023478] FAULT_FLAG_ALLOW_RETRY missing 30 [ 484.028275] CPU: 0 PID: 30432 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 484.035892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 484.045240] ffff88019a63f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 484.053290] ffff8801d7765b00 ffff88019a63fa20 0000000000000000 ffff88019a63fa48 [ 484.061325] ffffffff81cb75eb 0000000000000dca ffff8801bbc62108 ffff8801d7765c0c [ 484.069364] Call Trace: [ 484.071943] [] dump_stack+0xc1/0x128 [ 484.077298] [] handle_userfault.cold.18+0x3e/0x51 [ 484.083784] [] ? debug_check_no_locks_freed+0x210/0x210 [ 484.090788] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 484.097181] [] ? preempt_schedule+0x25/0x30 [ 484.103140] [] ? ___preempt_schedule+0x16/0x18 [ 484.109364] [] ? handle_mm_fault+0x1267/0x28e0 [ 484.115592] [] ? handle_mm_fault+0x220f/0x28e0 [ 484.121816] [] handle_mm_fault+0x221d/0x28e0 [ 484.127862] [] ? vm_insert_mixed+0x200/0x200 [ 484.133910] [] __do_page_fault+0x5af/0xd50 [ 484.139789] [] ? mm_fault_error+0x2c0/0x2c0 [ 484.145749] [] ? exit_robust_list+0x220/0x220 [ 484.151894] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 484.158555] [] do_page_fault+0x27/0x30 [ 484.164085] [] page_fault+0x28/0x30 [ 484.169354] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 484.176186] [] ? SyS_pselect6+0x1be/0x540 [ 484.181969] [] ? SyS_select+0x1e0/0x1e0 [ 484.187582] [] ? SyS_futex+0x206/0x310 [ 484.193111] [] ? do_futex+0x1770/0x1770 [ 484.198740] [] ? ptrace_get_task_struct+0x91/0x150 [ 484.205308] [] ? do_syscall_64+0x48/0x490 [ 484.211095] [] ? SyS_select+0x1e0/0x1e0 [ 484.216709] [] do_syscall_64+0x1a6/0x490 [ 484.222412] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:20 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:20 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:20 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:20 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) signalfd4(r2, &(0x7f00000000c0)={0x3}, 0x8, 0x80800) getsockopt$inet_sctp_SCTP_PR_ASSOC_STATUS(r0, 0x84, 0x73, &(0x7f0000000240)={0x0, 0xffff, 0x30, 0x5}, &(0x7f0000000280)=0x18) setsockopt$inet_sctp_SCTP_ASSOCINFO(r1, 0x84, 0x1, &(0x7f00000002c0)={r4, 0x9, 0x2, 0x315, 0x5, 0x9}, 0x14) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:20 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:21 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0xaec992e84a6fd19c, 0x4, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = dup2(r2, r2) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) socket$nl_generic(0x10, 0x3, 0x10) getsockopt$inet_sctp_SCTP_GET_PEER_ADDR_INFO(r0, 0x84, 0xf, &(0x7f0000000240)={0x0, @in6={{0xa, 0x4e20, 0x3, @remote={0xfe, 0x80, [], 0xbb}, 0x316}}, 0x101, 0x3, 0x5, 0xc442, 0xaf}, &(0x7f00000000c0)=0x98) getsockopt$inet_sctp6_SCTP_GET_ASSOC_STATS(r3, 0x84, 0x70, &(0x7f00000003c0)={r5, @in6={{0xa, 0x4e22, 0x2, @loopback={0x0, 0x1}, 0x2}}, [0x4, 0x68c, 0xff, 0x1, 0x7, 0x9, 0xf5, 0x8, 0xff, 0x92a, 0x7, 0x4, 0x101, 0x27, 0x7]}, &(0x7f00000004c0)=0x100) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:21 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:21 executing program 2: socket$inet6_sctp(0xa, 0x5, 0x84) r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000091, 0x4000000000080002, 0x100000000000) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$BLKTRACESTOP(r0, 0x1275, 0x0) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$TIOCGETD(r0, 0x5424, &(0x7f00000000c0)) 2018/05/02 09:53:21 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) r1 = openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000000)='/dev/pktcdvd/control\x00', 0x44400, 0x0) r2 = syz_genetlink_get_family_id$fou(&(0x7f0000000080)='fou\x00') sendmsg$FOU_CMD_GET(r1, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r2, 0x100, 0x70bd2c, 0x25dfdbfb, {0x3}, [@FOU_ATTR_PORT={0x8, 0x1, 0x4e21}, @FOU_ATTR_IPPROTO={0x8, 0x3, 0x5c}, @FOU_ATTR_IPPROTO={0x8, 0x3, 0x3a}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040001}, 0x810) 2018/05/02 09:53:21 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:21 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:21 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:21 executing program 5: r0 = syz_open_dev$mice(&(0x7f0000000480)='/dev/input/mice\x00', 0x0, 0x40000) getsockopt$inet_sctp6_SCTP_PARTIAL_DELIVERY_POINT(0xffffffffffffff9c, 0x84, 0x13, &(0x7f00000004c0)={0x0, 0x6}, &(0x7f0000000500)=0x8) setsockopt$inet_sctp6_SCTP_PEER_ADDR_THLDS(r0, 0x84, 0x1f, &(0x7f0000000540)={r1, @in={{0x2, 0x4e24, @remote={0xac, 0x14, 0x14, 0xbb}}}, 0xff}, 0x90) r2 = socket$nl_crypto(0x10, 0x3, 0x15) getsockopt$inet_pktinfo(0xffffffffffffffff, 0x0, 0x8, &(0x7f00000003c0)={0x0, @broadcast, @loopback}, &(0x7f0000000400)=0xc) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000440)={'gre0\x00', r3}) r4 = openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000240)='/dev/pktcdvd/control\x00', 0x402000, 0x0) getsockopt$inet_sctp6_SCTP_PR_ASSOC_STATUS(0xffffffffffffffff, 0x84, 0x73, &(0x7f0000000280)={0x0, 0x0, 0x10, 0x7fffffff, 0xfff}, &(0x7f00000002c0)=0x18) setsockopt$inet_sctp_SCTP_STREAM_SCHEDULER(r4, 0x84, 0x7b, &(0x7f0000000340)={r5, 0x8}, 0x8) r6 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r6, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r7 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r7, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r7, &(0x7f0000000200)={0x11, 0x0, r8, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r7, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r7, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) ioctl$sock_inet_SIOCGIFADDR(r6, 0x8915, &(0x7f00000000c0)={'gre0\x00', {0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x1d}}}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$KDADDIO(r6, 0x4b34, 0x1f) 2018/05/02 09:53:21 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) ioctl$PERF_EVENT_IOC_ID(r0, 0x80082407, &(0x7f0000000200)) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) fchdir(r1) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7, 0x0, 0xfffffffffffffffe, 0x0, 0x0, 0xffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x4, 0x0, 0x0, 0x0, 0x6}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f00000000c0)={0x11, 0x0, r2, 0x1, 0x7f, 0x6, @remote={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xbb}}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) setsockopt$inet_tcp_TCP_ULP(r0, 0x6, 0x1f, &(0x7f0000000240)='tls\x00', 0x4) setsockopt$netlink_NETLINK_DROP_MEMBERSHIP(r1, 0x10e, 0x2, &(0x7f0000000280)=0x4, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:22 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) write$tun(r0, &(0x7f00000003c0)=ANY=[@ANYBLOB="aaaaaaaaaabb0180c2000003000c0300006002030000a1d347eadcf8130d41337c42d0bd30c4b5adc0895c2d6bc4d875bcd29a129546ce2e8339142dad41fc0cef5d543fa3ebd23dc0d1b060d85db32026e0cfea568c8be7a2ee03bc5282938c28d0b439a8961999f13c7ede4ee1ec6124222b14aaa7d292953f4d0842332d12e0eea3ce8c1244a90a8dbf8b19c2271d39ef73f71b"], 0x1e) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) llistxattr(&(0x7f00000000c0)='./file0\x00', &(0x7f0000000240)=""/104, 0x68) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) getsockopt$inet_sctp_SCTP_AUTH_ACTIVE_KEY(r1, 0x84, 0x18, &(0x7f0000000300)={0x0, 0x6}, &(0x7f0000000340)=0x8) getsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER_VALUE(r1, 0x84, 0x7c, &(0x7f0000000480)={r3, 0x2, 0x7}, &(0x7f00000004c0)=0x8) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000002c0)) [ 486.796284] FAULT_FLAG_ALLOW_RETRY missing 30 [ 486.800920] CPU: 1 PID: 30488 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 486.808538] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 486.817897] ffff8801cc42f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 486.825936] ffff8801b935be00 ffff8801cc42fa20 0000000000000000 ffff8801cc42fa48 [ 486.833969] ffffffff81cb75eb 0000000000000dca ffff88019cca6908 ffff8801b935bf0c [ 486.842022] Call Trace: [ 486.844598] [] dump_stack+0xc1/0x128 [ 486.849957] [] handle_userfault.cold.18+0x3e/0x51 [ 486.856447] [] ? debug_check_no_locks_freed+0x210/0x210 [ 486.863449] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 486.869843] [] ? preempt_schedule+0x25/0x30 [ 486.875801] [] ? ___preempt_schedule+0x16/0x18 [ 486.882021] [] ? handle_mm_fault+0x1267/0x28e0 [ 486.888242] [] ? handle_mm_fault+0x220f/0x28e0 [ 486.894466] [] handle_mm_fault+0x221d/0x28e0 [ 486.900511] [] ? vm_insert_mixed+0x200/0x200 [ 486.906557] [] __do_page_fault+0x5af/0xd50 [ 486.912434] [] ? mm_fault_error+0x2c0/0x2c0 [ 486.918398] [] ? exit_robust_list+0x220/0x220 [ 486.924533] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 486.931194] [] do_page_fault+0x27/0x30 [ 486.936726] [] page_fault+0x28/0x30 [ 486.942007] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 486.948843] [] ? SyS_pselect6+0x1be/0x540 [ 486.954636] [] ? SyS_select+0x1e0/0x1e0 [ 486.960253] [] ? SyS_futex+0x206/0x310 [ 486.965785] [] ? do_futex+0x1770/0x1770 [ 486.971400] [] ? security_file_ioctl+0x8f/0xc0 [ 486.977623] [] ? do_syscall_64+0x48/0x490 [ 486.983409] [] ? SyS_select+0x1e0/0x1e0 [ 486.989024] [] do_syscall_64+0x1a6/0x490 [ 486.994726] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:22 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:23 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) personality(0x1bb2baf3005ac137) mmap(&(0x7f0000000000/0xfff000)=nil, 0xfff000, 0x3, 0x32, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:23 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:23 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:23 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:24 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/snapshot\x00', 0x240000, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$ifreq_SIOCGIFINDEX_team(r1, 0x8933, &(0x7f0000000280)={'team0\x00', 0x0}) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f00000002c0)={'ip6tnl0\x00', r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) pause() lsetxattr(&(0x7f0000000180)='./file0\x00', &(0x7f0000000340)=@random={'osx.', 'team0\x00'}, &(0x7f0000000380)='keyring[!wlan1!%(wlan0vboxnet0posix_acl_access\x00', 0x2f, 0x2) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000240)=0x100, 0x130) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$TIOCSWINSZ(r0, 0x5414, &(0x7f00000003c0)={0x6, 0x5, 0x6, 0x4bd0}) 2018/05/02 09:53:24 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:24 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:24 executing program 6: r0 = syz_open_procfs(0x0, &(0x7f00000000c0)='net/udplite6\x00') getsockopt$inet_sctp_SCTP_GET_PEER_ADDRS(0xffffffffffffffff, 0x84, 0x6c, &(0x7f0000000240)=ANY=[@ANYRES32=0x0, @ANYBLOB="8f00000078211069044cefc609000000aa922a298b03724c2c0f0d749b405c5e849d62507be49e1ce2d9b5ad54b8e0692ae84f3c1127359c5543d9caaa3978fff7ace590c95c83e173540b3de7293a7fcc62e97894079f05057aee7ac2c2a1e593ba3b14ca82f27493a33fc8c874a0cbc235a17627a6d38f1189cc61105091dcbb5fa550fb57c65c01bd3da86df8d183821556"], &(0x7f00000003c0)=0x97) setsockopt$inet_sctp_SCTP_RTOINFO(r0, 0x84, 0x0, &(0x7f0000000400)={r1, 0x7ff, 0x8, 0x3}, 0x10) r2 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r2, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r3 = socket(0xa, 0x400000400007ffff, 0x7fffffffffff) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r3, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r2, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r3, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:24 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:24 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:24 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:24 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_COPY(r0, 0xc028aa03, &(0x7f0000000000)={&(0x7f0000010000/0x4000)=nil, 0x4000}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) [ 489.371059] FAULT_FLAG_ALLOW_RETRY missing 30 [ 489.375822] CPU: 1 PID: 30558 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 489.383437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 489.392783] ffff8801cd747850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 489.400828] ffff8801b935a780 ffff8801cd747a20 0000000000000000 ffff8801cd747a48 [ 489.408867] ffffffff81cb75eb 0000000000000dca ffff8801d4218908 ffff8801b935a88c [ 489.416908] Call Trace: [ 489.419492] [] dump_stack+0xc1/0x128 [ 489.424855] [] handle_userfault.cold.18+0x3e/0x51 [ 489.431346] [] ? debug_check_no_locks_freed+0x210/0x210 [ 489.438356] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 489.444754] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 489.451934] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 489.458771] [] ? handle_mm_fault+0x1267/0x28e0 [ 489.464990] [] ? handle_mm_fault+0x220f/0x28e0 [ 489.471214] [] handle_mm_fault+0x221d/0x28e0 [ 489.477264] [] ? vm_insert_mixed+0x200/0x200 [ 489.483311] [] __do_page_fault+0x5af/0xd50 [ 489.489185] [] ? mm_fault_error+0x2c0/0x2c0 [ 489.495140] [] ? exit_robust_list+0x220/0x220 [ 489.501264] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 489.507912] [] do_page_fault+0x27/0x30 [ 489.513429] [] page_fault+0x28/0x30 [ 489.518689] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 489.525513] [] ? SyS_pselect6+0x1be/0x540 [ 489.531299] [] ? SyS_select+0x1e0/0x1e0 [ 489.536911] [] ? SyS_futex+0x206/0x310 [ 489.542436] [] ? do_futex+0x1770/0x1770 [ 489.548053] [] ? security_file_ioctl+0x8f/0xc0 [ 489.554261] [] ? do_syscall_64+0x48/0x490 [ 489.560041] [] ? SyS_select+0x1e0/0x1e0 [ 489.565639] [] do_syscall_64+0x1a6/0x490 [ 489.571325] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:25 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) socketpair$ax25(0x3, 0x3, 0xfe, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$sock_FIOGETOWN(r3, 0x8903, &(0x7f0000000240)=0x0) lstat(&(0x7f0000000280)='./file0\x00', &(0x7f00000003c0)={0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$DRM_IOCTL_GET_CLIENT(r0, 0xc0286405, &(0x7f00000002c0)={0x9, 0x2, r4, 0x2, r5, 0x2b07b2bc, 0x0, 0x4}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:25 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:25 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:25 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:25 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) write$tun(r0, &(0x7f0000000400)={@void, @void, @ipv4={{0x16, 0x4, 0x4, 0x6, 0xc0, 0x67, 0x5, 0x1, 0x5c, 0x0, @broadcast=0xffffffff, @local={0xac, 0x14, 0x14, 0xaa}, {[@generic={0xcf, 0x9, "8e6e7b305f97d4"}, @ssrr={0x89, 0xf, 0x2, [@multicast2=0xe0000002, @loopback=0x7f000001, @remote={0xac, 0x14, 0x14, 0xbb}]}, @ra={0x94, 0x6, 0x5}, @generic={0x83, 0x2}, @lsrr={0x83, 0xf, 0x20, [@rand_addr=0xffffffffffffffc1, @remote={0xac, 0x14, 0x14, 0xbb}, @loopback=0x7f000001]}, @rr={0x7, 0x13, 0x1, [@broadcast=0xffffffff, @broadcast=0xffffffff, @rand_addr, @rand_addr=0x3]}]}}, @udp={0x4e21, 0x4e24, 0x68, 0x0, [@guehdr={0x2, 0xa00000000000000, 0x1, 0x4, 0x100, [0x0]}, @guehdr={0x2, 0xd1, 0x3, 0x3, 0x100, [0x80]}, @guehdr={0x1, 0x0, 0x81, 0xffff, 0x100}, @guehdr={0x2, 0x7, 0x42100000, 0x40, 0x0, [0x0]}], "97e49a82ed8c31785729c60451d4831f3d63b0eeb4a27dd1aeb5a3ea152ecabae748a3e0c0d313a013a889193a3f0bdb762d888c6edb73052758e7cd838343e59511f83a"}}}, 0xc0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = request_key(&(0x7f00000000c0)='id_legacy\x00', &(0x7f00000002c0)={0x73, 0x79, 0x7a, 0x2}, &(0x7f0000000340)='sit0\x00', 0x0) ioctl$sock_SIOCGPGRP(r0, 0x8904, &(0x7f00000004c0)) keyctl$describe(0x6, r3, &(0x7f00000003c0)=""/10, 0xa) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) r5 = getpid() perf_event_open(&(0x7f0000000240)={0x0, 0x70, 0x1000, 0x3, 0x3, 0xe7e, 0x0, 0x1ff, 0x80, 0x8, 0x8743, 0x7ff, 0x7, 0x8f, 0x3, 0x4, 0xffffffffffffffe1, 0x80000001, 0x5, 0xffffffffffff97c2, 0x5, 0x7, 0x1f000, 0x5, 0x6, 0x0, 0x2, 0x3, 0x6, 0x91, 0x2, 0x8, 0x7, 0x0, 0x9, 0x7fff, 0x10001, 0xd9c, 0x0, 0xdf93, 0x2, @perf_config_ext={0x800, 0x400}, 0x80, 0xb37f, 0xcd, 0x3, 0xffff, 0xffffffff, 0x9}, r5, 0x10, r2, 0x3) 2018/05/02 09:53:25 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:25 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ppoll(&(0x7f0000000000)=[{r0, 0x20}, {r0, 0x20}, {r0, 0x600}], 0x3, &(0x7f0000000040)={0x0, 0x1c9c380}, &(0x7f0000000080), 0x8) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) r1 = openat(0xffffffffffffff9c, &(0x7f00000000c0)='./file0\x00', 0x0, 0xe8) bind$ax25(r1, &(0x7f0000000100)={0x3, {"91fc423653adcc"}, 0xf97c}, 0x10) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:25 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) setsockopt$netrom_NETROM_IDLE(r0, 0x103, 0x7, &(0x7f00000000c0)=0x80000001, 0x4) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 490.641038] FAULT_FLAG_ALLOW_RETRY missing 30 [ 490.645734] CPU: 1 PID: 30606 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 490.653351] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 490.662698] ffff880197ac7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 490.670735] ffff8801d7764c00 ffff880197ac7a20 0000000000000000 ffff880197ac7a48 [ 490.678766] ffffffff81cb75eb 0000000000000dca ffff8801c5c4b908 ffff8801d7764d0c [ 490.686814] Call Trace: [ 490.689392] [] dump_stack+0xc1/0x128 [ 490.694753] [] handle_userfault.cold.18+0x3e/0x51 [ 490.701238] [] ? debug_check_no_locks_freed+0x210/0x210 [ 490.708242] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 490.714636] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 490.721813] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 490.728645] [] ? handle_mm_fault+0x1267/0x28e0 [ 490.734862] [] ? handle_mm_fault+0x220f/0x28e0 [ 490.741091] [] handle_mm_fault+0x221d/0x28e0 [ 490.747140] [] ? vm_insert_mixed+0x200/0x200 [ 490.753193] [] __do_page_fault+0x5af/0xd50 [ 490.759074] [] ? mm_fault_error+0x2c0/0x2c0 [ 490.765041] [] ? exit_robust_list+0x220/0x220 [ 490.771178] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 490.777843] [] do_page_fault+0x27/0x30 [ 490.783371] [] page_fault+0x28/0x30 [ 490.788644] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 490.795477] [] ? SyS_pselect6+0x1be/0x540 [ 490.801265] [] ? SyS_select+0x1e0/0x1e0 [ 490.806970] [] ? SyS_futex+0x206/0x310 [ 490.812498] [] ? do_futex+0x1770/0x1770 [ 490.818115] [] ? security_file_ioctl+0x8f/0xc0 [ 490.824341] [] ? do_syscall_64+0x48/0x490 [ 490.830131] [] ? SyS_select+0x1e0/0x1e0 [ 490.835745] [] do_syscall_64+0x1a6/0x490 [ 490.841450] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:26 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x80004, 0xffffffffffffffff) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:26 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:26 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:26 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) fcntl$getownex(r2, 0x10, &(0x7f00000000c0)={0x0, 0x0}) r7 = fcntl$getown(r1, 0x9) r8 = geteuid() getsockopt$inet6_IPV6_IPSEC_POLICY(r1, 0x29, 0x22, &(0x7f0000000640)={{{@in=@rand_addr, @in6=@loopback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@mcast2}, 0x0, @in6=@local}}, &(0x7f0000000240)=0xe8) getsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f0000000d80)={{{@in6=@dev, @in=@multicast2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in=@broadcast}, 0x0, @in6=@local}}, &(0x7f0000000280)=0xe8) sendmsg$netlink(r0, &(0x7f00000021c0)={0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f00000003c0)={0x244, 0x1b, 0x800, 0x70bd26, 0x25dfdbfd, "", [@typed={0x14, 0x5e, @ipv6=@ipv4={[], [0xff, 0xff], @remote={0xac, 0x14, 0x14, 0xbb}}}, @generic="14532a52b9c00f5e771b39efb32043754e725980fe98", @generic="9b60e198f4fce2410ec3a2ff000f0e1dc10eafd60832a7ca8644a851ffa5f440c5b140fa661ea57cf5cf67dd31af36f3234b56d5785fd4df33f8b9d4a2d5e1ba4aaca22d972bbed609bb4c48b3e8751c458083cc00025d141b5b0343628f6c9089d7968663cec437c06622dd97a021", @generic="254e9b6f71", @generic="d31f896eb3e5faa1dc02f22197ac822f1afecd2745cec0df97679b125845f4d210957f99b3bfc77cc37f6bdf1496618c1995eb42ba4e8f3b6b4cbeeb07fee1e6ff7ba9220f2a3375d9cec2a9e2ae68f17d170fba59f071cbdb4b222eab101b866abcc255cc4247b9c1c3b311eebc1647c8c0c40a5689fe4cd76d5580e06ba2c1a5821957e41843a0c729f364984be61d26a3bf8d1a9bbccf42ed5afcc90e59e983d308be42a4", @typed={0x8, 0x8d, @pid=r6}, @nested={0xe8, 0x20, [@typed={0xc, 0x36, @str='vmnet0\x00'}, @generic="e8603ddf9ecb587e", @generic="5af9941547cc34ccbe902b709c187f736cebca3ae30aecddba9221f7313b9bf1d94557ab84ad0f0cf8bfb6e21063c7e86efb42a729224033c09d4658e39104a3809ad853994c27db16e0aa3ce076c09dc6f8f0dc86cccd97028b1d77464f40bc13bdf06ff179509a1779d350a2c2a7d28f4a36b7b34db019da9e1f0f37f460588a14e2b2d73f4e5f8f07c4bd08551e249f925963a3f8c5626e31834527a4d2d65b00dcbaea3962f372ff98fd1914733c27409171c206f22bf496cda10d5b4f225cc7a12d9929493d3a3e1828c3c579"]}]}, 0x244}, {&(0x7f0000000740)={0x3a4, 0xfff, 0x0, 0x70bd2d, 0x25dfdbff, "", [@generic="61562c1b57c327a7695d68d9a24278f5e76cc6d90bea80553ac2e0d91b210c80de68175524f6a23cfe665ab1b445697f19612c90eb240553fb5f0e17c79919cda010387af7da82876bcc9feadaca386abe50b68c53cc4fd75e7f7350142fdab78bf5b71ed41d1828de73f4c598e3ba222c32897ab41d533166c6c3ddde692dd85c35a81e7417c8ec0a89b3a1f775e13041432f3159904fa23a724ba23f52f22d7fd0e3a3926fa6e971e74cb99019eb9ebd525221df6777314282c8e4", @typed={0x8, 0x27, @pid=r7}, @nested={0xa4, 0x14, [@typed={0x78, 0x1c, @binary="746b6be54f33ae2d823cdd789320d2e1bf53de0821e5acaf953fdefdf41cb1a71792372c983aa464c1d014456f70bc1fec1a0b02a94ef7c8e63883020883a84dd7db5203d039c39ef4153f210d5385c5e58765ca52b0b932964a17c87d01e820571cd68af4f914c3eb1183a12e0cee7e016aa1d2"}, @typed={0x14, 0x5f, @ipv6=@remote={0xfe, 0x80, [], 0xbb}}, @typed={0xc, 0x23, @u64=0x4}, @typed={0x8, 0x30, @u32=0x7a6}]}, @generic="85a1fa0dc387bef5197a5b071db4e12dcb8323c1acc16bc404be5e4f2b83ea58539ac3103f81ca2e3343f672c857237defb94bbcc91b232c2f50b6b196ae2fd9eeadfe79bc5ffa0f3413fd4d7b098440e646f19e99b2caa03b8bea1f6794ee1d1298b5b053f4e57d2af3e2fd", @generic="8f5346d3047330a35788cd5121cf37dc371998442d84614e48897e86f13fbbb7df56139b8a91cf29b24e18a1e810a5b73176ae4ae1b1d9a3b6aa46ea42ff252fa1acf28a111a6a2b94ff3d27a06618392e4e249100eb342e398533063db6362d4cab25d7a3496e6d", @generic="7f4c67b0bc86cf16256bc809acb7a3dc2e175c88d606a8f50a44f15703f3136914dd9dc8752ff58d45e73d13ba99d6479770883a8858918af5f66dd19f858e3247fc17562ed8084e0b8e8e4bab458e3d281da0e1103e25a372218fb3d1df5e0dfb82688075f89a08e12930bee1bc10ea72e3e41f28e3f641de64407f3dd87861eb5a822428f857af33fb274d54c1161cbb2c6396c548ad623af0229e9624d01d2161cd5762fafff93045ebbfe93370736b0e732258bc9e90c986af4d462189c43c9f068d28ad35dd347a04", @typed={0x70, 0x1b, @binary="9ece4b631fb7f70f36401da5c7f8b7392716215df6f7699ddac181790519fa390c0f0d7870090c1adbe91a73e53aaa52def4c3b80ecfe1a81218f99b9391d62079a5bc31316d7257a3808915b219640b7e537fd15c47c290c692087e53feab1bfaf4db14abb290c374cb"}, @nested={0x14, 0xf, [@typed={0x8, 0x12, @fd=r5}, @typed={0x8, 0x40, @uid=r8}]}, @typed={0x8, 0x8d, @uid=r9}]}, 0x3a4}, {&(0x7f0000000b00)={0x264, 0x38, 0x2, 0x70bd28, 0x25dfdbff, "", [@typed={0x80, 0x2b, @binary="71edcdc968c690eab9f1d452b34bb6fa610fec1983272502bca3fb466a9d0a86e6a95c7a348711b8a98bce0ef4267bcd2dcf308498b5fd9c940d987d3783fcb7139c753929231b198760478c6ee925d0279ac126a712a3493cf63152a5533bfcd15855a4596f0bb2a0f289a9f28f4d4addf994f62ab9e1ab3948"}, @typed={0x14, 0x75, @ipv6}, @typed={0xe4, 0x69, @binary="91ebc672569003baa9e46c38d96a1f86dc00dfe0ca48a8d1a948e56652e796508cef3aee14027ec8c7aa7a5acc33337d7481b60d5b4fecacd58872efa1487bfd73c4404f5bb997883be07417a375ed456b1dadeead25076bd89abb63aa1e377ae8bc728b8404889ad07f5f3d3c59418809fe2b68d8a096a9920dc9c18c14bd5492032d43cd2bd76348f96a2fe96e5b9575e6b943cbfd04f60a0a22e486f28848024a062382d5db1fe194dcd18426be2721a21a819146a154e161335a5646e071741e56a9c145574b85e870ea5a47869f2f109010ce329a1320176b95b3d0"}, @generic="ea491779df68960e1240c8a0bf86260a52d926065ed45fb90026a4e7d7e38b0f55da1a47691e9033c3cc11701bd8ced58955644d17117dbfc2dea545e97897f6e50dfabbb3621bb7e4f3384546ab4f5e5bd1e2002cfc195c58819bd372f064aee2f30db1dcd9015eeeed7d6ef5c84d59ba87d016edc215dc398b9011985101f11eae71627992991b119ff7d42307de46691d3d3ecd7ecb656ec6c25a9462fa356ba2d777565fc293aca869477f43903dde6ad37141891a0fea6dea8feaf23b30a8fb08029f641577e55cae920ce3d7e9ee497b7ad4a94428f0f9"]}, 0x264}, {&(0x7f0000000e80)={0x1304, 0x3c, 0x400, 0x70bd28, 0x25dfdbfd, "", [@nested={0x188, 0x1c, [@typed={0xc, 0x90, @u64=0x3}, @typed={0x8, 0x43, @ipv4=@loopback=0x7f000001}, @typed={0x8, 0x38, @uid=r10}, @generic="df05fe9ffc24178af42ab5c7fcb90ff7ea3cb393c83d629e15236ecd57d67de137d5f9993b5466d82be6ddc596a18a32fb628d47b9f31c0f9c47a4163637f334dfd35a39202ddd6019a76bf9487264fb301e2d02d0fe78b90a4a3be20078f2df6b7393ce80583240bc964576e0c892f68e11d77ceb78fd276402354b059c49b1c27db6547d2dc58d09cac4fa840211607c305e59de96a82e090b3daf3349", @generic="87cb945c7acd80026e7ac3882d35860689ab2d31460ccc70ba4f1b04523b37328d4a561929d84f4b8c54e0a06ec4b398a3072352d3eb7b2e4964ca38c2415963657037fce4167b6dcd480f2b88213495bc07a30eb9b3514bf3f63330a964040290cffd99ccb394abbc12221aa57e5b247e340e300df24924084bcc33926ce0da59179edddfb74107ac31800e20763c675edf4b73625bc4ad8a9fdeeb3a8961158772e322d33a862e2d7b68e248a80e0daea9e38f847af57297672ed8edb74d74c715130fcbba2c1c2602"]}, @nested={0x1c, 0x81, [@typed={0xc, 0x79, @str='sit0\x00'}, @typed={0xc, 0x75, @u64=0xfffffffffffffff7}]}, @generic="3f7a10d671dc4e43b34f1f", @nested={0x105c, 0x73, [@typed={0x1004, 0x43, @binary="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@generic="bbaa3fbf851ff75a9382590c494420da6ea3086340", @generic="34521d6317ca74d1c873af9058fd31c3b8cc87467f86bae8743d310ff7763ff0268e320a0284ac7ce5b2264093a8db9b2a3db4617e45d1e88cfba9b8"]}, @generic="ee5285928a40de5abb6b125fb1b1294860f978369e199051a293d48dfa37c922c85b74855e52e05669c89984ede9bdf68953a6c2a61eab29c4148af8644231318affdd09d3dace258e2b7c49df1309e536576238fe78d325cae708d9f2d70be577f840e01447bf3b5a5387811d64b42134048e5e1c7c7bf19f733c", @typed={0x8, 0x20, @ipv4=@remote={0xac, 0x14, 0x14, 0xbb}}, @typed={0x8, 0x91, @ipv4=@local={0xac, 0x14, 0x14, 0xaa}}, @generic="9100bed2397097cc1e1c536dae4e3f28368069ccb3430e944b0d445ec464c78ee7e33129f2413764b786183c4b985e861702831c66e2961611c4293a5543", @nested={0x1c, 0x2b, [@generic="18833d35f74ce541385bb9269bd2652a8165fb79e6"]}, @typed={0x4, 0x22}]}, 0x1304}], 0x4, &(0x7f0000000340)=[@rights={0x18, 0x1, 0x1, [r4]}], 0x18, 0x80}, 0x48010) 2018/05/02 09:53:27 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:27 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:27 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x3) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$inet_sctp6_SCTP_RECVRCVINFO(r0, 0x84, 0x20, &(0x7f00000000c0), &(0x7f0000000240)=0x4) getsockopt$inet_sctp_SCTP_PR_ASSOC_STATUS(r0, 0x84, 0x73, &(0x7f0000000280)={0x0, 0x2, 0x20, 0x939e, 0x3}, &(0x7f00000002c0)=0x18) getsockopt$inet_sctp_SCTP_PR_ASSOC_STATUS(r1, 0x84, 0x73, &(0x7f0000000300)={r3, 0x9, 0x10, 0x7fffffff, 0x3}, &(0x7f00000003c0)=0x18) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x8000000000002, 0x0, &(0x7f0000000440)) 2018/05/02 09:53:27 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) r1 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000040)='/dev/hwrng\x00', 0x14000, 0x0) ioctl$LOOP_SET_BLOCK_SIZE(r1, 0x4c09, 0x3ff) clock_getres(0x5, &(0x7f0000000000)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:27 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:27 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) select(0x40, &(0x7f00000000c0)={0x8, 0x3ff, 0x1, 0x0, 0x40, 0x8000, 0x3, 0x8001}, &(0x7f0000000240)={0x5, 0x7365, 0x4, 0x0, 0x2, 0x3, 0x4, 0x3}, &(0x7f0000000280)={0xff, 0x2, 0xc1a6, 0x0, 0x6, 0x5, 0x10000, 0x1}, &(0x7f00000002c0)={0x77359400}) sendmmsg$inet_sctp(r1, &(0x7f0000000340)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x1, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:28 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 492.363421] FAULT_FLAG_ALLOW_RETRY missing 30 [ 492.368122] CPU: 0 PID: 30644 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 492.375737] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 492.385089] ffff8801cba97850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 492.393091] ffff8801d7764a80 ffff8801cba97a20 0000000000000000 ffff8801cba97a48 [ 492.401077] ffffffff81cb75eb 0000000000000dca ffff8801cf0a8908 ffff8801d7764b8c [ 492.409065] Call Trace: [ 492.411633] [] dump_stack+0xc1/0x128 [ 492.416975] [] handle_userfault.cold.18+0x3e/0x51 [ 492.423444] [] ? debug_check_no_locks_freed+0x210/0x210 [ 492.430433] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 492.436825] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 492.443985] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 492.450798] [] ? handle_mm_fault+0x1267/0x28e0 [ 492.457105] [] ? handle_mm_fault+0x220f/0x28e0 [ 492.463311] [] handle_mm_fault+0x221d/0x28e0 [ 492.469343] [] ? vm_insert_mixed+0x200/0x200 [ 492.475376] [] __do_page_fault+0x5af/0xd50 [ 492.481240] [] ? mm_fault_error+0x2c0/0x2c0 [ 492.487185] [] ? exit_robust_list+0x220/0x220 [ 492.493313] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 492.499952] [] do_page_fault+0x27/0x30 [ 492.505464] [] page_fault+0x28/0x30 [ 492.510714] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 492.517528] [] ? SyS_pselect6+0x1be/0x540 [ 492.523301] [] ? SyS_select+0x1e0/0x1e0 [ 492.528902] [] ? SyS_futex+0x206/0x310 [ 492.534418] [] ? do_futex+0x1770/0x1770 [ 492.540024] [] ? security_file_ioctl+0x8f/0xc0 [ 492.546237] [] ? do_syscall_64+0x48/0x490 [ 492.552008] [] ? SyS_select+0x1e0/0x1e0 [ 492.557606] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:28 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socket$unix(0x1, 0x5, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 492.563293] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:28 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:28 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:28 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$IOC_PR_PREEMPT_ABORT(r0, 0x401870cc, &(0x7f00000000c0)={0x14, 0x3f, 0x8d39, 0xffffffffffffff7f}) 2018/05/02 09:53:28 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0xfffffffffffffffe, &(0x7f0000000440)="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", &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) r1 = syz_open_procfs(0x0, &(0x7f0000000000)='fdinfo/4\x00') ioctl$KDGKBTYPE(r1, 0x4b33, &(0x7f0000000080)) 2018/05/02 09:53:29 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 494.067055] FAULT_FLAG_ALLOW_RETRY missing 30 [ 494.071753] CPU: 1 PID: 30681 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 494.079361] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 494.088796] ffff8801cba97850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 494.096834] ffff8801d7765380 ffff8801cba97a20 0000000000000000 ffff8801cba97a48 [ 494.104860] ffffffff81cb75eb 0000000000000dca ffff880188d98908 ffff8801d776548c [ 494.113351] Call Trace: [ 494.115915] [] dump_stack+0xc1/0x128 [ 494.121253] [] handle_userfault.cold.18+0x3e/0x51 [ 494.127753] [] ? debug_check_no_locks_freed+0x210/0x210 [ 494.134747] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 494.141131] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 494.148302] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 494.155113] [] ? handle_mm_fault+0x1267/0x28e0 [ 494.161317] [] ? handle_mm_fault+0x220f/0x28e0 [ 494.167519] [] handle_mm_fault+0x221d/0x28e0 [ 494.173557] [] ? vm_insert_mixed+0x200/0x200 [ 494.179587] [] __do_page_fault+0x5af/0xd50 [ 494.185463] [] ? mm_fault_error+0x2c0/0x2c0 [ 494.191419] [] ? exit_robust_list+0x220/0x220 [ 494.197534] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 494.204169] [] do_page_fault+0x27/0x30 [ 494.209676] [] page_fault+0x28/0x30 [ 494.214931] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 494.221741] [] ? SyS_pselect6+0x1be/0x540 [ 494.227511] [] ? SyS_select+0x1e0/0x1e0 [ 494.233110] [] ? SyS_futex+0x206/0x310 [ 494.238622] [] ? do_futex+0x1770/0x1770 [ 494.244221] [] ? security_file_ioctl+0x8f/0xc0 [ 494.250445] [] ? do_syscall_64+0x48/0x490 [ 494.256214] [] ? SyS_select+0x1e0/0x1e0 [ 494.261806] [] do_syscall_64+0x1a6/0x490 [ 494.267491] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:30 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) epoll_pwait(r0, &(0x7f00000000c0)=[{}, {}, {}, {}, {}], 0x5, 0x2, &(0x7f0000000240)={0xffffffffffffffff}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:30 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:30 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) r1 = add_key$user(&(0x7f00000000c0)='user\x00', &(0x7f0000000240)={0x73, 0x79, 0x7a, 0x3}, &(0x7f00000003c0)="388f234e9ded9414a39c765193a2bbb234eabb4e9312d5803e64e65cf9c6d611622b7c14543fbcad5ac1c8954531032fdd8a1fed71b8222806bdd8058b2eafb578c84cb2665b27c419918bc3d0db29d948a032f329456df89d8ee4a5d6026be78ba9a1d82c3219496f930938e67afb028a0043f627acd0d162b9b03bb2a6e1aa563b8230d6bc2691129eb9b27ec9cac8f360e996f121e0ad12f7e4b75d7e66f50923c0fd2898951d14e073dd743225bc8717d3a6277415d25f735f", 0xbb, 0xfffffffffffffffd) getsockopt$inet6_IPV6_XFRM_POLICY(r0, 0x29, 0x23, &(0x7f0000000480)={{{@in6=@local, @in6=@ipv4={[], [], @local}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@loopback}, 0x0, @in6=@mcast1}}, &(0x7f0000000280)=0xe8) getgroups(0x5, &(0x7f00000002c0)=[0xffffffffffffffff, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0]) keyctl$chown(0x4, r1, r2, r3) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r4 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r4, &(0x7f0000000200)={0x11, 0x0, r5, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r4, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r4, &(0x7f0000871fc8), 0x1, 0xc000) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:30 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f00000002c0)='/dev/snapshot\x00', 0x2601fc, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) openat$selinux_commit_pending_bools(0xffffffffffffff9c, &(0x7f00000000c0)='/selinux/commit_pending_bools\x00', 0x1, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$inet_IP_IPSEC_POLICY(r1, 0x0, 0x10, &(0x7f00000003c0)={{{@in6=@ipv4={[], [], @broadcast}, @in=@multicast1}}, {{@in6=@dev}, 0x0, @in=@local}}, &(0x7f0000000240)=0xe8) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$sock_ifreq(r0, 0x89ff, &(0x7f0000000280)={'veth0_to_team\x00', @ifru_hwaddr=@local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}}) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$void(r0, 0x5450) 2018/05/02 09:53:30 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:30 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:30 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) r1 = openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000000)='/dev/pktcdvd/control\x00', 0x100, 0x0) getsockopt$inet_sctp6_SCTP_PR_ASSOC_STATUS(r1, 0x84, 0x73, &(0x7f0000000040)={0x0, 0x7, 0x10, 0x5, 0x81}, &(0x7f0000000080)=0x18) setsockopt$inet_sctp_SCTP_DELAYED_SACK(r1, 0x84, 0x10, &(0x7f00000000c0)=@sack_info={r2, 0xfffffffffffffffe, 0xffffffff7fffffff}, 0xc) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:30 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 495.226608] FAULT_FLAG_ALLOW_RETRY missing 30 [ 495.231275] CPU: 1 PID: 30705 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 495.238891] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 495.248239] ffff880192ac7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 495.256278] ffff8801b935aa80 ffff880192ac7a20 0000000000000000 ffff880192ac7a48 [ 495.264323] ffffffff81cb75eb 0000000000000dca ffff8801ca5a6908 ffff8801b935ab8c [ 495.272352] Call Trace: [ 495.274930] [] dump_stack+0xc1/0x128 [ 495.280289] [] handle_userfault.cold.18+0x3e/0x51 [ 495.286775] [] ? debug_check_no_locks_freed+0x210/0x210 [ 495.293779] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 495.300179] [] ? preempt_schedule+0x25/0x30 [ 495.306142] [] ? ___preempt_schedule+0x16/0x18 [ 495.312365] [] ? handle_mm_fault+0x1267/0x28e0 [ 495.318589] [] ? handle_mm_fault+0x220f/0x28e0 [ 495.324814] [] handle_mm_fault+0x221d/0x28e0 [ 495.330865] [] ? vm_insert_mixed+0x200/0x200 [ 495.336918] [] __do_page_fault+0x5af/0xd50 [ 495.342799] [] ? mm_fault_error+0x2c0/0x2c0 [ 495.348766] [] ? exit_robust_list+0x220/0x220 [ 495.354901] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 495.361559] [] do_page_fault+0x27/0x30 [ 495.367086] [] page_fault+0x28/0x30 [ 495.372355] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 495.379186] [] ? SyS_pselect6+0x1be/0x540 [ 495.384975] [] ? SyS_select+0x1e0/0x1e0 [ 495.390595] [] ? SyS_futex+0x206/0x310 [ 495.396123] [] ? do_futex+0x1770/0x1770 [ 495.401737] [] ? security_file_ioctl+0x8f/0xc0 [ 495.407956] [] ? do_syscall_64+0x48/0x490 [ 495.413742] [] ? SyS_select+0x1e0/0x1e0 [ 495.419354] [] do_syscall_64+0x1a6/0x490 [ 495.425057] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:31 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) accept4$packet(r1, &(0x7f0000000240), &(0x7f0000000280)=0x14, 0x80000) getsockopt$inet_mreqn(r1, 0x0, 0x23, &(0x7f00000002c0)={@broadcast, @local}, &(0x7f0000000340)=0xc) getsockopt$inet_IP_XFRM_POLICY(r0, 0x0, 0x11, &(0x7f0000000400)={{{@in6=@loopback, @in=@rand_addr, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@remote}, 0x0, @in=@dev}}, &(0x7f0000000500)=0xe8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000540)={'teql0\x00', r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) r5 = request_key(&(0x7f00000000c0)='keyring\x00', &(0x7f00000003c0)={0x73, 0x79, 0x7a, 0x1}, &(0x7f0000000580)='+\x00', 0xfffffffffffffffc) keyctl$get_persistent(0x16, r3, r5) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:31 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:31 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) socket$packet(0x11, 0x3, 0x300) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f00000000c0)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:31 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:31 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:31 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:31 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) socketpair$inet6_dccp(0xa, 0x6, 0x0, &(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) clock_gettime(0x0, &(0x7f0000000080)={0x0, 0x0}) setsockopt$sock_timeval(r1, 0x1, 0x14, &(0x7f00000000c0)={r2, r3/1000+30000}, 0x10) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x89, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000000100), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000000140), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) ioctl$SG_GET_NUM_WAITING(r0, 0x227d, &(0x7f0000000000)) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:31 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) fcntl$notify(r0, 0x402, 0x10) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$RNDCLEARPOOL(r1, 0x5206, &(0x7f00000000c0)=0xa07) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:31 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x7, 0x4000000000080002, 0x4000000000000) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f00000000c0)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:31 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$TIOCGSOFTCAR(r0, 0x5419, &(0x7f00000000c0)) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 496.556046] FAULT_FLAG_ALLOW_RETRY missing 30 [ 496.560782] CPU: 1 PID: 30747 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 496.568741] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 496.578088] ffff8801b9607850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 496.586086] ffff8801b935af00 ffff8801b9607a20 0000000000000000 ffff8801b9607a48 [ 496.594079] ffffffff81cb75eb 0000000000000dca ffff880191986908 ffff8801b935b00c [ 496.602068] Call Trace: [ 496.604637] [] dump_stack+0xc1/0x128 [ 496.609977] [] handle_userfault.cold.18+0x3e/0x51 [ 496.616445] [] ? debug_check_no_locks_freed+0x210/0x210 [ 496.623433] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 496.629814] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 496.636976] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 496.643791] [] ? handle_mm_fault+0x1267/0x28e0 [ 496.649995] [] ? handle_mm_fault+0x220f/0x28e0 [ 496.656203] [] handle_mm_fault+0x221d/0x28e0 [ 496.662236] [] ? vm_insert_mixed+0x200/0x200 [ 496.668278] [] __do_page_fault+0x5af/0xd50 [ 496.674139] [] ? mm_fault_error+0x2c0/0x2c0 [ 496.680089] [] ? exit_robust_list+0x220/0x220 [ 496.686207] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 496.692845] [] do_page_fault+0x27/0x30 [ 496.698357] [] page_fault+0x28/0x30 [ 496.703610] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 496.710427] [] ? SyS_pselect6+0x1be/0x540 [ 496.716198] [] ? SyS_select+0x1e0/0x1e0 [ 496.721795] [] ? SyS_futex+0x206/0x310 [ 496.727312] [] ? do_futex+0x1770/0x1770 [ 496.732909] [] ? security_file_ioctl+0x8f/0xc0 [ 496.739115] [] ? do_syscall_64+0x48/0x490 [ 496.744886] [] ? SyS_select+0x1e0/0x1e0 [ 496.750485] [] do_syscall_64+0x1a6/0x490 [ 496.756169] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:33 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:33 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:33 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:33 executing program 3: mmap(&(0x7f0000014000/0x4000)=nil, 0x4000, 0x1, 0x100000032, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) openat$selinux_avc_hash_stats(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/avc/hash_stats\x00', 0x0, 0x0) userfaultfd(0x80800) openat$rfkill(0xffffffffffffff9c, &(0x7f0000000000)='/dev/rfkill\x00', 0x400380, 0x0) 2018/05/02 09:53:33 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:34 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) remap_file_pages(&(0x7f0000ffb000/0x2000)=nil, 0x2000, 0xe, 0x99, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x8000e, 0xce) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x400000050d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8000000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r2 = gettid() ptrace$pokeuser(0x6, r2, 0x1, 0x6) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) mremap(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0x2000, 0x0, &(0x7f0000ffb000/0x2000)=nil) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x1e5) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:34 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000080)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000240)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:34 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) epoll_create1(0x80000) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) getsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER_VALUE(r1, 0x84, 0x7c, &(0x7f00000000c0)={0x0, 0xffff, 0x4}, &(0x7f0000000240)=0x8) setsockopt$inet_sctp_SCTP_RESET_ASSOC(r0, 0x84, 0x78, &(0x7f0000000280)=r3, 0x4) 2018/05/02 09:53:34 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) ioctl$sock_ipx_SIOCAIPXITFCRT(r0, 0x89e0, &(0x7f0000000240)=0x3) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x4, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x80000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x0, 0x10000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000280)={'sit0\x00', 0x0}) setsockopt$inet_sctp_SCTP_AUTO_ASCONF(r1, 0x84, 0x1e, &(0x7f00000000c0)=0x9, 0x4) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:34 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = openat$hwrng(0xffffffffffffff9c, &(0x7f0000000000)='/dev/hwrng\x00', 0x88002, 0x0) r1 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000080)='IPVS\x00') setsockopt$sock_timeval(r0, 0x1, 0x14, &(0x7f0000000380)={0x77359400}, 0x10) bind$inet(r0, &(0x7f0000000340)={0x2, 0x4e22, @multicast1=0xe0000001}, 0x10) sendmsg$IPVS_CMD_GET_CONFIG(r0, &(0x7f0000000100)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x49600}, 0xc, &(0x7f00000000c0)={&(0x7f0000000440)={0x210, r1, 0x0, 0x70bd27, 0x25dfdbfc, {0xd}, [@IPVS_CMD_ATTR_DEST={0x1c, 0x2, [@IPVS_DEST_ATTR_U_THRESH={0x8, 0x5, 0x80000000}, @IPVS_DEST_ATTR_PERSIST_CONNS={0x8, 0x9, 0xfd3}, @IPVS_DEST_ATTR_ADDR_FAMILY={0x8, 0xb, 0xa}]}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x7}, @IPVS_CMD_ATTR_DAEMON={0x20, 0x3, [@IPVS_DAEMON_ATTR_MCAST_TTL={0x8, 0x8, 0x100}, @IPVS_DAEMON_ATTR_MCAST_GROUP6={0x14, 0x6, @mcast1={0xff, 0x1, [], 0x1}}]}, @IPVS_CMD_ATTR_DAEMON={0x30, 0x3, [@IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x8, 0x4}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x1}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1, 0x1}, @IPVS_DAEMON_ATTR_MCAST_IFN={0x14, 0x2, 'vcan0\x00'}]}, @IPVS_CMD_ATTR_DAEMON={0x30, 0x3, [@IPVS_DAEMON_ATTR_STATE={0x8, 0x1}, @IPVS_DAEMON_ATTR_MCAST_PORT={0x8, 0x7, 0x4e23}, @IPVS_DAEMON_ATTR_STATE={0x8, 0x1}, @IPVS_DAEMON_ATTR_MCAST_IFN={0x14, 0x2, 'veth1_to_team\x00'}]}, @IPVS_CMD_ATTR_DEST={0x70, 0x2, [@IPVS_DEST_ATTR_ADDR={0x14, 0x1, @ipv4=@multicast2=0xe0000002}, @IPVS_DEST_ATTR_INACT_CONNS={0x8, 0x8, 0x1f}, @IPVS_DEST_ATTR_PERSIST_CONNS={0x8, 0x9, 0x4}, @IPVS_DEST_ATTR_INACT_CONNS={0x8, 0x8, 0x97b}, @IPVS_DEST_ATTR_ADDR={0x14, 0x1}, @IPVS_DEST_ATTR_PORT={0x8, 0x2, 0x4e20}, @IPVS_DEST_ATTR_U_THRESH={0x8, 0x5}, @IPVS_DEST_ATTR_WEIGHT={0x8, 0x4, 0x6}, @IPVS_DEST_ATTR_ADDR={0x14, 0x1, @ipv6=@dev={0xfe, 0x80, [], 0x11}}]}, @IPVS_CMD_ATTR_DEST={0x1c, 0x2, [@IPVS_DEST_ATTR_FWD_METHOD={0x8, 0x3}, @IPVS_DEST_ATTR_FWD_METHOD={0x8, 0x3}, @IPVS_DEST_ATTR_INACT_CONNS={0x8, 0x8, 0x1}]}, @IPVS_CMD_ATTR_DEST={0x58, 0x2, [@IPVS_DEST_ATTR_ADDR={0x14, 0x1, @ipv6=@ipv4={[], [0xff, 0xff], @broadcast=0xffffffff}}, @IPVS_DEST_ATTR_WEIGHT={0x8, 0x4, 0x45}, @IPVS_DEST_ATTR_PORT={0x8, 0x2, 0x4e23}, @IPVS_DEST_ATTR_L_THRESH={0x8, 0x6, 0x80000001}, @IPVS_DEST_ATTR_L_THRESH={0x8, 0x6, 0x10001}, @IPVS_DEST_ATTR_ACTIVE_CONNS={0x8, 0x7, 0xfffffffffffffffc}, @IPVS_DEST_ATTR_U_THRESH={0x8, 0x5, 0x200000000}, @IPVS_DEST_ATTR_PERSIST_CONNS={0x8, 0x9, 0x3}, @IPVS_DEST_ATTR_U_THRESH={0x8, 0x5, 0x2}]}, @IPVS_CMD_ATTR_SERVICE={0x58, 0x1, [@IPVS_SVC_ATTR_AF={0x8, 0x1, 0xa}, @IPVS_SVC_ATTR_FWMARK={0x8, 0x5, 0x3}, @IPVS_SVC_ATTR_FWMARK={0x8, 0x5, 0x1}, @IPVS_SVC_ATTR_SCHED_NAME={0xc, 0x6, 'lblc\x00'}, @IPVS_SVC_ATTR_TIMEOUT={0x8, 0x8}, @IPVS_SVC_ATTR_AF={0x8, 0x1, 0x2}, @IPVS_SVC_ATTR_AF={0x8, 0x1, 0x2}, @IPVS_SVC_ATTR_PORT={0x8, 0x4, 0x4e21}, @IPVS_SVC_ATTR_SCHED_NAME={0x8, 0x6, 'wlc\x00'}, @IPVS_SVC_ATTR_SCHED_NAME={0x8, 0x6, 'fo\x00'}]}, @IPVS_CMD_ATTR_DEST={0x1c, 0x2, [@IPVS_DEST_ATTR_ADDR_FAMILY={0x8, 0xb, 0x2}, @IPVS_DEST_ATTR_U_THRESH={0x8, 0x5, 0x8740}, @IPVS_DEST_ATTR_PERSIST_CONNS={0x8, 0x9, 0xfffffffffffffffb}]}]}, 0x210}, 0x1, 0x0, 0x0, 0x8000}, 0x8010) r2 = userfaultfd(0x0) ioctl$UFFDIO_API(r2, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r2, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000140)="d5668f010638a164b9f3f6fdc36b508ed7d7444a4874d244808eb77f5bf49492c34f2437f66cdf7fb1f678365c20b20a38d22627c29289782e5c96099d2dd716d83ec715c86f606c2baf9221260d2bf47ad105318e64c34bcf5f38fbd16c22c7", &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) set_robust_list(&(0x7f0000000300)={&(0x7f0000000240)={&(0x7f0000000200)}, 0x2}, 0x18) 2018/05/02 09:53:34 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_netrom_TIOCOUTQ(r0, 0x5411, &(0x7f00000000c0)) perf_event_open(&(0x7f0000000040)={0xfffffffffffffffd, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) setsockopt$inet6_MCAST_JOIN_GROUP(r1, 0x29, 0x2a, &(0x7f0000000240)={0x1, {{0xa, 0x4e21, 0x7, @loopback={0x0, 0x1}, 0x3}}}, 0x88) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) getsockopt$inet_tcp_int(r0, 0x6, 0x4, &(0x7f0000000340), &(0x7f00000004c0)=0x4) r3 = getuid() mlock2(&(0x7f0000ffb000/0x3000)=nil, 0x3000, 0x1) setsockopt$inet_IP_IPSEC_POLICY(r1, 0x0, 0x10, &(0x7f00000003c0)={{{@in=@broadcast=0xffffffff, @in6, 0x4e23, 0x5, 0x4e22, 0x8, 0xa, 0xa0, 0x80, 0xff, r2, r3}, {0x3, 0x3f, 0x1, 0x9, 0x9, 0x4f18d599, 0xffffffff}, {0x2, 0x2, 0x1}, 0x9, 0x6e6bb7, 0x2, 0x1, 0x1, 0x2}, {{@in6=@remote={0xfe, 0x80, [], 0xbb}, 0x4d6, 0xff}, 0xa, @in6=@loopback={0x0, 0x1}, 0x3504, 0x3, 0x0, 0x1, 0x1000, 0xee1, 0x9}}, 0xe8) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:34 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) recvmmsg(r1, &(0x7f0000000340)=[{{0x0, 0x0, &(0x7f00000002c0)=[{&(0x7f00000003c0)=""/4096, 0x1000}, {&(0x7f00000000c0)}, {&(0x7f0000000240)=""/63, 0x3f}, {&(0x7f0000000280)=""/42, 0x2a}], 0x4, 0x0, 0x0, 0x5}, 0xffffffffffffffc0}], 0x1, 0x40002121, &(0x7f00000013c0)={0x77359400}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 499.560239] FAULT_FLAG_ALLOW_RETRY missing 30 [ 499.564801] CPU: 1 PID: 30812 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 499.572412] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 499.581753] ffff8801c6faf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 499.589748] ffff8801b935b080 ffff8801c6fafa20 0000000000000000 ffff8801c6fafa48 [ 499.597746] ffffffff81cb75eb 0000000000000dca ffff8801d92de908 ffff8801b935b18c [ 499.605728] Call Trace: [ 499.608291] [] dump_stack+0xc1/0x128 [ 499.613632] [] handle_userfault.cold.18+0x3e/0x51 [ 499.620101] [] ? debug_check_no_locks_freed+0x210/0x210 [ 499.627090] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 499.633477] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 499.640638] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 499.647449] [] ? handle_mm_fault+0x1267/0x28e0 [ 499.653652] [] ? handle_mm_fault+0x220f/0x28e0 [ 499.659857] [] handle_mm_fault+0x221d/0x28e0 [ 499.665887] [] ? vm_insert_mixed+0x200/0x200 [ 499.672181] [] __do_page_fault+0x5af/0xd50 [ 499.678041] [] ? mm_fault_error+0x2c0/0x2c0 [ 499.683987] [] ? exit_robust_list+0x220/0x220 [ 499.690112] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 499.696751] [] do_page_fault+0x27/0x30 [ 499.702265] [] page_fault+0x28/0x30 [ 499.707515] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 499.714331] [] ? SyS_pselect6+0x1be/0x540 [ 499.720099] [] ? SyS_select+0x1e0/0x1e0 [ 499.725694] [] ? SyS_futex+0x206/0x310 [ 499.731201] [] ? do_futex+0x1770/0x1770 [ 499.736796] [] ? security_file_ioctl+0x8f/0xc0 [ 499.742999] [] ? do_syscall_64+0x48/0x490 [ 499.748768] [] ? SyS_select+0x1e0/0x1e0 [ 499.754365] [] do_syscall_64+0x1a6/0x490 [ 499.760049] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:35 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:35 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:35 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:35 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:35 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x6, 0x10000000000000) r2 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000480)='IPVS\x00') sendmsg$IPVS_CMD_GET_DAEMON(r0, &(0x7f0000000400)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x40008000}, 0xc, &(0x7f00000003c0)={&(0x7f0000000280)={0xa0, r2, 0x400, 0x70bd2b, 0x25dfdbfd, {0xb}, [@IPVS_CMD_ATTR_DAEMON={0x50, 0x3, [@IPVS_DAEMON_ATTR_MCAST_PORT={0x8, 0x7, 0x4e22}, @IPVS_DAEMON_ATTR_MCAST_PORT={0x8, 0x7, 0x4e21}, @IPVS_DAEMON_ATTR_MCAST_TTL={0x8, 0x8, 0xfffffffffffffffd}, @IPVS_DAEMON_ATTR_MCAST_GROUP={0x8, 0x5, @local={0xac, 0x14, 0x14, 0xaa}}, @IPVS_DAEMON_ATTR_SYNC_MAXLEN={0x8, 0x4, 0x1ff}, @IPVS_DAEMON_ATTR_MCAST_TTL={0x8, 0x8, 0x5}, @IPVS_DAEMON_ATTR_MCAST_GROUP={0x8, 0x5, @dev={0xac, 0x14, 0x14, 0xf}}, @IPVS_DAEMON_ATTR_MCAST_IFN={0x14, 0x2, 'gretap0\x00'}]}, @IPVS_CMD_ATTR_DEST={0x24, 0x2, [@IPVS_DEST_ATTR_PERSIST_CONNS={0x8, 0x9, 0x28}, @IPVS_DEST_ATTR_ACTIVE_CONNS={0x8, 0x7, 0x1}, @IPVS_DEST_ATTR_PERSIST_CONNS={0x8, 0x9, 0xd7}, @IPVS_DEST_ATTR_INACT_CONNS={0x8, 0x8, 0x10001}]}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x4}, @IPVS_CMD_ATTR_TIMEOUT_TCP_FIN={0x8, 0x5, 0x2}]}, 0xa0}, 0x1, 0x0, 0x0, 0x4000801}, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) 2018/05/02 09:53:35 executing program 5: openat$pfkey(0xffffffffffffff9c, &(0x7f0000000280)='/proc/self/net/pfkey\x00', 0x80000, 0x0) r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) ioctl$EVIOCGID(r0, 0x80084502, &(0x7f00000003c0)=""/166) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) bind$packet(r0, &(0x7f0000000240)={0x11, 0xf8, 0x0, 0x1, 0x11, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x1}}, 0x14) ioctl$sock_ifreq(r0, 0x89f3, &(0x7f00000000c0)={'bcsh0\x00', @ifru_hwaddr=@broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:35 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x800) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:35 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 500.722977] FAULT_FLAG_ALLOW_RETRY missing 30 [ 500.727623] CPU: 0 PID: 30843 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 500.735233] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 500.744579] ffff88019108f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 500.752590] ffff8801b935a300 ffff88019108fa20 0000000000000000 ffff88019108fa48 [ 500.760573] ffffffff81cb75eb 0000000000000dca ffff8801cd98e908 ffff8801b935a40c [ 500.768562] Call Trace: [ 500.771131] [] dump_stack+0xc1/0x128 [ 500.776472] [] handle_userfault.cold.18+0x3e/0x51 [ 500.782939] [] ? debug_check_no_locks_freed+0x210/0x210 [ 500.789927] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 500.796307] [] ? preempt_schedule+0x25/0x30 [ 500.802251] [] ? ___preempt_schedule+0x16/0x18 [ 500.808457] [] ? handle_mm_fault+0x1267/0x28e0 [ 500.814660] [] ? handle_mm_fault+0x220f/0x28e0 [ 500.820866] [] handle_mm_fault+0x221d/0x28e0 [ 500.826896] [] ? vm_insert_mixed+0x200/0x200 [ 500.832929] [] __do_page_fault+0x5af/0xd50 [ 500.838786] [] ? mm_fault_error+0x2c0/0x2c0 [ 500.844730] [] ? exit_robust_list+0x220/0x220 [ 500.850847] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 500.857483] [] do_page_fault+0x27/0x30 [ 500.862993] [] page_fault+0x28/0x30 [ 500.868244] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 500.875055] [] ? SyS_pselect6+0x1be/0x540 [ 500.880824] [] ? SyS_select+0x1e0/0x1e0 [ 500.886420] [] ? SyS_futex+0x206/0x310 [ 500.891928] [] ? do_futex+0x1770/0x1770 [ 500.897533] [] ? security_file_ioctl+0x8f/0xc0 [ 500.903738] [] ? do_syscall_64+0x48/0x490 [ 500.909507] [] ? SyS_select+0x1e0/0x1e0 [ 500.915102] [] do_syscall_64+0x1a6/0x490 [ 500.920783] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:36 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) syz_genetlink_get_family_id$fou(&(0x7f00000000c0)='fou\x00') bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000240)=0x40110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:36 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) getsockopt$inet_sctp_SCTP_SOCKOPT_PEELOFF(r2, 0x84, 0x66, &(0x7f0000000340)={0x0, 0xffffffff}, &(0x7f00000003c0)=0x8) getsockopt$inet_sctp_SCTP_STREAM_SCHEDULER_VALUE(r1, 0x84, 0x7c, &(0x7f0000000400)={r4, 0x9, 0x9}, &(0x7f0000000440)=0x8) getsockopt$inet_sctp6_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x1d, &(0x7f0000000240)={0x6, [0x0, 0x0, 0x0, 0x0, 0x0, 0x0]}, &(0x7f0000000280)=0x1c) getsockopt$inet_sctp6_SCTP_PR_SUPPORTED(r1, 0x84, 0x71, &(0x7f00000002c0)={r5, 0x2}, &(0x7f0000000300)=0x8) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f00000000c0)=0x20, 0x4) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) 2018/05/02 09:53:36 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x0, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:36 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:36 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:36 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) userfaultfd(0x800) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f0000015000/0x1000)=nil, 0x1000}, 0x1}) 2018/05/02 09:53:36 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000280)) 2018/05/02 09:53:36 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:36 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x0, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:37 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:37 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 501.902093] FAULT_FLAG_ALLOW_RETRY missing 30 [ 501.906823] CPU: 0 PID: 30873 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 501.914437] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 501.923778] ffff8801c7c0f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 501.931835] ffff8801d7764900 ffff8801c7c0fa20 0000000000000000 ffff8801c7c0fa48 [ 501.939866] ffffffff81cb75eb 0000000000000dca ffff8801c6c10908 ffff8801d7764a0c [ 501.947907] Call Trace: [ 501.950485] [] dump_stack+0xc1/0x128 [ 501.955846] [] handle_userfault.cold.18+0x3e/0x51 [ 501.962329] [] ? debug_check_no_locks_freed+0x210/0x210 [ 501.969332] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 501.975731] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 501.982910] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 501.989740] [] ? handle_mm_fault+0x1267/0x28e0 [ 501.995959] [] ? handle_mm_fault+0x220f/0x28e0 [ 502.002183] [] handle_mm_fault+0x221d/0x28e0 [ 502.008230] [] ? vm_insert_mixed+0x200/0x200 [ 502.014283] [] __do_page_fault+0x5af/0xd50 [ 502.020158] [] ? mm_fault_error+0x2c0/0x2c0 [ 502.026127] [] ? exit_robust_list+0x220/0x220 [ 502.032259] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 502.038917] [] do_page_fault+0x27/0x30 [ 502.044441] [] page_fault+0x28/0x30 [ 502.049710] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 502.056538] [] ? SyS_pselect6+0x1be/0x540 [ 502.062327] [] ? SyS_select+0x1e0/0x1e0 [ 502.067944] [] ? SyS_futex+0x206/0x310 [ 502.073478] [] ? do_futex+0x1770/0x1770 [ 502.079098] [] ? security_file_ioctl+0x8f/0xc0 [ 502.085327] [] ? do_syscall_64+0x48/0x490 [ 502.091118] [] ? SyS_select+0x1e0/0x1e0 [ 502.096732] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:37 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 502.102435] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:38 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:38 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:38 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$sock_SIOCGPGRP(r0, 0x8904, &(0x7f00000000c0)=0x0) ptrace$getsig(0x4202, r3, 0x7, &(0x7f0000000240)) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:38 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x0, 0x0) linkat(r0, &(0x7f0000000240)='./file0\x00', r0, &(0x7f0000000280)='./file0\x00', 0x400) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) fadvise64(r0, 0x0, 0x8, 0x1) setsockopt$inet6_tcp_TCP_ULP(r1, 0x6, 0x1f, &(0x7f00000000c0)='tls\x00', 0x4) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) ioctl$EVIOCGRAB(r0, 0x40044590, &(0x7f00000002c0)=0x200) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:38 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:38 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:38 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:38 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:38 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000400)=[{}, {}, {}, {}, {}, {}, {}], 0x1555555555555942, 0x800, &(0x7f00000003c0)={0x8}, 0x2d6) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$SNDRV_SEQ_IOCTL_CREATE_PORT(r0, 0xc0a85320, &(0x7f0000000480)={{0x5, 0x8}, 'port1\x00', 0x4, 0x101008, 0x9, 0x40, 0x56a29004, 0x6, 0x101, 0x0, 0x2, 0x6}) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) syz_open_dev$sndseq(&(0x7f0000000100)='/dev/snd/seq\x00', 0x0, 0x180) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) getsockopt$inet_sctp6_SCTP_DEFAULT_SNDINFO(r0, 0x84, 0x22, &(0x7f00000000c0)={0x9, 0x200, 0x100, 0x5ba, 0x0}, &(0x7f0000000240)=0x10) getsockopt$inet_sctp_SCTP_DEFAULT_PRINFO(r0, 0x84, 0x72, &(0x7f0000000280)={r3, 0x9, 0x10}, &(0x7f00000002c0)=0xc) 2018/05/02 09:53:38 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) time(&(0x7f0000000040)) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000000)={0xaa, 0x20}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:38 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) getsockopt$inet_sctp_SCTP_PEER_AUTH_CHUNKS(r0, 0x84, 0x1a, &(0x7f0000000400)={0x0, 0xdc, "131a729d198f27f176a9ab5aa79690153aab39b8c67fc71b8a979f8a9a578c97deadf7e7bccf197d14017f734cf1fe8fcba829ecbea6ec21f7d221b1e1a11c40bff5556196988cdfd70bd7c3494d1ab1e95c442f337cfb47af9134b2719ef967e8cd581149fe28db7a2f24c1639b238df366ec21f071daa322b4e1f2b4659381e17c333e5bd4b0af96ded29f589ce8cdfd6ae0e5ae0238c091d24a4ffe54c41ace0c6b9f82833f7f777af5227a7aa0f5072e226c3c5db09dd2c2341dcbc6fdcdfaa14511ebe4e65c5484b2e226ab1ccff5311a63eb4d357ecd522671"}, &(0x7f0000000500)=0xe4) setsockopt$inet_sctp_SCTP_ASSOCINFO(r0, 0x84, 0x1, &(0x7f0000000540)={r4, 0x2, 0x5, 0xc87, 0xff, 0x4}, 0x14) pwritev(r0, &(0x7f00000000c0)=[{&(0x7f0000000240)="aa0115f2ea43f359e76c522e0de656127370fa94a5a9ecba78b6d9687bc8521146e73a1531f6fda9781c3733144fe99658c5ae84ca6dfe4a344851d61e036f7a320a2b9b8f584dd9427e065a7af502c1dee2c0c9b232964776e60b83f038ce2e4f346297f832d757164ee73d645e0a15e4d3d38e43f4a95dd0b7ea7f89", 0x7d}], 0x1, 0x0) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) getsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER_VALUE(r0, 0x84, 0x7c, &(0x7f00000002c0)={0x0, 0x100000000, 0x800}, &(0x7f0000000340)=0x8) setsockopt$inet_sctp_SCTP_ENABLE_STREAM_RESET(r0, 0x84, 0x76, &(0x7f00000003c0)={r5, 0x24000000}, 0x8) perf_event_open$cgroup(&(0x7f00000005c0)={0x7, 0x70, 0x7, 0x437c, 0x3, 0x15a7, 0x0, 0x1, 0x20000, 0x1, 0x4, 0x400, 0x8001, 0xffffffffffffff7f, 0xffffffff, 0x101, 0xfff, 0x523, 0x4000000, 0xb10a, 0x5, 0x8, 0x5c7, 0x9, 0x1f, 0x8, 0x1000, 0x100000000, 0x40, 0x9, 0x8431, 0x3ff, 0x8, 0x3, 0x10001, 0x6, 0x20, 0xffff, 0x0, 0x1, 0x3, @perf_bp={&(0x7f0000000580), 0x5}, 0x800, 0x6, 0x7, 0x5, 0x400, 0x10000, 0x9}, r0, 0x2, r2, 0x8) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) getsockopt$inet_sctp6_SCTP_MAXSEG(r0, 0x84, 0xd, &(0x7f0000000680)=@assoc_value={r5, 0x20}, &(0x7f00000006c0)=0x8) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$SIOCGIFMTU(r1, 0x8921, &(0x7f0000000640)) 2018/05/02 09:53:38 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 503.593416] FAULT_FLAG_ALLOW_RETRY missing 30 [ 503.598048] CPU: 1 PID: 30921 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 503.605657] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 503.614999] ffff8801c16f7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 503.622994] ffff8801b935b380 ffff8801c16f7a20 0000000000000000 ffff8801c16f7a48 [ 503.630986] ffffffff81cb75eb 0000000000000dca ffff88019296d108 ffff8801b935b48c [ 503.638989] Call Trace: [ 503.641558] [] dump_stack+0xc1/0x128 [ 503.646897] [] handle_userfault.cold.18+0x3e/0x51 [ 503.653364] [] ? debug_check_no_locks_freed+0x210/0x210 [ 503.660359] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 503.666741] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 503.673903] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 503.680715] [] ? handle_mm_fault+0x1267/0x28e0 [ 503.686922] [] ? handle_mm_fault+0x220f/0x28e0 [ 503.693124] [] handle_mm_fault+0x221d/0x28e0 [ 503.699154] [] ? vm_insert_mixed+0x200/0x200 [ 503.705189] [] __do_page_fault+0x5af/0xd50 [ 503.711047] [] ? mm_fault_error+0x2c0/0x2c0 [ 503.716993] [] ? exit_robust_list+0x220/0x220 [ 503.723122] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 503.729760] [] do_page_fault+0x27/0x30 [ 503.735270] [] page_fault+0x28/0x30 [ 503.740530] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 503.747341] [] ? SyS_pselect6+0x1be/0x540 [ 503.753110] [] ? SyS_select+0x1e0/0x1e0 [ 503.758708] [] ? SyS_futex+0x206/0x310 [ 503.764225] [] ? do_futex+0x1770/0x1770 [ 503.769822] [] ? __might_fault+0x114/0x1d0 [ 503.775677] [] ? do_syscall_64+0x48/0x490 [ 503.781451] [] ? SyS_select+0x1e0/0x1e0 [ 503.787046] [] do_syscall_64+0x1a6/0x490 [ 503.792728] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:40 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x0, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) restart_syscall() clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:40 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$inet6_tcp_int(r0, 0x6, 0x0, &(0x7f00000000c0)=0x7, 0x4) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$SNDRV_TIMER_IOCTL_GSTATUS(r0, 0xc0505405, &(0x7f0000000280)={{0x0, 0x3, 0x3, 0x3, 0x1}, 0x1, 0x9, 0x1}) ustat(0xf0c, &(0x7f0000000240)) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) ioctl$sock_SIOCGPGRP(r1, 0x8904, &(0x7f0000000240)=0x0) sendmsg$nl_generic(r1, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x9004008}, 0xc, &(0x7f0000000280)={&(0x7f00000003c0)={0x15e4, 0x15, 0x708, 0x70bd25, 0x25dfdbfe, {0xc}, [@nested={0x1a0, 0x2c, [@generic="fddc03a9c3a00bfe95ccfe6d4047268d777263a73323508c58d7d1dbeb92dc3e07d72b5a316d3f13f0436128e111c41a54ea04e0943de57630e403efec2f260f532ceebd6e0eb0d2f61bcf9a279fe3fd76d6193415097603561d327e81a1749a84b267b4e911639505d260e76ef1c94d9f229a42989ff507fce4828cdabfb257db0b247eaaac4968cb7f57aec9fc05e0d38e", @typed={0x8, 0x4c, @fd=r2}, @generic="95169dd51201d6b8e12e92498ba929d0b19fd3d501814edc0b0839d8ce8e81f30a790817a9178cfe50d1e2418d5861dbe38f3239f5390f9250b4e3ef1faf1058d84272849be863447f2db09d438ba7efeefa79326d168a3e2f38a8ff6b70b457e12795e2a02f7f39ebaae6a7f036939a0647310ebba07d3a25be0081a2551e94f302125e08a4866457e06b842323e5a3015b8d459a889dd71a583e6341c6a04a904e8b4657a896454318f22067834a976cffee422678aa63efc79dd1211e5b78fb95bc7d4b8c7be583e91ca989043424e20a57d059794f6e5656fb91fec33958ac5d", @generic="085d54d71a260413f209c0b9330240195cd0859aa290488475fcda2a41f2df31"]}, @nested={0x12b0, 0x8b, [@typed={0xc, 0x1d, @str='sit0\x00'}, @typed={0x8, 0x8e, @ipv4=@loopback=0x7f000001}, @generic="93958335d33ed78dd4295b47574f39fbdc9b7f93018da97fe3723b37f96d55bfd73c41e912fb7fff6b406120121b30249afed778f1c2cc4996d02991e34145d1b9aaf0c89f24ea00cd0fa628846c0539798c979b11b3318f639e6a06091cba24d36d5f12e3f9", @typed={0x8, 0x87, @pid=r4}, @typed={0x1004, 0x46, @binary="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"}, @typed={0xbc, 0x92, @binary="1afb806dfac325025610da231e4f23554c2330dcdc6c7592baa7d38ff8413c7cb3b3955f8a01b979beec6c1ba0283f3a1a07c48f5acb6526fd49326a3ddfd20aca6feb5c0f2eed05749745d69b65ab6cdc48a08b96f38e70307622f61dc880311708ee068931ca97d4128b411d90dc5468ab37b16378a08e7860f42f2b375c32013f1565cbd7683794c6b17c05c6dc74e3a467ebe6c16188811bcc473b062d0eada043c75b44168dc4709ea5cfbcde972dca51f537e9"}, @generic="dda2476c0869668601f9fc57973fdab18f753fcc146fb427e4af52aad27ae0e41d2c801bf6f3937344ecdded566fbcc57a92925a3b237c57ebacad9e0721c77436a0dfd0a0e8e40e78bab32caecea907da7642e5fd16942484b5fa32f7573de0b6e72c2ac37772dabf288641598a0c7efe0fb208673b78c487245029d6fe393258612c367abe60b71cc285e44e5b6c5bdccbcbb7134e89c5a1258eb4d85506c0ae2c42c8fc3ea0cba747cdbe353b6462a2bd48b0068fbd295f43f380f3a87022e58805aefbfa0a7d7266f4e97349157c735549e341fe77af1b695a0ed3c21cbac4e91880a8647c60f69da912bc5b512b1c598183918cf3b1a127c20b8e", @generic="6c1b1c27b2b435bb87de4ce3234a5a213d7837092b46fadf63332a650f6fc38a9643641ed77e104fe1d26733d23cd459f5c5b882bbf531416cabff", @typed={0x8, 0x48, @ipv4=@local={0xac, 0x14, 0x14, 0xaa}}, @generic="60e1d912c9d29a913f8fd236c965050dbac9f20041acf423cdeb2408269f4355d0bdeb086b0b3d"]}, @nested={0x170, 0x90, [@generic="84876fa2788f912e0e8c7a4ecf081797aa4817185c9c3b2908d6d5c484c4e6b5c6c491eed9c98e7cca6884450e1f52dadbab169ad24b91ec528ac4fc84243934c7f60c3631b589ec834370bebfcdf53a6d665c8e01282eed3514114102c1c04e99475eafde9328b64cc8e79b78", @generic="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"]}, @generic="1bbbf524297b95a7764011690c292c51"]}, 0x15e4}, 0x1, 0x0, 0x0, 0x804}, 0x40000) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) setsockopt$inet6_tcp_TCP_FASTOPEN_KEY(r0, 0x6, 0x21, &(0x7f00000000c0)="083bc8ecf2ef8e9b1061daac35779ae2", 0x10) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x0, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:40 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 505.317639] FAULT_FLAG_ALLOW_RETRY missing 30 [ 505.322373] CPU: 0 PID: 30960 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 505.329986] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 505.339335] ffff8801920d7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 505.347339] ffff8801b935ac00 ffff8801920d7a20 0000000000000000 ffff8801920d7a48 [ 505.355328] ffffffff81cb75eb 0000000000000dca ffff880192cee908 ffff8801b935ad0c [ 505.363316] Call Trace: [ 505.365882] [] dump_stack+0xc1/0x128 [ 505.371225] [] handle_userfault.cold.18+0x3e/0x51 [ 505.377693] [] ? debug_check_no_locks_freed+0x210/0x210 [ 505.384681] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 505.391085] [] ? preempt_schedule+0x25/0x30 [ 505.397031] [] ? ___preempt_schedule+0x16/0x18 [ 505.403239] [] ? handle_mm_fault+0x1267/0x28e0 [ 505.409445] [] ? handle_mm_fault+0x220f/0x28e0 [ 505.415652] [] handle_mm_fault+0x221d/0x28e0 [ 505.421683] [] ? vm_insert_mixed+0x200/0x200 [ 505.427718] [] __do_page_fault+0x5af/0xd50 [ 505.433576] [] ? mm_fault_error+0x2c0/0x2c0 [ 505.439524] [] ? exit_robust_list+0x220/0x220 [ 505.445650] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 505.452291] [] do_page_fault+0x27/0x30 [ 505.457801] [] page_fault+0x28/0x30 [ 505.463059] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 505.469871] [] ? SyS_pselect6+0x1be/0x540 [ 505.475641] [] ? SyS_select+0x1e0/0x1e0 [ 505.481239] [] ? SyS_futex+0x206/0x310 [ 505.486749] [] ? do_futex+0x1770/0x1770 [ 505.492347] [] ? security_file_ioctl+0x8f/0xc0 [ 505.498553] [] ? do_syscall_64+0x48/0x490 [ 505.504325] [] ? SyS_select+0x1e0/0x1e0 [ 505.509923] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:41 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 505.515611] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:41 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:41 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:41 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) getsockopt$sock_cred(0xffffffffffffff9c, 0x1, 0x11, &(0x7f0000000080)={0x0}, &(0x7f00000000c0)=0xc) pipe(&(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) perf_event_open(&(0x7f0000000000)={0x3, 0x70, 0x1, 0x10000, 0xfffffffffffffffc, 0x9, 0x0, 0x6, 0x8000, 0x1, 0x6, 0x4, 0xf1e9, 0x7f, 0x400, 0x2, 0x8, 0x3000000000000000, 0x6, 0x7, 0x9, 0x4, 0xffff, 0xffffffff80000000, 0xe36, 0xb6e1, 0x71, 0x7ff, 0x100000001, 0xd59, 0x1000, 0x861, 0x66b9, 0x5, 0x81, 0x1, 0xa9, 0x1, 0x0, 0x297, 0x2, @perf_config_ext={0x6, 0x80000001}, 0x0, 0x8001, 0x7, 0x6, 0xbe86, 0x6, 0x7}, r1, 0x3, r2, 0x2) r3 = socket(0x2, 0x803, 0x3) connect$inet(r3, &(0x7f0000000100)={0x2, 0x0, @remote={0xac, 0x14, 0x14, 0xbb}}, 0x10) sendmmsg(r3, &(0x7f0000006800)=[{{0x0, 0x0, &(0x7f0000000d80), 0x0, &(0x7f0000000e00)=[{0x10, 0x100}], 0x10, 0x8010}, 0xfffffffffffffffc}, {{&(0x7f00000015c0)=@can={0x1d}, 0x80, &(0x7f0000001a80)=[{&(0x7f0000001640)="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", 0xfb}, {&(0x7f0000001880)="03759e36e88afa1472cc1d7b0a0b70c195de09f5dec3", 0x16}], 0x2, 0x0, 0x0, 0x800}, 0x4}, {{&(0x7f0000004100)=@generic={0x3, "2b728c257b627a9a18380367c1b324045ba17870140034b4894b851cce0279b820bf70ad5a19800882ed3b1ff03740ea52a22e3bd94d609de38be9a98c4eb7a9c8574d28e728a8ee5b478b2fdcd178b5a2d092e7329cc0bc51d5cec92051b28d545e985c2a0a68c56c458a2c9207ea29f8d15e9b10f34ea01a3c989511c6"}, 0x80, &(0x7f00000044c0)=[{&(0x7f0000004340)="2fd51fd8e6f22ce9b1ac66f9874321127baa643b362a9a51d2cb4b62e33253c7be84b9f3fe3def8bb0cccef4e7f2b50e0bd8c2d4b581cce1550a6717ed8bfaf881b1a58208300827e80900fc3301a10366529d8ee98e2067a477e9909a4a49a32c91253a4817c576872de91ef6ce0ac02afc6182e8d5aabf54c1232300984048cb95936a627494c7ba4b02263788be2445061f846574c8cf651a56efd532f52dd585", 0xa2}], 0x1, 0x0, 0x0, 0x800}, 0x6}, {{&(0x7f0000005ac0)=@l2={0x1f, 0x7f, {0x4, 0x1ff, 0x4, 0xe6b, 0x3f, 0x2}, 0x3, 0x4}, 0x80, &(0x7f0000006180)=[{&(0x7f0000005b40)="5d119b81d631a1a2e6bee46ae25f2603ea3968247a", 0x15}, {&(0x7f0000005d80)="31a9fe7209f1c8bdf98c036063db17db3dee4f25ea15ba2ff7986dfe5ef97090a16447bc23292871147f9ec624ca6cd677dea50aeefb92878b1e2f22cc24f80e316bedc58dab24b34b97562c0a1bd65fd84c47846aef1f190c5325a2298d16de16b6a4236b0f71ac9dfc01c9fb4ea1b3b81311bdc3da68ba0e63e2a7c27399898b76d31a9f8324b27b7d4be73624019be4653c0ac12caaafb82849d79d945d809bc478e8490bae822c5fbeaa584fe3e5298b1e9878b88d", 0xb7}, {&(0x7f00000060c0)="f901e03b7c446f169ea0a5a9f95a34a340bd91d843feab949ea4a671331002da49a08e7fc452a77c27ed79d2f76f2a54074eb06d0c85cf03cf2cf2205bd1f17fcb008b6fcefd6410e096f6969206dc3ee85c369ff84e5020d4efe4d9e7e0561b6759e565383d23ad2940c2975732abda01b52de68f65489d3648106119289888d5c1b9965001a142dbb1b698b710eb26d57003562d974be4c4ba0352c87a01", 0x9f}], 0x3, 0x0, 0x0, 0x4000040}, 0x4}], 0x4, 0x800) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:41 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:41 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff83, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) openat$rfkill(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/rfkill\x00', 0x4001, 0x0) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) getsockopt$inet_sctp_SCTP_RESET_STREAMS(r0, 0x84, 0x77, &(0x7f0000000240)={0x0, 0x10001, 0x2, [0x9, 0x8]}, &(0x7f0000000280)=0xc) getsockopt$inet_sctp6_SCTP_RESET_STREAMS(r0, 0x84, 0x77, &(0x7f00000002c0)={r3, 0x3, 0x5, [0x6, 0x64c, 0x8, 0x0, 0x6]}, &(0x7f0000000340)=0x12) ioctl$TUNSETOFFLOAD(r0, 0x400454d0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:41 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000440)='/dev/snapshot\x00', 0x400200, 0x0) epoll_pwait(r0, &(0x7f0000000380)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$EVIOCSKEYCODE(r0, 0x40084504, &(0x7f00000000c0)=[0x0, 0xe4d]) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) write$tun(r0, &(0x7f0000000240)=ANY=[@ANYBLOB="0067ff51e56ddd0e63a350d7d2c5e900c8735493f08f77ac57525fe07684e686da4aa7c1914aa37b43f9477f95d0b31ffc3e2753ea5fa210cd4e3ae1c55a55c41467a32332e00800000000000000bd2e39d31c0998b64eee2dbf3e24fd6420f7c6ea"], 0x62) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) setsockopt$inet_udp_encap(r0, 0x11, 0x64, &(0x7f00000002c0), 0x4) userfaultfd(0x80800) ioctl$sock_SIOCDELDLCI(r0, 0x8981, &(0x7f0000000400)={'irlan0\x00', 0x401}) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x1, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) fallocate(r3, 0x1, 0x100000000, 0x1ff) 2018/05/02 09:53:41 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:41 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:41 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x80000, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:41 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:41 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$TUNSETVNETHDRSZ(r0, 0x400454d8, &(0x7f0000000240)=0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) setsockopt$IP_VS_SO_SET_EDIT(r0, 0x0, 0x483, &(0x7f0000000280)={0x2d, @multicast2=0xe0000002, 0x4e24, 0x2, 'lblc\x00', 0x3a, 0x3, 0x73}, 0x2c) r3 = openat$vga_arbiter(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vga_arbiter\x00', 0x101000, 0x0) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) getsockopt$inet_sctp6_SCTP_RECONFIG_SUPPORTED(r3, 0x84, 0x75, &(0x7f00000002c0)={0x0, 0x3}, &(0x7f00000003c0)=0x8) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000000480), 0x0, &(0x7f0000000400)=[@init={0x18, 0x84, 0x0, {0xf2a, 0x3fa, 0x5, 0xff}}, @sndinfo={0x20, 0x84, 0x2, {0x9, 0x4, 0x100, 0x48, r4}}, @dstaddrv4={0x18, 0x84, 0x7, @rand_addr=0x4}], 0x50}], 0x1, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:42 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:42 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:42 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:42 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) getpeername$unix(r0, &(0x7f0000000240)=@abs, &(0x7f00000002c0)=0x6e) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f00000000c0)={0x4, 0x8, 0x202}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:42 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:42 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 506.938705] raw_sendmsg: syz-executor3 forgot to set AF_INET. Fix it! [ 506.959422] FAULT_FLAG_ALLOW_RETRY missing 30 [ 506.964415] CPU: 1 PID: 31006 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 506.972034] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 506.981382] ffff8801c9cff850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 506.989419] ffff8801b935a600 ffff8801c9cffa20 0000000000000000 ffff8801c9cffa48 [ 506.998422] ffffffff81cb75eb 0000000000000dca ffff8801ba855108 ffff8801b935a70c [ 507.006464] Call Trace: [ 507.009045] [] dump_stack+0xc1/0x128 [ 507.014421] [] handle_userfault.cold.18+0x3e/0x51 [ 507.020904] [] ? debug_check_no_locks_freed+0x210/0x210 [ 507.027906] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 507.034302] [] ? preempt_schedule+0x25/0x30 [ 507.040265] [] ? ___preempt_schedule+0x16/0x18 [ 507.046493] [] ? handle_mm_fault+0x1267/0x28e0 [ 507.052718] [] ? handle_mm_fault+0x220f/0x28e0 [ 507.058944] [] handle_mm_fault+0x221d/0x28e0 [ 507.064996] [] ? vm_insert_mixed+0x200/0x200 [ 507.071050] [] __do_page_fault+0x5af/0xd50 [ 507.076935] [] ? mm_fault_error+0x2c0/0x2c0 [ 507.082906] [] ? exit_robust_list+0x220/0x220 [ 507.089044] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 507.095707] [] do_page_fault+0x27/0x30 [ 507.101236] [] page_fault+0x28/0x30 [ 507.106506] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 507.113339] [] ? SyS_pselect6+0x1be/0x540 [ 507.119148] [] ? SyS_select+0x1e0/0x1e0 [ 507.124765] [] ? SyS_futex+0x206/0x310 [ 507.130296] [] ? do_futex+0x1770/0x1770 2018/05/02 09:53:42 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 507.135916] [] ? security_file_ioctl+0x8f/0xc0 [ 507.142144] [] ? do_syscall_64+0x48/0x490 [ 507.147935] [] ? SyS_select+0x1e0/0x1e0 [ 507.153549] [] do_syscall_64+0x1a6/0x490 [ 507.159253] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:43 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000240)='/dev/ppp\x00', 0x2, 0x0) ioctl$ASHMEM_SET_SIZE(r0, 0x40087703, 0x7) r1 = userfaultfd(0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r2 = openat$keychord(0xffffffffffffff9c, &(0x7f0000000000)='/dev/keychord\x00', 0x2000, 0x0) ioctl$VT_OPENQRY(r2, 0x5600, &(0x7f0000000040)) getsockopt$inet6_mreq(r2, 0x29, 0x1f, &(0x7f0000000080)={@mcast2}, &(0x7f00000000c0)=0x14) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r1, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) dup3(r2, r1, 0x80000) clone(0x0, &(0x7f0000000100)="d20451e9604661c5380591c212c5915408963f572c85d2144ee00ff73b5799a7259f56dd1c518c7c74443a080000000000000060562064e98e58c6627303c100cba7e10748b116266b3f41ce029d97581fd68003a3525511e49bea552e5f53902450", &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000440)="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") ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:43 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 508.284689] FAULT_FLAG_ALLOW_RETRY missing 30 [ 508.289267] CPU: 1 PID: 31054 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 508.296873] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 508.306207] ffff8801c9cff850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 508.314206] ffff8801b935be00 ffff8801c9cffa20 0000000000000000 ffff8801c9cffa48 [ 508.322186] ffffffff81cb75eb 0000000000000dca ffff8801cfc08908 ffff8801b935bf0c [ 508.330181] Call Trace: [ 508.332746] [] dump_stack+0xc1/0x128 [ 508.338082] [] handle_userfault.cold.18+0x3e/0x51 [ 508.344552] [] ? debug_check_no_locks_freed+0x210/0x210 [ 508.351545] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 508.357925] [] ? preempt_schedule+0x25/0x30 [ 508.364042] [] ? ___preempt_schedule+0x16/0x18 [ 508.370248] [] ? handle_mm_fault+0x1267/0x28e0 [ 508.376453] [] ? handle_mm_fault+0x220f/0x28e0 [ 508.382655] [] handle_mm_fault+0x221d/0x28e0 [ 508.388687] [] ? vm_insert_mixed+0x200/0x200 [ 508.394718] [] __do_page_fault+0x5af/0xd50 [ 508.400574] [] ? mm_fault_error+0x2c0/0x2c0 [ 508.406522] [] ? exit_robust_list+0x220/0x220 [ 508.412641] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 508.419286] [] do_page_fault+0x27/0x30 [ 508.424794] [] page_fault+0x28/0x30 [ 508.430045] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 508.436859] [] ? SyS_pselect6+0x1be/0x540 [ 508.442631] [] ? SyS_select+0x1e0/0x1e0 [ 508.448228] [] ? SyS_futex+0x206/0x310 [ 508.453738] [] ? do_futex+0x1770/0x1770 [ 508.459355] [] ? security_file_ioctl+0x8f/0xc0 [ 508.465562] [] ? do_syscall_64+0x48/0x490 [ 508.471336] [] ? SyS_select+0x1e0/0x1e0 [ 508.476932] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:44 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) timer_create(0x7, &(0x7f00000000c0)={0x0, 0x2, 0x2}, &(0x7f0000000240)=0x0) timer_getoverrun(r3) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) setsockopt$inet6_MRT6_DEL_MFC_PROXY(r0, 0x29, 0xd3, &(0x7f0000000280)={{0xa, 0x4e24, 0x8, @mcast1={0xff, 0x1, [], 0x1}, 0x6}, {0xa, 0x4e23, 0x3ff, @local={0xfe, 0x80, [], 0xaa}, 0x5}, 0x0, [0x6, 0x7ff, 0x37e, 0x3, 0x3, 0x20, 0x8000, 0x7]}, 0x5c) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) getsockopt$inet_mreqsrc(r1, 0x0, 0x27, &(0x7f0000000240)={@dev, @remote, @loopback}, &(0x7f0000000280)=0xc) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) write(r0, &(0x7f0000000240), 0x0) ioctl$BLKBSZGET(r0, 0x80081270, &(0x7f00000000c0)) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0x0, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$TCSETSW(r0, 0x5403, &(0x7f00000000c0)={0x200, 0x3ff, 0x80, 0xffffffffffffffff, 0xb32, 0x0, 0x3, 0xd8e, 0xbdfe, 0x8, 0x800, 0x2}) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) write$binfmt_script(r2, &(0x7f00000004c0)={'#! ', './file0', [{0x20}, {0x20, '/dev/snapshot\x00'}, {0x20, 'locpusetposix_acl_accesscpusetppp0[cgroup*.'}], 0xa, "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"}, 0x1047) ioctl$KDDELIO(r0, 0x4b35, 0xfffffffffffffffd) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl(r2, 0x6, &(0x7f0000000240)="b6d5a2372e52c4848927fc88a71e56e94d4218736fec188a38655b4ca3e01b7c959ac36d610e3cea7087ca09561a4c59f31bb7a2e1d0598a5afdaa53ef5697ab065dd68de905a973474267515ae06f179c1f127e1467a55c5bedfc8ea7b847d8a3af8d8b70b3566ba98eba0d4d67b01564612fd829038234f5df8165df2cfeb9616adebd87e069acbb09a18b3b14f0a47828781462bdbcdd0d9817fd4f109943f07997aa16174cd21bc1267a82") setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) setsockopt$inet6_tcp_TCP_MD5SIG(r0, 0x6, 0xe, &(0x7f00000003c0)={@in6={{0xa, 0x4e20, 0x8000, @mcast1={0xff, 0x1, [], 0x1}, 0x3}}, 0x3, 0x1, 0x7, "9cf631e9b01cb344b38f9f12a8b93e48dd025c92fc4e77e81db68cd14800753149e176cbcdb40efa679da87f7755f8ffa970b2c2d6bd9157ad49b7e2ee6256ad67793cd16f30b78f34bb74d0308edd60"}, 0xd8) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) socketpair(0x13, 0x80007, 0x2, &(0x7f0000000000)={0xffffffffffffffff}) ioctl$RNDGETENTCNT(r1, 0x80045200, &(0x7f0000000040)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000000080)={0xaa, 0x62}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:44 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 508.482615] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:44 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:44 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 509.323973] FAULT_FLAG_ALLOW_RETRY missing 30 [ 509.328662] CPU: 0 PID: 31074 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 509.336276] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 509.345619] ffff8801d90af850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 509.353607] ffff8801b935b980 ffff8801d90afa20 0000000000000000 ffff8801d90afa48 [ 509.361600] ffffffff81cb75eb 0000000000000dca ffff8801ca470908 ffff8801b935ba8c [ 509.369585] Call Trace: [ 509.372155] [] dump_stack+0xc1/0x128 [ 509.377495] [] handle_userfault.cold.18+0x3e/0x51 [ 509.383964] [] ? debug_check_no_locks_freed+0x210/0x210 [ 509.390953] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 509.397335] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 509.404499] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 509.411348] [] ? handle_mm_fault+0x1267/0x28e0 [ 509.417555] [] ? handle_mm_fault+0x220f/0x28e0 [ 509.423760] [] handle_mm_fault+0x221d/0x28e0 [ 509.429793] [] ? vm_insert_mixed+0x200/0x200 [ 509.435837] [] __do_page_fault+0x5af/0xd50 [ 509.441694] [] ? mm_fault_error+0x2c0/0x2c0 [ 509.447724] [] ? exit_robust_list+0x220/0x220 [ 509.453843] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 509.460482] [] do_page_fault+0x27/0x30 [ 509.465994] [] page_fault+0x28/0x30 [ 509.471243] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 509.478054] [] ? SyS_pselect6+0x1be/0x540 [ 509.483825] [] ? SyS_select+0x1e0/0x1e0 [ 509.489511] [] ? SyS_futex+0x206/0x310 [ 509.495022] [] ? do_futex+0x1770/0x1770 [ 509.500623] [] ? security_file_ioctl+0x8f/0xc0 [ 509.506830] [] ? do_syscall_64+0x48/0x490 [ 509.512620] [] ? SyS_select+0x1e0/0x1e0 [ 509.518218] [] do_syscall_64+0x1a6/0x490 [ 509.523907] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:45 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:45 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:45 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000240)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:45 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000ffb000/0x3000)=nil, 0x3000}, 0x1}) 2018/05/02 09:53:45 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x0, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:45 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:45 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:45 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:45 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) mmap$binder(&(0x7f0000ffb000/0x2000)=nil, 0x2000, 0x8, 0x30011, r0, 0x8) ioctl$DRM_IOCTL_AGP_ALLOC(r0, 0xc0206434, &(0x7f00000000c0)={0x71, 0x0, 0x10003, 0x100000000}) ioctl$DRM_IOCTL_AGP_BIND(r0, 0x40106436, &(0x7f0000000240)={r3, 0xfff}) 2018/05/02 09:53:45 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) bind$bt_l2cap(r0, &(0x7f0000000240)={0x1f, 0x7e0e, {0x9, 0x9, 0x8, 0x4, 0x1ff, 0x8}, 0x0, 0x81}, 0xe) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) recvfrom$ipx(r1, &(0x7f00000000c0)=""/39, 0x27, 0x40000021, 0x0, 0x0) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:46 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x0, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 510.982456] FAULT_FLAG_ALLOW_RETRY missing 30 [ 510.987298] CPU: 1 PID: 31122 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 510.994918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 511.004268] ffff8801b8a57850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 511.012280] ffff8801d7765c80 ffff8801b8a57a20 0000000000000000 ffff8801b8a57a48 [ 511.020273] ffffffff81cb75eb 0000000000000dca ffff8801b8f9d108 ffff8801d7765d8c [ 511.028275] Call Trace: [ 511.030841] [] dump_stack+0xc1/0x128 [ 511.036178] [] handle_userfault.cold.18+0x3e/0x51 [ 511.042647] [] ? debug_check_no_locks_freed+0x210/0x210 [ 511.049635] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 511.056273] [] ? preempt_schedule+0x25/0x30 [ 511.062217] [] ? ___preempt_schedule+0x16/0x18 [ 511.068424] [] ? handle_mm_fault+0x1267/0x28e0 [ 511.074627] [] ? handle_mm_fault+0x220f/0x28e0 [ 511.080916] [] handle_mm_fault+0x221d/0x28e0 [ 511.086945] [] ? vm_insert_mixed+0x200/0x200 [ 511.092988] [] __do_page_fault+0x5af/0xd50 [ 511.098844] [] ? mm_fault_error+0x2c0/0x2c0 [ 511.104789] [] ? exit_robust_list+0x220/0x220 [ 511.110905] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 511.117544] [] do_page_fault+0x27/0x30 [ 511.123053] [] page_fault+0x28/0x30 [ 511.128304] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 511.135379] [] ? SyS_pselect6+0x1be/0x540 [ 511.141148] [] ? SyS_select+0x1e0/0x1e0 [ 511.146748] [] ? SyS_futex+0x206/0x310 [ 511.152263] [] ? do_futex+0x1770/0x1770 [ 511.157860] [] ? security_file_ioctl+0x8f/0xc0 [ 511.164071] [] ? do_syscall_64+0x48/0x490 [ 511.169844] [] ? SyS_select+0x1e0/0x1e0 [ 511.175439] [] do_syscall_64+0x1a6/0x490 [ 511.181125] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:47 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) accept$inet6(r1, &(0x7f0000000000)={0x0, 0x0, 0x0, @loopback}, &(0x7f0000000040)=0x1c) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:47 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$DRM_IOCTL_FREE_BUFS(r0, 0x4010641a, &(0x7f0000000240)={0x1, &(0x7f00000000c0)=[0x5]}) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) setsockopt$inet_sctp_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f0000000280)={0x3}, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x19448694, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) setsockopt$inet_sctp_SCTP_SOCKOPT_BINDX_REM(r0, 0x84, 0x65, &(0x7f00000003c0)=[@in6={0xa, 0x4e22, 0x3ff, @mcast2={0xff, 0x2, [], 0x1}, 0x73ab}, @in={0x2, 0x4e21, @remote={0xac, 0x14, 0x14, 0xbb}}, @in6={0xa, 0x4e24, 0x2, @empty, 0x100000001}, @in={0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0xd}}], 0x58) pipe2(&(0x7f00000002c0), 0x80000) getsockopt$EBT_SO_GET_INIT_INFO(r0, 0x0, 0x82, &(0x7f0000000240)={'filter\x00'}, &(0x7f00000000c0)=0x78) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000400)) 2018/05/02 09:53:47 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:47 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 512.371707] FAULT_FLAG_ALLOW_RETRY missing 30 [ 512.376383] CPU: 0 PID: 31160 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 512.383995] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 512.393343] ffff8801d95c7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 512.401392] ffff8801d7765800 ffff8801d95c7a20 0000000000000000 ffff8801d95c7a48 [ 512.409441] ffffffff81cb75eb 0000000000000dca ffff8801c6c15108 ffff8801d776590c [ 512.417477] Call Trace: [ 512.420056] [] dump_stack+0xc1/0x128 [ 512.425418] [] handle_userfault.cold.18+0x3e/0x51 [ 512.431904] [] ? debug_check_no_locks_freed+0x210/0x210 [ 512.438907] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 512.445304] [] ? preempt_schedule+0x25/0x30 [ 512.451268] [] ? ___preempt_schedule+0x16/0x18 [ 512.457497] [] ? handle_mm_fault+0x1267/0x28e0 [ 512.463728] [] ? handle_mm_fault+0x220f/0x28e0 [ 512.469950] [] handle_mm_fault+0x221d/0x28e0 [ 512.476035] [] ? vm_insert_mixed+0x200/0x200 [ 512.482086] [] __do_page_fault+0x5af/0xd50 [ 512.487963] [] ? mm_fault_error+0x2c0/0x2c0 [ 512.493930] [] ? exit_robust_list+0x220/0x220 [ 512.500159] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 512.506819] [] do_page_fault+0x27/0x30 [ 512.512351] [] page_fault+0x28/0x30 [ 512.518056] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 512.524891] [] ? SyS_pselect6+0x1be/0x540 [ 512.530678] [] ? SyS_select+0x1e0/0x1e0 [ 512.536371] [] ? SyS_futex+0x206/0x310 [ 512.541906] [] ? do_futex+0x1770/0x1770 [ 512.547521] [] ? security_file_ioctl+0x8f/0xc0 [ 512.553747] [] ? do_syscall_64+0x48/0x490 [ 512.559538] [] ? SyS_select+0x1e0/0x1e0 [ 512.565152] [] do_syscall_64+0x1a6/0x490 [ 512.570854] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:48 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) ioctl$sock_inet6_tcp_SIOCATMARK(r0, 0x8905, &(0x7f0000000280)) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000240)={'ip_vti0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) setsockopt$inet_mtu(r0, 0x0, 0xa, &(0x7f00000000c0)=0x1, 0x4) sysfs$1(0x1, &(0x7f00000002c0)='/dev/snapshot\x00') 2018/05/02 09:53:48 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:48 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f00000000c0)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f00000008c0)=[{&(0x7f0000000240)="a46963ba83a4d3ada94fc79e7f65bb8b910f82ea98360d6afbf6cbe8e611d5970657258eb2929bc398694e23f6fc10a8b92d933bcd468c00bb0f42007cd21cc14cdaedb97f5124a7224a1c9acba11dd3629797a2714537c7b99cb9d858470a802c2ae8bfee45d4f5ae10e5dcf15ba5155ea4ba0ebe13b2a40f095a084b4e71a301ea29fe38c166e4f241f89468e905a89fcd", 0x92}, {&(0x7f00000003c0)="a2b2f7d56e28db11e4ea5f3bc9e77568b11cad18835b048e1778908232819d6a630965afe13f61ffe37e5c647250ada2ab1fe0e864f54c9e6071e4c4a016710ee9ca3a9c84d4edbee6c5a14b0b273c01c45f8d1a20c772a42676153814673d81d46b7d189f6f50273020a87455216cad5dc2627149e490ea6fc4467d84e9ebad22c0bd138a9661b7f873fcfcb4c67a2e96c290ce06e497eb0725a540f15e8f771822f71238", 0xa5}, {&(0x7f0000000480)="3c61423f5a4b154707b2639b4e851a76b24d15e7dd6362a54bf9e1f6e43af4c7c933ba408cb2e3516b86c379101618c81ddd2a2240baaed761bfc53f930e0a8fa766f9966e01519449a9ce748c514481f4ebf825a81af0d560fedf69fa06c4447c8872b03d37772e214b6795a0883ebe0c46b5624fc5641726b82b6a995b0a76f481a905ede62c52f536e31ab09afc948a77c0cc068c63b750ec31a230f217e1be31247d49d4abd8b26f7b5a7f970c5cbe229db992cf8c6ccc00a993f31159b9ad", 0xc1}, {&(0x7f0000000580)="cc66545937d8a3e1858c10f6bbcf1ef2c82ad12f0429da3c8419f721b49e6a7341a1f8fa36ed42f4a2552abf7f835a459ba38bf53c8ced5711b24db31c3af79bfb292b18393e671f767b8c011fcfbf053a944e684856276cf64d1efad2947d38a78b47c61c29", 0x66}, {&(0x7f0000000600)="8ea0340293462eef45d19c34ceeaa2942e7406e101af2eb2c12998e03c8af45a89d7fc5c2e86a476a24f9c958d628f35ce309c9444fdc707ba718208a955b222868b44235f101ea64512d4cf199f66832f4e3c4216165350368f7aae23056b8c2019aa41e7674f27be6391a13b1008e98729baf404dfd8e864cef0b561ef1253159572eaac4aa836cc1d162e507b656750c8a8731e40a881d8837945f41de8adc2174e16e7d12672e8fee7f2c49be2089166cc72f69f4e7b573a7a7ed2af49bb25e80e43c015104e37e2b76909", 0xcd}, {&(0x7f0000000700)="7c902729177e6649fc91a7cbc8f700eb7b713279c05743b00dd40f90689a0ea9e43816eadc2950f0677a90b5ba15a51889de4032afe54158c3b62c7433733feaaee1193695b98bba2bebfa98176364ac326234599ecc09d5d4f3b287275855aceb6cc12fbd988fc9e3d0ed65e39c40c52b84544a12479113aee51dd42853a336a807c1800cec92ca5e32f8f6263ba063df934567055ff3407690f03d510fe2cbaa202f2439e94d61e595c0b525eae4de7d76d96e3be9ef", 0xb7}, {&(0x7f00000007c0)="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", 0xfd}], 0x7, &(0x7f0000dda000)}], 0x1, 0x400000) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:48 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:48 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:48 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0), 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:48 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0xc0800) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = fcntl$dupfd(r0, 0x0, r0) finit_module(r1, &(0x7f0000000040)="76626f786e65743070707030a200", 0x2) setsockopt$inet_sctp6_SCTP_FRAGMENT_INTERLEAVE(r1, 0x84, 0x12, &(0x7f0000000000)=0xff, 0x4) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) ioctl$VT_DISALLOCATE(r1, 0x5608) 2018/05/02 09:53:48 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000440)=[{}, {}, {}, {}, {}, {}, {}], 0x155556fa, 0xffffffffffffff83, &(0x7f0000000400)={0x80000000000001}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) getsockopt$inet6_mreq(r0, 0x29, 0x476c714924c62142, &(0x7f0000000280)={@mcast2}, &(0x7f00000002c0)=0x14) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) ioctl$DRM_IOCTL_ADD_CTX(r0, 0xc0086420, &(0x7f00000000c0)={0x0}) ioctl$DRM_IOCTL_LOCK(r0, 0x4008642a, &(0x7f0000000240)={r3, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$packet_tx_ring(r0, 0x107, 0xd, &(0x7f0000000140)=@req3={0x81, 0x4, 0x1c, 0x3, 0x81, 0x0, 0x86a}, 0x4ed) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:48 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) r1 = syz_open_dev$usbmon(&(0x7f0000000000)='/dev/usbmon#\x00', 0x0, 0x8000) ioctl$DRM_IOCTL_CONTROL(r1, 0x40086414, &(0x7f0000000040)={0x3, 0x6}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:48 executing program 5: r0 = openat$autofs(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/autofs\x00', 0x301000, 0x0) getsockopt$inet_sctp_SCTP_GET_LOCAL_ADDRS(0xffffffffffffffff, 0x84, 0x6d, &(0x7f0000000480)={0x0, 0xf1, "5c5f12da1568e0f8049e0a3ff48a7aee7de7c5df0b1bb6bd8af4796d9910d59ed0eb8bb782a3dc7fc00b61a7960229e222ffadf89eb771a515457d903d99514a19981f85a21b1536ec37f809ae35a866e92eebe7b3f8f82066a0c330d1d3dd800e3ab07c92df79620745a24a57c9a2c03c15f546f88033e235505b54e7be5b36eff05f5e92a184139aed300e59810e63c8f75db736ea92706316e5fa9d89e1e67cf548ae2211b6185a61b880e8b5e843ab57a2d900667c788de8b445494fb62f081e415014cd790e08980a93358d1f7b17b9c4dc9bf247cea213dc282881ee84d9e94d7e1afd0ab5bfea6fef53795f2ab6"}, &(0x7f0000000300)=0xf9) getsockopt$inet_sctp6_SCTP_GET_ASSOC_STATS(r0, 0x84, 0x70, &(0x7f0000000580)={r1, @in={{0x2, 0x4e23, @local={0xac, 0x14, 0x14, 0xaa}}}, [0x6, 0x7ff, 0x2, 0x80, 0x3, 0x8, 0x2, 0x46, 0x92, 0x80, 0x0, 0x8, 0x9, 0xff, 0x7c5d2b8d]}, &(0x7f0000000680)=0x100) r2 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000280)='/dev/snapshot\x00', 0x1a1202, 0x0) epoll_pwait(r2, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) ioctl$TIOCSLCKTRMIOS(r2, 0x5457, &(0x7f00000002c0)) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$EVIOCGMASK(r2, 0x80104592, &(0x7f0000000240)={0x11, 0xd9, &(0x7f0000000380)="a49b51c67e22db8509a528547da46c96bd99730495ac927b5c1b2e64244681953ebb0345f9c39af20bca92692dac0785b11922fc5e9eec7c1d1930cbd832c3b42d22571d631162fd9a3fe6d58fcc2df05e7140b98ad179e08e8865d00ea4ac3952d5ec9f7cbf0f942dda6b53524d8afcab53345eff8880e7ae6057303bf351de7fd17e9f0d466d0bc8e6902abe1097c6ac38f272896398b4275029cf88efaa16b1da24e2897094f09b15f2834da59e01f825b5444c5eddaf443cda0a52718918879e2b4b92e30dfb636f104f4896b257b1497b10be4a461dd9"}) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000340)) 2018/05/02 09:53:48 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:48 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:48 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000100011, 0x800, 0xfffffffffffffffe) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:49 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = getpgrp(0xffffffffffffffff) fcntl$setown(r1, 0x8, r3) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$sock_cred(r1, 0x1, 0x11, &(0x7f0000000340), &(0x7f00000003c0)=0xc) ioctl$sock_FIOGETOWN(r0, 0x8903, &(0x7f00000002c0)=0x0) fdatasync(r2) perf_event_open(&(0x7f0000000240)={0x4, 0x70, 0x8001, 0x9, 0x5, 0x0, 0x0, 0x7ff, 0x228, 0x8, 0x0, 0x1, 0x8, 0x7, 0x7, 0x1be8, 0x8, 0x7, 0x400, 0x9, 0xff, 0xe, 0x5, 0x401, 0x3, 0xfffffffffffffffd, 0xffffffffffff9882, 0x3, 0x2f, 0x10001, 0x401, 0x1, 0x80000000, 0xd9f1, 0x1, 0x3, 0x8, 0x5, 0x0, 0x400, 0x1, @perf_bp={&(0x7f00000000c0), 0x4}, 0x8000, 0xef3, 0x4, 0x5, 0x100000001, 0x1a, 0x1}, r5, 0x6, r0, 0x8) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:49 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x15, 0x5000000000080002, 0xfffffffffffffff9) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) read$eventfd(r2, &(0x7f00000000c0), 0x8) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:49 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:49 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:49 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50a, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r1 = socket$inet(0x2, 0x4000000000000001, 0x0) setsockopt$inet_tcp_TCP_CONGESTION(r1, 0x6, 0xd, &(0x7f00000001c0)='vegas\x00', 0x6) setsockopt$inet_tcp_int(r1, 0x6, 0x2, &(0x7f0000ed4000)=0x7b, 0x4) bind$inet(r1, &(0x7f0000deb000)={0x2, 0x4e23, @broadcast=0xffffffff}, 0x10) setsockopt$SO_ATTACH_FILTER(r1, 0x1, 0x1a, &(0x7f0000000680)={0x1, &(0x7f0000818000)=[{0x6, 0x0, 0x0, 0xfc}]}, 0x10) r2 = fcntl$dupfd(r1, 0x0, r1) sendto$inet(r1, &(0x7f0000000500), 0x0, 0x20000000, &(0x7f0000deaff0)={0x2, 0x4e23, @loopback=0x7f000001}, 0x10) sendmsg$inet_sctp(r2, &(0x7f0000000640)={&(0x7f0000000240)=@in6={0xa, 0x0, 0x0, @loopback={0x0, 0x1}}, 0x1c, &(0x7f00000006c0)=[{&(0x7f0000000c00)="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", 0x8e1}], 0x1, 0x0, 0x0, 0x10}, 0x4000810) sendmsg(0xffffffffffffffff, &(0x7f000009cfe4)={&(0x7f000009ffa8)=@alg={0x26, 'aead\x00', 0x0, 0x0, 'pcrypt(pcrypt(rfc4106(gcm(aes))))\x00'}, 0x80, &(0x7f0000398000)}, 0x0) ioctl$EVIOCGRAB(0xffffffffffffffff, 0x40044590, &(0x7f00000003c0)=0x4) syz_open_dev$binder(&(0x7f000000fff3)='/dev/binder#\x00', 0xffffffffffffffff, 0x0) setsockopt$inet_sctp_SCTP_PR_SUPPORTED(0xffffffffffffffff, 0x84, 0x71, &(0x7f0000000140), 0x8) fcntl$dupfd(r2, 0x406, r1) getsockopt$inet_sctp_SCTP_MAXSEG(r2, 0x84, 0xd, &(0x7f00000000c0), &(0x7f0000000280)=0x4) ioctl$sock_inet_SIOCSIFFLAGS(0xffffffffffffffff, 0x8914, &(0x7f0000000380)={'bridge_slave_0\x00'}) r3 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r3, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r3, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 513.937223] FAULT_FLAG_ALLOW_RETRY missing 30 [ 513.941896] CPU: 1 PID: 31218 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 513.949509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 513.958859] ffff8801cb7f7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 513.966905] ffff8801b935ad80 ffff8801cb7f7a20 0000000000000000 ffff8801cb7f7a48 [ 513.974941] ffffffff81cb75eb 0000000000000dca ffff8801b6933908 ffff8801b935ae8c [ 513.982978] Call Trace: [ 513.985554] [] dump_stack+0xc1/0x128 [ 513.990905] [] handle_userfault.cold.18+0x3e/0x51 [ 513.997391] [] ? debug_check_no_locks_freed+0x210/0x210 [ 514.004392] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 514.010786] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 514.017965] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 514.024793] [] ? handle_mm_fault+0x1267/0x28e0 [ 514.031009] [] ? handle_mm_fault+0x220f/0x28e0 [ 514.037227] [] handle_mm_fault+0x221d/0x28e0 [ 514.043270] [] ? vm_insert_mixed+0x200/0x200 [ 514.049317] [] __do_page_fault+0x5af/0xd50 [ 514.055193] [] ? mm_fault_error+0x2c0/0x2c0 [ 514.061150] [] ? exit_robust_list+0x220/0x220 [ 514.067286] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 514.073941] [] do_page_fault+0x27/0x30 [ 514.079465] [] page_fault+0x28/0x30 [ 514.084732] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 514.091645] [] ? SyS_pselect6+0x1be/0x540 [ 514.097426] [] ? SyS_select+0x1e0/0x1e0 [ 514.103039] [] ? SyS_futex+0x206/0x310 [ 514.108561] [] ? do_futex+0x1770/0x1770 [ 514.114611] [] ? security_file_ioctl+0x8f/0xc0 [ 514.120834] [] ? do_syscall_64+0x48/0x490 [ 514.126619] [] ? SyS_select+0x1e0/0x1e0 [ 514.132237] [] do_syscall_64+0x1a6/0x490 [ 514.137928] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:50 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$inet6_IPV6_XFRM_POLICY(r1, 0x29, 0x23, &(0x7f00000003c0)={{{@in6=@dev, @in=@local}}, {{@in6=@mcast1}, 0x0, @in6}}, &(0x7f00000000c0)=0xe8) getsockname$packet(r1, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @remote}, &(0x7f0000000280)=0x14) getsockopt$inet_IP_IPSEC_POLICY(r0, 0x0, 0x10, &(0x7f00000004c0)={{{@in6=@local, @in6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@mcast2}}}, &(0x7f00000002c0)=0xe8) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) INIT: Id "2" respawning too fast: disabled for 5 minutes 2018/05/02 09:53:50 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:50 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x0, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:50 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:50 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) ioctl$sock_SIOCGPGRP(0xffffffffffffff9c, 0x8904, &(0x7f0000000000)=0x0) ptrace$peek(0x1, r1, &(0x7f0000000040)) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:50 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:50 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) setsockopt$ARPT_SO_SET_REPLACE(r0, 0x0, 0x60, &(0x7f00000004c0)={'filter\x00', 0x7, 0x4, 0x4a8, 0x280, 0x3c0, 0x280, 0x3c0, 0x3c0, 0x3c0, 0x4, &(0x7f0000000240), {[{{@arp={@rand_addr=0x10000, @multicast2=0xe0000002, 0xff0000ff, 0x0, @empty, {[0x0, 0x0, 0xff, 0xff]}, @mac, {[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x6, 0xfffffffffffffffb, 0x8, 0x7, 0xbf, 0x6b, 'veth1_to_bridge\x00', 'veth1_to_bond\x00', {}, {0xff}, 0x0, 0x51}, 0xf0, 0x140}, @mangle={0x50, 'mangle\x00', 0x0, {@mac=@remote={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xbb}, @empty, @multicast1=0xe0000001, @remote={0xac, 0x14, 0x14, 0xbb}, 0x4, 0x1}}}, {{@arp={@multicast2=0xe0000002, @rand_addr=0x3, 0xffffffff, 0xffffffff, @empty, {[0xff, 0x0, 0x0, 0x0, 0x0, 0xff]}, @mac=@local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, {[0xff, 0x0, 0x0, 0x0, 0xff, 0xff]}, 0x7f, 0x10001, 0x7, 0x8000, 0x6, 0x6, 'ipddp0\x00', 'nr0\x00', {0xff}, {0xff}, 0x0, 0x290}, 0xf0, 0x140}, @mangle={0x50, 'mangle\x00', 0x0, {@mac=@random="4b9091d2cc89", @mac=@local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, @empty, @rand_addr=0x81, 0x3, 0xffffffff}}}, {{@uncond, 0xf0, 0x140}, @mangle={0x50, 'mangle\x00', 0x0, {@empty, @mac=@dev={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0x18}, @dev={0xac, 0x14, 0x14, 0x1e}, @rand_addr=0x99, 0x1, 0xffffffff}}}], {{[], 0xc0, 0xe8}, {0x28, '\x00', 0x0, 0xfffffffffffffffe}}}}, 0x4f8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) sendto$llc(r0, &(0x7f00000003c0)="cf20c318859cf6234276485c814d8d5aa42ab5f0a39e646992c88e4a7423a5322eedc23984bfbb2d680273855aa9d9bbed482e6aea333caff8601b34b74c5bfe18c58a288781d1fc7f1d652ac1c0d748fe57c28ee9c2debe3bd1f058d989be405156479a3c745394ee8b3bf4cebfc402e7823ee2b4cc11dd295f61948864d004156c52c551cca5fd1868ba2f0743caf171829f87a19f903403477f19adc9860b3234b40c47212113ced73ed28b6f85233b22761d1428adb1fc7ec222a42071165d5c4c4a6dfc7c79f75125", 0xcb, 0x4000, &(0x7f00000000c0)={0x1a, 0xffff, 0xfffffffeffffffff, 0x7, 0x401, 0x8, @link_local={0x1, 0x80, 0xc2}}, 0x10) 2018/05/02 09:53:50 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) getsockopt$inet_sctp6_SCTP_ADAPTATION_LAYER(r0, 0x84, 0x7, &(0x7f00000000c0), &(0x7f0000000240)=0x4) socketpair$unix(0x1, 0x9, 0x0, &(0x7f0000000400)) 2018/05/02 09:53:50 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200400000000015, 0x2, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) ioctl$BLKROSET(r0, 0x125d, &(0x7f00000000c0)=0x8) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) INIT: Id "5" respawning too fast: disabled for 5 minutes INIT: Id "4" respawning too fast: disabled for 5 minutes INIT: Id "6" respawning too fast: disabled for 5 minutes INIT: Id "3" respawning too fast: disabled for 5 minutes INIT: Id "1" respawning too fast: disabled for 5 minutes 2018/05/02 09:53:50 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x0, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:50 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:50 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0xfffffffffffffffc, 0x0, 0x0, 0x0, 0x0, 0x50d, 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, 0x5}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:50 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:50 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 515.371679] FAULT_FLAG_ALLOW_RETRY missing 30 [ 515.376455] CPU: 1 PID: 31276 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 515.384069] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 515.393418] ffff8801bf0cf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 515.401456] ffff8801b935bc80 ffff8801bf0cfa20 0000000000000000 ffff8801bf0cfa48 [ 515.409505] ffffffff81cb75eb 0000000000000dca ffff8801cbbb5108 ffff8801b935bd8c [ 515.417535] Call Trace: [ 515.420109] [] dump_stack+0xc1/0x128 [ 515.425466] [] handle_userfault.cold.18+0x3e/0x51 [ 515.431956] [] ? debug_check_no_locks_freed+0x210/0x210 [ 515.438958] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 515.445440] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 515.452618] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 515.459442] [] ? handle_mm_fault+0x1267/0x28e0 [ 515.465820] [] ? handle_mm_fault+0x220f/0x28e0 [ 515.472024] [] handle_mm_fault+0x221d/0x28e0 [ 515.478054] [] ? vm_insert_mixed+0x200/0x200 [ 515.484087] [] __do_page_fault+0x5af/0xd50 [ 515.490812] [] ? mm_fault_error+0x2c0/0x2c0 [ 515.497193] [] ? exit_robust_list+0x220/0x220 [ 515.503316] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 515.509988] [] do_page_fault+0x27/0x30 [ 515.515500] [] page_fault+0x28/0x30 [ 515.520753] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 515.527569] [] ? SyS_pselect6+0x1be/0x540 [ 515.533339] [] ? SyS_select+0x1e0/0x1e0 [ 515.538936] [] ? SyS_futex+0x206/0x310 [ 515.544446] [] ? do_futex+0x1770/0x1770 [ 515.550045] [] ? security_file_ioctl+0x8f/0xc0 [ 515.556248] [] ? do_syscall_64+0x48/0x490 [ 515.562017] [] ? SyS_select+0x1e0/0x1e0 [ 515.567610] [] do_syscall_64+0x1a6/0x490 [ 515.573307] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:51 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0xfffffffffffffea9) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) setsockopt$SO_ATTACH_FILTER(r1, 0x1, 0x1a, &(0x7f0000000240)={0x1, &(0x7f00000000c0)=[{0x1000, 0x5, 0xfffffffffffffff9, 0x6}]}, 0x10) accept4(r3, &(0x7f00000003c0)=@llc, &(0x7f00000002c0)=0x80, 0x800) ioctl$SIOCGIFMTU(r0, 0x8921, &(0x7f0000000280)) 2018/05/02 09:53:51 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = socket$inet6(0xa, 0x807, 0x7) ioctl$sock_SIOCGSKNS(r1, 0x894c, &(0x7f0000000080)=0x100) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x3c8, &(0x7f0000011fc0)={0x0, 0x0, 0x0, 0x0, 0x2000, 0xfffffffffffffffe}, &(0x7f0000000040)={0x0, 0x0, 0x10000000000000, 0x0, 0x0, 0x0, 0x907}, &(0x7f0000000000)={0x0, 0x0, 0x400000000000}, &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:51 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) ioctl$sock_FIOGETOWN(r0, 0x8903, &(0x7f00000000c0)) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x0, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:51 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:52 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:52 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:52 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 516.550297] FAULT_FLAG_ALLOW_RETRY missing 30 [ 516.562873] CPU: 0 PID: 31325 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 516.570526] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 516.579873] ffff880191ebf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 516.587920] ffff8801d7765200 ffff880191ebfa20 0000000000000000 ffff880191ebfa48 [ 516.595958] ffffffff81cb75eb 0000000000000dca ffff88019ccc5108 ffff8801d776530c [ 516.604003] Call Trace: [ 516.606582] [] dump_stack+0xc1/0x128 [ 516.611956] [] handle_userfault.cold.18+0x3e/0x51 [ 516.618449] [] ? debug_check_no_locks_freed+0x210/0x210 [ 516.625461] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 516.631863] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 516.639053] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 516.645892] [] ? handle_mm_fault+0x1267/0x28e0 [ 516.652124] [] ? handle_mm_fault+0x220f/0x28e0 [ 516.658351] [] handle_mm_fault+0x221d/0x28e0 [ 516.664402] [] ? vm_insert_mixed+0x200/0x200 [ 516.670456] [] __do_page_fault+0x5af/0xd50 [ 516.676333] [] ? mm_fault_error+0x2c0/0x2c0 [ 516.682296] [] ? exit_robust_list+0x220/0x220 [ 516.688434] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 516.695097] [] do_page_fault+0x27/0x30 [ 516.700632] [] page_fault+0x28/0x30 [ 516.705902] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 516.712735] [] ? SyS_pselect6+0x1be/0x540 [ 516.718525] [] ? SyS_select+0x1e0/0x1e0 [ 516.724145] [] ? SyS_futex+0x206/0x310 [ 516.729679] [] ? do_futex+0x1770/0x1770 [ 516.735301] [] ? security_file_ioctl+0x8f/0xc0 [ 516.741528] [] ? do_syscall_64+0x48/0x490 [ 516.747315] [] ? SyS_select+0x1e0/0x1e0 [ 516.752932] [] do_syscall_64+0x1a6/0x490 [ 516.758658] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:52 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:52 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}, {}], 0x15555556, 0xffffffffffffff7d, &(0x7f00000001c0)={0x8}, 0xfffffffffffffd74) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) getsockopt$inet_sctp6_SCTP_DEFAULT_SNDINFO(r0, 0x84, 0x22, &(0x7f00000002c0)={0x9f, 0x8005, 0x5, 0x40, 0x0}, &(0x7f00000003c0)=0x10) sendmmsg$inet_sctp(r1, &(0x7f0000000140)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000000400)=[@dstaddrv4={0x0, 0x84, 0x7}, @sndinfo={0x0, 0x84, 0x2, {0x9f, 0x800e, 0x1ff, 0x8, r3}}, @sndinfo={0x0, 0x84, 0x2, {0x7fff, 0x8000, 0x10001, 0x3, r3}}, @prinfo={0x0, 0x84, 0x5, {0x30, 0x9ee}}, @authinfo={0x0, 0x84, 0x6, {0xfff}}]}], 0x3c004de6ee50ca1, 0x0) socketpair$unix(0x1, 0x101, 0x0, &(0x7f00000000c0)) 2018/05/02 09:53:53 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0)={0x0, 0xfffffffffffffffc, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffc}, &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) r1 = openat$selinux_checkreqprot(0xffffffffffffff9c, &(0x7f0000000000)='/selinux/checkreqprot\x00', 0x100, 0x0) ioctl$TIOCEXCL(r1, 0x540c) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:53 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) fchmodat(r1, &(0x7f00000000c0)='./file0\x00', 0xa9) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) openat$sequencer(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/sequencer\x00', 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$inet_smc(0x2b, 0x1, 0x0, &(0x7f00000000c0)) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:53 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 518.349122] FAULT_FLAG_ALLOW_RETRY missing 30 [ 518.353793] CPU: 1 PID: 31390 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 518.361406] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 518.370754] ffff88019cedf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 518.378800] ffff8801b935a300 ffff88019cedfa20 0000000000000000 ffff88019cedfa48 [ 518.386844] ffffffff81cb75eb 0000000000000dca ffff88019178a108 ffff8801b935a40c [ 518.394881] Call Trace: [ 518.397458] [] dump_stack+0xc1/0x128 [ 518.402813] [] handle_userfault.cold.18+0x3e/0x51 [ 518.409297] [] ? debug_check_no_locks_freed+0x210/0x210 [ 518.416303] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 518.422701] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 518.429882] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 518.436715] [] ? handle_mm_fault+0x1267/0x28e0 [ 518.442934] [] ? handle_mm_fault+0x220f/0x28e0 [ 518.449157] [] handle_mm_fault+0x221d/0x28e0 [ 518.455206] [] ? vm_insert_mixed+0x200/0x200 [ 518.461257] [] __do_page_fault+0x5af/0xd50 [ 518.467133] [] ? mm_fault_error+0x2c0/0x2c0 [ 518.473096] [] ? exit_robust_list+0x220/0x220 [ 518.479235] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 518.485894] [] do_page_fault+0x27/0x30 [ 518.491430] [] page_fault+0x28/0x30 [ 518.496698] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 518.503525] [] ? SyS_pselect6+0x1be/0x540 [ 518.509316] [] ? SyS_select+0x1e0/0x1e0 [ 518.514931] [] ? SyS_futex+0x206/0x310 [ 518.521418] [] ? do_futex+0x1770/0x1770 [ 518.527032] [] ? security_file_ioctl+0x8f/0xc0 [ 518.533253] [] ? do_syscall_64+0x48/0x490 [ 518.539041] [] ? SyS_select+0x1e0/0x1e0 [ 518.544663] [] do_syscall_64+0x1a6/0x490 [ 518.550365] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:54 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:54 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:54 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:54 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) accept(r1, &(0x7f0000000240)=@llc={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @dev}, &(0x7f00000000c0)=0x80) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:54 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1000000, 0x32, 0xffffffffffffffff, 0x0) openat$keychord(0xffffffffffffff9c, &(0x7f0000000000)='/dev/keychord\x00', 0x2, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:54 executing program 2: pipe2(&(0x7f0000000240)={0xffffffffffffffff, 0xffffffffffffffff}, 0x800) ioctl$VT_GETMODE(r0, 0x5601, &(0x7f0000000280)) r1 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r1, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) openat$selinux_status(0xffffffffffffff9c, &(0x7f00000000c0)='/selinux/status\x00', 0x0, 0x0) syz_mount_image$iso9660(&(0x7f00000002c0)='iso9660\x00', &(0x7f0000000340)='./file0\x00', 0x1, 0x3, &(0x7f00000004c0)=[{&(0x7f00000003c0)="178da884d1d5f36f1d071d5285cb9496c041c2d3a393636808384ecc2d406a432f516b0eeb5e77fc13cea828035ec2d4d05ce567fcd72e4ea47f2ea238f01a75d19b2b1ecbf218182c4ebe7fa2be12e3652c30c8954f966f9dcadde201a00e6bf3", 0x61, 0x1}, {&(0x7f0000000440)="953fcad585c9cea36e00429fd200a9526afa54c9c8cad666d076", 0x1a}, {&(0x7f0000000480)="7b5c6b5ddbe02c3705447f519ed552d44bd09844b15a931150ec3410489a72f49f666d519357aa2d9735a49f42a58a4a75fc1a", 0x33, 0x4}], 0x400, &(0x7f0000000540)={[{@overriderock='overriderockperm', 0x2c}, {@block={'block', 0x3d, [0x33, 0x9941607cd03a91b8, 0x33, 0x0]}, 0x2c}]}) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:54 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = fcntl$getown(r0, 0x9) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x9, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x9, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2}, r2, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:54 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:54 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa, 0x11}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) r1 = openat$selinux_mls(0xffffffffffffff9c, &(0x7f0000000000)='/selinux/mls\x00', 0x0, 0x0) setsockopt$IP_VS_SO_SET_EDIT(r1, 0x0, 0x483, &(0x7f0000000040)={0x7f, @rand_addr=0x2, 0x4e24, 0x2, 'dh\x00', 0x8, 0x7, 0x16}, 0x2c) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:55 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x80800) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000300)={{&(0x7f0000011000/0x2000)=nil, 0x2000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) socketpair$inet6_icmp(0xa, 0x2, 0x3a, &(0x7f0000000340)={0xffffffffffffffff, 0xffffffffffffffff}) getsockopt$inet6_IPV6_XFRM_POLICY(r1, 0x29, 0x23, &(0x7f0000000440)={{{@in=@rand_addr, @in6=@local}}, {{@in6=@loopback}, 0x0, @in6=@loopback}}, &(0x7f0000000380)=0xe8) pipe(&(0x7f0000000040)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$TIOCGPTPEER(r2, 0x5441, 0x5) r3 = syz_open_dev$usbmon(&(0x7f0000000000)='/dev/usbmon#\x00', 0x4, 0x80000) setsockopt$netlink_NETLINK_PKTINFO(r2, 0x10e, 0x3, &(0x7f00000001c0)=0x3, 0x4) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) userfaultfd(0x10000000000002) clone(0x0, &(0x7f0000000240)="28892cb507469c0adc741436849bc0a4a218ea463340b5854063a9643d4e02d45ae2f9bd2dde47c0b1c52ce49717baf9f27c3ce70090b2", &(0x7f0000000280), &(0x7f0000000200), &(0x7f0000000080)="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") ioctl$IOC_PR_REGISTER(r3, 0x401870c8, &(0x7f00000002c0)={0x229, 0x9, 0x1}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:55 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0x0, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:55 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:55 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in={0x2, 0x4e23, @local={0xac, 0x14, 0x14, 0xaa}}, 0x10, &(0x7f0000d1e000), 0x0, &(0x7f00000000c0)=[@init={0x18, 0x84, 0x0, {0x2, 0x3, 0xd44, 0x5}}, @prinfo={0x18, 0x84, 0x5, {0x0, 0x7}}], 0x30}], 0x1, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:55 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)=@ipv4_newroute={0x30, 0x18, 0x1, 0x0, 0x0, {0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff}, [@RTA_MULTIPATH={0xc, 0x9, {0x8}}, @RTA_FLOW={0x8, 0x4, 0x1}]}, 0x30}, 0x1}, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r0, &(0x7f00000000c0)={0x10000002}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 520.136200] FAULT_FLAG_ALLOW_RETRY missing 30 [ 520.144355] CPU: 1 PID: 31462 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 520.151985] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 520.161337] ffff88019c5c7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 520.169381] ffff8801b935b680 ffff88019c5c7a20 0000000000000000 ffff88019c5c7a48 [ 520.177424] ffffffff81cb75eb 0000000000000dca ffff8801c20e0908 ffff8801b935b78c [ 520.185464] Call Trace: [ 520.188045] [] dump_stack+0xc1/0x128 [ 520.193399] [] handle_userfault.cold.18+0x3e/0x51 [ 520.199886] [] ? debug_check_no_locks_freed+0x210/0x210 [ 520.206891] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 520.213287] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 520.220466] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 520.227310] [] ? handle_mm_fault+0x1267/0x28e0 [ 520.233537] [] ? handle_mm_fault+0x220f/0x28e0 [ 520.239756] [] handle_mm_fault+0x221d/0x28e0 [ 520.245803] [] ? vm_insert_mixed+0x200/0x200 [ 520.251855] [] __do_page_fault+0x5af/0xd50 [ 520.257735] [] ? mm_fault_error+0x2c0/0x2c0 [ 520.263696] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 520.270357] [] do_page_fault+0x27/0x30 [ 520.275883] [] page_fault+0x28/0x30 [ 520.281238] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 520.288068] [] ? SyS_pselect6+0x25a/0x540 [ 520.293986] [] ? SyS_select+0x1e0/0x1e0 [ 520.299604] [] ? SyS_futex+0x206/0x310 [ 520.305135] [] ? do_futex+0x1770/0x1770 [ 520.310747] [] ? security_file_ioctl+0x8f/0xc0 [ 520.316969] [] ? do_syscall_64+0x48/0x490 [ 520.322759] [] ? SyS_select+0x1e0/0x1e0 [ 520.328378] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:53:56 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:56 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 520.334078] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:56 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:56 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x1f, 0x400002000007ffff, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) getpeername$packet(r1, &(0x7f00000000c0), &(0x7f0000000240)=0x14) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000280)) 2018/05/02 09:53:56 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:56 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:56 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) r1 = accept4$bt_l2cap(r0, &(0x7f0000000000), &(0x7f0000000040)=0xe, 0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) r2 = gettid() capset(&(0x7f0000000080)={0x20071026, r2}, &(0x7f00000000c0)={0x7fff, 0x7, 0x81, 0xffffffff00000000, 0x7, 0x5}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) getsockopt$inet6_IPV6_XFRM_POLICY(0xffffffffffffff9c, 0x29, 0x23, &(0x7f0000001840)={{{@in=@multicast2, @in6=@ipv4={[], [], @rand_addr}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{}, 0x0, @in6=@mcast1}}, &(0x7f0000001940)=0xe8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000001980)={'ip6gre0\x00', r3}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:56 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:56 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = add_key(&(0x7f00000003c0)='big_key\x00', &(0x7f0000000400)={0x73, 0x79, 0x7a, 0x2}, 0x0, 0x0, 0xfffffffffffffff9) keyctl$restrict_keyring(0x1d, r2, &(0x7f0000000440)='.request_key_auth\x00', 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) seccomp(0x0, 0x1, &(0x7f00000004c0)={0x3, &(0x7f0000000480)=[{0x20, 0x8, 0x2, 0x4dd}, {0x4, 0x1, 0x9, 0x4}, {0x5, 0x3, 0x100000000}]}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) getsockopt$inet_sctp_SCTP_STREAM_SCHEDULER_VALUE(r1, 0x84, 0x7c, &(0x7f00000002c0)={0x0, 0x9, 0x81}, &(0x7f0000000340)=0x8) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) fstat(r0, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0, 0x0}) ioprio_set$uid(0x3, r4, 0x8000) r5 = getpid() sched_getaffinity(r5, 0x8, &(0x7f00000000c0)) 2018/05/02 09:53:56 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x40000000000000}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = syz_open_procfs(0x0, &(0x7f0000000000)='net/udp\x00') sendto$inet(0xffffffffffffffff, &(0x7f0000000300), 0x0, 0x0, &(0x7f0000821ff0)={0x2, 0x4e20}, 0x10) sendmmsg$unix(0xffffffffffffffff, &(0x7f0000001780), 0x4924924924925a8, 0x0) openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000000180)='/dev/loop-control\x00', 0x0, 0x0) tgkill(0x0, 0x0, 0x0) syz_mount_image$vfat(&(0x7f0000000000)='vfat\x00', &(0x7f0000000100)='./file0\x00', 0xe000, 0x1, &(0x7f0000000040)=[{&(0x7f0000000480)="eb3c906d6b66732e66617400020401000200077000f801", 0x17}], 0x0, &(0x7f0000000240)=ANY=[]) r4 = open(&(0x7f00000004c0)='./file0/file0\x00', 0x3fffa, 0x0) fallocate(r4, 0x1, 0x0, 0x40) close(r4) umount2(&(0x7f00000000c0)='./file0\x00', 0x0) ioctl$PIO_UNIMAP(0xffffffffffffffff, 0x4b67, &(0x7f00000003c0)={0x0, &(0x7f0000000380)}) ioctl$sock_SIOCDELDLCI(0xffffffffffffffff, 0x8981, &(0x7f0000000140)={'rose0\x00', 0x401}) syz_genetlink_get_family_id$team(&(0x7f00000001c0)='team\x00') getsockopt$inet_pktinfo(r3, 0x0, 0x8, &(0x7f0000000400)={0x0, @multicast2, @dev}, &(0x7f0000000440)=0xc) ioctl$ifreq_SIOCGIFINDEX_team(r3, 0x8933, &(0x7f00000006c0)={'team0\x00'}) getsockopt$inet_IP_XFRM_POLICY(0xffffffffffffffff, 0x0, 0x11, &(0x7f0000000700)={{{@in6=@dev, @in6=@remote}}, {{@in=@multicast1}, 0x0, @in=@rand_addr}}, &(0x7f0000000800)=0xe8) getsockopt$inet_pktinfo(0xffffffffffffffff, 0x0, 0x8, &(0x7f0000001700)={0x0, @rand_addr, @rand_addr}, &(0x7f0000001740)=0xc) accept4$packet(0xffffffffffffffff, &(0x7f0000001780)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @link_local}, &(0x7f00000017c0)=0x14, 0x80800) getsockopt$inet_mreqn(0xffffffffffffffff, 0x0, 0x0, &(0x7f00000018c0)={@remote, @broadcast}, &(0x7f0000001900)=0xc) accept4$packet(r4, &(0x7f0000000280)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @remote}, &(0x7f0000000240)=0x299, 0x800) getpeername$packet(r4, &(0x7f0000002740)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @link_local}, &(0x7f0000002780)=0x14) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000002880)={'ifb0\x00'}) [ 521.207711] capability: warning: `syz-executor3' uses deprecated v2 capabilities in a way that may be insecure 2018/05/02 09:53:57 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) getsockopt$IP_VS_SO_GET_TIMEOUT(r1, 0x0, 0x486, &(0x7f00000000c0), &(0x7f0000000240)=0xc) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:57 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt(r1, 0x7, 0x0, &(0x7f0000000240)="3dcd5f4a631d2aea38cf852e263918b2af875a5cbe29d1f3834d8ef51148f93b9cdda0977e2c215bd50383412c08733670de0643999c52ef2370a0ef00eaa84a42e1cbe00dda7e0d8e32266ef2fe03f871bbd2f59674df73effe40e80a5d4e3a14", 0x61) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:57 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 521.314049] FAT-fs (loop2): Directory bread(block 112) failed [ 521.346671] FAT-fs (loop2): Directory bread(block 113) failed 2018/05/02 09:53:57 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 521.375904] FAT-fs (loop2): Directory bread(block 114) failed [ 521.412607] FAT-fs (loop2): Directory bread(block 112) failed [ 521.449517] FAT-fs (loop2): Directory bread(block 113) failed [ 521.486430] FAT-fs (loop2): Directory bread(block 114) failed 2018/05/02 09:53:57 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 521.522850] FAT-fs (loop2): Directory bread(block 112) failed [ 521.555019] FAT-fs (loop2): Directory bread(block 113) failed 2018/05/02 09:53:57 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 521.580806] FAT-fs (loop2): Directory bread(block 114) failed 2018/05/02 09:53:57 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 521.735592] FAT-fs (loop2): Unrecognized mount option "™" or missing value 2018/05/02 09:53:57 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:57 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) setsockopt$inet_tcp_TCP_FASTOPEN_KEY(r0, 0x6, 0x21, &(0x7f0000000640)="71653578c0e5c46f5b0f53527d0fa144", 0x10) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) openat$ipvs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/net/ipv4/vs/snat_reroute\x00', 0x2, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f000000aff8)) unshare(0x400) pselect6(0x40, &(0x7f00000abfc0)={0x3ffffd}, &(0x7f0000768000), &(0x7f00007fbfc0), &(0x7f0000349000)={0x0, 0x989680}, &(0x7f0000f14000)={&(0x7f00001da000), 0x8}) getsockopt$inet_sctp_SCTP_CONTEXT(r0, 0x84, 0x11, &(0x7f0000002880)={0x0, 0x8}, &(0x7f00000028c0)=0x8) getsockopt$inet_sctp_SCTP_DELAYED_SACK(r1, 0x84, 0x10, &(0x7f0000002900)=@sack_info={r2, 0x4b79, 0x7ff}, &(0x7f0000002940)=0xc) setsockopt$inet_sctp6_SCTP_DELAYED_SACK(r0, 0x84, 0x10, &(0x7f0000000680)=@assoc_value={r2, 0x6b}, 0x8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0xffffffffffffffff, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) syz_mount_image$ceph(&(0x7f00000000c0)='ceph\x00', &(0x7f0000000240)='./file0\x00', 0x7f, 0x3, &(0x7f00000005c0)=[{&(0x7f0000000280)="71abd77abe5b76afc6404ab747acc09339bef1e51731e53ad4a0c16300fea6f536cb06edaa0af00fa7b7b6877a7b72948820588fd3e7656ebf07324778952ab079ec9f12c462f367654080f4baeb2c11e9498d35c43bde86c63e826914bf31293583388847dc03bcf7ea86418b", 0x6d, 0x2}, {&(0x7f00000003c0)="eb59aef2bd1053238d351c1d4285312c9b78fa9e77b4301cffab55b276af8a21845f1ab51c9f592025beedc605ebbd4dfc9c2e1a847c10eef4b683e5b7e69279da7bfc1f325231eaed11e48f673c96029bba9e4188d8325813c0ed7f9cf725652c48db69e1ce098636e49b43b080c5814c1d91ff7cbe7bcfa77a4c039f510b85229e7a3c9d67e249b5fe11e4ed7eb5237d3c3e3a4c0ca8eb696a60f83da4b10c38914c03fb809c33b9d44fc91319055288a558f4b8dd6803296b394d732277364a1dfc76fefa052fb29a49249b97e6e22c602f", 0xd3, 0x3ff}, {&(0x7f00000004c0)="c4cce96a0614e4608d11325859982008aaabb3a75b709af06ba61b16d5f207df9c132ad691a47c474fa2d9ff1fbd5b20d0183513a3a18ec7af355ce254cde0a016710c4efc020149710e5f964a133226b11dd48a6a4ebc655e356d3e2f72fa0abd5e499d17e00eed1a4f95c4ab60e856e952097aea24071331c3d294d6753787e0a9343b6fe37385078a043099ae4c4de3089586e9e219297b9cde93865eacf8735f7cc69f8fd76f797de49dd94dcd94a7b58583ec3f510488f8092efdcf81a01ed4ec1590df51479a2c909d6aca36616c53b7fbfed84edc45939c3e53410168f9a486a15ca4f3e6c2de89c8ac2d8b52a0037833b1b37165", 0xf8, 0x6}], 0x1000000, &(0x7f0000000340)='/dev/snapshot\x00') setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) openat$selinux_load(0xffffffffffffff9c, &(0x7f0000002980)='/selinux/load\x00', 0x2, 0x0) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) setsockopt$inet_udp_encap(r1, 0x11, 0x64, &(0x7f0000002840)=0x7, 0x4) [ 522.010983] FAULT_FLAG_ALLOW_RETRY missing 30 [ 522.016073] CPU: 1 PID: 31515 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 522.023690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 522.033041] ffff8801cf36f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 522.041090] ffff8801b935b380 ffff8801cf36fa20 0000000000000000 ffff8801cf36fa48 [ 522.049130] ffffffff81cb75eb 0000000000000dca ffff8801b924a108 ffff8801b935b48c [ 522.057168] Call Trace: [ 522.059744] [] dump_stack+0xc1/0x128 [ 522.065098] [] handle_userfault.cold.18+0x3e/0x51 [ 522.071582] [] ? debug_check_no_locks_freed+0x210/0x210 [ 522.078587] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 522.084996] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 522.092264] [] ? handle_mm_fault+0x1267/0x28e0 [ 522.098488] [] ? handle_mm_fault+0x220f/0x28e0 [ 522.104713] [] handle_mm_fault+0x221d/0x28e0 [ 522.110768] [] ? vm_insert_mixed+0x200/0x200 [ 522.117437] [] __do_page_fault+0x5af/0xd50 [ 522.123311] [] ? mm_fault_error+0x2c0/0x2c0 [ 522.129273] [] ? exit_robust_list+0x220/0x220 [ 522.135407] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 522.142063] [] do_page_fault+0x27/0x30 [ 522.147591] [] page_fault+0x28/0x30 [ 522.152857] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 522.159745] [] ? SyS_pselect6+0x1be/0x540 [ 522.165535] [] ? SyS_select+0x1e0/0x1e0 [ 522.171148] [] ? SyS_futex+0x206/0x310 [ 522.176676] [] ? do_futex+0x1770/0x1770 [ 522.182290] [] ? check_preemption_disabled+0x3b/0x170 [ 522.189128] [] ? __task_pid_nr_ns+0x20e/0x450 [ 522.195262] [] ? do_syscall_64+0x48/0x490 [ 522.201050] [] ? SyS_select+0x1e0/0x1e0 [ 522.206664] [] do_syscall_64+0x1a6/0x490 [ 522.212364] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:58 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:58 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:58 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0xfffffffffffffc1c) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:58 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:58 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:58 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) socketpair$inet_sctp(0x2, 0x0, 0x84, &(0x7f00000000c0)) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:58 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000080)={0xaa, 0x1}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000000)={{&(0x7f0000016000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:58 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000280)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) setsockopt$SO_BINDTODEVICE(r3, 0x1, 0x19, &(0x7f00000000c0)='ip6_vti0\x00', 0x10) 2018/05/02 09:53:58 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) write$binfmt_misc(r0, &(0x7f00000000c0)=ANY=[@ANYBLOB="73797a3082da339de8243a0046b5c10bf466d5f7c5e2ac7832aaa6ea9f27b312c2f62fcfad5b31f4519fed778e6a49280b000000000000d82297f604df289293bdc93071491e4f980de63d3148b51efa252d7e7112d2923ad4abc767ccd1ffc1b03d9fb96a9b52ebaa54a152e121e4ff15ae52cb23df437edc64b9380e80e191b7e26e2072492bae26f563080550bc3fb8c519ca6d78bf000000000000000000"], 0x9b) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:53:58 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:58 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:59 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 523.616985] FAULT_FLAG_ALLOW_RETRY missing 30 [ 523.621652] CPU: 1 PID: 31598 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 523.629264] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 523.638613] ffff8801b87ef850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 523.646656] ffff8801b935aa80 ffff8801b87efa20 0000000000000000 ffff8801b87efa48 [ 523.654706] ffffffff81cb75eb 0000000000000dca ffff8801b743e908 ffff8801b935ab8c [ 523.665712] Call Trace: [ 523.668297] [] dump_stack+0xc1/0x128 [ 523.673659] [] handle_userfault.cold.18+0x3e/0x51 [ 523.680846] [] ? debug_check_no_locks_freed+0x210/0x210 [ 523.687856] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 523.694257] [] ? preempt_schedule+0x25/0x30 [ 523.700223] [] ? ___preempt_schedule+0x16/0x18 [ 523.706522] [] ? handle_mm_fault+0x1267/0x28e0 [ 523.712749] [] ? handle_mm_fault+0x220f/0x28e0 [ 523.718973] [] handle_mm_fault+0x221d/0x28e0 [ 523.725026] [] ? vm_insert_mixed+0x200/0x200 [ 523.731081] [] __do_page_fault+0x5af/0xd50 [ 523.736970] [] ? mm_fault_error+0x2c0/0x2c0 [ 523.742938] [] ? exit_robust_list+0x220/0x220 [ 523.749072] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 523.755727] [] do_page_fault+0x27/0x30 [ 523.761252] [] page_fault+0x28/0x30 [ 523.766519] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 523.773351] [] ? SyS_pselect6+0x1be/0x540 [ 523.779147] [] ? SyS_select+0x1e0/0x1e0 [ 523.784770] [] ? SyS_futex+0x206/0x310 [ 523.790301] [] ? do_futex+0x1770/0x1770 [ 523.795918] [] ? security_file_ioctl+0x8f/0xc0 [ 523.802146] [] ? do_syscall_64+0x48/0x490 [ 523.807941] [] ? SyS_select+0x1e0/0x1e0 2018/05/02 09:53:59 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 523.813557] [] do_syscall_64+0x1a6/0x490 [ 523.819259] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:53:59 executing program 1: r0 = getpid() syz_emit_ethernet(0x1, &(0x7f0000c57000)=ANY=[@ANYBLOB="5ed6"], &(0x7f0000ea3000)) pause() sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000040)=[{&(0x7f0000000440)=@file={0x0, './file0\x00'}, 0x6e, &(0x7f00000016c0)=[{&(0x7f00000004c0)="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", 0xf47}], 0x1, &(0x7f0000001700)}], 0x1, 0x0) process_vm_readv(r0, &(0x7f0000001400), 0x1, &(0x7f0000000000)=[{&(0x7f0000002780)=""/204, 0xd7e1e1d24b36aac5}, {&(0x7f0000002880)=""/183, 0x9}], 0x2, 0x0) 2018/05/02 09:53:59 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:59 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_inet_SIOCGIFDSTADDR(r0, 0x8917, &(0x7f00000000c0)={'bond0\x00', {0x2, 0x4e24, @multicast1=0xe0000001}}) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:59 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:59 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x100000000000600, 0x13f) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:59 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:53:59 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f00000000c0)=0x808, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:00 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000)={0x2000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3}, &(0x7f0000000040), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) connect$netrom(r0, &(0x7f0000000000)=@ax25={0x3, {"bc990783f740d1"}, 0xfffffffffffffffe}, 0x10) modify_ldt$write2(0x11, &(0x7f0000000080)={0x20, 0xffffffff, 0x400, 0x3f, 0x30, 0x7ce4111, 0x200, 0x1000, 0xffff, 0x81}, 0x10) ioctl$UFFDIO_ZEROPAGE(r0, 0xc020aa04, &(0x7f00000000c0)={&(0x7f0000014000/0x4000)=nil, 0x4000}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:00 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x800) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = openat$null(0xffffffffffffff9c, &(0x7f0000000000)='/dev/null\x00', 0x103002, 0x0) ioctl$LOOP_CHANGE_FD(r1, 0x4c06, r0) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000080)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) [ 525.274698] FAULT_FLAG_ALLOW_RETRY missing 30 [ 525.279287] CPU: 0 PID: 31647 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 525.287329] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 525.296667] ffff88019259f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 525.304716] ffff8801b935a780 ffff88019259fa20 0000000000000000 ffff88019259fa48 [ 525.312714] ffffffff81cb75eb 0000000000000dca ffff8801cc72b908 ffff8801b935a88c [ 525.320696] Call Trace: [ 525.323264] [] dump_stack+0xc1/0x128 [ 525.328608] [] handle_userfault.cold.18+0x3e/0x51 [ 525.335083] [] ? debug_check_no_locks_freed+0x210/0x210 [ 525.342078] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 525.348456] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 525.355616] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 525.362430] [] ? handle_mm_fault+0x1267/0x28e0 [ 525.368633] [] ? handle_mm_fault+0x220f/0x28e0 [ 525.374838] [] handle_mm_fault+0x221d/0x28e0 [ 525.380870] [] ? vm_insert_mixed+0x200/0x200 [ 525.387340] [] __do_page_fault+0x5af/0xd50 [ 525.393198] [] ? mm_fault_error+0x2c0/0x2c0 [ 525.399143] [] ? exit_robust_list+0x220/0x220 [ 525.405270] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 525.411906] [] do_page_fault+0x27/0x30 [ 525.417415] [] page_fault+0x28/0x30 [ 525.422667] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 525.429479] [] ? SyS_pselect6+0x1be/0x540 [ 525.435250] [] ? SyS_select+0x1e0/0x1e0 [ 525.441291] [] ? SyS_futex+0x206/0x310 [ 525.446803] [] ? do_futex+0x1770/0x1770 [ 525.452416] [] ? security_file_ioctl+0x8f/0xc0 [ 525.458622] [] ? do_syscall_64+0x48/0x490 [ 525.464408] [] ? SyS_select+0x1e0/0x1e0 [ 525.470006] [] do_syscall_64+0x1a6/0x490 [ 525.475702] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:01 executing program 1: r0 = getpid() syz_emit_ethernet(0x1, &(0x7f0000c57000)=ANY=[@ANYBLOB="1d21"], &(0x7f0000ea3000)) pause() sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000040)=[{&(0x7f0000000440)=@file={0x0, './file0\x00'}, 0x6e, &(0x7f00000016c0)=[{&(0x7f00000004c0)="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", 0xf47}], 0x1, &(0x7f0000001700)}], 0x1, 0x0) process_vm_readv(r0, &(0x7f0000001400), 0x1, &(0x7f0000000000)=[{&(0x7f0000002780)=""/204, 0xd7e1e1d24b36aac5}, {&(0x7f0000002880)=""/183, 0x9}], 0x2, 0x0) 2018/05/02 09:54:01 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:01 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:01 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000280)='/dev/snapshot\x00', 0x3fe, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x26f) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:01 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:01 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = openat$loop_ctrl(0xffffffffffffff9c, &(0x7f0000000000)='/dev/loop-control\x00', 0x2c40, 0x0) fcntl$F_SET_RW_HINT(r0, 0x40c, &(0x7f0000000040)=0x5) r1 = userfaultfd(0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000002fe8)={0xaa, 0x6}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r1, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:01 executing program 5: r0 = openat$vga_arbiter(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/vga_arbiter\x00', 0x4500, 0x0) getsockopt$inet_sctp6_SCTP_GET_PEER_ADDR_INFO(0xffffffffffffff9c, 0x84, 0xf, &(0x7f00000004c0)={0x0, @in6={{0xa, 0x4e20, 0x5, @ipv4={[], [0xff, 0xff], @rand_addr=0x2}, 0x100000000}}, 0x3ff, 0xdd0, 0x100, 0x1, 0x101}, &(0x7f0000000580)=0x98) getsockopt$inet_sctp6_SCTP_STATUS(0xffffffffffffffff, 0x84, 0xe, &(0x7f0000000b80)={0x0, 0x8, 0x2f3, 0x401, 0x0, 0x9, 0xfffffffffffffff8, 0xd93, {0x0, @in6={{0xa, 0x4e23, 0x3, @empty, 0x80}}, 0x80000001, 0x1, 0x2, 0x1}}, &(0x7f0000000c40)=0xb0) getsockopt$inet_sctp6_SCTP_STATUS(0xffffffffffffff9c, 0x84, 0xe, &(0x7f00000054c0)={0x0, 0x81, 0x7, 0xff, 0x6, 0x8, 0xf5a5f0b, 0x20, {0x0, @in6={{0xa, 0x4e22, 0x81, @empty, 0xffffffffffff8a16}}, 0x1f, 0xbac7, 0x9b23, 0x6, 0xff8}}, &(0x7f0000005580)=0xb0) getsockopt$inet_sctp_SCTP_LOCAL_AUTH_CHUNKS(0xffffffffffffffff, 0x84, 0x1b, &(0x7f00000055c0)={0x0, 0x1000, "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"}, &(0x7f0000006600)=0x1008) sendmmsg$inet_sctp(r0, &(0x7f0000006780)=[{&(0x7f0000000240)=@in6={0xa, 0x4e23, 0x10001, @mcast2={0xff, 0x2, [], 0x1}, 0xc00000000000000}, 0x1c, &(0x7f0000000340)=[{&(0x7f0000000280)="755bcf631423300f796851e352c456", 0xf}, {&(0x7f00000002c0)="9e7cc3b78b681bb440ad31fc25e419d1f22a3ef8264523e7584797c60f1b1702d7d549ff741057ac", 0x28}, {&(0x7f00000003c0)="0c2825305c3506cba66f2d5197356828c9831a425393211017513a7e97e0c85134f834e9d9394913603115a3073ef725b24b5a1dea6b1a6be0f6a9223b8b89f033e6f9327a196d6caf59275bfba69543c08851a5b3a0a1095aab9ce8fd30c3032cf8f882ca95ea3fb56f02db277bb32286819eb487244f89a902720623c43682d61655d63f4ae28c32111431b6a4d4d77c6ca30651622c38303dbef0e863d9b38cab9a434086cbeff20f5dc110b522956fe92b998dd3eb21df8e634b46846de5f80a693bb67488d4d241e911", 0xcc}], 0x3, &(0x7f00000005c0)=[@sndinfo={0x20, 0x84, 0x2, {0x9a4b, 0x8000, 0x200, 0xf8ac, r1}}, @init={0x18, 0x84, 0x0, {0x4, 0x8, 0x6, 0x8}}, @authinfo={0x18, 0x84, 0x6, {0x4}}, @prinfo={0x18, 0x84, 0x5, {0x30, 0x4}}, @init={0x18, 0x84, 0x0, {0x8, 0x87, 0xd90c, 0xa8}}, @init={0x18, 0x84, 0x0, {0x120000000000, 0x7fffffff, 0x20, 0x6}}], 0x98}, {&(0x7f0000000680)=@in6={0xa, 0x4e21, 0x33d8, @mcast2={0xff, 0x2, [], 0x1}, 0x1e}, 0x1c, &(0x7f0000000780)=[{&(0x7f00000006c0)="8cc357131feeb0c33307fdea5fa10949d3e80b25d333d05b53d7f375b5f7917a9bddf689a241ae46e1ab126af2685dd40ddc300e391f0d1516eda94c50f42a1bbdd5fe1c5e25a7ea1efef8625f4ae28e9e359dc3ca243082d4808fc63a9416703d598d7ae28d4ef71879ab5908c40339b2cb68aa35cd6f4a3c7e2aeda8bd5b0cd2a26eee021c277d93", 0x89}], 0x1, &(0x7f00000007c0)=[@dstaddrv6={0x20, 0x84, 0x8, @mcast1={0xff, 0x1, [], 0x1}}], 0x20, 0x4000800}, {&(0x7f0000000800)=@in6={0xa, 0x4e22, 0x3f, @remote={0xfe, 0x80, [], 0xbb}}, 0x1c, &(0x7f0000000b40)=[{&(0x7f0000000840)="176717c487bc25444adb755afa05e5c6a48e71918a23aabeb1c3db8d48f53a9af2d33cb47dffada7fdaaf94b537aed0ea8e8e331021edf75677b9f3502a78242e809c60be37ac51993f9f5f0f66df4a8020300e59811422975243910d79be2021a8c1cf8925aecf53c1c7e6e1a944507f38f4e901242ab532e94a70ed163935f80d0ecf87f8d7cba504df965c9bc6268682cb01e798dad5eb7dea2155ce44397ec04ff23903f0ca8f0e7134e14ca7bc19a6a9b69b0ad0fc7ce725bb4b2880935612b2a0a7b1ae1603068eb3cf243718c8763d6f29697ef5b92", 0xd9}, {&(0x7f0000000940)="f57c52dc30348994295e31e4e0a4e357ffb98bee583798a3556540cbee20011e359d1912177493a5be1c0dc428e81e99c81f1e65473a7e51f96e6424d812b9102323e39a4ff2e3737d857fe77d559498e3110663f18a20f2b43d59c3fce083e0d98ff6e325e95b6f1b275872e0ff54e501be2e8ded33c877b13efd86a767a8d1137d7579bc0a787620b882790591f215829ba5818c1a9faee69f6eb028c136d9c3f40072abd0e23fd94e7792d4b8e4fe6dc8c217a4f0a2da2d7486c0459b9d3b27624c0d190d30db57463722", 0xcc}, {&(0x7f0000000a40)="a47ab26e6ecbeabab21b40a219cbd0ff040601fed8fd83bf85ca3d72fa81f7d2f4468f840edce029d7e0219cf5b6be57ba0a2cea38251c9ff1553f506aa4cb8ba193ec029168c9da81da88537aefbadfc1427da7a4aaec5099f8ee38f3de008be4cb436520ee92a63bcd3ad48d4b1db6630126171636dff2938615fca817ef41bceede926d20197ae08b31d992528aeb4397b50b8e99e424b02f22a22204ea603c3926333be92fb089653c7cbc2a889914aa6a188808a5544b8cfe6d6341d082dd03cc19623b1e4a7b0a014362402ac86d805d77d63f746056532be54d16aed2ba812c3de10f1a93b31342f82eed", 0xee}], 0x3, &(0x7f0000000c80)=[@authinfo={0x18, 0x84, 0x6, {0xe200}}, @dstaddrv4={0x18, 0x84, 0x7, @remote={0xac, 0x14, 0x14, 0xbb}}, @sndrcv={0x30, 0x84, 0x1, {0x3, 0x0, 0xa, 0x6, 0x7fff, 0x132, 0x0, 0x7c8, r2}}, @init={0x18, 0x84, 0x0, {0xc6, 0x100000001, 0x8, 0x7fffffff}}, @prinfo={0x18, 0x84, 0x5, {0x30, 0x401}}, @authinfo={0x18, 0x84, 0x6, {0x6}}, @dstaddrv4={0x18, 0x84, 0x7, @rand_addr=0x810}, @prinfo={0x18, 0x84, 0x5, {0x10, 0x8b}}, @dstaddrv6={0x20, 0x84, 0x8, @remote={0xfe, 0x80, [], 0xbb}}], 0xf8, 0x84}, {&(0x7f0000000d80)=@in6={0xa, 0x4e22, 0x3ff, @mcast1={0xff, 0x1, [], 0x1}, 0x1}, 0x1c, &(0x7f0000001040)=[{&(0x7f0000000dc0)="95520b9185a94af731b39410232007f97603cf3b9a6b0fec4e3558d930a23839c82567ecbb2ee207fc10a40aa70e13ff88932ecef6e28ef38b15ab4ff6cfde8b8425bc4a1c4bb8d03ec541672209efb0d352e7655312f206948ae7cbda0abc5dff8c4344e6705e4ba447778220f767aebe24a75606eed9b70025e0245e9b31e308e91a4883933021e5a8f40d2f46a625ca212975a31d3f8da2b9761d8ca84f7f279ef2e23e0b74443690ce8a2b8ea541af9708d78751b88f4adefab4fc983978d77c975c64537752b8", 0xc9}, {&(0x7f0000000ec0)="ebf5ebe5386a74b53e88416d9b09b8c2d7f72ed9fa9a8f901c0e965f9b76a858f5dfbf5dc3d6aabc40a47a817c1078719394d0cd2c0e8deed222d3b5cbda56175b20fdbfec79c575aeb38993ab336bdac84c0c4fb782db404cf7c4f4a801f89f716238478c845424d54ffdff65e4ffdcbd6de32c5d7a92957231370d56600b73232635443ee2d850a29833f98a8bbff27f4932238364e694e093400c425dae8cfd15e0096a14ad4aec7f85c39ddc317a0cd9150684bcd49911df6787d9e0b477", 0xc0}, 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{&(0x7f0000003f80)="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0x1000}], 0x7, &(0x7f0000005000)=[@init={0x18, 0x84, 0x0, {0x1, 0x4, 0x1f, 0x4}}, @init={0x18, 0x84, 0x0, {0x527, 0x8001, 0x6, 0xe3}}, @dstaddrv6={0x20, 0x84, 0x8, @local={0xfe, 0x80, [], 0xaa}}, @prinfo={0x18, 0x84, 0x5, {0x0, 0x800}}, @init={0x18, 0x84, 0x0, {0x81, 0x12000000, 0x2, 0x1}}, @dstaddrv4={0x18, 0x84, 0x7, @loopback=0x7f000001}], 0x98, 0x20000000}, {&(0x7f00000050c0)=@in={0x2, 0x4e24, @remote={0xac, 0x14, 0x14, 0xbb}}, 0x10, &(0x7f0000005440)=[{&(0x7f0000005100)="c4e9e84e8684a9d979ae8768c46416cff9f5f04c4f406ccaaab54a8e3b2963241c1616789779fd1b84aadd429027b42bf27c", 0x32}, {&(0x7f0000005140)="ad9144a9eb9d95e4078cb6f877305ffc28677ffa0a971dc952d2ce591045ff8e4a239d859a51e5a406266e13d3ab8b983324d3135047ae00651656371d7496d054b4a44453af5d8c8bc41ee8418a45194390a4bc71f88467c05bfea3a5730e4f965d70dc408b36f84c1975ebea6b28d62eff5ae026a315f0d2533e7f428ab5a5e02bc749ca8b4d0b2397b1b107cb6739b75ee7c2a013b6ad0d44c27544d79ff095b63aeb0ed6cf", 0xa7}, {&(0x7f0000005200)="1cf57ffc67c5e20062f5381eab453e2207d8e780e0e5a1fd1da9ceae3c7b2a1dcebfa9433a57d78683a66d418e99692feb47d7c9a2511e3ef044a938d684ec530ff630c62c1632a28f617baff898541203488f9069bdca9c64733ef72fdead01f6bb4c783d88670f86b5749c7240586328f6384816878c", 0x77}, {&(0x7f0000005280)="b70ec9fd337681913eb8d3136bb05900eca9d62d6514e8140e358d23d511", 0x1e}, {&(0x7f00000052c0)="779183baf0cc96457913308464a991cf3320e2470a05b3966a6f62cedbf9357e9c8416730bfaa34739bb3c91454a9356460844403783a9b349f22b31260bce16c86e98ca65f939bb85d2", 0x4a}, {&(0x7f0000005340)="7be8464ac3337ea8b8923e53372267906d0fceee5d455d03f8995520440284047d5d794e1c073aeaff92b1304db16efa0967692a", 0x34}, {&(0x7f0000005380)="cf04f7f1041e7ca174c1938a83d7ada33c0880dfe4adc454e025eb148d6302fc53cbeed6cb", 0x25}, {&(0x7f00000053c0)="4d173103451425da55a571d5b746837059bace3ad325036d4649f08260e09e1fbad58aa8be3db82bc8de8c041f95d5977093c535634394d043c14c72b1adc65bba2230650d1124f731bd5065f7da986037aec45fbaf0c6ca965f21bca13e4c382b4ca39c6c8b1c66fb3b61fd81f44a716b8fff2c123ad5791fbe782b1291", 0x7e}], 0x8, &(0x7f0000006640)=[@sndrcv={0x30, 0x84, 0x1, {0x600000000000, 0x4, 0x202, 0x3d3, 0x5, 0xa3, 0x7, 0x9a73, r3}}, @dstaddrv4={0x18, 0x84, 0x7, @loopback=0x7f000001}, @sndrcv={0x30, 0x84, 0x1, {0xfffffffffffffffb, 0x81, 0x8000, 0x1000, 0x4, 0xfffffffffffffffc, 0x3f, 0x1, r4}}, @dstaddrv6={0x20, 0x84, 0x8}, @dstaddrv4={0x18, 0x84, 0x7, @multicast2=0xe0000002}, @prinfo={0x18, 0x84, 0x5, {0x20, 0x5}}, @init={0x18, 0x84, 0x0, {0x2, 0x7, 0x3, 0x5}}, @prinfo={0x18, 0x84, 0x5, {0x0, 0x1}}, @prinfo={0x18, 0x84, 0x5, {0x0, 0x1}}, @dstaddrv4={0x18, 0x84, 0x7, @local={0xac, 0x14, 0x14, 0xaa}}], 0x128, 0x24000001}], 0xa, 0x4008000) r5 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r5, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r6 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r6, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r6, &(0x7f0000000200)={0x11, 0x0, r7, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r6, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r6, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:01 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f00000000c0)={'syz_tun\x00'}) accept4$packet(r0, &(0x7f0000000240)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @remote}, &(0x7f0000000280)=0x14, 0x80000) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000340)={'team_slave_0\x00', r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$bt_BT_SECURITY(r1, 0x112, 0x4, &(0x7f00000002c0)={0x9, 0x4}, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:01 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) pipe2(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}, 0x84800) epoll_ctl$EPOLL_CTL_DEL(r1, 0x2, r0) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000180)={{&(0x7f0000012000/0x1000)=nil, 0x1000}, 0x1}) 2018/05/02 09:54:01 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_ipx_SIOCAIPXPRISLT(r1, 0x89e1, &(0x7f00000000c0)=0x9) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$sock_proto_private(r1, 0x89e6, &(0x7f0000000240)="c14f5a274a45e3190192f8e65282af18f6696fb7b19160fdd0055f9a4476edf4e327a237bdec48528bc4508dfa02ef8d932e16fd3f619a8638497e823a02b268f63f127b4e51b569afc4a8bcd0715ca5502f4f9af10e8d79f072980fe22d36c02e") setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 526.468077] FAULT_FLAG_ALLOW_RETRY missing 30 [ 526.472657] CPU: 0 PID: 31690 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 526.480259] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 526.489594] ffff8801d0497850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 526.497585] ffff8801d7764600 ffff8801d0497a20 0000000000000000 ffff8801d0497a48 [ 526.505574] ffffffff81cb75eb 0000000000000dca ffff8801b90e2108 ffff8801d776470c [ 526.513562] Call Trace: [ 526.516128] [] dump_stack+0xc1/0x128 [ 526.521472] [] handle_userfault.cold.18+0x3e/0x51 [ 526.527939] [] ? debug_check_no_locks_freed+0x210/0x210 [ 526.534926] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 526.541305] [] ? preempt_schedule+0x25/0x30 [ 526.547247] [] ? ___preempt_schedule+0x16/0x18 [ 526.553452] [] ? handle_mm_fault+0x1267/0x28e0 [ 526.559656] [] ? handle_mm_fault+0x220f/0x28e0 [ 526.565857] [] handle_mm_fault+0x221d/0x28e0 [ 526.571889] [] ? vm_insert_mixed+0x200/0x200 [ 526.577921] [] __do_page_fault+0x5af/0xd50 [ 526.583779] [] ? mm_fault_error+0x2c0/0x2c0 [ 526.589721] [] ? exit_robust_list+0x220/0x220 [ 526.595840] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 526.602476] [] do_page_fault+0x27/0x30 [ 526.607997] [] page_fault+0x28/0x30 [ 526.613247] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 526.620070] [] ? SyS_pselect6+0x1be/0x540 [ 526.625848] [] ? SyS_select+0x1e0/0x1e0 [ 526.631447] [] ? SyS_futex+0x206/0x310 [ 526.636958] [] ? do_futex+0x1770/0x1770 [ 526.642558] [] ? security_file_ioctl+0x8f/0xc0 [ 526.648774] [] ? do_syscall_64+0x48/0x490 [ 526.654550] [] ? SyS_select+0x1e0/0x1e0 [ 526.660145] [] do_syscall_64+0x1a6/0x490 [ 526.665830] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:02 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) r1 = openat$rtc(0xffffffffffffff9c, &(0x7f0000000000)='/dev/rtc0\x00', 0x800, 0x0) ioctl$EVIOCGSND(r1, 0x8040451a, &(0x7f0000000040)=""/223) 2018/05/02 09:54:02 executing program 7: perf_event_open(&(0x7f000025c000)={0x2, 0x70, 0x3e5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffff7fffffffffff}, 0x0, 0x0, 0xffffffffffffffff, 0x0) syz_emit_ethernet(0x2a, &(0x7f0000000080)={@local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, @empty, [], {@ipv4={0x800, {{0x5, 0x4, 0x0, 0x0, 0x1c, 0x0, 0x0, 0x0, 0x0, 0x0, @local={0xac, 0x223, 0x14, 0xaa}, @dev={0xac, 0x14, 0x14, 0xb}}, @udp={0x0, 0x0, 0x8}}}}}, &(0x7f00000000c0)) 2018/05/02 09:54:02 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffc}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:02 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)) 2018/05/02 09:54:02 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f00000003c0)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffff, &(0x7f00000001c0)={0x8}, 0xfffffffffffffffd) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 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, 0xde1, 0x0, 0x7f, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0xffffffffffffffff) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000140)={0x11, 0x0, r2, 0x1, 0x3, 0x6, @local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}}, 0xfffffe4f) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) openat$snapshot(0xffffffffffffff9c, &(0x7f0000000100)='/dev/snapshot\x00', 0x80, 0x0) ioctl$TIOCGPGRP(r0, 0x540f, &(0x7f00000000c0)=0x0) ioctl$sock_SIOCSPGRP(r0, 0x8902, &(0x7f0000000240)=r3) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:02 executing program 1: r0 = getpid() syz_emit_ethernet(0x1, &(0x7f0000c57000)=ANY=[@ANYBLOB='X0'], &(0x7f0000ea3000)) pause() sendmmsg$unix(0xffffffffffffffff, &(0x7f0000005e00)=[{&(0x7f0000000440)=@file={0x0, './file0\x00'}, 0x6e, &(0x7f00000016c0)=[{&(0x7f00000004c0)="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", 0xf47}], 0x1, &(0x7f0000001700)}], 0x1, 0x0) process_vm_readv(r0, &(0x7f0000001400), 0x1, &(0x7f0000000000)=[{&(0x7f0000002780)=""/204, 0xd7e1e1d24b36aac5}, {&(0x7f0000002880)=""/183, 0x9}], 0x2, 0x0) 2018/05/02 09:54:02 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:02 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:02 executing program 7: r0 = getpid() syz_emit_ethernet(0x1, &(0x7f0000c57000)=ANY=[@ANYBLOB="bcd64a"], &(0x7f0000ea3000)) pause() sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000040)=[{&(0x7f0000000440)=@file={0x0, './file0\x00'}, 0x6e, &(0x7f00000016c0)=[{&(0x7f00000004c0)="47e37ad0cf344394bf43f96b36e7c2b8a31c89bfa71e3d04181fbd79e32e78c206f46261c8694cbca0f0c3a36b654599d7402360f4de392c4d02352e2bfa9eac5ad6bf23f887cd99d932ebe452444a3d7e36e2789fddffb6f82484d301ae89b9237fe4181bd8d85949071b698eb3e98f36c95a1f0b2a767074f945868c3f4f7d7723e3fa2ac02d1d26bf26861ddf2f3e9331c56070ecfa5d792ad1a543158eef363b2489e916ff914ad84192d2e2a7d3dede0bb181962a5f973819872a6c9bf7b9d4d91155601eb49166ca396b51a891913de774362ae9402a2360e2b2d9cf5613a541ce7e6f69ace6429a0767f61133579d7a3a326e9396220a416e7e81bd0816d7430f3838ea11c18671b6de108bde0465cacb01359219ae58cc09240a4df5478b5159f198aa30cc2cd899104608dcfc958b9f8b10ee48f5bfe134c7b5ac6dd5e71b4b26b910593cf8d2e0687ba041bb5bbd1f2621a7bb54181e4bfb1280f89923032885df0646c79b0334414f2d9529b69b9055cddfceaecb4f8a2b5204ab9ae167f6a328cdc912649a15be11fc9e79f482709d9e814995e32fda5c858a9ccbc5314a031500fc42905d81420431cf476dea1ec09b364020ada89761c2ecc01f5dd5abafe8458908c8f729ac6e31e3853773a1ecad7bdc4391d0dec1dafa5aa1beadadde5a751cff06ab26909b30cfae7d2bd8e8f0f5f7b135d2b58069b64ec2758e74324339254ac0af67620c1f0f5b9f48014dca2453be3a9868c6e4c6c8f3d69c0cc8ef7accf3545e945ab32c7e0bd6a1083763dc42a8d60b1148a227bf410f74a9a569037752542151cb6c6d4ad8d67f1cd0ab2e08333f8ab37564f9e825352c8c536ab567ff4e835433bdcb231423e2ab47c2e41e658415e762b912338a8b1863f9a18980be726fbaf070ebdcebbd425cd5dd541acb4793c5105dbe577538187bf86b385b7c81c8811fa6c208d2ae3ed12803ccf921c7635e30cbbe554f2c8505f698f47f473b16364a4a5223897a7de1d52658ba824d4e8368fceba90669319e6119cba19b6917eebdf0188d8b671e1e99d9b7ef46d0abef3b1e8a660bd30714efe8823fcff2c7a498273d952dce260f0b5ca3d05e6348dad4fd04d8e334b09d626c7eb6ba897404b96e765805db4ad236b22fa5f05336116d2a0a40234ca52077a10fc28442dd72075ad57e5dbc4aa71839ff258194c2a0d2897484211ce6b855babdef8fa4f569c30142fe4def002dc2e68364bfcb58a85f81b313ae657cd344f1f3b04b3e1e252e6b960ec8152ba374e7ea7f3fa0a637709cddc1c406096816e53690139e28fb41b09e79b232573e9ca0268c739acdc3939f9e5c2cd5d6c4b02e4a939425fba5ae5d61e70ceabcdad3d666a34b97c641894ff6ec04f1712109a2ef6a1e1d620d94659b659d89d9cf3de3636085cb447473488de453bdb221339ad5fa7fa352eef36deed2d3f6f1c7b02528a2ec788a286784e85cf30379d6f750e5ab99558df54905e0890f57d69c4bdd49c1478a6735deb4c91816b388282daccf2fab9b7ac7ac9dfab9be4e258e106c99c1f756f85edcbea898f3ec307cea515f49e631fc24adf198d0246a1d3482790e7b2a280dbc4e8ac936d4e9fcc91c3cb376b91e60b25c8cffbee9506db33720339c87565066c8552bd71e3cbfd10d785f3dd361f172a4dde6b6984323d91444ee6ad09e519d5f3b99c3afdebfaba9520726dbf7ef00815ec2b37f0e811e86954daf18a90c5e5ec191eb73244eb57c5c562515bb51b6b2742be1a9464e46fe5dbdbab1b1e3726b53bc109db605d23a753edfe24d4c631b35515f92928edb250093f6c1e30283b9b1c23dfe58fce85fa5a46fde02afd473b9a771d671e44ffc500a68f9e8d8f6f235aee7f341f538b6177fe52a5f782526f741558034d12201e49b15ff578ab5e53703058cc563147693ac68b3bffa90861954d5671afc3bd98e22bdad2f0bd021b1ca7b04d40880a0002fc8059e2cc62ac5e2cf121fbc337c4ce2a3caf02fcddd66cc230b8f70e45547e3b7df65c958c09ed3899368e3d70a0d9ee0d19501c3fc186208d27efc7894d1347e0fc507159fa23ae6b3b00c81912cb7c7f2339f4e8134727018fbe2c50f7a4599ee37cf3bc9f4cf59019fc8c39d66db96c5bcf2c1538f36efe8b3af642c35eed158d9ad25230acc6f42f4f5a1726102b27aaf11e003ba927d3569563f0a6f93281bbd88b1e01a99ce28bb32cfbec649ef06a444382469a6ac634892edf2ebba29865cf66d5b8d9a4c70cc10331b197704b06ed3ec6db3db9512325604bdd7de1bb952457e23d309d6fc7e8d143a9e3698e13ee862156e7647d8e1f0f38cbf39bc123b2454d5023bdad3da71535de9c177536dd30a7bf4ddf8829b48e9df4b7b8d3f44b7dc6bd71f8b72301d8151ee08da0ed7c3a5176937c775c4e5ce286a578411cdb9afb494e88672f0b27ef1a24c5ea61c82569f69d80fd0b07a29be44a371e552e6fbdb81f35bc086af19e64316cdf03e9e9890f5cced96c070d53bfca3aff8b72f969f3a46ce330b8cc3a91b9fbe70aa770c61bdcd7c4d019f9ef47987dda969af933fc66d118cb687ddd4571eacd2281be77271060df37771af2b15eb5faa585bf6ad4f4a50f2b18e914bb0a66cdb69ce61c0189d3702759e4ba859f95a52fcd2ef21be126d27a00d7b0550cea0ffbcd5ff30e511082ff866edbadf0d149b90125b1cbddf4db9bc30ed44972733a5eb31178a84e92e1bc813286bddceecd6cc92f902bc495d2d53bd4ace7b617be4cafa9c146eddac51d6459314fd57bc9a086849bf6b3e9ee17100be5c4b2704b41d9ddb607e10ed5b7a70537f216b52fdd3e3ac1b8138ea2e8ce3f675a0e86e611520c362a7a4feea316b0461c9fbf532b9965f37637e605679987ae2dadd7545fa7a2baf0242184d2f842094dd99af8478bf16ae9ba3812d5a8331caac41791148b831c8b137860c6e7c96571af00ce3a264e5dc42cb07acbb3b0f1507acb11c9d1aae86e33f3303a115bbc63a82ff45888ef26c8d87df2cf81711acaa0c730963dcd5a9b33b47d67ddf17ea9979ea5d876db519c9b43ac461c725b303ce14b9dfc936c4c26942954baa22d8fec0ad8f9b598ca424d05afb2cfb2e42e2e17e5baab8ffaddd515b9083587b21ad961acd2a481e701d45d92adeea80314a9638fa826b7eb735b3177fd2658c7d96073a40d87173de9c58e4c8cdcece3d4198bebfd0de5ea0f97abb857676c341f12d27b319f18b9a8233162f07b2bcf369a409cdf55fadc86e2bf4243b48c0e4395eef43fea92fc09889b50900ae76c3e13c40cb06ce5e7f87aa7432a78341766e1d26ccf74493b2bb0df70cbc8863d96ee7e14b823af4daa92f61c81c90770bb9b7a4684b34bae8ccb2733e8f64bfd666f9f2a9bc94efaf3a0ad4e1cc960c8b3488b5ddb9f71c9c16c5c8fe5d5ab46f09454b13796fe02720d6a7b23511f33b9f62796c15d676860f135cf424ddf6d37f6a9b175efd1aa4415cd3d09a77a4883b3d347b2d99dabebf4a79fc9dfe5dcbf04d96d7a2297803812674d191cba45f3e5f32c90ddd873b97826cd4b0bfa924a5c9ac2671effbf7c7ca74acdbf539ac0c2d6f8b51cae01aea56a70f43c0443ea36c12f1adb605fa772e84ec759bc7ba4a263e12363e1e19070d0c6525faa40c0c3e130ce1da0aaed185e52f7a532e972e333913aeb3eae0b771d901159ef8e15edc7f3becbaa73b57baf72977c1e92cd463199be1e17158590986db60977351e92efc9fe377e3bd2be5ffa3c2b0f99d70157e6a69d3438b53bb372f64fe61b9ccae9afe96eabfcdd39cd2367bf3b2ce601629ed775f4c22f2288263ed4427fae7517f1787c35c5ac54216fd0adfa331557eb024a65069a82c2189cce7ab244f94af46985803438efa0720f6dcb5e9f745daab1d44584342b8bcebd698b67fa82e5219119244a249a5d917b87fd398a8e45258487ffe9420c821c6a0a809381c8e8b881a435177bd6c46e72a68bee2f2d5bd393c3acb262340505962d7f5cc12508321c17db4f654cc1e8cdecbb2773b13467eeb7e54b8a607b54db2fe49916f30edf20af10c54e35a73f74f77d8e0ea0f868f982d7755296e6ee9ffdb34b453d1dd310ffb8fa9e0834d2ec123217badb0d872fa4813377c46e0ee00513973dad9b0e08539c852ca36c8eddeb2a574cfd6f27a91422a9d7adacaa98ebfdecd20b64162ab286b3af55254f09ef46450e0b18cb9ca4b41ac280c3981a662c9b60a2a47286db99600a4b201025562f43659d8498dff8f749f5a53c2067e519024f33c91ee248d247f6318606e20e88cf11f0ba8bf2ee809cab25c01cd3b9576a617128069b64699a3d57c9cf160174d927359c206b6b41e0f3707e5428529c68ad23f6b95db66b2cfa84ab522ea2e7c540b71824c2e9f04f08dd639f33d9e75d61c04c06cf0db7a4c80717c6228a838f59d9ca07844d5d1273f3a01823b10bc17835622783d4e3372cc58f35b5e9ba3eeff7a10ef674e19a8b1ed90b353bcc82d88ecc3e453d552c109012c1069547fd1a10d13c38f3823a80a3c0fc9037cab87d2ac562e674cea66f434d2f4214fa90ba284cfdc438d9ac493fed82f513667b5390fad2b9d412ffed80d0cdc44565b662620a8b29140fc21545fe9306754c4ad0307724823ea4e4272f725f88172045e8509667e6583d947728b9bc35b650f86d9708abf46f2446390f473ffd71a39a7fb95c3a41007b042cff70568d90c3c9c2623a05a5eb9f7ac093f28dc1e3a12bdcfadeb89d933a9f58864358cbba0ae25825e8a94df72414e9667edf17210361dba6f5d09ecee709a15a2371c0b32e054832924babc954d8f9485212ceaf9f3aeec418f5eb2097457b21db156325367b53f829bd16d1b446e75d0796f7f05330341ce6baf62a78ef9c9be4fde0fb2e5ee018e001eb59b8d06037d335f41db5d9597583cee5cdea113d5621ed2d05504fddc80b5dfd7d3367a48e12c9a5372b115651281a874b079ab45b9fc0c2e7dca3640d6012deb5a93c6571c4dc8e20cc89484f682038a4e87c91c3da0b4b8603f2414c66b12a7d1bdcf99c77c3ab7bfb6ef38652a550b889f6c70c9761962a1d143d143bd305da60854f4d0fa5bcbce42957470b09fe9d35851ffcc45a72dae5f06fa609c1017feb30d0de9d356744792ce302b1db97ce83df3aa97352886e8b64e303bd9144f86914617b294983458c454ae452fda6edaa5849779c7a655b084c6ee58d66bc565d91da167409b84afa87227c1ceca70710cd144aec3b70df4db5008023b5b8addf40e6a4520778747a8838ba20744f387c3cc4005006e70fdf3e0ebb9d07a3c8f516d6bc8be7c6d73430377ec701c2df17ce767d89580561ba03a0128f7d47ec77282ad71ca6561ae4e6b43539a90660f039d0267e651458d949b40da25e94f75b47cfeef31c103616be2a9e4a3af9f419651ce71f6cd701f75f0ffe691c8973b87777a7da5ba70be07f7647af5", 0xf47}], 0x1, &(0x7f0000001700)}], 0x1, 0x0) process_vm_readv(r0, &(0x7f0000001400), 0x1, &(0x7f0000000000)=[{&(0x7f0000002780)=""/204, 0xd7e1e1d24b36aac5}, {&(0x7f0000002880)=""/183, 0x9}], 0x2, 0x0) 2018/05/02 09:54:02 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x9}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f00000000c0)=0x10, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:02 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:02 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:03 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:03 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:03 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) [ 527.642560] FAULT_FLAG_ALLOW_RETRY missing 30 [ 527.647299] CPU: 1 PID: 31718 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 527.654916] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 527.664263] ffff880193aaf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 527.672307] ffff8801b935be00 ffff880193aafa20 0000000000000000 ffff880193aafa48 [ 527.680343] ffffffff81cb75eb 0000000000000dca ffff88019166d108 ffff8801b935bf0c [ 527.688382] Call Trace: [ 527.690959] [] dump_stack+0xc1/0x128 [ 527.696320] [] handle_userfault.cold.18+0x3e/0x51 [ 527.702807] [] ? debug_check_no_locks_freed+0x210/0x210 [ 527.709823] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 527.716228] [] ? preempt_schedule+0x25/0x30 [ 527.722196] [] ? ___preempt_schedule+0x16/0x18 [ 527.728426] [] ? handle_mm_fault+0x1267/0x28e0 [ 527.734651] [] ? handle_mm_fault+0x220f/0x28e0 [ 527.740877] [] handle_mm_fault+0x221d/0x28e0 [ 527.746927] [] ? vm_insert_mixed+0x200/0x200 [ 527.752981] [] __do_page_fault+0x5af/0xd50 [ 527.758859] [] ? mm_fault_error+0x2c0/0x2c0 [ 527.764823] [] ? exit_robust_list+0x220/0x220 [ 527.770959] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 527.780236] [] do_page_fault+0x27/0x30 [ 527.785764] [] page_fault+0x28/0x30 [ 527.791032] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 527.797865] [] ? SyS_pselect6+0x1be/0x540 [ 527.803656] [] ? SyS_select+0x1e0/0x1e0 [ 527.809275] [] ? SyS_futex+0x206/0x310 [ 527.814804] [] ? do_futex+0x1770/0x1770 [ 527.820420] [] ? security_file_ioctl+0x8f/0xc0 [ 527.826641] [] ? do_syscall_64+0x48/0x490 [ 527.832432] [] ? SyS_select+0x1e0/0x1e0 2018/05/02 09:54:03 executing program 1: sendmmsg$unix(0xffffffffffffffff, &(0x7f00000002c0)=[{&(0x7f0000000440)=@file={0x0, './file0\x00'}, 0x6e, &(0x7f0000000040)=[{&(0x7f00000004c0)="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", 0xf47}], 0x1, &(0x7f0000000240)}], 0x1, 0x0) r0 = getpid() syz_emit_ethernet(0x1, &(0x7f0000c57000)=ANY=[@ANYBLOB="fea5"], &(0x7f0000ea3000)) pause() process_vm_readv(r0, &(0x7f0000001400), 0x1, &(0x7f0000000000)=[{&(0x7f0000002780)=""/204, 0xd7e1e1d24b36aac5}, {&(0x7f0000002880)=""/183, 0x9}], 0x2, 0x0) [ 527.838049] [] do_syscall_64+0x1a6/0x490 [ 527.843753] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:03 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000000000)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffe}, &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:03 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000440)={0x11, 0x0, r2, 0x1, 0x8, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$sock_FIOGETOWN(r1, 0x8903, &(0x7f00000002c0)=0x0) ptrace$PTRACE_SECCOMP_GET_METADATA(0x420d, r3, 0x10, &(0x7f0000000340)) ioctl$sock_netrom_SIOCGSTAMP(r0, 0x8906, &(0x7f00000003c0)) socketpair$unix(0x1, 0x5, 0x0, &(0x7f0000000180)) ioctl$SNDRV_SEQ_IOCTL_UNSUBSCRIBE_PORT(r0, 0x40505331, &(0x7f0000000240)={{0x2, 0x1f}, {0x9}, 0x1f, 0x0, 0x3ff}) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f00000000c0)=0x110, 0x12f) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:03 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f00000000c0)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:03 executing program 7: r0 = openat$ptmx(0xffffffffffffff9c, &(0x7f0000000080)='/dev/ptmx\x00', 0x0, 0x0) ioctl$TCSETS(r0, 0x40045431, &(0x7f00003b3fdc)) r1 = syz_open_pts(r0, 0x10000000002) ioctl$TCSETSF(r1, 0x5404, &(0x7f0000000040)={0x0, 0xffffffff}) writev(r1, &(0x7f00000007c0)=[{&(0x7f0000000300)}, {&(0x7f0000000680)="612d7e86e3cb628dac1633d0cc62bb3518b0dfcf0a3c5316e9632846047e4a66af1223444fcfc809890d190eb3f1f3932727cc8b01e3c05507f6b8609fdde31b9bbc7d3cc145c99103a80c951d2d8016d3a96814e69f4027d6df12c9d5b66b25dc3e29245f53ff800e3a298e", 0x6c}], 0x2) 2018/05/02 09:54:03 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x2, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$int_in(r0, 0x0, &(0x7f00000000c0)=0x7) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) ioctl$EVIOCGBITSND(r0, 0x80404532, &(0x7f0000000240)=""/87) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:03 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:03 executing program 7: sendmmsg$unix(0xffffffffffffffff, &(0x7f0000000100)=[{&(0x7f0000000440)=@file={0x0, './file0\x00'}, 0x6e, &(0x7f0000000040)=[{&(0x7f00000004c0)="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", 0xf47}], 0x1, &(0x7f0000000240)}], 0x1, 0x0) r0 = getpid() syz_emit_ethernet(0x1, &(0x7f0000c57000)=ANY=[@ANYBLOB="2127d0"], &(0x7f0000ea3000)) pause() process_vm_readv(r0, &(0x7f0000001400), 0x1, &(0x7f0000000000)=[{&(0x7f0000002780)=""/204, 0xd7e1e1d24b36aac5}, {&(0x7f0000002880)=""/183, 0x9}], 0x2, 0x0) [ 528.981137] FAULT_FLAG_ALLOW_RETRY missing 30 [ 528.985864] CPU: 0 PID: 31767 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 528.993464] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 529.002798] ffff880193aaf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 529.010796] ffff8801d7765c80 ffff880193aafa20 0000000000000000 ffff880193aafa48 [ 529.018786] ffffffff81cb75eb 0000000000000dca ffff8801c8375108 ffff8801d7765d8c [ 529.026769] Call Trace: [ 529.029335] [] dump_stack+0xc1/0x128 [ 529.034681] [] handle_userfault.cold.18+0x3e/0x51 [ 529.041145] [] ? debug_check_no_locks_freed+0x210/0x210 [ 529.048151] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 529.054544] [] ? preempt_schedule+0x25/0x30 [ 529.060486] [] ? ___preempt_schedule+0x16/0x18 [ 529.066698] [] ? handle_mm_fault+0x1267/0x28e0 [ 529.072904] [] ? handle_mm_fault+0x220f/0x28e0 [ 529.079108] [] handle_mm_fault+0x221d/0x28e0 [ 529.085141] [] ? vm_insert_mixed+0x200/0x200 [ 529.091179] [] __do_page_fault+0x5af/0xd50 [ 529.097036] [] ? mm_fault_error+0x2c0/0x2c0 [ 529.102979] [] ? exit_robust_list+0x220/0x220 [ 529.109096] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 529.115736] [] do_page_fault+0x27/0x30 [ 529.121247] [] page_fault+0x28/0x30 [ 529.126497] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 529.133309] [] ? SyS_pselect6+0x1be/0x540 [ 529.139078] [] ? SyS_select+0x1e0/0x1e0 [ 529.144684] [] ? SyS_futex+0x206/0x310 [ 529.150195] [] ? do_futex+0x1770/0x1770 [ 529.155790] [] ? security_file_ioctl+0x8f/0xc0 [ 529.161994] [] ? do_syscall_64+0x48/0x490 [ 529.167764] [] ? SyS_select+0x1e0/0x1e0 [ 529.173363] [] do_syscall_64+0x1a6/0x490 [ 529.179045] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:05 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:05 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = openat$selinux_mls(0xffffffffffffff9c, &(0x7f0000000240)='/selinux/mls\x00', 0x0, 0x0) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$TIOCSETD(r1, 0x5423, &(0x7f0000000300)=0x4) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x3, 0x0, &(0x7f00000000c0)={0xffffffffffffffff, 0xffffffffffffffff}) r5 = fcntl$getown(r4, 0x9) ioctl$TCSETSF(r0, 0x5404, &(0x7f00000002c0)={0x7429, 0x7, 0x9, 0x5, 0xffff, 0x2, 0x9, 0x4, 0x0, 0xf992, 0x1, 0xfffffffffffffffa}) sched_getparam(r5, &(0x7f0000000280)) 2018/05/02 09:54:05 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:05 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000012, 0x4000000000080002, 0x0) getsockopt$inet_sctp6_SCTP_GET_PEER_ADDRS(r1, 0x84, 0x6c, &(0x7f00000003c0)=ANY=[@ANYRES32=0x0, @ANYBLOB="24000000796cc36f11f7055baa71e2fb7e9f790c67d61c1dd0f92d3c7ea54caee546ba9826ae90daf6723c6a46b4e8f937c70473a9725fb9d65822797ea07cc6dc1db1ea0269efc023733b66d046"], &(0x7f0000000240)=0x2c) setsockopt$inet_sctp_SCTP_AUTH_DELETE_KEY(r0, 0x84, 0x19, &(0x7f0000000280)={r2, 0x8}, 0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x2000000110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) ioctl$RNDGETENTCNT(r0, 0x80045200, &(0x7f00000000c0)) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:05 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x0, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x5, 0x4000000000080002, 0x20) getsockopt$IP_VS_SO_GET_DESTS(r1, 0x0, 0x484, &(0x7f00000006c0)=""/122, &(0x7f0000000740)=0x7a) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$SG_GET_REQUEST_TABLE(r0, 0x2286, &(0x7f0000000540)) connect$pptp(r0, &(0x7f0000000240)={0x18, 0x2, {0x0, @rand_addr=0x8}}, 0x1e) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) write$binfmt_script(r1, &(0x7f00000003c0)=ANY=[@ANYBLOB="2321202e2f66696c6530202f6465762f736e617073686f74000ac10a1a21bbafb77114c4b9d8925bd606f0f2cec72669f0d9c010cfb4c58e7ec50b7aa54b1aa1f44116ae7ff2741fdcf0e71d89559ba0da196a19978705f00c8b25a04a5620d7f1114561bb3f6fe44452a093c8834f252c6eb7a2f70c0e670d7e978e0ad12e878db27d0fe8976e5cf3808e513dc2c3531a83cf543a"], 0x36) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$inet_sctp_SCTP_PR_SUPPORTED(r0, 0x84, 0x71, &(0x7f00000000c0)={0x0, 0x5}, &(0x7f0000000480)=0x8) getsockopt$inet_sctp6_SCTP_DEFAULT_SEND_PARAM(r0, 0x84, 0xa, &(0x7f00000004c0)={0x861, 0x8, 0x200, 0x7, 0xffffffffffffff80, 0x9, 0x1, 0x8, r3}, &(0x7f0000000500)=0x20) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$SNDRV_SEQ_IOCTL_REMOVE_EVENTS(r0, 0x4040534e, &(0x7f0000000280)={0x8, @time={0x77359400}, 0xffffffffffffffc1, {0x10001, 0x7}, 0x9, 0x0, 0x1}) 2018/05/02 09:54:05 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) r1 = openat$ppp(0xffffffffffffff9c, &(0x7f0000000000)='/dev/ppp\x00', 0x101000, 0x0) ioctl$SNDRV_TIMER_IOCTL_START(r1, 0x54a0) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:05 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) setsockopt$inet_tcp_TCP_FASTOPEN_KEY(r0, 0x6, 0x21, &(0x7f0000000640)="71653578c0e5c46f5b0f53527d0fa144", 0x10) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) openat$ipvs(0xffffffffffffff9c, &(0x7f0000000000)='/proc/sys/net/ipv4/vs/snat_reroute\x00', 0x2, 0x0) socketpair$unix(0x1, 0x5, 0x0, &(0x7f000000aff8)) unshare(0x400) pselect6(0x40, &(0x7f00000abfc0)={0x3ffffd}, &(0x7f0000768000), &(0x7f00007fbfc0), &(0x7f0000349000)={0x0, 0x989680}, &(0x7f0000f14000)={&(0x7f00001da000), 0x8}) getsockopt$inet_sctp_SCTP_CONTEXT(r0, 0x84, 0x11, &(0x7f0000002880)={0x0, 0x8}, &(0x7f00000028c0)=0x8) getsockopt$inet_sctp_SCTP_DELAYED_SACK(r1, 0x84, 0x10, &(0x7f0000002900)=@sack_info={r2, 0x4b79, 0x7ff}, &(0x7f0000002940)=0xc) setsockopt$inet_sctp6_SCTP_DELAYED_SACK(r0, 0x84, 0x10, &(0x7f0000000680)=@assoc_value={r2, 0x6b}, 0x8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0xffffffffffffffff, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) syz_mount_image$ceph(&(0x7f00000000c0)='ceph\x00', &(0x7f0000000240)='./file0\x00', 0x7f, 0x3, &(0x7f00000005c0)=[{&(0x7f0000000280)="71abd77abe5b76afc6404ab747acc09339bef1e51731e53ad4a0c16300fea6f536cb06edaa0af00fa7b7b6877a7b72948820588fd3e7656ebf07324778952ab079ec9f12c462f367654080f4baeb2c11e9498d35c43bde86c63e826914bf31293583388847dc03bcf7ea86418b", 0x6d, 0x2}, {&(0x7f00000003c0)="eb59aef2bd1053238d351c1d4285312c9b78fa9e77b4301cffab55b276af8a21845f1ab51c9f592025beedc605ebbd4dfc9c2e1a847c10eef4b683e5b7e69279da7bfc1f325231eaed11e48f673c96029bba9e4188d8325813c0ed7f9cf725652c48db69e1ce098636e49b43b080c5814c1d91ff7cbe7bcfa77a4c039f510b85229e7a3c9d67e249b5fe11e4ed7eb5237d3c3e3a4c0ca8eb696a60f83da4b10c38914c03fb809c33b9d44fc91319055288a558f4b8dd6803296b394d732277364a1dfc76fefa052fb29a49249b97e6e22c602f", 0xd3, 0x3ff}, {&(0x7f00000004c0)="c4cce96a0614e4608d11325859982008aaabb3a75b709af06ba61b16d5f207df9c132ad691a47c474fa2d9ff1fbd5b20d0183513a3a18ec7af355ce254cde0a016710c4efc020149710e5f964a133226b11dd48a6a4ebc655e356d3e2f72fa0abd5e499d17e00eed1a4f95c4ab60e856e952097aea24071331c3d294d6753787e0a9343b6fe37385078a043099ae4c4de3089586e9e219297b9cde93865eacf8735f7cc69f8fd76f797de49dd94dcd94a7b58583ec3f510488f8092efdcf81a01ed4ec1590df51479a2c909d6aca36616c53b7fbfed84edc45939c3e53410168f9a486a15ca4f3e6c2de89c8ac2d8b52a0037833b1b37165", 0xf8, 0x6}], 0x1000000, &(0x7f0000000340)='/dev/snapshot\x00') setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) openat$selinux_load(0xffffffffffffff9c, &(0x7f0000002980)='/selinux/load\x00', 0x2, 0x0) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) setsockopt$inet_udp_encap(r1, 0x11, 0x64, &(0x7f0000002840)=0x7, 0x4) 2018/05/02 09:54:05 executing program 7: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) r1 = accept4$bt_l2cap(r0, &(0x7f0000000000), &(0x7f0000000040)=0xe, 0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) r2 = gettid() capset(&(0x7f0000000080)={0x20071026, r2}, &(0x7f00000000c0)={0x7fff, 0x7, 0x81, 0xffffffff00000000, 0x7, 0x5}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) getsockopt$inet6_IPV6_XFRM_POLICY(0xffffffffffffff9c, 0x29, 0x23, &(0x7f0000001840)={{{@in=@multicast2, @in6=@ipv4={[], [], @rand_addr}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{}, 0x0, @in6=@mcast1}}, &(0x7f0000001940)=0xe8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000001980)={'ip6gre0\x00', r3}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:05 executing program 5: r0 = socket$netlink(0x10, 0x3, 0x0) sendmsg$nl_route(r0, &(0x7f0000000300)={&(0x7f0000000040)={0x10}, 0xc, &(0x7f0000000000)={&(0x7f0000000340)=@newlink={0x24, 0x10, 0x1, 0x0, 0x0, {}, [@IFLA_IFALIASn={0x4, 0x14}]}, 0x24}, 0x1}, 0x0) r1 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000480)='/dev/snapshot\x00', 0x40002, 0x0) epoll_pwait(r1, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$sock_cred(r1, 0x1, 0x11, &(0x7f0000000240)={0x0, 0x0}, &(0x7f0000000280)=0xc) quotactl(0x28066b9f, &(0x7f00000000c0)='./file0\x00', r3, &(0x7f00000003c0)="10d4a6121b26db7b43632008fa121110e20b32a0e75eaa6b31527afb67050e4ba74af6089731462272cc3a5ff765a36b2c9c55a3669ed60ee38154cb5b8c756bcabf2ec3e7a9c16efa0ee9cee9358f7e486fc752e8ca75a3a0712a7c52f9fb03b5be09132226224faac9356996d277dd3b2d830e9f128de46de2bb9275443bcb456aa08f8d9e3ac274d50f1259067ac3105843bf52b781eb1e5e0dc4b5cc9d99dde140f35d0bea078143dcc2") perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:05 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f00000000c0)={0x1b, 0x2, 0x1}) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f00000000c0), 0xd, &(0x7f0000dda000)}], 0x1, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:05 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) socketpair$inet_smc(0x2b, 0x1, 0x0, &(0x7f00000000c0)) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) mkdirat(r0, &(0x7f0000000240)='./file0\x00', 0x30) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 530.141290] FAULT_FLAG_ALLOW_RETRY missing 30 [ 530.146091] CPU: 0 PID: 31806 Comm: syz-executor7 Not tainted 4.9.97-g1321d42 #13 [ 530.153712] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 530.163064] ffff880188db7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 530.171114] ffff8801d7765980 ffff880188db7a20 0000000000000000 ffff880188db7a48 [ 530.179167] ffffffff81cb75eb 0000000000000dca ffff8801cd773908 ffff8801d7765a8c [ 530.187203] Call Trace: [ 530.189778] [] dump_stack+0xc1/0x128 [ 530.195137] [] handle_userfault.cold.18+0x3e/0x51 [ 530.201622] [] ? debug_check_no_locks_freed+0x210/0x210 [ 530.208628] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 530.215022] [] ? preempt_schedule+0x25/0x30 [ 530.220988] [] ? ___preempt_schedule+0x16/0x18 [ 530.227282] [] ? handle_mm_fault+0x1267/0x28e0 [ 530.233503] [] ? handle_mm_fault+0x220f/0x28e0 [ 530.239728] [] handle_mm_fault+0x221d/0x28e0 [ 530.245776] [] ? vm_insert_mixed+0x200/0x200 [ 530.251831] [] __do_page_fault+0x5af/0xd50 [ 530.257706] [] ? mm_fault_error+0x2c0/0x2c0 [ 530.263669] [] ? exit_robust_list+0x220/0x220 [ 530.269806] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 530.276469] [] do_page_fault+0x27/0x30 [ 530.281997] [] page_fault+0x28/0x30 [ 530.287271] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 530.294105] [] ? SyS_pselect6+0x1be/0x540 [ 530.299899] [] ? SyS_select+0x1e0/0x1e0 [ 530.305517] [] ? SyS_futex+0x206/0x310 [ 530.311049] [] ? do_futex+0x1770/0x1770 [ 530.316669] [] ? check_preemption_disabled+0x3b/0x170 [ 530.323499] [] ? __task_pid_nr_ns+0x20e/0x450 [ 530.329635] [] ? do_syscall_64+0x48/0x490 [ 530.335423] [] ? SyS_select+0x1e0/0x1e0 2018/05/02 09:54:06 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = dup3(r0, r0, 0x0) epoll_pwait(r1, &(0x7f0000000000)=[{}], 0x208, 0x7f, &(0x7f0000000040)={0x2}, 0x8) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:06 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180), 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 530.341035] [] do_syscall_64+0x1a6/0x490 [ 530.346735] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:06 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) [ 531.185701] FAULT_FLAG_ALLOW_RETRY missing 30 [ 531.190355] CPU: 1 PID: 31841 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 531.197962] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 531.207308] ffff8801c151f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 531.215352] ffff8801b935a900 ffff8801c151fa20 0000000000000000 ffff8801c151fa48 [ 531.223380] ffffffff81cb75eb 0000000000000dca ffff8801b9650908 ffff8801b935aa0c [ 531.231416] Call Trace: [ 531.233993] [] dump_stack+0xc1/0x128 [ 531.239346] [] handle_userfault.cold.18+0x3e/0x51 [ 531.245830] [] ? debug_check_no_locks_freed+0x210/0x210 [ 531.252836] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 531.259238] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 531.266416] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 531.273247] [] ? handle_mm_fault+0x1267/0x28e0 [ 531.279467] [] ? handle_mm_fault+0x220f/0x28e0 [ 531.285693] [] handle_mm_fault+0x221d/0x28e0 [ 531.291748] [] ? vm_insert_mixed+0x200/0x200 [ 531.297806] [] __do_page_fault+0x5af/0xd50 [ 531.303689] [] ? mm_fault_error+0x2c0/0x2c0 [ 531.309651] [] ? exit_robust_list+0x220/0x220 [ 531.315881] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 531.322537] [] do_page_fault+0x27/0x30 [ 531.328062] [] page_fault+0x28/0x30 [ 531.333365] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 531.340313] [] ? SyS_pselect6+0x1be/0x540 [ 531.346104] [] ? SyS_select+0x1e0/0x1e0 [ 531.351732] [] ? SyS_futex+0x206/0x310 [ 531.357275] [] ? do_futex+0x1770/0x1770 [ 531.362894] [] ? security_file_ioctl+0x8f/0xc0 [ 531.369114] [] ? do_syscall_64+0x48/0x490 [ 531.374885] [] ? SyS_select+0x1e0/0x1e0 [ 531.380480] [] do_syscall_64+0x1a6/0x490 [ 531.386180] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:07 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r2 = socket$nl_route(0x10, 0x3, 0x0) sendmsg$nl_route(r2, &(0x7f00000000c0)={&(0x7f0000000000)={0x10}, 0xc, &(0x7f0000000140)={&(0x7f0000000040)=@ipv4_newroute={0x30, 0x18, 0x1, 0x0, 0x0, {0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0xff}, [@RTA_MULTIPATH={0xc, 0x9, {0x8}}, @RTA_FLOW={0x8, 0x4, 0x1}]}, 0x30}, 0x1}, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r0, &(0x7f00000000c0)={0x10000002}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$inet_IP_IPSEC_POLICY(r0, 0x0, 0x10, &(0x7f0000000580)={{{@in, @in, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in=@remote}}}, &(0x7f0000000680)=0xe8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000540)={'syzkaller0\x00', r3}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$sock_ifreq(r0, 0x8925, &(0x7f0000000440)={'veth1\x00', @ifru_addrs=@nl=@kern={0x10, 0x0, 0x0, 0x4000}}) fcntl$setlease(r2, 0x400, 0x3) getsockopt$inet_sctp6_SCTP_PR_SUPPORTED(r1, 0x84, 0x71, &(0x7f00000002c0)={0x0}, &(0x7f0000000340)=0x8) ioctl$SNDRV_SEQ_IOCTL_SET_QUEUE_CLIENT(r0, 0x404c534a, &(0x7f00000004c0)={0x1f, 0x7f, 0x200}) getsockopt$inet_sctp6_SCTP_PR_SUPPORTED(r0, 0x84, 0x71, &(0x7f00000006c0)={r5, 0x100000000}, &(0x7f0000000700)=0x8) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f0000000400)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f00000003c0)=[@sndinfo={0x20, 0x84, 0x2, {0x2, 0x8008, 0x1, 0x1, r5}}], 0x20}], 0x1, 0x0) lstat(&(0x7f00000000c0)='.\x00', &(0x7f0000000240)) ioctl$DRM_IOCTL_WAIT_VBLANK(r0, 0xc018643a, &(0x7f0000000480)={0x0, 0x9, 0x2c}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = openat$selinux_checkreqprot(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/checkreqprot\x00', 0x26001, 0x0) setsockopt$netrom_NETROM_IDLE(r1, 0x103, 0x7, &(0x7f0000000080)=0x9d, 0x4) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) dup(r0) rt_sigprocmask(0x2, &(0x7f0000000000)={0x1}, 0x0, 0x8) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) tee(r0, r0, 0x10001, 0x8) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:07 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x1, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$VT_GETSTATE(r0, 0x5603, &(0x7f0000000280)={0xfffffffffffffffe, 0x2, 0xffffffffffffffff}) connect$inet6(r1, &(0x7f00000000c0)={0xa, 0x4e24, 0x2, @mcast2={0xff, 0x2, [], 0x1}, 0x9}, 0x1c) ioctl$sock_inet6_tcp_SIOCATMARK(r1, 0x8905, &(0x7f0000000240)) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000400)) 2018/05/02 09:54:07 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0xd7}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) fcntl$getownex(r2, 0x10, &(0x7f00000000c0)={0x0, 0x0}) fcntl$lock(r2, 0x7, &(0x7f0000000240)={0x2, 0x4, 0xffff, 0xfffffffeffffffff, r4}) 2018/05/02 09:54:07 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$inet_sctp_SCTP_GET_ASSOC_ID_LIST(r0, 0x84, 0x1d, &(0x7f0000000340)={0x4, [0x0, 0x0, 0x0, 0x0]}, &(0x7f0000000240)=0x1bed2fda) signalfd4(r0, &(0x7f0000000280)={0x81}, 0x8, 0x80000) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) mount(&(0x7f00000000c0)='./file0\x00', &(0x7f00000002c0)='./file0\x00', &(0x7f00000003c0)='jffs2\x00', 0x2000, &(0x7f0000000400)="46e0a32833277e256889a3") 2018/05/02 09:54:07 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00'}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:07 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 532.349432] FAULT_FLAG_ALLOW_RETRY missing 30 [ 532.354082] CPU: 0 PID: 31871 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 532.361690] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 532.371041] ffff88019320f850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 532.379089] ffff8801d7764900 ffff88019320fa20 0000000000000000 ffff88019320fa48 [ 532.387141] ffffffff81cb75eb 0000000000000dca ffff8801b924e908 ffff8801d7764a0c [ 532.395175] Call Trace: [ 532.397751] [] dump_stack+0xc1/0x128 [ 532.403111] [] handle_userfault.cold.18+0x3e/0x51 [ 532.409612] [] ? debug_check_no_locks_freed+0x210/0x210 [ 532.416622] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 532.423030] [] ? preempt_schedule+0x25/0x30 [ 532.428999] [] ? ___preempt_schedule+0x16/0x18 [ 532.435231] [] ? handle_mm_fault+0x1267/0x28e0 [ 532.441454] [] ? handle_mm_fault+0x220f/0x28e0 [ 532.447677] [] handle_mm_fault+0x221d/0x28e0 [ 532.453727] [] ? vm_insert_mixed+0x200/0x200 [ 532.459783] [] __do_page_fault+0x5af/0xd50 [ 532.465661] [] ? mm_fault_error+0x2c0/0x2c0 [ 532.471625] [] ? exit_robust_list+0x220/0x220 [ 532.477764] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 532.484425] [] do_page_fault+0x27/0x30 [ 532.489952] [] page_fault+0x28/0x30 [ 532.495227] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 532.502057] [] ? SyS_pselect6+0x1be/0x540 [ 532.507844] [] ? SyS_select+0x1e0/0x1e0 [ 532.513459] [] ? SyS_futex+0x206/0x310 [ 532.518988] [] ? do_futex+0x1770/0x1770 [ 532.524601] [] ? do_syscall_64+0x48/0x490 [ 532.530387] [] ? SyS_select+0x1e0/0x1e0 [ 532.536000] [] do_syscall_64+0x1a6/0x490 [ 532.541705] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:08 executing program 7: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:08 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}], 0x4, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:08 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:09 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) setsockopt$inet_sctp6_SCTP_PARTIAL_DELIVERY_POINT(r0, 0x84, 0x13, &(0x7f00000000c0)=0xffff, 0x4) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:09 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = openat$selinux_checkreqprot(0xffffffffffffff9c, &(0x7f0000000000)='/selinux/checkreqprot\x00', 0x0, 0x0) write$tun(r1, &(0x7f0000000440)={@pi={0x0, 0xf6}, @hdr={0x1, 0x81, 0xffffffffffffff4c, 0xc4, 0x0, 0x100000002000}, @llc={@llc={0x2, 0xf8, "ee7a", "651ad356234f632cae7f5f3d85aeaf11e00192c66c38603f3dd846b84905445e2d5eb4f857ac4a8a8e22d59e0460121ef75a9e6d41d10053b11d1eb5b185ecf818fd4be7f300c3dd67ee2d013f84dde7b0a8b0e2a2ea604de840d68c93e2de89d4fc5621a5234bb28aec89edfac446159e1a5ee1628dd2b69c27af87c2f2c7c75ff0562a70fb5be93a88f2a67b8af4c39fb09ea2fb0a665272b72ee9ea8ca7cd60d31f4829bdf7756db17b864924e8710696762339c51a717402203f5e4ebf608683e4acebe40f60bf29add03ea92dcf2811d2354279ddf90d946e1a295cc17a2bd0698a6bbe6e187003c9abf0b048f67e9bbf9540a73b2b"}}}, 0x10a) stat(&(0x7f0000000040)='./file0\x00', &(0x7f0000000080)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$TUNSETGROUP(r1, 0x400454ce, r2) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:09 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:09 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0xf, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$TIOCGPGRP(r0, 0x540f, &(0x7f00000000c0)=0x0) sched_getattr(r3, &(0x7f0000000240), 0x30, 0x0) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:09 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x40d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffffffffffffffff, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x400000000000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x2) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) ioctl$BLKRAGET(r0, 0x1263, &(0x7f0000000340)) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) setsockopt$netrom_NETROM_IDLE(r0, 0x103, 0x7, &(0x7f0000000240)=0x6, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:09 executing program 7: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) r1 = openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000000)='/dev/pktcdvd/control\x00', 0x44400, 0x0) r2 = syz_genetlink_get_family_id$fou(&(0x7f0000000080)='fou\x00') sendmsg$FOU_CMD_GET(r1, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r2, 0x100, 0x70bd2c, 0x25dfdbfb, {0x3}, [@FOU_ATTR_PORT={0x8, 0x1, 0x4e21}, @FOU_ATTR_IPPROTO={0x8, 0x3, 0x5c}, @FOU_ATTR_IPPROTO={0x8, 0x3, 0x3a}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040001}, 0x810) 2018/05/02 09:54:09 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:09 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$inet_sctp_SCTP_ASSOCINFO(r0, 0x84, 0x1, &(0x7f00000000c0)={0x0, 0x6d24f07, 0x1, 0xffffffffffffffaf, 0x7, 0x1}, &(0x7f0000000240)=0x14) setsockopt$inet_sctp_SCTP_PRIMARY_ADDR(r1, 0x84, 0x6, &(0x7f00000003c0)={r2, @in={{0x2, 0x4e22, @multicast2=0xe0000002}}}, 0x84) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:09 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000340)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = fcntl$getown(r1, 0x9) ioctl$sock_SIOCGPGRP(r1, 0x8904, &(0x7f0000000480)=0x0) r5 = gettid() getsockopt$inet_IP_IPSEC_POLICY(r1, 0x0, 0x10, &(0x7f0000002e40)={{{@in=@multicast2, @in6=@ipv4={[], [], @loopback}, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@remote}}}, &(0x7f0000002f40)=0xe8) lstat(&(0x7f0000002f80)='./file0\x00', &(0x7f0000002fc0)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) r8 = getpgrp(0xffffffffffffffff) getsockopt$inet_IP_IPSEC_POLICY(r0, 0x0, 0x10, &(0x7f0000003040)={{{@in6=@remote, @in=@dev, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in=@multicast2}, 0x0, @in=@multicast2}}, &(0x7f0000003140)=0xe8) fstat(r1, &(0x7f0000003180)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$sock_SIOCGPGRP(r0, 0x8904, &(0x7f0000003200)=0x0) fstat(r1, &(0x7f0000003240)={0x0, 0x0, 0x0, 0x0, 0x0}) tgkill(r4, r5, 0x34) getresgid(&(0x7f00000032c0), &(0x7f0000003300)=0x0, &(0x7f0000003340)) sendmsg$netlink(r0, &(0x7f00000034c0)={&(0x7f0000000380)=@kern={0x10, 0x0, 0x0, 0x1000}, 0xc, &(0x7f0000002e00)=[{&(0x7f00000003c0)={0xa4, 0x3b, 0x222, 0x70bd2c, 0x25dfdbfe, "", [@generic="9a1e413b372840f6fc0681ed1f77288b8d82b53483fa107371bf7dc9cf7aa6010649a7310c2a3a56b2b1b1d87f74618437805e7aefa141530fc34c39d81efe02d5fcc09e265e457e977b7992d0f6e8d59ff9d44bfda7886947ef38c019701eaa6ad542fd5ee6219bcda49d179f0642ce907e139f44e20fc5cf1740c0fc0bf459f3976d7df75aa5208de8ea3690964a91a465"]}, 0xa4}, {&(0x7f00000004c0)={0x26cc, 0x11, 0x10, 0x70bd2c, 0x25dfdbfd, "", [@typed={0x8, 0x76, @str='\x00'}, @nested={0x120c, 0x63, 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@generic="ebded0ae7d60c2475eee7a0101bf2e91500e4161fb9f81f3ca3b9a0cecd33e3684c30ab067101e4e1a2f8863b36f0b29f84743b70ee8791057ab46c0c98c3c632166a5caf50378e81302afa2a6c56590931ba4b3a2ae5f19d8ddae5bb3700672e2d3e6cbbb6f7719124f1f10cc0fe44763981ed166a3970ca026135f1345b7b3e60f2bc8600251843aea32c74ed7fefdc777cf7c4be1b470c1abd85237e80af4a58aa4f1cc8ca9ff673e198f673b768d1dfceaf45126a7a6fb317c38175c19f9262746148c8f6d915293bdfb822081c78728a8d8e9c183097482aaace54e24149f249eca1c2c982f40a8719757d3e85d73842af6f7fd20373f948903020984aed64d8cc8e0403037b46086b6c323d69289034277cb53152eb39aa261ee0a084ce01aeeaf85804c29f0b1e70a4c85be3080a585e169dd5ddec77ba94a59a9e867a02f36b12d242220013a3ee41043ef78864b90496d1fc88655ca33421dfe776c951f15286a800bc3938eae4fdcadf481641057b34c71d02926a48b11ebce2cc245d01c76d4683f20d515ce2b4a5956973aaaad726763eeb42f74e8b3519e1fdfce2f4e1824d21ca176d0c48ede109a0fc06496ee6131963ebd3bd3c4515d8bb3acdee248494cdc5e7e6ca1adc5f561c08d727879c0206d45eb6d06553f2f0f41f098182bec8bf89f9ee3f2276fd7687e5e73097df31bd23e5c57fbec9957095e36bf35f1f5b369d043be20cf59dfad512cd7f85d23e7c71664aa826a4f82d5c2cfcb654ce4faf4160feef5dd1db8d01bf3b39d1459c1322cda07288e152625f1bbdcb758dd95fbbe9f25eb5f3bf715940804d4001c4750d182b4fd96566df0db5657fa0ea92f672674d0cb35024c90c77bd68110c8eb74d6ff2e9b9b221ae379456ec0bfc46abfea59ae083f80f7f8250a88872b5e4e7896cc1cd597b787bc77fee074a375df4b01b7df168f79b72eb2fb73e2f0c783ebf47e252b77ffe5827ce2a630515ed94aa98edd4c9fd336a5ee4ccbb048ece0597d8492cbb4f27ca848cfb83ad87c12a5a7301d34552c3e2cd6b9c014630ca1fbba4a773629107acb0e080365d6099c1a397d75e6622810e5265a20b486189d5a6501bff6372c72d9d37972ec85ec91791aaa22a5058bd0495dea78a44e0d68036999b99bdb2c41cd7040917dba41f2f073d54c9f7f61fd849875e6d2ae55fecd3b532829ee68bfa6ece295cdb4414c7e0432096bc0ba2c007ade99cec562bf5d1ac11731ba3f0a9970e16985069014156487e638e721e04b641fcb502a9c2149876503f862e9695e98544139b54f816f7ad10a00e6dba7ff42c38f29e1c33e65a1ccea21348df023c3d2109b4c71d3467f832d740724f467e68c395a7cc32e03704d1aee376e00f9eabe684285b12b002e9253bd160d4914e3f37d2aa13c6ac7d41c18d086f34c1dfb0607d839352942728b0e051439aa898c739ff1c6079fdbd875503938c0b3c392053c69fdd3f4fbd9d1a36cbb2d8d326646f2ecada559d66487b077e5349a123af602a390d90607a24c8be10ab394bf2ce34a0f71d514304dcad13938d76b5bbb58aad7c862bfce10f974f882cd1511d3c4dbf2f19c0863e3aeb473ba428fefcf4543e5b3c057d66c09b7f54e7210268c237f7edfc8c341ef6cb0754d0e46d10740d6232ec098e0e9ad5162345afefe669d284155fda053f12ecea05653cb82569abd9ed3112a65da71981f23801eb79f9953206438e5a946ad1ec99722086dac554df91fe783185c1f56596f2f662504734694a0d32ac2cc4a68ea759dcac012c36820a081886c7eb333a74a3d22fe186ee8f8a0bc211ec197b68605f9bc276c33a3f04fa0524969b5c1f00d6f65a20f5db58555dd2c72806b9c575f38d5d6021e80ca68bf4b010781bb06a4246171ccfa0a66b032d5c1511982b5f1847fa3c82f4820180ef04dadc2b1346248bd91b5dc0c31ef66bc24d0d0f0ac24f4a6e98a46b060de8215220d0654baff8b8cecd948e992f21bc3c07026a49221904080661da139bfd1b936173b0c30d74b92df47ed1385792c8dd33312d63fcbf300ebe0fb6add82a27ca485fa9a8f5a83534561ef698301926e4526f1a2525f2e198e99081f5ab0784d4a312ce605ea776e6c8c77a6789541300a7e6017b943d98dfe7945acfbe32243a494d74b4ec61d9c0c84a2ed49e3dee7293868d467353a61e5d1280a35697302a1a1ef0cbeabf960a3b3a58e20b47da3c29783a4f95e0d695060789f3a3781de5b05d328b365a84cb9c97f492206d2861f1d1f5241faf1415c77d3d3439cd975474c601f97ef9c0e0b1668210f27b8e9c8c2fefceaf5160c5097f2450a04e46195f6733dabd9b2270d307c325d0638597aaabe7d3aee9a9dc7e2dceb7a6cf923660dfc07af46b5506c64b12d120fd3020601e975440842a74e37f1c5dce738fb9dcda70a580ce104d4afbcee5b798b065f533a6e55d2e972238ba5d51c435869db4edde6f1c56f54a6b11887fe2274ba3cb7e1a23413304975ac639bd4382e2119b7cfc24b1342d7f49ba18602f9847535d36377a2a2919ff3a74240c05b0d43c19ad088f8e853f2007f25486e6e4f1d484fbfb9a3e1b3660df8019fad07379600e1eddd1428c5336dc3a70c400e6143aba66dbe9e502f695f7c329feaa48e3e05d251c79c7f1cf059cb60cc7400bdf737df03e72491abc37a3eb95970af7901527e84ef095a5bb81bad4d789be73157e10093cb9de4af89292cb0479a1d513a60fc65c4225e4f0b69c2ed429bad41ba747f8fb1f933c558199cadd14521ff21afc9b31dd78dc6d45d2a4422b542a35dcc6ebd542f4cb3cb8f1a5f1ccddd8fae1366a8f46ee05ed64c6b7537c7380719d901f370078205f0bbc4525246d0dbaad178c3127980a6109163bfe81401c501542b8e0e8e3f142db8f0057f09a57528fa306ef2d225f6d701e210c54153c9526ab23d23e72702e18b089e7ff9e7bb9a4e7535c5a31b4f1ff3859e7935ee37411560f9a620edb6c3adb270a3f0635106d882f1bb84bbed3cee016a7c83c88bb8776da7b8fcd7e002c182d59636e8025f9926ecc1921df14e771fcdda0dee523c99d6237e4e17c3ab19944d88af1cc68c5cb529463145306853a875d34e6ca47058804ea7bf13a0ac833d9631de74228906d49e26a09541d16f81bdbcf8fe0ac8e4aec59e12ed99166b4f704f2799a338533fab692de273c1fb0c4cbd2305370958d1e4e2e2087d26b92857efa3c15b6d26d509a2b6bdd271546cf165611ad2e2acbaed081abb27f44783289ccf4dfc63cefc36e61b6f44e8dc74de61f894abd57c349ec3c4bc981963a6b82c099abca5a147992fe8577ca893a38f9da26da1f85130176ad8d465c5cc562173b1631050f9e42345ba62c4aa5f4f39739c74d886da3bfa935e165be0e330412ad7910c4d5347f5a0a150c9e081e6cb430485054bae59df90a24584ff4778bf7ae14485521e86b337a6134b316ec0a08e9711607232c973c89660af8fe5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0x26cc}, {&(0x7f0000002bc0)={0xd4, 0x3d, 0xb02, 0x70bd28, 0x25dfdbfc, "", [@generic="bba00bb135c52f0adbd9859937a885bf3d60d7e33328d3d4112deb935ae4b2b3cdd15af070b40d688652f1e29fd4146a53295d030b75c7333b2157bb348ab08a568b428a459730b9e977ac72961cf62b1d4b416b1fecd81ec08ffa40b05c5172b7f9dd9cfb601760185cc1d2463754e74db0c9e219dc3a1824b3a56a360bea1560bd602cd0fc46a9ff2fd1171ed7eded8a0f298c02f462f1b1ff6d45c07bb04835426cb6db142b52b8d6374091c1cffb90d586f63a2d792fe1544ba41d3494226406"]}, 0xd4}, {&(0x7f0000002cc0)={0x140, 0x37, 0x400, 0x70bd2a, 0x25dfdbff, "", [@nested={0x84, 0x47, [@typed={0x14, 0x68, @ipv6}, @generic="f0c40b7873fc71e46f881b03c5d08ff99f9b1efb0bc84fd53a6429759d8d92c8061a66", @typed={0x8, 0x5d, @ipv4=@multicast2=0xe0000002}, @generic="5606d788c2719fa68b434c95cc16d31983cf4bf77695d9050ede76b40a13b223f87e2d14e3088027059a12ae5af4f19ff0c20b319d597340cd5231a10b1797fa39"]}, @typed={0x14, 0x61, @ipv6=@loopback={0x0, 0x1}}, @generic="5e7112744686ae3a573d5619a01d46ba9f007b9b1388a328af1a7e45e19743dd635e2bad1e70a8355e1af3d231d4b89417c983404343ceb684bff32e52fe3ff833c4c9dd1656aa2ce2f7e71b9ff958f119b644f13c359d0b864eff0aef8b5dc40521481b1cd12e3b0ab5c79c252cebb7e877d1256c0bbe", @nested={0x20, 0x8, [@typed={0x14, 0x45, @ipv6=@dev={0xfe, 0x80, [], 0x16}}, @generic="96e1023fcbdf37"]}]}, 0x140}], 0x4, &(0x7f0000003500)=ANY=[@ANYBLOB="28000000000000000100000001000000", @ANYRES32=r2, @ANYRES32=r0, @ANYRES32=r0, @ANYRES32=r0, @ANYRES32=r2, @ANYBLOB="0000000020000000000000000100000001000000", @ANYRES32=r2, @ANYRES32=r1, @ANYRES32=r1, @ANYBLOB="0000000020000000000000000100000002000000", @ANYRES32=r5, @ANYRES32=r6, @ANYRES32=r7, @ANYBLOB="0000000020000000000000000100000002000000dbcce574131a76c61103d319cffc6fc07645096f14299855ab26ce1571d128c54e046c9907ef45ce9dd1e2340f11e4931784545385101f74472ff9096139a4c40a3914ed99779c108c367eb3dc0f3b60aa1ba014139ac783244139e1621d0fa5401929710a08", @ANYRES32=r8, @ANYRES32=r9, @ANYRES32=r10, @ANYBLOB="000000002800000000f6f21061c5000000010000", @ANYRES32=r0, @ANYRES32=r1, @ANYRES32=r1, @ANYRES32=r1, @ANYRES32=r1, @ANYBLOB="0000000038000000000000000100000001000000", @ANYRES32=r0, @ANYRES32=r2, @ANYRES32=r1, @ANYRES32=r2, @ANYRES32=r0, @ANYRES32=r0, @ANYRES32=r0, @ANYRES32=r0, @ANYRES32=r1, @ANYBLOB="0000000020000000000000000100000002000000", @ANYRES32=r11, @ANYRES32=r12, @ANYRES32=r13, @ANYBLOB='\x00\x00\x00\x00'], 0x108, 0x800}, 0x4000) mmap(&(0x7f0000000000/0xa73000)=nil, 0xa73000, 0x2, 0x32, 0xffffffffffffffff, 0x0) r14 = getpgrp(0x0) r15 = gettid() setsockopt$packet_tx_ring(r1, 0x107, 0xd, &(0x7f0000000240)=@req3={0x0, 0x7, 0x1, 0xfffffffffffffff9, 0x6, 0x5, 0x5}, 0x1c) rt_sigprocmask(0x0, &(0x7f00000000c0)={0xfffffffffffffffe}, 0x0, 0x8) getsockopt$sock_int(r0, 0x1, 0x1d, &(0x7f0000000280), &(0x7f00000002c0)=0x4) rt_tgsigqueueinfo(r14, r15, 0x33, &(0x7f0000000180)={0x0, 0x0, 0x30003}) rt_sigtimedwait(&(0x7f0000a70000)={0x7fffffffffffff66}, &(0x7f0000a72ff0), &(0x7f0000a72000)={0x77359400}, 0x8) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f00000000c0)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r16, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 534.604139] FAULT_FLAG_ALLOW_RETRY missing 30 [ 534.608916] CPU: 1 PID: 31934 Comm: syz-executor7 Not tainted 4.9.97-g1321d42 #13 [ 534.615791] FAULT_FLAG_ALLOW_RETRY missing 30 [ 534.621007] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 534.630353] ffff8801cf5df850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 534.638397] ffff8801b935ad80 ffff8801cf5dfa20 0000000000000000 ffff8801cf5dfa48 [ 534.646428] ffffffff81cb75eb 0000000000000dca ffff8801c5d53908 ffff8801b935ae8c [ 534.654460] Call Trace: [ 534.657037] [] dump_stack+0xc1/0x128 [ 534.662389] [] handle_userfault.cold.18+0x3e/0x51 [ 534.668869] [] ? debug_check_no_locks_freed+0x210/0x210 [ 534.675870] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 534.682272] [] ? preempt_schedule+0x25/0x30 [ 534.688242] [] ? ___preempt_schedule+0x16/0x18 [ 534.694467] [] ? handle_mm_fault+0x1267/0x28e0 [ 534.700700] [] ? handle_mm_fault+0x220f/0x28e0 [ 534.706930] [] handle_mm_fault+0x221d/0x28e0 [ 534.712982] [] ? vm_insert_mixed+0x200/0x200 [ 534.719028] [] __do_page_fault+0x5af/0xd50 [ 534.724914] [] ? mm_fault_error+0x2c0/0x2c0 [ 534.730879] [] ? exit_robust_list+0x220/0x220 [ 534.737011] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 534.743668] [] do_page_fault+0x27/0x30 [ 534.749188] [] page_fault+0x28/0x30 [ 534.754450] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 534.761268] [] ? SyS_pselect6+0x1be/0x540 [ 534.767045] [] ? SyS_select+0x1e0/0x1e0 [ 534.772654] [] ? SyS_futex+0x206/0x310 [ 534.778175] [] ? do_futex+0x1770/0x1770 [ 534.783785] [] ? security_file_ioctl+0x8f/0xc0 [ 534.790003] [] ? do_syscall_64+0x48/0x490 [ 534.795780] [] ? SyS_select+0x1e0/0x1e0 [ 534.801384] [] do_syscall_64+0x1a6/0x490 [ 534.807087] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 534.814001] CPU: 0 PID: 31938 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 534.821620] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 534.830965] ffff8801b8927850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 534.838998] ffff8801d7764480 ffff8801b8927a20 0000000000000000 ffff8801b8927a48 [ 534.847030] ffffffff81cb75eb 0000000000000dca ffff8801c6c58908 ffff8801d776458c [ 534.855057] Call Trace: [ 534.857632] [] dump_stack+0xc1/0x128 [ 534.862983] [] handle_userfault.cold.18+0x3e/0x51 [ 534.869467] [] ? debug_check_no_locks_freed+0x210/0x210 [ 534.876473] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 534.882870] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 534.890137] [] ? __vma_link_rb+0x226/0x320 [ 534.896024] [] ? handle_mm_fault+0x1267/0x28e0 [ 534.902255] [] ? handle_mm_fault+0x220f/0x28e0 [ 534.908476] [] handle_mm_fault+0x221d/0x28e0 [ 534.914509] [] ? vm_insert_mixed+0x200/0x200 [ 534.920542] [] __do_page_fault+0x5af/0xd50 [ 534.926413] [] ? mm_fault_error+0x2c0/0x2c0 [ 534.932374] [] ? exit_robust_list+0x220/0x220 [ 534.938493] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 534.945130] [] do_page_fault+0x27/0x30 [ 534.950641] [] page_fault+0x28/0x30 [ 534.955890] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 534.962712] [] ? SyS_pselect6+0x1be/0x540 [ 534.968481] [] ? SyS_select+0x1e0/0x1e0 [ 534.974079] [] ? SyS_futex+0x206/0x310 [ 534.979588] [] ? do_futex+0x1770/0x1770 [ 534.985183] [] ? security_file_ioctl+0x8f/0xc0 [ 534.991393] [] ? do_syscall_64+0x48/0x490 [ 534.997162] [] ? SyS_select+0x1e0/0x1e0 [ 535.002758] [] do_syscall_64+0x1a6/0x490 [ 535.008442] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:10 executing program 5: r0 = socket$inet6_udp(0xa, 0x2, 0x0) getsockopt$IP_VS_SO_GET_VERSION(r0, 0x0, 0x480, &(0x7f00000000c0), &(0x7f0000000240)=0x40) r1 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r1, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:10 executing program 7: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) r1 = openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000000)='/dev/pktcdvd/control\x00', 0x44400, 0x0) r2 = syz_genetlink_get_family_id$fou(&(0x7f0000000080)='fou\x00') sendmsg$FOU_CMD_GET(r1, &(0x7f0000000140)={&(0x7f0000000040)={0x10, 0x0, 0x0, 0x80000000}, 0xc, &(0x7f0000000100)={&(0x7f00000000c0)={0x2c, r2, 0x100, 0x70bd2c, 0x25dfdbfb, {0x3}, [@FOU_ATTR_PORT={0x8, 0x1, 0x4e21}, @FOU_ATTR_IPPROTO={0x8, 0x3, 0x5c}, @FOU_ATTR_IPPROTO={0x8, 0x3, 0x3a}]}, 0x2c}, 0x1, 0x0, 0x0, 0x20040001}, 0x810) 2018/05/02 09:54:10 executing program 4: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x0, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:10 executing program 0: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x3c3, 0x1, &(0x7f00000000c0)={0x8}, 0x8) r1 = socket(0xf, 0x3, 0x4) ioctl$sock_inet_SIOCGIFDSTADDR(r1, 0x8917, &(0x7f00000002c0)={'syzkaller1\x00', {0x2, 0x4e23, @local={0xac, 0x14, 0x14, 0xaa}}}) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$SNDRV_SEQ_IOCTL_GET_QUEUE_TIMER(r0, 0xc0605345, &(0x7f00000003c0)={0x54c, 0x2, {0x0, 0x3, 0x100000001, 0x3, 0x3}}) ioctl$TUNSETTXFILTER(r0, 0x400454d1, &(0x7f0000000340)={0x1, 0x2, [@link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0xe}, @random="7006356499f5"]}) getsockopt$inet6_mreq(r0, 0x29, 0x1f, &(0x7f0000000240)={@local, 0x0}, &(0x7f0000000280)=0x14) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f00000001c0)={"736174022300001a2d7c27004478e251", r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:10 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:11 executing program 2: r0 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/zero\x00', 0x101000, 0x0) ioctl$SIOCSIFHWADDR(r0, 0x8924, &(0x7f0000000240)={'bridge_slave_0\x00', @local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}}) r1 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r1, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:11 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) setsockopt$nfc_llcp_NFC_LLCP_MIUX(r1, 0x118, 0x1, &(0x7f00000000c0)=0xc0, 0x4) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:11 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x1ffe, &(0x7f0000000040), &(0x7f0000000300), &(0x7f0000000240), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) r1 = openat$selinux_checkreqprot(0xffffffffffffff9c, &(0x7f0000000000)='/selinux/checkreqprot\x00', 0x20080, 0x0) getsockopt$inet_sctp6_SCTP_RESET_STREAMS(0xffffffffffffffff, 0x84, 0x77, &(0x7f0000000040)={0x0, 0x5, 0x4, [0x1, 0x40, 0x8, 0x4]}, &(0x7f0000000080)=0x10) getsockopt$inet_sctp_SCTP_GET_ASSOC_STATS(r1, 0x84, 0x70, &(0x7f00000000c0)={r2, @in6={{0xa, 0x4e23, 0x3, @loopback={0x0, 0x1}}}, [0x81, 0xffffffff80000000, 0x2, 0x6, 0x0, 0x0, 0x0, 0x6, 0x65a8719a, 0x80, 0x1f, 0x0, 0x83, 0x100000000, 0x5]}, &(0x7f0000000200)=0x100) 2018/05/02 09:54:11 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:11 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000000)="c28073ae0f47036eb7077d772c7d138e652ef5b2a7085f281d9d0b598b4e0db20a68c87010f23fa0237f56f9369f253d1ece6d248e917adcf0fc4fdd9d982d4bcec36ae03141b10d5fa0726a108801ed8b7926aa52c69fa4e50477ca08e0a026f4c19894c0fec336a99d134457a55752e9", &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) r1 = memfd_create(&(0x7f0000000080)='keyring\'\x00', 0x2) getsockopt$inet_mreqn(r1, 0x0, 0x10000000020, &(0x7f00000000c0)={@rand_addr, @broadcast}, &(0x7f0000000140)=0xc) [ 536.098267] FAULT_FLAG_ALLOW_RETRY missing 30 [ 536.102866] FAULT_FLAG_ALLOW_RETRY missing 30 [ 536.102877] CPU: 0 PID: 31979 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 536.102882] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 536.102899] ffff8801890d7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 536.102911] ffff8801d7764180 ffff8801890d7a20 0000000000000000 ffff8801890d7a48 [ 536.102924] ffffffff81cb75eb 0000000000000dca ffff8801bbc65108 ffff8801d776428c [ 536.102926] Call Trace: [ 536.102941] [] dump_stack+0xc1/0x128 [ 536.102952] [] handle_userfault.cold.18+0x3e/0x51 [ 536.102965] [] ? debug_check_no_locks_freed+0x210/0x210 [ 536.102977] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 536.102987] [] ? preempt_schedule+0x25/0x30 [ 536.102996] [] ? ___preempt_schedule+0x16/0x18 [ 536.103007] [] ? handle_mm_fault+0x1267/0x28e0 2018/05/02 09:54:12 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) ioctl$DRM_IOCTL_AGP_RELEASE(r0, 0x6431) r1 = socket(0x200000000000011, 0x4000000000080002, 0x3f) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$inet_sctp_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f00000000c0)={0x0}, &(0x7f0000000240)=0x8) getsockopt$inet_sctp6_SCTP_GET_PEER_ADDRS(r1, 0x84, 0x6c, &(0x7f00000003c0)={r3, 0x1000, "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"}, &(0x7f0000000280)=0x1008) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) setsockopt$netlink_NETLINK_PKTINFO(r0, 0x10e, 0x3, &(0x7f00000002c0)=0x7, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 536.103015] [] ? handle_mm_fault+0x220f/0x28e0 [ 536.103024] [] handle_mm_fault+0x221d/0x28e0 [ 536.103032] [] ? vm_insert_mixed+0x200/0x200 2018/05/02 09:54:12 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x1, 0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffd, 0x0, 0x0, 0x0, @perf_bp, 0x52c7}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 536.103044] [] __do_page_fault+0x5af/0xd50 [ 536.103053] [] ? mm_fault_error+0x2c0/0x2c0 [ 536.103063] [] ? exit_robust_list+0x220/0x220 [ 536.103071] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 536.103079] [] do_page_fault+0x27/0x30 [ 536.103087] [] page_fault+0x28/0x30 [ 536.103096] [] ? copy_user_generic_unrolled+0x86/0xc0 2018/05/02 09:54:12 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) [ 536.103107] [] ? SyS_pselect6+0x1be/0x540 [ 536.103122] [] ? SyS_select+0x1e0/0x1e0 [ 536.103130] [] ? SyS_futex+0x206/0x310 [ 536.103139] [] ? do_futex+0x1770/0x1770 [ 536.103150] [] ? security_file_ioctl+0x8f/0xc0 [ 536.103159] [] ? do_syscall_64+0x48/0x490 [ 536.103168] [] ? SyS_select+0x1e0/0x1e0 2018/05/02 09:54:12 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$inet_sctp6_SCTP_DISABLE_FRAGMENTS(r0, 0x84, 0x8, &(0x7f00000000c0)=0xb80, 0x4) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 536.103177] [] do_syscall_64+0x1a6/0x490 [ 536.103187] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 536.796417] CPU: 1 PID: 31975 Comm: syz-executor7 Not tainted 4.9.97-g1321d42 #13 [ 536.804080] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 536.813433] ffff88019c6e7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 536.821477] ffff8801b935bc80 ffff88019c6e7a20 0000000000000000 ffff88019c6e7a48 [ 536.829524] ffffffff81cb75eb 0000000000000dca ffff8801b7e6e908 ffff8801b935bd8c [ 536.837563] Call Trace: [ 536.840146] [] dump_stack+0xc1/0x128 [ 536.845503] [] handle_userfault.cold.18+0x3e/0x51 [ 536.851989] [] ? debug_check_no_locks_freed+0x210/0x210 [ 536.858995] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 536.865395] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 536.872575] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 536.879419] [] ? handle_mm_fault+0x1267/0x28e0 [ 536.885644] [] ? handle_mm_fault+0x220f/0x28e0 [ 536.891866] [] handle_mm_fault+0x221d/0x28e0 [ 536.897915] [] ? vm_insert_mixed+0x200/0x200 [ 536.903962] [] __do_page_fault+0x5af/0xd50 [ 536.909847] [] ? mm_fault_error+0x2c0/0x2c0 [ 536.915816] [] ? exit_robust_list+0x220/0x220 [ 536.922211] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 536.928899] [] do_page_fault+0x27/0x30 [ 536.934427] [] page_fault+0x28/0x30 [ 536.940137] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 536.946970] [] ? SyS_pselect6+0x1be/0x540 [ 536.952776] [] ? SyS_select+0x1e0/0x1e0 [ 536.958394] [] ? SyS_futex+0x206/0x310 [ 536.963923] [] ? do_futex+0x1770/0x1770 [ 536.969539] [] ? security_file_ioctl+0x8f/0xc0 [ 536.975763] [] ? do_syscall_64+0x48/0x490 [ 536.981552] [] ? SyS_select+0x1e0/0x1e0 [ 536.987164] [] do_syscall_64+0x1a6/0x490 [ 536.992866] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 537.014919] FAULT_FLAG_ALLOW_RETRY missing 30 [ 537.019523] CPU: 1 PID: 31994 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 537.027138] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 537.036488] ffff880187dff850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 537.044539] ffff8801d7765380 ffff880187dffa20 0000000000000000 ffff880187dffa48 [ 537.052611] ffffffff81cb75eb 0000000000000dca ffff8801d3b30908 ffff8801d776548c [ 537.061111] Call Trace: [ 537.063704] [] dump_stack+0xc1/0x128 [ 537.069060] [] handle_userfault.cold.18+0x3e/0x51 [ 537.075556] [] ? debug_check_no_locks_freed+0x210/0x210 [ 537.082568] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 537.088979] [] ? preempt_schedule+0x25/0x30 [ 537.094949] [] ? ___preempt_schedule+0x16/0x18 [ 537.101185] [] ? handle_mm_fault+0x1267/0x28e0 [ 537.107432] [] ? handle_mm_fault+0x220f/0x28e0 [ 537.113667] [] handle_mm_fault+0x221d/0x28e0 [ 537.119732] [] ? vm_insert_mixed+0x200/0x200 [ 537.125788] [] __do_page_fault+0x5af/0xd50 [ 537.131666] [] ? mm_fault_error+0x2c0/0x2c0 [ 537.137629] [] ? exit_robust_list+0x220/0x220 [ 537.143762] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 537.150419] [] do_page_fault+0x27/0x30 [ 537.155947] [] page_fault+0x28/0x30 [ 537.161215] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 537.168042] [] ? SyS_pselect6+0x1be/0x540 [ 537.173831] [] ? SyS_select+0x1e0/0x1e0 [ 537.179448] [] ? SyS_futex+0x206/0x310 [ 537.184974] [] ? do_futex+0x1770/0x1770 [ 537.190597] [] ? security_file_ioctl+0x8f/0xc0 [ 537.196845] [] ? do_syscall_64+0x48/0x490 [ 537.202634] [] ? SyS_select+0x1e0/0x1e0 [ 537.208246] [] do_syscall_64+0x1a6/0x490 [ 537.213947] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:13 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) accept$ipx(r0, &(0x7f00000000c0), &(0x7f0000000240)=0x10) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:13 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) ioctl$DRM_IOCTL_AGP_RELEASE(r0, 0x6431) r1 = socket(0x200000000000011, 0x4000000000080002, 0x3f) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$inet_sctp_SCTP_STREAM_SCHEDULER(r0, 0x84, 0x7b, &(0x7f00000000c0)={0x0}, &(0x7f0000000240)=0x8) getsockopt$inet_sctp6_SCTP_GET_PEER_ADDRS(r1, 0x84, 0x6c, &(0x7f00000003c0)={r3, 0x1000, "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"}, &(0x7f0000000280)=0x1008) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) setsockopt$netlink_NETLINK_PKTINFO(r0, 0x10e, 0x3, &(0x7f00000002c0)=0x7, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:13 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$VT_ACTIVATE(r0, 0x5606, 0x6) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) setsockopt$netlink_NETLINK_CAP_ACK(r1, 0x10e, 0xa, &(0x7f00000000c0)=0x10001, 0x4) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:13 executing program 7: r0 = openat$sequencer2(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/sequencer2\x00', 0x100, 0x0) getsockopt$inet_sctp_SCTP_AUTH_ACTIVE_KEY(0xffffffffffffffff, 0x84, 0x18, &(0x7f0000000100)={0x0, 0x9c6}, &(0x7f0000000140)=0x8) getsockopt$inet_sctp_SCTP_GET_PEER_ADDRS(r0, 0x84, 0x6c, &(0x7f00000003c0)={r1, 0xf7, "bce0cb9bf5425241eaa40443c95b19bcb27badd13e117184a169f7a8a53c1ea62d69d70c0a625d4b4e6230807c5f10d6bccd82837bf7cdd72300abe04472f69c7ee06870eb09271b4a04c73c90a437cca74ff2a984f777abc2a5f9f57e5057f6ea43267938bfa80128c844f848a3338023b2fb7f03f8c7752846f12e181baef59cad9a0316dac4dadbedb85731c90a396027831f922d51332a2c758534718d45e75e79b724cb897ec5ae8bf3f20eea0657ffe44cd8644bd3ea6c1f990f2852dd92a9a32fafefc0a16518853cb9a2d17ebe0cb042d79a4cb5dca62161d76c2c9c2c287d486eddcc60458da055266a65dc85cc195c9d2f63"}, &(0x7f00000002c0)=0xff) r2 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r2, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x9}, 0x8) r3 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r3, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r3, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:13 executing program 3: r0 = syz_open_dev$mice(&(0x7f0000000300)='/dev/input/mice\x00', 0x0, 0x10000) ioctl$sock_SIOCSIFBR(r0, 0x8941, &(0x7f00000003c0)=@get={0x1, &(0x7f0000000340)=""/112, 0x1}) r1 = openat$selinux_commit_pending_bools(0xffffffffffffff9c, &(0x7f0000000500)='/selinux/commit_pending_bools\x00', 0x1, 0x0) getsockopt$inet_sctp6_SCTP_HMAC_IDENT(r1, 0x84, 0x16, &(0x7f0000000200)={0x0, [0xe70, 0x8]}, &(0x7f0000000240)=0x5) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r2 = userfaultfd(0x0) ioctl$UFFDIO_API(r2, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r3 = openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000000)='/dev/pktcdvd/control\x00', 0x20880, 0x0) mknodat(r3, &(0x7f0000000040)='./file0\x00', 0x8000, 0x7) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) getsockopt$inet_sctp6_SCTP_DEFAULT_PRINFO(r3, 0x84, 0x72, &(0x7f0000000080)={0x0, 0x3, 0x30}, &(0x7f00000000c0)=0xc) getsockopt$inet_sctp6_SCTP_STREAM_SCHEDULER_VALUE(r3, 0x84, 0x7c, &(0x7f0000000100)={r4, 0x4, 0x2}, &(0x7f0000000140)=0x8) socket$inet_icmp_raw(0x2, 0x3, 0x1) pselect6(0x40, &(0x7f0000011fc0)={0x0, 0x0, 0x3}, &(0x7f0000011000)={0x0, 0x0, 0x0, 0x0, 0x6aa}, &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r2, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:13 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$TIOCGPGRP(0xffffffffffffff9c, 0x540f, &(0x7f00000000c0)=0x0) r2 = getpgid(0x0) tgkill(r1, r2, 0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:13 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f00000000c0)={"7386743000", 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x1, 0x2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:13 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) 2018/05/02 09:54:13 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) timerfd_gettime(r0, &(0x7f00000000c0)) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 538.554328] FAULT_FLAG_ALLOW_RETRY missing 30 [ 538.559636] CPU: 1 PID: 32032 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 538.567341] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 538.576692] ffff8801939cf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 538.584731] ffff8801b935b800 ffff8801939cfa20 0000000000000000 ffff8801939cfa48 [ 538.592769] ffffffff81cb75eb 0000000000000dca ffff8801b77e5108 ffff8801b935b90c [ 538.600805] Call Trace: [ 538.603382] [] dump_stack+0xc1/0x128 [ 538.608735] [] handle_userfault.cold.18+0x3e/0x51 [ 538.615217] [] ? debug_check_no_locks_freed+0x210/0x210 [ 538.622220] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 538.628616] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 538.635792] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 538.642623] [] ? handle_mm_fault+0x1267/0x28e0 [ 538.648845] [] ? handle_mm_fault+0x220f/0x28e0 [ 538.655063] [] handle_mm_fault+0x221d/0x28e0 [ 538.661109] [] ? vm_insert_mixed+0x200/0x200 [ 538.667159] [] __do_page_fault+0x5af/0xd50 [ 538.673034] [] ? mm_fault_error+0x2c0/0x2c0 [ 538.678996] [] ? exit_robust_list+0x220/0x220 [ 538.685395] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 538.692055] [] do_page_fault+0x27/0x30 [ 538.697583] [] page_fault+0x28/0x30 [ 538.702853] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 538.709684] [] ? SyS_pselect6+0x1be/0x540 [ 538.715469] [] ? SyS_select+0x1e0/0x1e0 [ 538.721081] [] ? SyS_futex+0x206/0x310 [ 538.726605] [] ? fd_install+0x4d/0x60 [ 538.732044] [] ? do_futex+0x1770/0x1770 [ 538.737662] [] ? SyS_socket+0x121/0x1b0 [ 538.743282] [] ? move_addr_to_kernel+0x50/0x50 [ 538.749505] [] ? do_syscall_64+0x48/0x490 [ 538.755292] [] ? SyS_select+0x1e0/0x1e0 [ 538.760904] [] do_syscall_64+0x1a6/0x490 [ 538.766605] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:14 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$inet6_tcp_TCP_REPAIR_WINDOW(r0, 0x6, 0x1d, &(0x7f00000000c0), &(0x7f0000000140)=0x14) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGPGRP(r0, 0x8904, &(0x7f0000000240)=0x0) ioctl$TIOCSPGRP(r0, 0x5410, &(0x7f0000000280)=r2) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:14 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) clock_nanosleep(0x6, 0x1, &(0x7f0000000240)={0x77359400}, &(0x7f0000000280)) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f00000000c0)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) ioctl$TIOCLINUX6(r0, 0x541c, &(0x7f0000000200)={0x6, 0x8}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000002c0)) 2018/05/02 09:54:14 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) 2018/05/02 09:54:15 executing program 3: mmap(&(0x7f0000ffc000/0x4000)=nil, 0x4000, 0x1, 0x3e, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = dup2(0xffffffffffffffff, r0) ioctl$SG_GET_NUM_WAITING(r1, 0x227d, &(0x7f0000000000)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000040)={{&(0x7f0000000000/0x400000)=nil, 0x400000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) recvmsg(r1, &(0x7f00000003c0)={0x0, 0x0, &(0x7f0000000240)=[{&(0x7f0000000080)=""/41, 0x29}, {&(0x7f00000000c0)=""/91, 0x5b}, {&(0x7f0000000140)=""/237, 0xed}, {&(0x7f0000000300)=""/140, 0x8c}], 0x4, 0x0, 0x0, 0x7ff}, 0x100) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000ffc000/0x2000)=nil, 0x2000}, 0xffffffffffffffff}) 2018/05/02 09:54:15 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000040)={0xaa}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) clock_gettime(0x6, &(0x7f0000000000)) 2018/05/02 09:54:15 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) inotify_init() perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair(0x1b, 0xf, 0x0, &(0x7f00000003c0)) recvfrom$ax25(r0, &(0x7f0000000400)=""/128, 0x80, 0x2100, &(0x7f0000000480)={0x3, {"f9d2b4f71242cc"}, 0x5}, 0x10) r2 = add_key(&(0x7f00000002c0)='asymmetric\x00', &(0x7f0000000340)={0x73, 0x79, 0x7a, 0x3}, &(0x7f0000000380)="fec7aaa64ea04f95826f5bbbc6d3a848e3edd67f235f2e41d3bf077b211f675d5c9622e5426e03b022396174dde20fa5a7250fb6328d", 0x36, 0x0) request_key(&(0x7f00000000c0)='id_resolver\x00', &(0x7f0000000240)={0x73, 0x79, 0x7a, 0x1}, &(0x7f0000000280)='\\\x00', r2) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:15 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) getsockopt$IP6T_SO_GET_REVISION_TARGET(r1, 0x29, 0x45, &(0x7f00000000c0)={'TPROXY\x00'}, &(0x7f0000000240)=0x1e) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:15 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f00000000c0)=0x400, 0x4) 2018/05/02 09:54:15 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) getsockopt$ARPT_SO_GET_ENTRIES(r1, 0x0, 0x61, &(0x7f00000000c0)={'filter\x00', 0x11, "77c0b5625f1646e8fc98da4bfb1238d7e7"}, &(0x7f0000000240)=0x35) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 540.481583] FAULT_FLAG_ALLOW_RETRY missing 30 [ 540.486279] CPU: 1 PID: 32072 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 540.493892] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 540.503241] ffff8801d8a67850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 540.511287] ffff8801b935a300 ffff8801d8a67a20 0000000000000000 ffff8801d8a67a48 [ 540.519326] ffffffff81cb75eb 0000000000000dca ffff8801874cd108 ffff8801b935a40c [ 540.527361] Call Trace: [ 540.529939] [] dump_stack+0xc1/0x128 [ 540.535297] [] handle_userfault.cold.18+0x3e/0x51 [ 540.541780] [] ? debug_check_no_locks_freed+0x210/0x210 [ 540.548788] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 540.555186] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 540.562365] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 540.569193] [] ? handle_mm_fault+0x1267/0x28e0 [ 540.575412] [] ? handle_mm_fault+0x220f/0x28e0 [ 540.581631] [] handle_mm_fault+0x221d/0x28e0 [ 540.587680] [] ? vm_insert_mixed+0x200/0x200 [ 540.593732] [] __do_page_fault+0x5af/0xd50 [ 540.599610] [] ? mm_fault_error+0x2c0/0x2c0 [ 540.605604] [] ? exit_robust_list+0x220/0x220 [ 540.611759] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 540.618417] [] do_page_fault+0x27/0x30 [ 540.623945] [] page_fault+0x28/0x30 [ 540.629211] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 540.636042] [] ? SyS_pselect6+0x1be/0x540 [ 540.641829] [] ? SyS_select+0x1e0/0x1e0 [ 540.647447] [] ? SyS_futex+0x206/0x310 [ 540.652976] [] ? do_futex+0x1770/0x1770 [ 540.658590] [] ? security_file_ioctl+0x8f/0xc0 [ 540.664811] [] ? do_syscall_64+0x48/0x490 [ 540.670601] [] ? SyS_select+0x1e0/0x1e0 [ 540.676212] [] do_syscall_64+0x1a6/0x490 [ 540.681912] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:16 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:16 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:17 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = openat$selinux_avc_hash_stats(0xffffffffffffff9c, &(0x7f0000000000)='/selinux/avc/hash_stats\x00', 0x0, 0x0) ioctl$KDMKTONE(r1, 0x4b30, 0xa0b9) r2 = openat$full(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/full\x00', 0x1ffff, 0x0) setsockopt$packet_int(r2, 0x107, 0x6, &(0x7f0000000040)=0xe4, 0xfffffffffffffdfb) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x3000)=nil, 0x3000}, 0x800000000000001}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x3}) 2018/05/02 09:54:17 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x1000000000000238, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:17 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 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_bp, 0x0, 0x4}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:17 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$TIOCOUTQ(r0, 0x5411, &(0x7f00000000c0)) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) close(r1) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:17 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:17 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) r2 = syz_genetlink_get_family_id$team(&(0x7f0000000240)='team\x00') sendmsg$TEAM_CMD_OPTIONS_GET(r0, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x200000}, 0xc, &(0x7f0000000280)={&(0x7f0000000340)={0x7f4, r2, 0x900, 0x70bd25, 0x25dfdbfb, {0x2}, [{{0x8, 0x1, r1}, {0xc8, 0x2, [{0x38, 0x1, @mcast_rejoin_count={{0x24, 0x1, 'mcast_rejoin_count\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0x1}}}, {0x40, 0x1, @lb_port_stats={{{0x24, 0x1, 'lb_port_stats\x00'}, {0x8, 0x3, 0xb}, {0x8, 0x4, 0x4}}, {0x8, 0x6, r1}}}, {0x4c, 0x1, @bpf_hash_func={{0x24, 0x1, 'bpf_hash_func\x00'}, {0x8, 0x3, 0xb}, {0x1c, 0x4, [{0x0, 0x3, 0xffff, 0x9}, {0x1, 0x1000, 0x658e1722, 0xfff}, {0xfff, 0x7, 0x2, 0x1}]}}}]}}, {{0x8, 0x1, r1}, {0x13c, 0x2, [{0x38, 0x1, @mcast_rejoin_interval={{0x24, 0x1, 'mcast_rejoin_interval\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0xd4b}}}, {0x44, 0x1, @bpf_hash_func={{0x24, 0x1, 'bpf_hash_func\x00'}, {0x8, 0x3, 0xb}, {0x14, 0x4, [{0x7, 0x100000000, 0x5, 0x100000000}, {0x0, 0xfff, 0x9, 0x2}]}}}, {0x38, 0x1, @notify_peers_count={{0x24, 0x1, 'notify_peers_count\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0x146a}}}, {0x4c, 0x1, @lb_tx_method={{0x24, 0x1, 'lb_tx_method\x00'}, {0x8, 0x3, 0x5}, {0x1c, 0x4, 'hash_to_port_mapping\x00'}}}, {0x38, 0x1, @notify_peers_interval={{0x24, 0x1, 'notify_peers_interval\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0xc63d}}}]}}, {{0x8, 0x1, r1}, {0xfc, 0x2, [{0x44, 0x1, @name={{0x24, 0x1, 'mode\x00'}, {0x8, 0x3, 0x5}, {0x14, 0x4, 'activebackup\x00'}}}, {0x3c, 0x1, @user_linkup_enabled={{{0x24, 0x1, 'user_linkup_enabled\x00'}, {0x8, 0x3, 0x6}, {0x4, 0x4}}, {0x8, 0x6, r1}}}, {0x3c, 0x1, @enabled={{{0x24, 0x1, 'enabled\x00'}, {0x8, 0x3, 0x6}, {0x4, 0x4}}, {0x8, 0x6, r1}}}, {0x3c, 0x1, @user_linkup={{{0x24, 0x1, 'user_linkup\x00'}, {0x8, 0x3, 0x6}, {0x4, 0x4}}, {0x8, 0x6, r1}}}]}}, {{0x8, 0x1, r1}, {0x1f0, 0x2, [{0x3c, 0x1, @user_linkup={{{0x24, 0x1, 'user_linkup\x00'}, {0x8, 0x3, 0x6}, {0x4, 0x4}}, {0x8, 0x6, r1}}}, {0x40, 0x1, @priority={{{0x24, 0x1, 'priority\x00'}, {0x8, 0x3, 0xe}, {0x8, 0x4, 0x6}}, {0x8, 0x6, r1}}}, {0x40, 0x1, @lb_tx_hash_to_port_mapping={{{0x24, 0x1, 'lb_tx_hash_to_port_mapping\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, r1}}, {0x8, 0x7}}}, {0x40, 0x1, @lb_port_stats={{{0x24, 0x1, 'lb_port_stats\x00'}, {0x8, 0x3, 0xb}, {0x8, 0x4, 0x9}}, {0x8, 0x6, r1}}}, {0x38, 0x1, @mcast_rejoin_count={{0x24, 0x1, 'mcast_rejoin_count\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0x8}}}, {0x40, 0x1, @name={{0x24, 0x1, 'mode\x00'}, {0x8, 0x3, 0x5}, {0x10, 0x4, 'roundrobin\x00'}}}, {0x38, 0x1, @notify_peers_interval={{0x24, 0x1, 'notify_peers_interval\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0x8}}}, {0x40, 0x1, @lb_port_stats={{{0x24, 0x1, 'lb_port_stats\x00'}, {0x8, 0x3, 0xb}, {0x8, 0x4, 0x5}}, {0x8, 0x6, r1}}}]}}, {{0x8, 0x1, r1}, {0x7c, 0x2, [{0x3c, 0x1, @lb_tx_method={{0x24, 0x1, 'lb_tx_method\x00'}, {0x8, 0x3, 0x5}, {0xc, 0x4, 'hash\x00'}}}, {0x3c, 0x1, @name={{0x24, 0x1, 'mode\x00'}, {0x8, 0x3, 0x5}, {0xc, 0x4, 'random\x00'}}}]}}, {{0x8, 0x1, r1}, {0x44, 0x2, [{0x40, 0x1, @priority={{{0x24, 0x1, 'priority\x00'}, {0x8, 0x3, 0xe}, {0x8, 0x4, 0x5}}, {0x8, 0x6, r1}}}]}}, {{0x8, 0x1, r1}, {0x3c, 0x2, [{0x38, 0x1, @lb_stats_refresh_interval={{0x24, 0x1, 'lb_stats_refresh_interval\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0xd74c}}}]}}, {{0x8, 0x1, r1}, {0x1b4, 0x2, [{0x38, 0x1, @mcast_rejoin_count={{0x24, 0x1, 'mcast_rejoin_count\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0xd91}}}, {0x40, 0x1, @lb_tx_hash_to_port_mapping={{{0x24, 0x1, 'lb_tx_hash_to_port_mapping\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, r1}}, {0x8, 0x7}}}, {0x40, 0x1, @priority={{{0x24, 0x1, 'priority\x00'}, {0x8, 0x3, 0xe}, {0x8, 0x4, 0xb5}}, {0x8, 0x6, r1}}}, {0x4c, 0x1, @lb_tx_method={{0x24, 0x1, 'lb_tx_method\x00'}, {0x8, 0x3, 0x5}, {0x1c, 0x4, 'hash_to_port_mapping\x00'}}}, {0x38, 0x1, @notify_peers_interval={{0x24, 0x1, 'notify_peers_interval\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0x8}}}, {0x38, 0x1, @notify_peers_count={{0x24, 0x1, 'notify_peers_count\x00'}, {0x8, 0x3, 0x3}, {0x8, 0x4, 0xfffffffffffffffa}}}, {0x3c, 0x1, @user_linkup_enabled={{{0x24, 0x1, 'user_linkup_enabled\x00'}, {0x8, 0x3, 0x6}, {0x4, 0x4}}, {0x8, 0x6, r1}}}]}}]}, 0x7f4}, 0x1, 0x0, 0x0, 0x8000}, 0x40800) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:17 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) fstat(r0, &(0x7f00000002c0)={0x0, 0x0, 0x0, 0x0, 0x0}) ioctl$TUNSETOWNER(r0, 0x400454cc, r3) socketpair$unix(0x1, 0xfffffffffeffffff, 0x0, &(0x7f0000000280)) 2018/05/02 09:54:17 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) tee(r0, r0, 0x7, 0xc) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) keyctl$set_reqkey_keyring(0xe, 0x7) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000002c0)) 2018/05/02 09:54:17 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) vmsplice(r0, &(0x7f0000000100)=[{&(0x7f0000000300)="05f103ef00b458bbbde2503334074337b54b162485ffcf44f19d562fe67439b77b4b0429b380dca76992607ac6e81b7c4b2d7d28462e3637cbdbc4f70d9b3b5353d5ce6a57e3e0bb7e34c0bc4764952c7c3ccb00938942e5cacf6a2256ad3358762932a1e57e1ed191fa32046cbc0cb3af45f76d0a768e17952fc24399a58bbe3f02dfe6303557d894af960390c7dd6c90c0f8d28a24db38a6a535b1dd755284af3cdbebf032ae92781686fa6b44c4c62ae4871fd08890eaca13d6175750129697c5f8a7af6ecf32f32b63a6b2", 0xcd}], 0x1, 0xe) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000000080)={0xaa, 0x2}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_COPY(r0, 0xc028aa03, &(0x7f00000000c0)={&(0x7f0000013000/0x2000)=nil, 0x2000}) r1 = syz_open_procfs(0xffffffffffffffff, &(0x7f0000000000)='net/dev\x00') setsockopt$bt_BT_VOICE(r1, 0x112, 0xb, &(0x7f0000000040)=0x80000000, 0x2) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000000140)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:18 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$ipx_IPX_TYPE(r0, 0x100, 0x1, &(0x7f0000000240), &(0x7f0000000280)=0x4) getsockopt$inet_sctp_SCTP_SOCKOPT_PEELOFF(r0, 0x84, 0x66, &(0x7f0000000180)={0x0, 0x7ff}, &(0x7f0000000340)=0x8) getsockopt$inet_sctp_SCTP_DELAYED_SACK(r0, 0x84, 0x10, &(0x7f00000003c0)=@sack_info={r3, 0x6, 0x5}, &(0x7f0000000400)=0xc) poll(&(0x7f00000000c0)=[{r1, 0x8000}], 0x1, 0x1000) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f00000002c0)=0x200000000110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:18 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) recvfrom(r0, &(0x7f00000003c0)=""/241, 0xf1, 0x0, &(0x7f0000000240)=@pppol2tpv3={0x18, 0x1, {0x0, r0, {0x2, 0x4e24, @loopback=0x7f000001}, 0x0, 0x1, 0x2, 0x2}}, 0x80) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) ioctl$TIOCGPGRP(r0, 0x540f, &(0x7f0000000340)=0x0) getsockopt$inet6_IPV6_XFRM_POLICY(r1, 0x29, 0x23, &(0x7f0000001b00)={{{@in6=@mcast1, @in6=@remote, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in=@multicast2}, 0x0, @in6=@mcast2}}, &(0x7f0000001c00)=0xe8) r6 = getgid() r7 = gettid() getsockopt$inet_IP_XFRM_POLICY(r1, 0x0, 0x11, &(0x7f0000001c40)={{{@in=@multicast2, @in, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6=@local}, 0x0, @in=@rand_addr}}, &(0x7f0000001d40)=0xe8) r9 = getgid() sendmsg$unix(r0, &(0x7f0000001e40)={&(0x7f00000004c0)=@file={0x1, './file0\x00'}, 0x6e, &(0x7f0000001a40)=[{&(0x7f0000000540)="c13c4cc02cb5f0f08a488249bca14cbfb7216a34d81f19e9f8eaf84e5365e3735b3419e03dde469d7973172cf124cecc67379f0262e7f94aa9e817464f78a8618a71471ab9e9d9665500537c2dc3cb41af64ebd23c91db8c90cce275897ae0a0766b4586faf010b444aecd98522e74c9b0270151de118ba906bff5f598d9290d41bc1e3e4d7be169ed3ce545", 0x8c}, {&(0x7f0000000600)="7ac90106a498c39ca516652bf2cfe9ce2ef17acca661cacb99155b99e15da75de5463bd65d93f501c648c1f0857bdf2a3a454abc73bf3a082acaccbb9f4046f9addda205b042b6", 0x47}, {&(0x7f0000000680)="d50dd0302946c99277b1dbfc390e0273f210b66a4a17b4b89486fda97dc7c7edb8c7445abfc849975ea450c11ff1241175a7f546f2e2b1b00c08204c237cfa37746b8116596cbc4c2d03291807b2b9878ad402121398572c2004006be6878dd1f02171eac3ee971ec34bb78f96eca50d72836990186e17bda1aa2da5c83d6ce459694dc7c8a474b5fa59ca12e06ee92cdea26a91bc50773337d240767ee6", 0x9e}, {&(0x7f0000000740)="3046710001c37fa4fafe21b547383c8b43ced14973bb47641dff4fa624954c602d415288b930246714d92958822b6d40d4c655eb933502536aab1c9e2420d67bdbecf5e5973a4d7e461da802f9c01e7e0fb69ebce6c16cca906cb521504506228768fc1f4ef8e193425b0f1130b677396230f7", 0x73}, {&(0x7f00000007c0)="bef70d6e1e6fd86fd9606c2faa8b576943bcaaba8438fe46447ec0dfdd4219fc42ef255558a4e9778099c9e706fa908d73fbeeaea103e76c960155e33176185f3fe40d1d31457b3aaf09d4fca1dd2e21c7ea15ceb0c515b7266f1604d95b98ca63a4963166c37b49cf5643a05a29fedf98faa37eddf6eed27e2e5c6ea1eb96836af0346c1cc4feeb0087d224c99ab8e4", 0x90}, {&(0x7f00000000c0)="eb8e6cec20b35d2dbeeca35d9df125914b0b319e23172e3186352be51898eb63a8ef8e4769600e6fb3b52e94ceb67dfb651678c4", 0x34}, {&(0x7f0000000880)="1307f9d0a1a8ca750d15a2cad5f0a39814308abf8aba8e38c5ae172e6e1ff9e10b4bc884cfab9454bfeb790b4c8af36fcc276f10c34e41d79673ab954800a8d5cc5b8e9f8e22c7845eece8873bc4d1a23b7275c7c88ce8ffc62902e691e1cbf3470bc781cf63bef9277c356f11cc642380ab6495a3a63ad68621d991b351469d0235d662b462a05f28d15cbef82e7f893d23fbe4", 0x94}, {&(0x7f00000002c0)="2846d67f7f9ccc5943dd7f", 0xb}, {&(0x7f0000000940)="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0x1000}, {&(0x7f0000001940)="7d2fd7f73cc482777a27932283d266bc9b533c247d05d5edc25ad7aa12e9d867ecb5fc2954ec67e8b7ae2d9dad74c762b53c955fdfdb07d046a10c4285ea8f8d655a23885c671c2132af7cc0f250874916b132706278fe069016336a4f6ccb16bc50902a05c7b088986aa64d07bea9b871bfd911137a8f859a4c4818be1cd015e386fcdf7ad34397943705e1ef7a99de51d9361e00e720f852719ad53191e124e832258802f292c9fa10e9f81765136b4248956aa2ee454287acde0eb49dceac57d6a662434a84bf", 0xc8}], 0xa, &(0x7f0000001ec0)=ANY=[@ANYBLOB="18001c00000000000100000001000000", @ANYRES32=r1, @ANYRES32=r0, @ANYBLOB="20000000000000000100000002000000", @ANYRES32=r4, @ANYRES32=r5, @ANYRES32=r6, @ANYBLOB="0000000020000000000000000100000001000000", @ANYRES32=r0, @ANYRES32=r1, @ANYRES32=r1, @ANYBLOB="0000000018000000000000000100000001000000", @ANYRES32=r2, @ANYBLOB="0000000020000000000000000100000002000000f17c6321acdc0379ee40e5b13daac63da671eefd6bf59dfac1c9be982f6502842847209d0338100c4fc0100fd32849fd61de751eeeb6a207c9ea1e96bf66996e7b260e836b92781bdd95dab58cef90d7f8c113ba0ce07082f8203b27a1a59a51716eb593031b957c975b0a5644d604ad725ac2438d", @ANYRES32=r7, @ANYRES32=r8, @ANYRES32=r9, @ANYBLOB="0000000020000000000000000100000001000000", @ANYRES32=r1, @ANYRES32=r2, @ANYRES32=r1, @ANYBLOB='\x00\x00\x00\x00'], 0xb0, 0x20048000}, 0x4) fcntl$getflags(r2, 0x408) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) dup3(r2, r10, 0x80000) [ 543.077464] FAULT_FLAG_ALLOW_RETRY missing 30 [ 543.082186] CPU: 0 PID: 32135 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 543.089802] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 543.099153] ffff8801b8eb7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 543.107245] ffff8801d7764d80 ffff8801b8eb7a20 0000000000000000 ffff8801b8eb7a48 [ 543.115284] ffffffff81cb75eb 0000000000000dca ffff8801ca476908 ffff8801d7764e8c [ 543.123327] Call Trace: [ 543.125910] [] dump_stack+0xc1/0x128 [ 543.131271] [] handle_userfault.cold.18+0x3e/0x51 [ 543.137758] [] ? debug_check_no_locks_freed+0x210/0x210 [ 543.144765] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 543.151172] [] ? preempt_schedule+0x25/0x30 [ 543.157232] [] ? ___preempt_schedule+0x16/0x18 [ 543.163460] [] ? handle_mm_fault+0x1267/0x28e0 [ 543.169686] [] ? handle_mm_fault+0x220f/0x28e0 [ 543.175912] [] handle_mm_fault+0x221d/0x28e0 [ 543.181969] [] ? vm_insert_mixed+0x200/0x200 [ 543.188027] [] __do_page_fault+0x5af/0xd50 [ 543.193910] [] ? mm_fault_error+0x2c0/0x2c0 [ 543.199882] [] ? exit_robust_list+0x220/0x220 [ 543.206032] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 543.212698] [] do_page_fault+0x27/0x30 [ 543.218233] [] page_fault+0x28/0x30 [ 543.223508] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 543.230344] [] ? SyS_pselect6+0x1be/0x540 [ 543.236137] [] ? SyS_select+0x1e0/0x1e0 [ 543.241758] [] ? SyS_futex+0x206/0x310 [ 543.247293] [] ? do_futex+0x1770/0x1770 [ 543.252912] [] ? security_file_ioctl+0x8f/0xc0 [ 543.259202] [] ? do_syscall_64+0x48/0x490 [ 543.264994] [] ? SyS_select+0x1e0/0x1e0 [ 543.270614] [] do_syscall_64+0x1a6/0x490 [ 543.276321] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:19 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) sendmsg$unix(r1, &(0x7f0000000340)={&(0x7f0000000240)=@abs={0x1, 0x0, 0x4e20}, 0xffffff7e, &(0x7f00000000c0)=[{&(0x7f00000003c0)="7f817827d936762587b7515133d38118521c260420f9702545585a691bae2fea1dec8ba07941601797d9d750fff0d3c92e6aa2286801014a7e816610160562ae3d033b9ed4ccef3b403f6f7a275aa8fde0e4c06529968d41f2842a342727f05fc51df8ad8fb7c569586e67150433d1de5c3b9ae7e7172edc4c9d9384626211674eb7ab6f9e06ea09f4b72779da78e8f3f0ab195a6589cb87aefc3b22f558", 0x9e}], 0x1, &(0x7f0000000480)=[@rights={0x18, 0x1, 0x1, [r2]}], 0x18, 0x8800}, 0x0) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$packet_add_memb(r1, 0x107, 0x1, &(0x7f00000002c0)={0x0, 0x1, 0x6, @random="bfe5c76bdc83"}, 0x10) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) getsockopt$ARPT_SO_GET_ENTRIES(r1, 0x0, 0x61, &(0x7f00000004c0)={'filter\x00', 0x94, "dac4ebca364c806fcc7d8fd67baf4765071e26701b735a4f187217b5cb7286e15e8e81b30e94ab107c855c453bf889791782d7eeb15a0c6cd3bdca525a556a3ffd3232843ea2fdaa15c0705a21f9127c14092ae7b7c8e23f38f4387ffd5a90a170c02003c3519e0221f80e281ca35d7f206773d26febede02e484504991cd4f82cf254ef30f70d13b3006e5cc5c62469d986076b"}, &(0x7f0000000580)=0xb8) 2018/05/02 09:54:19 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:19 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) epoll_pwait(r0, &(0x7f00000000c0)=[{}, {}, {}, {}, {}], 0x5, 0xd7, &(0x7f0000000240)={0x1}, 0x8) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:19 executing program 3: r0 = socket$inet6(0xa, 0x4, 0x9) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x36, r0, 0x0) r1 = userfaultfd(0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r2 = openat$zero(0xffffffffffffff9c, &(0x7f0000000080)='/dev/zero\x00', 0x10000, 0x0) ioctl$sock_inet_SIOCSIFNETMASK(r2, 0x891c, &(0x7f00000000c0)={'vcan0\x00', {0x2, 0x4e24, @loopback=0x7f000001}}) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) r3 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000000)='/dev/autofs\x00', 0x2, 0x0) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r1, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) setsockopt$SO_VM_SOCKETS_CONNECT_TIMEOUT(r3, 0x28, 0x6, &(0x7f0000000040), 0x10) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:19 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff}) fcntl$getownex(r0, 0x10, &(0x7f0000000140)) epoll_ctl$EPOLL_CTL_MOD(r0, 0x3, r3, &(0x7f00000000c0)={0x80000000}) 2018/05/02 09:54:19 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) r2 = memfd_create(&(0x7f00000000c0)='sit0\x00', 0x2da4e1ae6d2dc70f) epoll_ctl$EPOLL_CTL_ADD(r2, 0x1, r2, &(0x7f0000000240)={0x2}) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000), 0xf1}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) getsockopt$inet_sctp6_SCTP_PR_ASSOC_STATUS(r0, 0x84, 0x73, &(0x7f0000000280)={0x0, 0x5, 0x30, 0x8, 0x9871}, &(0x7f00000002c0)=0x18) 2018/05/02 09:54:19 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$BLKSECDISCARD(r0, 0x127d, &(0x7f00000000c0)=0x8) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$IP_VS_SO_SET_ADDDEST(r1, 0x0, 0x487, &(0x7f0000000240)={{0x87, @rand_addr=0x4781, 0x4e22, 0x4, 'lc\x00', 0x1, 0x0, 0x50}, {@dev={0xac, 0x14, 0x14, 0x1e}, 0x4e23, 0x2, 0x8001, 0x1}}, 0x44) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:19 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) accept4$packet(r1, &(0x7f0000000340)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @dev}, &(0x7f00000003c0)=0x14, 0x800) getpeername$packet(r1, &(0x7f0000000440)={0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @remote}, &(0x7f0000000480)=0x14) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000400)={'sit0\x00', r2}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:19 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) r1 = openat$uinput(0xffffffffffffff9c, &(0x7f0000000000)='/dev/uinput\x00', 0x0, 0x0) ioctl$TUNSETVNETLE(r1, 0x400454dc, &(0x7f0000000040)=0x1) 2018/05/02 09:54:19 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x7c, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) mmap(&(0x7f0000ffd000/0x2000)=nil, 0x2000, 0x1000000, 0x8010, r2, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:19 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) socket$inet6_dccp(0xa, 0x6, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x492492492492510, 0x0) setsockopt$inet_sctp6_SCTP_FRAGMENT_INTERLEAVE(r1, 0x84, 0x12, &(0x7f00000000c0)=0xfff, 0x4) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) getsockopt$packet_int(r1, 0x107, 0x1e, &(0x7f0000000140), &(0x7f0000000240)=0x4) 2018/05/02 09:54:20 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) r2 = openat$urandom(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/urandom\x00', 0x1a1080, 0x0) ioctl$TCSETSW(r2, 0x5403, &(0x7f0000000240)={0x75a, 0x1, 0x8, 0x0, 0x6, 0x5, 0x33f64a7b, 0x7, 0x8, 0x1, 0x4, 0x2}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:20 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) setsockopt$bt_l2cap_L2CAP_CONNINFO(r0, 0x6, 0x2, &(0x7f00000000c0)={0x8, 0x8, 0x400, 0x1}, 0x6) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 545.015759] FAULT_FLAG_ALLOW_RETRY missing 30 [ 545.020510] CPU: 1 PID: 32199 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 545.028131] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 545.037479] ffff8801920d7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 545.045522] ffff8801b935b200 ffff8801920d7a20 0000000000000000 ffff8801920d7a48 [ 545.053564] ffffffff81cb75eb 0000000600000007 ffff8801c4e53000 ffff8801b935b30c [ 545.061610] Call Trace: [ 545.064193] [] dump_stack+0xc1/0x128 [ 545.069551] [] handle_userfault.cold.18+0x3e/0x51 [ 545.076032] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 545.082600] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 545.088995] [] ? check_preemption_disabled+0x3b/0x170 [ 545.095824] [] ? retint_kernel+0x2d/0x2d [ 545.101527] [] ? lock_acquire+0x173/0x3e0 [ 545.107319] [] ? handle_mm_fault+0x1267/0x28e0 [ 545.113541] [] ? handle_mm_fault+0x220f/0x28e0 [ 545.119762] [] handle_mm_fault+0x221d/0x28e0 [ 545.125809] [] ? vm_insert_mixed+0x200/0x200 [ 545.131858] [] __do_page_fault+0x5af/0xd50 [ 545.137730] [] ? mm_fault_error+0x2c0/0x2c0 [ 545.143693] [] ? exit_robust_list+0x220/0x220 [ 545.149827] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 545.156486] [] do_page_fault+0x27/0x30 [ 545.162014] [] page_fault+0x28/0x30 [ 545.167278] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 545.174107] [] ? SyS_pselect6+0x1be/0x540 [ 545.179892] [] ? SyS_select+0x1e0/0x1e0 [ 545.185509] [] ? SyS_futex+0x206/0x310 [ 545.191040] [] ? do_futex+0x1770/0x1770 [ 545.196656] [] ? security_file_ioctl+0x8f/0xc0 [ 545.202880] [] ? do_syscall_64+0x48/0x490 [ 545.208667] [] ? SyS_select+0x1e0/0x1e0 [ 545.214283] [] do_syscall_64+0x1a6/0x490 [ 545.219984] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:21 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) sendto$inet6(r0, &(0x7f0000000240)="f4603af82d6c5d4b5b502ccc3903449a0e61f1d4c6ec40058c2825094837cc1c1d0304d5e7046172e7790c05aae2ebf9260835eed06c4fba171e26b41831e0deb20f42ecb256e35e1e395b27919b1fc314bca6d7ecf0f13f581538579369dd01ba8c50b09f4a1e21d04821f85130fa36b9da01a8a9c905e4878bb4a73d9f6fabd0534877e720c1bfc58839b3573e1b", 0x8f, 0x4000, 0x0, 0x0) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f00000000c0)={'veth0_to_bridge\x00', r2}) 2018/05/02 09:54:21 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00'}) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:22 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00'}) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:22 executing program 3: r0 = openat$selinux_relabel(0xffffffffffffff9c, &(0x7f0000000200)='/selinux/relabel\x00', 0x2, 0x0) fcntl$F_GET_RW_HINT(r0, 0x40b, &(0x7f0000000240)) r1 = openat$uinput(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/uinput\x00', 0x4000, 0x0) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r2 = userfaultfd(0x0) ioctl$UFFDIO_API(r2, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000014000/0x4000)=nil, 0x4000}, 0x3}) getpeername$inet(r1, &(0x7f0000000280)={0x0, 0x0, @rand_addr}, &(0x7f00000002c0)=0x10) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000)={0x0, 0x0, 0x0, 0x0, 0x0, 0xfffffffffffffffe}, &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r2, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) epoll_ctl$EPOLL_CTL_MOD(r1, 0x3, r2, &(0x7f0000000340)={0x10}) creat(&(0x7f0000000000)='./file0\x00', 0x101) r3 = openat$selinux_enforce(0xffffffffffffff9c, &(0x7f0000000040)='/selinux/enforce\x00', 0x38001, 0x0) socket$inet_icmp_raw(0x2, 0x3, 0x1) ioctl$ION_IOC_HEAP_QUERY(r1, 0xc0184908, &(0x7f0000000080)={0x401, 0x10, 0x1, r3}) clone(0x0, &(0x7f0000000240), &(0x7f0000000180), &(0x7f0000000300), &(0x7f0000000140)="5f2a0873d257a68f2a068469b1a2dad884c47c") ioctl$UFFDIO_REGISTER(r2, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) openat$selinux_avc_hash_stats(0xffffffffffffff9c, &(0x7f0000000100)='/selinux/avc/hash_stats\x00', 0x0, 0x0) 2018/05/02 09:54:22 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$TIOCGPGRP(r0, 0x540f, &(0x7f0000000140)=0x0) ioctl$sock_FIOSETOWN(r0, 0x8901, &(0x7f00000002c0)=r3) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) r5 = getpgrp(0x0) perf_event_open(&(0x7f0000000240)={0x3, 0x70, 0x0, 0x1f, 0x7fffffff, 0xffffffff, 0x0, 0x5, 0x0, 0x8, 0x5, 0x40, 0x1, 0x6, 0x7fff, 0xffffffff, 0x7, 0x401, 0x0, 0x2b, 0x9, 0x2, 0x9, 0x8, 0xfff, 0x4, 0x7, 0x1, 0x8, 0x1, 0x2, 0x0, 0xffffffffffffffff, 0x4, 0x8000, 0x0, 0x7, 0x8001, 0x0, 0x6, 0x2, @perf_bp={&(0x7f00000000c0), 0x4}, 0x20000, 0x9, 0x3, 0x4, 0xc699, 0xfffffffffffffffd, 0x8001}, r5, 0xa, r2, 0x1) 2018/05/02 09:54:22 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) ioctl$sock_SIOCGPGRP(r0, 0x8904, &(0x7f00000000c0)=0x0) r4 = getpid() setpgid(r3, r4) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:22 executing program 2: r0 = openat$sequencer2(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/sequencer2\x00', 0x101080, 0x0) getsockopt$inet6_mreq(0xffffffffffffff9c, 0x29, 0x14, &(0x7f00000003c0)={@local, 0x0}, &(0x7f0000000400)=0x14) setsockopt$inet_mreqn(r0, 0x0, 0x20, &(0x7f0000000440)={@empty, @local={0xac, 0x14, 0x14, 0xaa}, r1}, 0xc) r2 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r2, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r3 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r3, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r3, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:22 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f00000000c0)) 2018/05/02 09:54:22 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000240)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) signalfd(r0, &(0x7f00000000c0)={0xffffffff7fffffff}, 0x8) epoll_ctl$EPOLL_CTL_ADD(r0, 0x1, r2, &(0x7f0000000280)) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$KDADDIO(r0, 0x4b34, 0x7fff) 2018/05/02 09:54:22 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/snapshot\x00', 0x4000, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x8, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xf}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) getsockopt$bt_BT_FLUSHABLE(r1, 0x112, 0x8, &(0x7f0000000240)=0x200, &(0x7f0000000280)=0x4) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:22 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x10010, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x10000000000800) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) r1 = openat$keychord(0xffffffffffffff9c, &(0x7f0000000180)='/dev/keychord\x00', 0x4000, 0x0) ioctl$DRM_IOCTL_GET_CAP(r1, 0xc010640c, &(0x7f0000000300)={0x4, 0x400}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_UNREGISTER(r0, 0x8010aa01, &(0x7f0000000100)={&(0x7f0000012000/0x1000)=nil, 0x1000}) socketpair(0x15, 0x0, 0x9, &(0x7f0000000140)={0xffffffffffffffff, 0xffffffffffffffff}) ioctl$SNDRV_SEQ_IOCTL_REMOVE_EVENTS(r2, 0x4040534e, &(0x7f0000000200)={0x1, @tick=0xfffffffffffffffd, 0x200, {0x8, 0x5}, 0x4, 0x3, 0x1}) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(0xffffffffffffffff, 0xc00c642d, &(0x7f0000000000)={0x0, 0x80000, 0xffffffffffffff9c}) ioctl$DRM_IOCTL_RES_CTX(0xffffffffffffff9c, 0xc0106426, &(0x7f0000000080)={0x8, &(0x7f0000000040)=[{}, {}, {}, {0x0}, {}, {}, {}, {}]}) ioctl$DRM_IOCTL_GET_CTX(r4, 0xc0086423, &(0x7f00000000c0)={r5, 0x1}) ioctl$void(r3, 0xc0045878) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000ffc000/0x1000)=nil, 0x1000}, 0x1}) 2018/05/02 09:54:22 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) r1 = openat$null(0xffffffffffffff9c, &(0x7f0000000100)='/dev/null\x00', 0x200400, 0x0) ioctl$SNDRV_SEQ_IOCTL_CLIENT_ID(r1, 0x80045301, &(0x7f0000000140)) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa, 0xc}) r2 = openat$urandom(0xffffffffffffff9c, &(0x7f0000000000)='/dev/urandom\x00', 0x40, 0x0) setsockopt$inet_tcp_buf(r2, 0x6, 0x2f, &(0x7f0000000040)="881f7cbde1a5357e36d7b19a8b9a19ecd545285fa1d349cb7cb00f83a1581a91afc2b0ff0b76465c7e7c951681f39499fc191ef370505d1c08dbdfb5dde2e6e6516167aaebc97658c6ec3cce36859f8fb2b1e8e65012855bd013345206c750751e29daae5f3aea62766d0ad3f0599f975483a831faea3d36b8c262eacc5e46a89454e867ebf9898bc86f6be7a0701b9532602d7f4cd613c211", 0x99) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) setsockopt$bt_l2cap_L2CAP_OPTIONS(r1, 0x6, 0x1, &(0x7f0000000180)={0x401, 0x8, 0x4, 0x24, 0xbb28, 0xea30, 0x80000000}, 0xc) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:22 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00'}) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:22 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) setsockopt$IP_VS_SO_SET_FLUSH(r0, 0x0, 0x485, 0x0, 0x0) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) r1 = openat$autofs(0xffffffffffffff9c, &(0x7f0000000080)='/dev/autofs\x00', 0x80, 0x0) sendmmsg$nfc_llcp(r1, &(0x7f0000000c40)=[{&(0x7f0000000200)={0x27, 0x0, 0x2, 0x0, 0x9, 0x4, "037679b9cc8980e9949855eb3a8b873a37014fb0ccf12859dca57c70c699b7579406b3ae43626b3cce297ff13a90ae9653c2f63223ee3674d22d5064b519da", 0x1a}, 0x60, &(0x7f0000000780)=[{&(0x7f0000000300)="49cebc51ebc74faaa417fa984530db1fb61ed1bff875a94952478d8a9fb4a0097471c965c27ccbeed70dbb9c9b5f2c1e2d4fc0de765627c74a5d497fa554a3c1f781cf61a47e39f25e5360d4e43eff6eee4ea04632da40fc83a294886e11c041c1f97a7c057a7a5619030deecfc8b82bf7b739fc207aac1251be13ccae71354ad4264fc7bd040935fb6b08550da0a674061124e0", 0x94}, {&(0x7f0000000440)="00bbf9f26c7a3620a858e3ac37e7ea56efa90ea25aa3beb9f7440fd66f6e13a1f3209cefd57732123328410fdb8d8b7217eac7da2177744960ec5f422709c20ddac6b40098b2423ade377690a5189f7ea80a24dd89f2c2a627309fecfb0e800735ea167ada54e821b108e613c6a0e539ee247f9fa9864f704d5b5db839a3f25ce3e5dc05457ae41b449d3190d5fdf110dcb487", 0x93}, {&(0x7f0000000500)="1dce4e6d0c2a1812c43bf47361d12e62f18f2563ce171cb3917e6bdc0d422976703db313ca0faade1732268a40dba9d1ecc91db48c083978c6d866ede622a6cf7c568099f01755047a53e64f515478d42e1ee2a98806451bf900b9183b3b8d173947dfe71920ef45f6652542e77bad6e76580c4a50576db2c5524dec6a303c784a074cafd9d70d955a9eeadcf7e9bd0cbfd4c688879c69dffe615a77f13814d30eab20c6", 0xa4}, {&(0x7f00000005c0)="4afd0b1226e463765f051be76a199a60a43421f09130860acf94e411d0a1da5fdad8a2edb7dd88b5c890cca3ab36800bf77ea96c07a70ba19b3d9d29f45ae504bec056d1e9b067de4c29296fe308a3469744c0de295d3295a9f76dd3c1c1c10ef72a8c5486178f63cacb0f5a9c78edfd64a8c05a8eb76a93f4", 0x79}, {&(0x7f0000000640)="656253b432cc368e39fa5627cf618ced340d475d99cbfccadf82d02f57d641161da43d6baad9f9703b82af402daf306e31f7890d61e1bbc6f71fd4265f1014708e4b01d7d8c623925027816299840dbc8deba0de9bf051e9749e18a03adc8153b4587a399ef8b4e49f934a6f0dc5c4e75bc78d71d3528a9bd51941f5fbf7acdc888cf17f3fd66600780d6dc8af4ce18280e06a9beec912ba10", 0x99}, {&(0x7f0000000700)="e0ce7fb512bb8ede20ab8485b1b5f04d2a79764aca04ba28858696c1c2f9dc61eb2a106c4e869aef45577a65914a602843fa761270af5c1d9cf5df4b4bc8e8d37842ffc39e73cfd067e56ea007ceb9ef11322e5b39a8b2f83751b3", 0x5b}], 0x6, &(0x7f0000000800)=ANY=[@ANYBLOB="a0000000000000000600000001000000b581cc17daf97329c88f79cee46e4905ba176a39c7f96c1bc8271fd6c779e7dc5d8268a516d26fee26c267ad359c50263262426efb80d7ea81173737a8d1cdffbd9e03b32674a5f6ba6b80a655c181a495f11918f48b58a2fe2d35c48c10f44a6fa1b6b0897a088410ffdff3490cc84b7169e4827316be8d4a8d796c16dc411b67f5b7a5c6d7ccde81246a956dcf0000"], 0xa0, 0x48050}, {&(0x7f00000008c0)={0x27, 0x1, 0x2, 0x7, 0x200, 0x7, "5117b49300921cf05fadd5d44ba937cf40150e228caf3678c7ecc1516058cd85bd90762496e6f3eb5d72ad4b49d8481bab088d69300c198f9098ff3ff9e1c7", 0x7}, 0x60, &(0x7f0000000180)=[{&(0x7f0000000940)="fd81e7854604fdb96039eb02d70f58a2df30709b1a69210b73fa15fd6ff8874f3d04798ffd22f0a357bf6625af3c5a934e1783f4fd562c0a24e7f3235065250c2b7098a79a0274e1289b358b0018ce35ff8571d5149b", 0x56}], 0x1, &(0x7f0000000d00)=ANY=[@ANYBLOB="38944c7db400000000000000ff010000000000001906e12f36c90800e6ef75022e434b4477b2b5aed48f5c6c878743b8592b87fa0ffacda71c464b72f0"], 0x38, 0x4040000}, {&(0x7f00000009c0)={0x27, 0x1, 0x0, 0x7, 0x4, 0x1f, "f33db30f91aa66993f7c2e4241e96b491268432bd91d19a42567521db8c679eecbcf42551457cd078e61631537f1d5598901ac3a4f069dfb121360f8adfc79", 0x35}, 0x60, &(0x7f00000003c0)=[{&(0x7f0000000a40)="ad15b592cb4581e629b86f2c92182732cf14eed3ec4fd9e3d3b056714c3ffb2831595275eaec4059b495907b92bbd018b1f24f43d31825d7f2d1fde68e172790cd0b1ddd6261070695272bb266b3d7e02b740375ef172800d41486bf0297aa684d66f98bf8fd8ffe3fba83e578147e72226c455145e3b9bc2b1c7e0ef55aabbf5c1421eb736aa96e8e64d31ab25548311dd00f3356081246317579ea46091115a4298d2b78582f7efca08aa827d5a52ed9fc78168beb4ec2007ff321adf3b3cab2d00f83602e34f5ec3d497c5a03144b1bb293edcf8c76e5b6284585474112d149ec3e1ffb39", 0xe6}], 0x1, &(0x7f0000000b40)={0x100, 0xad, 0xf2a9, "821e02e0c83163b16e97869d471f708e4f7ba51b58be9b7add171d3b72fe6acae7dc6490aa317ea9ccbb336230df339925ad2e7de726b2614e1db5e090cb3cd7ad92b90d6316392232f5af97e53aa145c57121ca1a189297a491c0da25ad6efa60470076ee3e1f6ffd64383d9e5a7271ffad47d8123f1f3b83ad405cbe9b6b286e2a18a9dc8f5872297be11af4948e4a5c48ba4d0d2266b5c0d16f996fb53a8bee9e6be590de3e9a496c8183f61b5fc6a1bae133ea5b12e23e9d16bdf8c22bfdc905939812e50f2ebe4a7abe2793a82840a3c72799f04a04abb1192e55546a670f632cb5c96c624ab1e8da781f1be7df"}, 0x100}], 0x3, 0x40000) clone(0x20000, &(0x7f0000000040), &(0x7f00000000c0), &(0x7f00000002c0), &(0x7f0000000100)) getpeername$llc(r0, &(0x7f0000000000), &(0x7f0000000040)=0x10) r2 = dup2(r0, r0) ioctl$SNDRV_SEQ_IOCTL_SUBSCRIBE_PORT(r2, 0x40505330, &(0x7f0000000100)={{0x40, 0x5}, {0x6, 0x80}, 0x0, 0x1, 0xcf6e}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:22 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:22 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:23 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, 0x0, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 547.481980] FAULT_FLAG_ALLOW_RETRY missing 30 [ 547.486752] CPU: 1 PID: 32282 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 547.494368] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 547.503713] ffff8801b89bf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 547.511749] ffff8801b93aa000 ffff8801b89bfa20 0000000000000000 ffff8801b89bfa48 [ 547.519786] ffffffff81cb75eb 0000000000000dca ffff8801ce0e2108 ffff8801b93aa10c [ 547.527823] Call Trace: [ 547.530400] [] dump_stack+0xc1/0x128 [ 547.535758] [] handle_userfault.cold.18+0x3e/0x51 [ 547.542241] [] ? debug_check_no_locks_freed+0x210/0x210 [ 547.549247] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 547.555647] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 547.562824] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 547.569657] [] ? handle_mm_fault+0x1267/0x28e0 [ 547.575878] [] ? handle_mm_fault+0x220f/0x28e0 [ 547.582103] [] handle_mm_fault+0x221d/0x28e0 [ 547.588150] [] ? vm_insert_mixed+0x200/0x200 [ 547.594203] [] __do_page_fault+0x5af/0xd50 [ 547.600082] [] ? mm_fault_error+0x2c0/0x2c0 [ 547.606045] [] ? exit_robust_list+0x220/0x220 [ 547.612183] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 547.618844] [] do_page_fault+0x27/0x30 [ 547.624370] [] page_fault+0x28/0x30 [ 547.629639] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 547.636470] [] ? SyS_pselect6+0x1be/0x540 [ 547.642252] [] ? SyS_select+0x1e0/0x1e0 [ 547.647865] [] ? SyS_futex+0x206/0x310 [ 547.653390] [] ? do_futex+0x1770/0x1770 [ 547.658997] [] ? security_file_ioctl+0x8f/0xc0 [ 547.665219] [] ? do_syscall_64+0x48/0x490 [ 547.671002] [] ? SyS_select+0x1e0/0x1e0 [ 547.676611] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:54:23 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 547.682311] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:23 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) setsockopt(r0, 0xaf, 0xf61, &(0x7f00000000c0)="541a21405e30d19f3c72", 0xa) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f00000004c0)={0x3, 0x8}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) r3 = gettid() sched_setparam(r3, &(0x7f0000000240)=0x9) ioctl$DRM_IOCTL_PRIME_HANDLE_TO_FD(r0, 0xc00c642d, &(0x7f0000000340)={0x0, 0x80000, r0}) ioctl$DRM_IOCTL_GEM_FLINK(r0, 0xc008640a, &(0x7f0000000480)={r4}) setsockopt$ARPT_SO_SET_ADD_COUNTERS(r1, 0x0, 0x61, &(0x7f00000003c0)={'filter\x00', 0x4}, 0x68) ioctl$DRM_IOCTL_GEM_FLINK(r0, 0xc008640a, &(0x7f0000000280)={0x0, 0x0}) ioctl$DRM_IOCTL_GEM_FLINK(r0, 0xc008640a, &(0x7f00000002c0)={r5, r6}) 2018/05/02 09:54:24 executing program 1: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) ioctl$sock_SIOCGIFINDEX(0xffffffffffffffff, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(0xffffffffffffffff, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(0xffffffffffffffff, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(0xffffffffffffffff, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:24 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) r1 = openat$selinux_commit_pending_bools(0xffffffffffffff9c, &(0x7f00000000c0)='/selinux/commit_pending_bools\x00', 0x1, 0x0) bind$pptp(r1, &(0x7f0000000100)={0x18, 0x2, {0x1, @rand_addr=0xdaf}}, 0x1e) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) signalfd(r1, &(0x7f0000000000)={0x9e4e}, 0x8) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000015000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:24 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x95bb}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) setsockopt$inet6_MRT6_ADD_MFC_PROXY(r0, 0x29, 0xd2, &(0x7f0000000240)={{0xa, 0x4e22, 0xfffffffffffffffc, @mcast1={0xff, 0x1, [], 0x1}, 0xfffffffffffffffb}, {0xa, 0x4e24, 0x0, @loopback={0x0, 0x1}, 0x3ff}, 0x4, [0x0, 0x80000001, 0x4, 0x3, 0x0, 0x6, 0x1000, 0x6c]}, 0x5c) 2018/05/02 09:54:24 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) syz_open_dev$ndb(&(0x7f00000000c0)='/dev/nbd#\x00', 0x0, 0x100) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:24 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) sendto$ipx(r0, &(0x7f0000000240)="c4ec7a54a3531568e54dd86a2c7002729153a564efec14ead323bc26599656d6a0af8a28901942531ba6db096ff8a9dc1a5ea0853b787739981e95df6df49052a17fc5ef96f00dd99e6e8a5df486efa75bdc71dbbb988654131806359d17235aac4f36d66273fb031b33b1b95083a0b73e92f6f1c8b7438a0e868cac7e5acca07073e6070417d05b0a09b7817f02efe621e7763b3bfa6d2645", 0x99, 0x8000, &(0x7f00000000c0)={0x4, 0x7, 0x4, "ae058e4d2f54", 0xfffffffffffff001}, 0x10) 2018/05/02 09:54:24 executing program 0: r0 = openat$selinux_commit_pending_bools(0xffffffffffffff9c, &(0x7f00000000c0)='/selinux/commit_pending_bools\x00', 0x1, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0x80000005, &(0x7f00000001c0)={0x8}, 0xfffffffffffffe93) accept4$bt_l2cap(r0, 0x0, &(0x7f0000000240), 0x80000) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:24 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) getsockopt$bt_BT_DEFER_SETUP(r1, 0x112, 0x7, &(0x7f00000000c0)=0x100, &(0x7f0000000240)=0x4) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x6, 0x6, @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x2}}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$sock_inet_SIOCSIFNETMASK(r1, 0x891c, &(0x7f0000000280)={'bond_slave_1\x00', {0x2, 0x4e23, @multicast1=0xe0000001}}) 2018/05/02 09:54:24 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) ioctl$fiemap(r2, 0xc020660b, &(0x7f00000003c0)={0x5, 0x7, 0x7, 0x2, 0xa, [{0xba, 0x5, 0x2, 0x0, 0x0, 0x200}, {0x3818, 0x4, 0x8, 0x0, 0x0, 0x2000}, {0x5, 0x81, 0x9, 0x0, 0x0, 0x408}, {0x0, 0x3f, 0x0, 0x0, 0x0, 0x175ea5e439703805}, {0x280000000000, 0xfe, 0xbe, 0x0, 0x0, 0x1000}, {0x0, 0x0, 0x1f, 0x0, 0x0, 0x1000}, {0x9, 0x9ab8, 0x4, 0x0, 0x0, 0xa0a}, {0x6, 0x8, 0x100000001, 0x0, 0x0, 0x1}, {0x94c3, 0x40, 0x9b56, 0x0, 0x0, 0x481}, {0xe01, 0x3, 0x2d9, 0x0, 0x0, 0x1a03}]}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) r4 = syz_genetlink_get_family_id$ipvs(&(0x7f0000000680)='IPVS\x00') sendmsg$IPVS_CMD_GET_DEST(r0, &(0x7f00000002c0)={&(0x7f00000000c0)={0x10, 0x0, 0x0, 0x4}, 0xc, &(0x7f0000000280)={&(0x7f0000000140)=ANY=[@ANYBLOB="83996bd59eca8fa0b488e30235e33a", @ANYRES16=r4, @ANYBLOB="00022abd7000fedbdf250800000008000500ee00000008000600000000000800050007000000"], 0x2c}, 0x1, 0x0, 0x0, 0x4000000}, 0x20000000) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:24 executing program 1: openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:24 executing program 1: openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:24 executing program 1: openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:24 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}], 0x6, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:25 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:25 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) ioctl$UFFDIO_API(0xffffffffffffffff, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(0xffffffffffffffff, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) r0 = openat$selinux_status(0xffffffffffffff9c, &(0x7f0000000340)='/selinux/status\x00', 0x0, 0x0) ioctl$SNDRV_SEQ_IOCTL_REMOVE_EVENTS(r0, 0x4040534e, &(0x7f0000000040)={0x20, @time, 0x5, {0x8, 0x7}, 0x0, 0x0, 0x6}) getsockopt$netrom_NETROM_N2(r0, 0x103, 0x3, &(0x7f0000000140)=0x200, &(0x7f0000000180)=0x4) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(0xffffffffffffffff, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(0xffffffffffffffff, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x3000)=nil, 0x3000}, 0x5}) ioctl$sock_inet_SIOCDELRT(r0, 0x890c, &(0x7f00000000c0)={0x0, {0x2, 0x4e24, @loopback=0x7f000001}, {0x2, 0x4e22, @multicast1=0xe0000001}, {0x2, 0x4e22, @broadcast=0xffffffff}, 0x0, 0x7, 0x5, 0x5, 0xffffffff, &(0x7f0000000000)='veth0_to_team\x00', 0x1, 0x10000, 0xff}) 2018/05/02 09:54:25 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) prctl$setmm(0x23, 0x7, &(0x7f0000012000/0x2000)=nil) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:25 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:25 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:25 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:26 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) getsockopt$inet_sctp_SCTP_PEER_ADDR_PARAMS(r1, 0x84, 0x9, &(0x7f0000000240)={0x0, @in6={{0xa, 0x4e20, 0x5, @dev={0xfe, 0x80, [], 0x8}, 0x100}}, 0x7, 0x1ff, 0xb75c, 0x218, 0x88}, &(0x7f00000000c0)=0x98) setsockopt$inet_sctp_SCTP_RESET_ASSOC(r1, 0x84, 0x78, &(0x7f0000000340)=r3, 0x4) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:26 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x2, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$TIOCSBRK(r0, 0x5427) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) setsockopt$sock_void(r1, 0x1, 0x24, 0x0, 0x0) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:26 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080006, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:26 executing program 0: r0 = openat$zero(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/zero\x00', 0x2080, 0x0) memfd_create(&(0x7f00000002c0)='vmnet1*&wlan0\x00', 0x1) setsockopt$IPT_SO_SET_ADD_COUNTERS(r0, 0x0, 0x41, &(0x7f0000000480)=ANY=[], 0x0) epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)={0xffffffffffffffff, 0xffffffffffffffff}) fchmod(r3, 0x4) openat$rtc(0xffffffffffffff9c, &(0x7f0000000440)='/dev/rtc0\x00', 0x300, 0x0) setsockopt$inet6_MRT6_ADD_MFC_PROXY(r0, 0x29, 0xd2, &(0x7f0000000240)={{0xa, 0x4, 0x7, @loopback={0x0, 0x1}, 0x6}, {0xa, 0x4e21, 0x0, @mcast2={0xff, 0x2, [], 0x1}, 0x8000}, 0x1, [0x247f, 0x80, 0x80000001, 0x2, 0x2, 0xc4f, 0x6a, 0x8]}, 0x5c) 2018/05/02 09:54:26 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:26 executing program 2: r0 = openat$selinux_checkreqprot(0xffffffffffffff9c, &(0x7f00000000c0)='/selinux/checkreqprot\x00', 0x101000, 0x0) execveat(r0, &(0x7f0000000240)='./file0\x00', &(0x7f00000004c0)=[&(0x7f0000000280)='/dev/snapshot\x00', &(0x7f00000002c0)="272873656c6628f723766d6e65743073656c696e757800", &(0x7f0000000340)='\x00', &(0x7f00000003c0)='sit0\x00', &(0x7f0000000400)=',md5sum\x00', &(0x7f0000000440)='nodeveth0:cpuset+-wlan1^)nodev\x00', &(0x7f0000000480)='/dev/snapshot\x00'], &(0x7f00000006c0)=[&(0x7f0000000500)='vboxnet0:procvmnet1)securitykeyring)-eth0/eth0securityem1:%trusted\x00', &(0x7f0000000580)='%\x00', &(0x7f00000005c0)="2825945c9a73656c696e757873656c6600", &(0x7f0000000600)='.\x00', &(0x7f0000000640)='\x00', &(0x7f0000000680)='em1\x00'], 0x100) r1 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r1, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$SNDRV_TIMER_IOCTL_PAUSE(r0, 0x54a3) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) r3 = accept4$ipx(r1, &(0x7f0000000300), &(0x7f0000000700)=0x10, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) mq_unlink(&(0x7f0000000880)='\'\x00') setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$EVIOCGEFFECTS(r3, 0x80044584, &(0x7f0000000780)=""/242) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x1, 0x0, &(0x7f0000000740)) 2018/05/02 09:54:26 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) ioctl$TIOCGSOFTCAR(r0, 0x5419, &(0x7f00000000c0)) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_inet6_tcp_SIOCOUTQ(r0, 0x5411, &(0x7f0000000240)) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 550.569966] FAULT_FLAG_ALLOW_RETRY missing 30 [ 550.574676] CPU: 1 PID: 32370 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 550.582296] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 550.591650] ffff8801b7bbf850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 550.599710] ffff8801b93aa300 ffff8801b7bbfa20 0000000000000000 ffff8801b7bbfa48 [ 550.607744] ffffffff81cb75eb 0000000000000dca ffff8801c6c5b908 ffff8801b93aa40c [ 550.615773] Call Trace: [ 550.618353] [] dump_stack+0xc1/0x128 [ 550.623712] [] handle_userfault.cold.18+0x3e/0x51 [ 550.630196] [] ? debug_check_no_locks_freed+0x210/0x210 [ 550.637199] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 550.643599] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 550.650781] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 550.657612] [] ? handle_mm_fault+0x1267/0x28e0 [ 550.663836] [] ? handle_mm_fault+0x220f/0x28e0 [ 550.670058] [] handle_mm_fault+0x221d/0x28e0 [ 550.676106] [] ? vm_insert_mixed+0x200/0x200 [ 550.682159] [] __do_page_fault+0x5af/0xd50 [ 550.688036] [] ? mm_fault_error+0x2c0/0x2c0 [ 550.693999] [] ? exit_robust_list+0x220/0x220 [ 550.700134] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 550.706788] [] do_page_fault+0x27/0x30 [ 550.712313] [] page_fault+0x28/0x30 [ 550.717578] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 550.724404] [] ? SyS_pselect6+0x1be/0x540 [ 550.730190] [] ? SyS_select+0x1e0/0x1e0 [ 550.735823] [] ? SyS_futex+0x206/0x310 [ 550.741350] [] ? do_futex+0x1770/0x1770 [ 550.746963] [] ? security_file_ioctl+0x8f/0xc0 [ 550.753183] [] ? do_syscall_64+0x48/0x490 [ 550.758971] [] ? SyS_select+0x1e0/0x1e0 [ 550.764584] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:54:26 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) write$selinux_validatetrans(r0, &(0x7f0000000240)={'system_u:object_r:dhcpd_var_run_t:s0', 0x20, 'system_u:object_r:usbmon_device_t:s0', 0x20, 0x32, 0x37, 0x20, 'unconfined\x00'}, 0x58) setxattr(&(0x7f00000000c0)='./file0\x00', &(0x7f00000002c0)=@known='security.evm\x00', &(0x7f0000000340)='system_u:object_r:usbmon_device_t:s0', 0x24, 0x1) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 550.770281] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:26 executing program 6: r0 = openat$selinux_avc_hash_stats(0xffffffffffffff9c, &(0x7f00000004c0)='/selinux/avc/hash_stats\x00', 0x0, 0x0) getsockopt$inet_sctp6_SCTP_ENABLE_STREAM_RESET(0xffffffffffffffff, 0x84, 0x76, &(0x7f0000000280)={0x0, 0xdd}, &(0x7f00000002c0)=0x8) setsockopt$inet_sctp_SCTP_DELAYED_SACK(r0, 0x84, 0x10, &(0x7f00000003c0)=@sack_info={r1, 0xec2, 0x6}, 0xc) r2 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) r3 = openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000400)='/dev/pktcdvd/control\x00', 0x800, 0x0) epoll_pwait(r2, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) ioctl$EVIOCGUNIQ(r3, 0x80404508, &(0x7f0000000600)=""/128) ioctl$EVIOCGABS3F(r2, 0x8018457f, &(0x7f00000000c0)=""/42) r4 = socket(0x8000008, 0x4000000000080000, 0x0) ioctl$sock_FIOGETOWN(r3, 0x8903, &(0x7f0000000340)=0x0) perf_event_open(&(0x7f0000000500)={0x3, 0x70, 0x1, 0xbf, 0x6, 0x9, 0x0, 0x9, 0x0, 0x0, 0x3, 0x4, 0x7, 0x8, 0x400, 0x1, 0x411a, 0x80, 0x6, 0x400, 0x1, 0x80000000, 0x6, 0x8, 0x4, 0x8, 0x2, 0x100000000, 0x7, 0x7, 0x8, 0xffffffffffffff7f, 0x7, 0x0, 0xffffffffffffff78, 0x5af6, 0x8d, 0xff, 0x0, 0xa0f0, 0x2, @perf_bp={&(0x7f0000000240), 0xb}, 0x206, 0x5, 0x9, 0x7, 0x0, 0x5, 0x6}, r5, 0x9, r3, 0x1) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r4, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r4, &(0x7f0000000200)={0x11, 0x0, r6, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r4, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000440)={0xfffffffffffffffe, 0x2f, 0x8000000006}) sendmmsg$inet_sctp(r4, &(0x7f00000005c0)=[{&(0x7f0000000580)=@in6={0xa, 0x0, 0x2}, 0x14, &(0x7f0000d1e000), 0x0, &(0x7f0000000480)=[@sndinfo={0x20, 0x84, 0x2, {0x1, 0x8000, 0x5, 0x9f93, r1}}], 0x20}], 0x1, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:26 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:26 executing program 6: r0 = socket(0x9, 0x1, 0x1a) accept4$inet(r0, &(0x7f00000000c0)={0x0, 0x0, @multicast2}, &(0x7f0000000540)=0x10, 0x0) r1 = openat$snapshot(0xffffffffffffff9c, &(0x7f00000006c0)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r1, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$inet_sctp_SCTP_PRIMARY_ADDR(r1, 0x84, 0x6, &(0x7f0000000580)={0x0, @in6={{0xa, 0x4e21, 0x4, @remote={0xfe, 0x80, [], 0xbb}, 0x1000000000000}}}, &(0x7f0000000640)=0x84) getsockopt$inet_IP_XFRM_POLICY(r1, 0x0, 0x11, &(0x7f0000000700)={{{@in=@rand_addr, @in6=@loopback, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in=@multicast2}, 0x0, @in=@remote}}, &(0x7f0000000380)=0xe8) bind$packet(r2, &(0x7f0000000800)={0x11, 0x1b, r4, 0x1, 0x0, 0x6, @dev={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0x1c}}, 0x14) setsockopt$inet_sctp6_SCTP_AUTH_KEY(r0, 0x84, 0x17, &(0x7f0000000680)={r3, 0x6, 0x26, "1f7e1dbf8d620de54b58d6b96ae7b04be4e2a0445f1c668dc165dfd610b53c5fab86a28207c8"}, 0x2e) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x1c, r5, 0x1, 0xfffffffffffffffb, 0x6}, 0x2fdaace35df97122) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r1, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f0000000500)=@in6={0xa, 0x4e22, 0x0, @mcast1={0xff, 0x1, [], 0x1}, 0x7fff}, 0xffffffffffffffeb, &(0x7f00000002c0)=[{&(0x7f00000003c0)="836d0d6bdbab1bf9ed2c279319c3720bbdfa927776c87caf8d13d0986a8f016f36f4de456a13c5d25e1ada8ef2b6cf9d0df4f389054c312fd4e7662a9ac87f69f3b539591d78abb4f36f02609e5939ab99ebfbe926b7e482556a31bd4c420f0a86707fd84bec37094d361144d0f67f879c6e5fd7b9c4ec0ae863eb800829cc367864dbbbc4049b1ea6e21e7c6a88fd618dcb8ad6b5b5378e8b31d9b7c9391f5f66f229c8c224321dc7988e893b4c72fd63ef580f6af13ed2dc552df05d30113ad6b632505855d2811f12811d0e6b7f06bd8a9b621adb1322dbf54ce10d40b8aa5ef278f6f79530ea05b5420f2818", 0xee}, {&(0x7f0000000240)="127a884de9056d876a910f0e5e5ed8aa844e13e8b579b9366943e724fa02d5670f65d9c64522f0e5ac7747afe56b5772185635fa4df4005153e53d05e56793b927571026916cd535464a72a773f84a0e5e7075", 0x53}], 0x2, &(0x7f00000004c0)=[@dstaddrv6={0x0, 0x84, 0x8}]}], 0x1, 0x8405) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:26 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 3: socketpair$inet_dccp(0x2, 0x6, 0x0, &(0x7f0000000140)={0xffffffffffffffff}) mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, r0, 0x0) r1 = userfaultfd(0x0) ioctl$UFFDIO_API(r1, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) acct(&(0x7f00000000c0)='./file0\x00') ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) r2 = openat$pfkey(0xffffffffffffff9c, &(0x7f0000000000)='/proc/self/net/pfkey\x00', 0x41, 0x0) setsockopt$inet6_tcp_TCP_FASTOPEN_KEY(r2, 0x6, 0x21, &(0x7f0000000040)="94985f0d81363e3b3022bf5e907d1d3a", 0x10) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r1, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r1, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:28 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$inet_dccp_int(r0, 0x21, 0x1b, &(0x7f0000000340), &(0x7f0000000240)=0x4) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) getsockopt$inet_sctp6_SCTP_MAXSEG(r0, 0x84, 0xd, &(0x7f0000000300)=@assoc_id=0x0, &(0x7f0000000a00)=0x4) setsockopt$inet_sctp6_SCTP_RESET_STREAMS(r0, 0x84, 0x77, &(0x7f0000000a40)={r2, 0x20, 0x8, [0x3f, 0xd74, 0x10001, 0xfff, 0x3, 0x2, 0x3e20, 0x374]}, 0x18) syz_mount_image$btrfs(&(0x7f00000004c0)='btrfs\x00', &(0x7f0000000500)='./file0\x00', 0xff, 0x6, &(0x7f00000008c0)=[{&(0x7f0000000540)="fdd183c7c65d6c54130709f1ae1d813747bb", 0x12, 0x1}, {&(0x7f0000000580)="267820265e63845e7c0fdbe0fd86c5595c880bd2f412cad148a518fe752ea36923126f1c2edcac75c16dfc3f6b0f5ea760e2c7d285c70831157c7e2e100ee64284730082f9592d056d00e098c6c67a67806ecae331e7c76c08f9e3e385778b72df79ade1807a80ef404df2a5520fa1f097683910c5aca0bc7965bad393eea9a0f004bf3d331df8a03cf24f2521eb10da8d1f2516675de676de99b098b37a3b2ac48d853c9c09073db7df0caeedb199f451829f30d7bc10a69a5e1a5aca657988112999f9f85238d5030de5f5cf58d7854d1815", 0xd3, 0x17}, {&(0x7f0000000680)="2a82f1a3f8a2462d7ff91a12428ab70f8df6c3e9558040fd1725e290e2ab0046e166c6e35e0d63e85b24cbf179d4b7c7c1a90df3bdfeca69461ea804", 0x3c, 0x3c054e98}, {&(0x7f00000006c0)="670c10864788c36b6fca39411331a1a88d33a183b94ec9514b94ea00efcf1d386a702494f78589a3b48f5029b44131aae241c59ac6f26892547d9e2b18725eeb2f53109ba0", 0x45, 0x8000}, {&(0x7f0000000740)="cbed71ba52eda4d4d2085fa44fc7f0477034dd72e5c0e630f804a833b5878e147749e8eb34c178ffa82408d09cb88568f7d964e18c19e94be65bcfa153062d121ba1ae47033893df00509c56988a4ce1802307b4b691a4f2dc404c053e0139071816cc68eb6baa3ac88b4697467a6b381854889e35f8c9339b347a54f261c5833bfd8c9bd7c7c4bb4b79bbf75ae5746c57bf669972", 0x95, 0x7}, {&(0x7f0000000800)="f91dec1fe5787792b2652091b606fecc99b96e7d1dddb5dc005a4c5c574bbbe8be22319bb24134a6e112dc345c6a47defce82056ba690fa190a11ed9cfcc4b9ad5125b486d43e225415b1f41162ecd44c8ace13e6f8867a9cb08a0291e246e786d357a25f172cee7f701482266722f4766e8a813b4ffee00e0d781ca514994765ce4bad64eeed116a4446a88ee620d802662c6957556fbbde86d2e1ba505", 0x9e, 0x6}], 0x208c80, &(0x7f0000000980)={[{@subvol={'subvol', 0x3d, [0x0]}, 0x2c}, {@fragment_metadata='fragment=metadata', 0x2c}]}) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x5) openat$pktcdvd(0xffffffffffffff9c, &(0x7f0000000b00)='/dev/pktcdvd/control\x00', 0x149081, 0x0) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000000440)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000000480)=[{&(0x7f0000000280)="c271be81719f13d2fba3334a685dcdc417cd993b8ce77cbd9251abe484afe545b76fffdbe1e038002d105362fedad93fc2545788706401d54af46193ecdb7c86d56b4b63ebba50cdbb81899f47fb30023acb8a2c6894a9685f460bc8"}, {&(0x7f00000003c0)="6cf4d3e4887459c3b955955fa166838375b35742f6485f9fb97d9ef3ce8a126333f2731b1f30a56ae0e7df3db39c4457c2d2b1417653709439957568bf7d02511ce20454a3a2b35dc2259b01495993f8909a45"}], 0x100000000000026c, &(0x7f0000dda000), 0x0, 0x10000040}], 0x4924924924924c2, 0x8000) socketpair$unix(0x1, 0x808002, 0x0, &(0x7f00000009c0)) 2018/05/02 09:54:28 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x2, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0xfffffffffffffffd}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x60, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$inet_dccp(0x2, 0x6, 0x0, &(0x7f00000000c0)) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f00000000c0)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) ioctl$TCFLSH(r0, 0x540b, 0x5) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) dup(r0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) bind$netrom(r1, &(0x7f0000000240)=@full={{0x3, {"4aa1eb89878271"}, 0x1}, [{"abe16723c7db6a"}, {"294527f9d05a16"}, {"82302389b6e1c4"}, {"265ab98aa951d5"}, {"ddedf601fafc2b"}, {"3d31bd963033a7"}, {"c402a4f52e1856"}, {"07b3b4e1663d3f"}]}, 0x48) setsockopt$SO_VM_SOCKETS_BUFFER_MIN_SIZE(r1, 0x28, 0x1, &(0x7f00000000c0)=0xc0000000, 0x8) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0xfffffffffffffffc, r2, 0x1, 0xfffffffffffffffd, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0xfffffdd8) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$SIOCGIFHWADDR(r0, 0x8927, &(0x7f00000000c0)) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockopt$sock_int(r1, 0x1, 0xc, &(0x7f0000000180), &(0x7f0000000240)=0x4) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f00000000c0)=0x110, 0xfffffffffffffcfd) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:28 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 553.126388] FAULT_FLAG_ALLOW_RETRY missing 30 [ 553.131092] CPU: 1 PID: 32429 Comm: syz-executor3 Not tainted 4.9.97-g1321d42 #13 [ 553.138711] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 553.148059] ffff880193ab7850 ffffffff81eb0b69 0000000000000002 0000000000000000 [ 553.156101] ffff8801b935a900 ffff880193ab7a20 0000000000000000 ffff880193ab7a48 [ 553.164141] ffffffff81cb75eb 0000000000000dca ffff8801cdefe908 ffff8801b935aa0c [ 553.172206] Call Trace: [ 553.174788] [] dump_stack+0xc1/0x128 [ 553.180150] [] handle_userfault.cold.18+0x3e/0x51 [ 553.186639] [] ? debug_check_no_locks_freed+0x210/0x210 [ 553.193642] [] ? userfaultfd_ioctl+0x2540/0x2540 [ 553.200037] [] ? refill_pi_state_cache.part.8+0x200/0x200 [ 553.207213] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 553.214043] [] ? handle_mm_fault+0x1267/0x28e0 [ 553.220265] [] ? handle_mm_fault+0x220f/0x28e0 [ 553.226487] [] handle_mm_fault+0x221d/0x28e0 [ 553.232531] [] ? vm_insert_mixed+0x200/0x200 [ 553.238581] [] __do_page_fault+0x5af/0xd50 [ 553.244459] [] ? mm_fault_error+0x2c0/0x2c0 [ 553.250424] [] ? exit_robust_list+0x220/0x220 [ 553.256563] [] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 553.263227] [] do_page_fault+0x27/0x30 [ 553.268762] [] page_fault+0x28/0x30 [ 553.274040] [] ? copy_user_generic_unrolled+0x86/0xc0 [ 553.280877] [] ? SyS_pselect6+0x1be/0x540 [ 553.286671] [] ? SyS_select+0x1e0/0x1e0 [ 553.292289] [] ? SyS_futex+0x206/0x310 [ 553.297821] [] ? do_futex+0x1770/0x1770 [ 553.303436] [] ? security_file_ioctl+0x8f/0xc0 [ 553.309664] [] ? do_syscall_64+0x48/0x490 [ 553.315457] [] ? SyS_select+0x1e0/0x1e0 [ 553.321072] [] do_syscall_64+0x1a6/0x490 2018/05/02 09:54:29 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 553.326778] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb 2018/05/02 09:54:29 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) getsockopt$inet_IP_IPSEC_POLICY(r0, 0x0, 0x10, &(0x7f00000003c0)={{{@in=@dev, @in=@rand_addr, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0}}, {{@in6}, 0x0, @in6=@loopback}}, &(0x7f00000002c0)=0xe8) setsockopt$inet6_IPV6_PKTINFO(r0, 0x29, 0x32, &(0x7f00000004c0)={@local={0xfe, 0x80, [], 0xaa}, r1}, 0x14) r2 = socket(0x200000000000011, 0x4000000000080002, 0x0) getsockname$unix(r0, &(0x7f0000000240)=@abs, &(0x7f00000000c0)=0x6e) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x5, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x200}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ftruncate(r0, 0x1) ioctl$sock_SIOCGIFINDEX(r2, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r2, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r2, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r2, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:29 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:29 executing program 6: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) setsockopt$inet_sctp_SCTP_NODELAY(r2, 0x84, 0x3, &(0x7f00000000c0)=0x10001, 0x4) ioctl$VT_RESIZE(r0, 0x5609, &(0x7f0000000340)={0x3, 0x2f, 0x2}) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$SO_VM_SOCKETS_BUFFER_SIZE(r0, 0x28, 0x0, &(0x7f00000003c0)=0xffffffff, 0x8) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) getsockopt$inet_sctp_SCTP_MAXSEG(r0, 0x84, 0xd, &(0x7f0000000240)=@assoc_value={0x0, 0x6eb}, &(0x7f0000000280)=0x8) setsockopt$inet_sctp_SCTP_MAXSEG(r1, 0x84, 0xd, &(0x7f00000002c0)=@assoc_id=r4, 0x4) 2018/05/02 09:54:29 executing program 3: mmap(&(0x7f0000011000/0x3000)=nil, 0x3000, 0x1, 0x32, 0xffffffffffffffff, 0x0) r0 = userfaultfd(0x0) ioctl$UFFDIO_API(r0, 0xc018aa3f, &(0x7f0000002fe8)={0xaa}) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f00000001c0)={{&(0x7f0000013000/0x4000)=nil, 0x4000}, 0x1}) pselect6(0x40, &(0x7f0000011fc0), &(0x7f0000011000), &(0x7f0000003000), &(0x7f0000013000), &(0x7f0000001ff8)={&(0x7f0000012000), 0x8}) ioctl$UFFDIO_ZEROPAGE(r0, 0x8010aa02, &(0x7f0000004ff0)={&(0x7f0000011000/0x3000)=nil, 0x3000}) pipe(&(0x7f0000000000)={0xffffffffffffffff, 0xffffffffffffffff}) futimesat(r1, &(0x7f0000000040)='./file0\x00', &(0x7f0000000080)={{}, {0x0, 0x7530}}) clone(0x0, &(0x7f0000000040), &(0x7f0000000280), &(0x7f00000002c0), &(0x7f0000000340)) ioctl$UFFDIO_REGISTER(r0, 0xc020aa00, &(0x7f0000000400)={{&(0x7f0000012000/0x4000)=nil, 0x4000}, 0x1}) 2018/05/02 09:54:29 executing program 4: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}], 0x5, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000240)={0x11, 0x18, r2, 0x1, 0x100000000, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:29 executing program 0: epoll_pwait(0xffffffffffffffff, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000300)=0x110, 0x298) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) syz_genetlink_get_family_id$team(&(0x7f00000000c0)='team\x00') r2 = openat$selinux_checkreqprot(0xffffffffffffff9c, &(0x7f0000000240)='/selinux/checkreqprot\x00', 0x0, 0x0) r3 = openat$sequencer2(0xffffffffffffff9c, &(0x7f0000000280)='/dev/sequencer2\x00', 0x400000, 0x0) r4 = socket$inet_icmp(0x2, 0x2, 0x1) sendto(r4, &(0x7f0000000400)="2a5f053ed0f19b77bc4a7ee190176e6bb59ef1f584803a104752d81c289c3836c3146d111232d5205b4e90d465e48171b7911f5f59b70efe3a2c9b726ccbed4b1cfd", 0x42, 0x0, &(0x7f0000000480)=@pppol2tpin6={0x18, 0x1, {0x0, r0, 0x2, 0x4, 0x4, 0x4, {0xa, 0x4e21, 0x3, @remote={0xfe, 0x80, [], 0xbb}, 0x6}}}, 0x80) ioctl$ION_IOC_HEAP_QUERY(r2, 0xc0184908, &(0x7f00000002c0)={0x8, 0x5, 0x1, r3}) ioctl$EVIOCGUNIQ(r3, 0x80404508, &(0x7f0000000340)=""/92) read$eventfd(r3, &(0x7f00000003c0), 0x8) 2018/05/02 09:54:30 executing program 7: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) setsockopt$inet6_tcp_TCP_CONGESTION(r0, 0x6, 0xd, &(0x7f00000000c0)='illinois\x00', 0x9) ioctl$PIO_SCRNMAP(r0, 0x4b41, &(0x7f00000003c0)="d67b26015ef716fd0a9b3f7ca502aa1d87e6206e0dcfd8184bab96524b9014025dc597c107616ef95db020fba778f08df198cd7fc9eec2581bfafaaec397658afc60627400858f0cbd491dd0658ebc7865564398c2748dfc55825dd94b5daf823a9505a2d5bfee4f6f571a691f70c34c292ca7d71598ba63c5fbbecf4cb42928a94e84f91e0b50f235cc27d96a1f1cb87736ac02a265e0422bca303e90edd8949145eafeb78ddf985410b34a60b15e3d53a30afe64e08545164d7b75ba34b02c1a3778871c78645c15ade0ad19fa556ce8c2ce98217d") bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) setsockopt$netlink_NETLINK_ADD_MEMBERSHIP(r1, 0x10e, 0x1, &(0x7f0000000240)=0x1a, 0x4) 2018/05/02 09:54:30 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) ioctl$KDGKBLED(r0, 0x4b64, &(0x7f00000002c0)) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) exit_group(0x800000d7) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) setsockopt$EBT_SO_SET_ENTRIES(r0, 0x0, 0x80, &(0x7f0000000240)=@filter={'filter\x00', 0xe, 0x5, 0x7c8, [0x0, 0x200003c0, 0x20000560, 0x20000590], 0x0, &(0x7f00000000c0), &(0x7f00000003c0)=[{0x0, '\x00', 0x0, 0xffffffffffffffff, 0x1, [{{{0x9, 0x2, 0x17, 'vlan0\x00', 'veth0\x00', 'teql0\x00', 'bcsh0\x00', @empty, [0xff, 0xff, 0xff, 0x0, 0xff, 0xff], @local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, [0x0, 0xff, 0xff, 0xff, 0xff], 0x138, 0x138, 0x170, [@helper={'helper\x00', 0x28, {{0x0, 'sane-20000\x00'}}}, @ip6={'ip6\x00', 0x50, {{@dev={0xfe, 0x80, [], 0x19}, @mcast2={0xff, 0x2, [], 0x1}, [0xffffff00, 0xffffff00, 0xffffffff, 0xff000000], [0x0, 0xffffff00, 0xff], 0x0, 0x5c, 0x1, 0x8, 0x4e24, 0x4e20, 0x4e23, 0x4e22}}}]}}, @common=@dnat={'dnat\x00', 0x10, {{@local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, 0xffffffffffffffff}}}}]}, {0x0, '\x00', 0x1}, {0x0, '\x00', 0x1, 0xfffffffffffffffc, 0x2, [{{{0x9, 0x42, 0x8915, 'erspan0\x00', 'lo\x00', 'veth1_to_team\x00', 'bpq0\x00', @remote={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xbb}, [0xff, 0x0, 0x0, 0x123f092f3f3923dd, 0xff, 0xff], @local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, [0x0, 0xff, 0x0, 0xff, 0xff, 0xff], 0xf0, 0x1b8, 0x208, [@quota={'quota\x00', 0x18, {{0x0, 0x0, 0x1, 0x9}}}, @devgroup={'devgroup\x00', 0x18, {{0x6, 0x926f, 0x7, 0x1f, 0x4}}}]}, [@common=@IDLETIMER={'IDLETIMER\x00', 0x28, {{0x7, 'syz1\x00', 0x4}}}, @common=@NFLOG={'NFLOG\x00', 0x50, {{0x7f, 0x2, 0x80000001, 0x0, 0x0, "2bacf8deb6049a4eb4bd80f830ad78ade5f82d7b85cd62d5500b33cade68f869d8bfc538b5166730bf9d2081d50f09e528d67dffd8dc92764e0fe9327bd770b2"}}}]}, @common=@log={'log\x00', 0x28, {{0x800, "c7608940ef2670dbc4e7b92b3324afd8a1fd4c3950d946a6b42d27f24114", 0x4}}}}, {{{0x19, 0x21, 0x0, 'dummy0\x00', 'ip6gretap0\x00', 'bpq0\x00', 'bond_slave_1\x00', @random="7c4ae9d7b1e4", [0x0, 0xff, 0xff, 0xff, 0x0, 0xff], @local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, [0xff, 0x0, 0xff, 0x0, 0x0, 0xa8705c58e7c5490a], 0x70, 0xb8, 0x100}, [@common=@ERROR={'ERROR\x00', 0x20, {"9a4e991ae48970901f6d7f3c031d197dc36e0dc3dba3e7d93aa90ee6870b"}}]}, @common=@RATEEST={'RATEEST\x00', 0x20, {{'syz1\x00', 0x1, 0x6f, 0x3}}}}]}, {0x0, '\x00', 0x3, 0x0, 0x2, [{{{0x5, 0x1, 0xc, 'bridge_slave_0\x00', 'teql0\x00', 'syzkaller1\x00', 'bond_slave_1\x00', @local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, [0xff, 0xff, 0xff], @empty, [0x0, 0x0, 0x0, 0x0, 0xff, 0xff], 0x70, 0xd8, 0x108}, [@common=@mark={'mark\x00', 0x10, {{0xfffffff0, 0xfffffffffffffffc}}}, @common=@redirect={'redirect\x00', 0x8, {{0xfffffffffffffffc}}}]}, @common=@CLASSIFY={'CLASSIFY\x00', 0x8}}, {{{0x13, 0x20, 0x201, 'bpq0\x00', 'team0\x00', 'veth0_to_bridge\x00', 'bridge0\x00', @link_local={0x1, 0x80, 0xc2, 0x0, 0x0, 0x3}, [0x0, 0x0, 0xff, 0xff, 0xff, 0xff], @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff], [0x0, 0x0, 0x0, 0x0, 0xff, 0xff], 0x158, 0x158, 0x188, [@stp={'stp\x00', 0x48, {{0x2, {0x8001, 0xfa, 0x7fffffff, @local={[0xaa, 0xaa, 0xaa, 0xaa, 0xaa], 0xaa}, [0xff, 0x0, 0xff], 0x9, 0x8000000, 0x6, 0x7, @random="3f90e813e7b1", [0x0, 0xff, 0xff, 0xff], 0x4e23, 0x4e23, 0x6, 0x2b8c, 0x6, 0x8, 0x9, 0x90, 0x2, 0x7fffffff}, 0x850, 0x1}}}, @ip6={'ip6\x00', 0x50, {{@loopback={0x0, 0x1}, @local={0xfe, 0x80, [], 0xaa}, [0xffffffff, 0xffffffff, 0xff000000, 0xff000000], [0xff, 0xffffffff, 0xffffffff], 0x80000001, 0x2b, 0x4, 0x42, 0x4e24, 0x4e22, 0x4e23, 0x4e22}}}]}}, @common=@AUDIT={'AUDIT\x00', 0x8, {{0x1}}}}]}]}, 0x840) 2018/05/02 09:54:30 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:30 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000240)=[{}, {}, {}, {}, {}, {}, {}], 0xd3, 0xffffffffffffff81, &(0x7f00000000c0)={0x8}, 0xffffffffffffff8d) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) getsockopt$inet_sctp6_SCTP_CONTEXT(r1, 0x84, 0x11, &(0x7f0000000100)={0x0, 0x3}, &(0x7f0000000140)=0x8) getsockopt$inet_sctp6_SCTP_SOCKOPT_PEELOFF(r1, 0x84, 0x66, &(0x7f00000001c0)={r3, 0x20}, &(0x7f00000002c0)=0x8) accept$inet6(r0, &(0x7f0000000340)={0x0, 0x0, 0x0, @mcast2}, &(0x7f00000003c0)=0x1c) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8), 0x0, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:30 executing program 5: r0 = openat$null(0xffffffffffffff9c, &(0x7f00000000c0)='/dev/null\x00', 0x101000, 0x0) getsockopt$inet_sctp6_SCTP_MAXSEG(0xffffffffffffffff, 0x84, 0xd, &(0x7f0000000240)=@assoc_value={0x0, 0x1ff}, &(0x7f0000000280)=0x8) setsockopt$inet_sctp_SCTP_SET_PEER_PRIMARY_ADDR(r0, 0x84, 0x5, &(0x7f00000003c0)={r1, @in={{0x2, 0x4e21, @dev={0xac, 0x14, 0x14, 0x10}}}}, 0x84) r2 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r2, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r3 = socket(0x7, 0x4000000000080002, 0x6) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r3, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r3, &(0x7f0000000200)={0x11, 0x0, r4, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r3, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r3, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) setsockopt$sock_linger(r0, 0x1, 0xd, &(0x7f00000004c0)={0x1, 0x1f}, 0x8) socketpair$unix(0x1, 0x10000000002, 0x0, &(0x7f0000000300)) getsockopt$inet_sctp6_SCTP_PARTIAL_DELIVERY_POINT(r0, 0x84, 0x13, &(0x7f00000002c0)={r1, 0x8}, &(0x7f0000000340)=0x8) 2018/05/02 09:54:30 executing program 2: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0xfffffffffffffffd, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}], 0x6, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x200000000000011, 0x4000000000080002, 0x0) getpeername(r1, &(0x7f0000000240)=@pppol2tp={0x0, 0x0, {0x0, 0xffffffffffffffff, {0x0, 0x0, @multicast1}}}, &(0x7f00000000c0)=0x80) perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r2, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:30 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:30 executing program 5: r0 = openat$snapshot(0xffffffffffffff9c, &(0x7f0000000380)='/dev/snapshot\x00', 0x0, 0x0) epoll_pwait(r0, &(0x7f0000000100)=[{}, {}, {}, {}, {}, {}, {}], 0x7, 0xffffffffffffff81, &(0x7f00000001c0)={0x8}, 0x8) r1 = socket(0x8200000000000011, 0x3, 0x812e) r2 = perf_event_open(&(0x7f0000000040)={0x1, 0x70, 0x0, 0x0, 0x0, 0x0, 0x0, 0x50d, 0x0, 0x0, 0x6, 0x0, 0x0, 0x3}, 0x0, 0xffffffffffffffff, 0xffffffffffffffff, 0x0) ioctl$sock_SIOCGIFINDEX(r1, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r1, &(0x7f0000000200)={0x11, 0x0, r3, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r1, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) ioctl$SIOCGIFMTU(r2, 0x8921, &(0x7f00000000c0)) sendmmsg$inet_sctp(r1, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) ioctl$TUNGETIFF(r0, 0x800454d2, &(0x7f0000000240)) 2018/05/02 09:54:30 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) 2018/05/02 09:54:30 executing program 1: epoll_pwait(0xffffffffffffffff, &(0x7f0000000240)=[{}, {}, {}, {}, {}], 0x5, 0xfffffffffffffd81, &(0x7f00000002c0)={0x8}, 0x8) r0 = socket(0x200000000000011, 0x4000000000080002, 0x0) ioctl$sock_SIOCGIFINDEX(r0, 0x8933, &(0x7f0000000000)={'sit0\x00', 0x0}) bind$packet(r0, &(0x7f0000000200)={0x11, 0x0, r1, 0x1, 0x0, 0x6, @broadcast=[0xff, 0xff, 0xff, 0xff, 0xff, 0xff]}, 0x14) setsockopt$SO_TIMESTAMPING(r0, 0x1, 0x25, &(0x7f0000000180)=0x110, 0x4) sendmmsg$inet_sctp(r0, &(0x7f0000871fc8)=[{&(0x7f000086c000)=@in6={0xa, 0x0, 0x2}, 0x1c, &(0x7f0000d1e000), 0x0, &(0x7f0000dda000)}], 0x492492492492510, 0x0) socketpair$unix(0x1, 0x2, 0x0, &(0x7f0000000300)) [ 554.928749] ================================================================== [ 554.936166] BUG: KASAN: use-after-free in __dev_queue_xmit+0x18fc/0x2080 [ 554.942993] Read of size 2 at addr ffff8801ce000d42 by task syz-executor5/32519 [ 554.950422] [ 554.952045] CPU: 0 PID: 32519 Comm: syz-executor5 Not tainted 4.9.97-g1321d42 #13 [ 554.959649] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 554.968995] ffff88019d2e7500 ffffffff81eb0b69 ffffea0007380000 ffff8801ce000d42 [ 554.977035] 0000000000000000 ffff8801ce000d42 ffff8801949f5c10 ffff88019d2e7538 [ 554.985066] ffffffff8156540b ffff8801ce000d42 0000000000000002 0000000000000000 [ 554.993098] Call Trace: [ 554.995675] [] dump_stack+0xc1/0x128 [ 555.001033] [] print_address_description+0x6c/0x234 [ 555.007699] [] kasan_report.cold.6+0x242/0x2fe [ 555.013922] [] ? __dev_queue_xmit+0x18fc/0x2080 [ 555.020234] [] __asan_report_load2_noabort+0x14/0x20 [ 555.026976] [] __dev_queue_xmit+0x18fc/0x2080 [ 555.033111] [] ? __dev_queue_xmit+0x1e2/0x2080 [ 555.039331] [] ? netdev_pick_tx+0x2c0/0x2c0 [ 555.045292] [] ? __cap_capable+0x168/0x1c0 [ 555.051168] [] ? selinux_capable+0x36/0x40 [ 555.057038] [] ? security_capable+0x94/0xc0 [ 555.062994] [] dev_queue_xmit+0x17/0x20 [ 555.068605] [] packet_sendmsg+0x1eff/0x4470 [ 555.074567] [] ? packet_cached_dev_get+0x1f0/0x1f0 [ 555.081138] [] ? sock_has_perm+0x292/0x3e0 [ 555.087273] [] ? sock_has_perm+0x9f/0x3e0 [ 555.093061] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 555.100153] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 555.106823] [] ? security_socket_sendmsg+0x8f/0xc0 [ 555.113395] [] ? packet_cached_dev_get+0x1f0/0x1f0 [ 555.119967] [] sock_sendmsg+0xcc/0x110 [ 555.125491] [] ___sys_sendmsg+0x47a/0x840 [ 555.131279] [] ? copy_msghdr_from_user+0x560/0x560 [ 555.137849] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 555.144681] [] ? debug_check_no_locks_freed+0x210/0x210 [ 555.151686] [] ? check_preemption_disabled+0x3b/0x170 [ 555.158513] [] ? retint_kernel+0x2d/0x2d [ 555.164298] [] __sys_sendmmsg+0x161/0x3d0 [ 555.170084] [] ? SyS_sendmsg+0x50/0x50 [ 555.175607] [] ? SYSC_perf_event_open+0x26e0/0x26e0 [ 555.182330] [] ? do_vfs_ioctl+0x1bf/0x11a0 [ 555.188206] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 555.194788] [] ? check_preemption_disabled+0x3b/0x170 [ 555.201629] [] ? retint_kernel+0x2d/0x2d [ 555.207338] [] SyS_sendmmsg+0x35/0x60 [ 555.212787] [] ? __sys_sendmmsg+0x3d0/0x3d0 [ 555.218752] [] do_syscall_64+0x1a6/0x490 [ 555.224458] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 555.231365] [ 555.232980] Allocated by task 32519: [ 555.236684] save_stack_trace+0x16/0x20 [ 555.240650] save_stack+0x43/0xd0 [ 555.244353] kasan_kmalloc+0xc7/0xe0 [ 555.248054] kasan_slab_alloc+0x12/0x20 [ 555.252017] __kmalloc_track_caller+0xdc/0x2b0 [ 555.256590] __kmalloc_reserve.isra.37+0x33/0xc0 [ 555.261335] __alloc_skb+0x11a/0x600 [ 555.265038] alloc_skb_with_frags+0xaf/0x520 [ 555.269432] sock_alloc_send_pskb+0x5a9/0x750 [ 555.273922] packet_sendmsg+0x1581/0x4470 [ 555.278061] sock_sendmsg+0xcc/0x110 [ 555.282398] ___sys_sendmsg+0x47a/0x840 [ 555.286362] __sys_sendmmsg+0x161/0x3d0 [ 555.290328] SyS_sendmmsg+0x35/0x60 [ 555.293946] do_syscall_64+0x1a6/0x490 [ 555.297820] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 555.302907] [ 555.304520] Freed by task 32519: [ 555.307874] save_stack_trace+0x16/0x20 [ 555.311837] save_stack+0x43/0xd0 [ 555.315284] kasan_slab_free+0x72/0xc0 [ 555.319160] kfree+0xfb/0x310 [ 555.322258] skb_free_head+0x8b/0xb0 [ 555.325967] skb_release_data+0x329/0x400 [ 555.330103] skb_release_all+0x4a/0x60 [ 555.333982] __kfree_skb+0x15/0x20 [ 555.337504] kfree_skb+0xcc/0x340 [ 555.340963] __skb_complete_tx_timestamp+0x2ba/0x3a0 [ 555.346043] __skb_tstamp_tx+0x19a/0x4b0 [ 555.350088] __dev_queue_xmit+0x130f/0x2080 [ 555.354383] dev_queue_xmit+0x17/0x20 [ 555.358161] packet_sendmsg+0x1eff/0x4470 [ 555.362280] sock_sendmsg+0xcc/0x110 [ 555.365975] ___sys_sendmsg+0x47a/0x840 [ 555.369929] __sys_sendmmsg+0x161/0x3d0 [ 555.373878] SyS_sendmmsg+0x35/0x60 [ 555.377497] do_syscall_64+0x1a6/0x490 [ 555.381356] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 555.386426] [ 555.388033] The buggy address belongs to the object at ffff8801ce000c80 [ 555.388033] which belongs to the cache kmalloc-512 of size 512 [ 555.400664] The buggy address is located 194 bytes inside of [ 555.400664] 512-byte region [ffff8801ce000c80, ffff8801ce000e80) [ 555.412510] The buggy address belongs to the page: [ 555.417414] page:ffffea0007380000 count:1 mapcount:0 mapping: (null) index:0x0 compound_mapcount: 0 [ 555.427594] flags: 0x8000000000004080(slab|head) [ 555.432317] page dumped because: kasan: bad access detected [ 555.438002] [ 555.439600] Memory state around the buggy address: [ 555.444506] ffff8801ce000c00: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 555.451838] ffff8801ce000c80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 555.459169] >ffff8801ce000d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 555.466499] ^ [ 555.471921] ffff8801ce000d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 555.479255] ffff8801ce000e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 555.486585] ================================================================== [ 555.493915] Disabling lock debugging due to kernel taint [ 555.499407] Kernel panic - not syncing: panic_on_warn set ... [ 555.499407] [ 555.506768] CPU: 0 PID: 32519 Comm: syz-executor5 Tainted: G B 4.9.97-g1321d42 #13 [ 555.515588] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 555.524933] ffff88019d2e7460 ffffffff81eb0b69 ffffffff843c4d05 00000000ffffffff [ 555.532934] 0000000000000000 0000000000000000 ffff8801949f5c10 ffff88019d2e7520 [ 555.540918] ffffffff8141f975 0000000041b58ab3 ffffffff843b8408 ffffffff8141f7b6 [ 555.548904] Call Trace: [ 555.551470] [] dump_stack+0xc1/0x128 [ 555.556810] [] panic+0x1bf/0x3bc [ 555.561799] [] ? add_taint.cold.6+0x16/0x16 [ 555.567745] [] kasan_end_report+0x47/0x4f [ 555.573516] [] kasan_report.cold.6+0x76/0x2fe [ 555.579634] [] ? __dev_queue_xmit+0x18fc/0x2080 [ 555.585928] [] __asan_report_load2_noabort+0x14/0x20 [ 555.592652] [] __dev_queue_xmit+0x18fc/0x2080 [ 555.598767] [] ? __dev_queue_xmit+0x1e2/0x2080 [ 555.604970] [] ? netdev_pick_tx+0x2c0/0x2c0 [ 555.610914] [] ? __cap_capable+0x168/0x1c0 [ 555.616783] [] ? selinux_capable+0x36/0x40 [ 555.622641] [] ? security_capable+0x94/0xc0 [ 555.628584] [] dev_queue_xmit+0x17/0x20 [ 555.634185] [] packet_sendmsg+0x1eff/0x4470 [ 555.640131] [] ? packet_cached_dev_get+0x1f0/0x1f0 [ 555.646681] [] ? sock_has_perm+0x292/0x3e0 [ 555.652538] [] ? sock_has_perm+0x9f/0x3e0 [ 555.658309] [] ? selinux_file_send_sigiotask+0x310/0x310 [ 555.665382] [] ? selinux_socket_sendmsg+0x3f/0x50 [ 555.671848] [] ? security_socket_sendmsg+0x8f/0xc0 [ 555.678401] [] ? packet_cached_dev_get+0x1f0/0x1f0 [ 555.684954] [] sock_sendmsg+0xcc/0x110 [ 555.690463] [] ___sys_sendmsg+0x47a/0x840 [ 555.696235] [] ? copy_msghdr_from_user+0x560/0x560 [ 555.702796] [] ? trace_hardirqs_on_caller+0x38b/0x590 [ 555.709612] [] ? debug_check_no_locks_freed+0x210/0x210 [ 555.716600] [] ? check_preemption_disabled+0x3b/0x170 [ 555.723417] [] ? retint_kernel+0x2d/0x2d [ 555.729103] [] __sys_sendmmsg+0x161/0x3d0 [ 555.734881] [] ? SyS_sendmsg+0x50/0x50 [ 555.740393] [] ? SYSC_perf_event_open+0x26e0/0x26e0 [ 555.747032] [] ? do_vfs_ioctl+0x1bf/0x11a0 [ 555.752891] [] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 555.759445] [] ? check_preemption_disabled+0x3b/0x170 [ 555.766435] [] ? retint_kernel+0x2d/0x2d [ 555.772121] [] SyS_sendmmsg+0x35/0x60 [ 555.777545] [] ? __sys_sendmmsg+0x3d0/0x3d0 [ 555.783487] [] do_syscall_64+0x1a6/0x490 [ 555.789171] [] entry_SYSCALL_64_after_swapgs+0x5d/0xdb [ 555.796506] Dumping ftrace buffer: [ 555.800023] (ftrace buffer empty) [ 555.803704] Kernel Offset: disabled [ 555.807302] Rebooting in 86400 seconds..