INIT: Entering runlevel: 2 [info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.0.36' (ECDSA) to the list of known hosts. 2018/04/11 22:04:32 fuzzer started 2018/04/11 22:04:33 dialing manager at 10.128.0.26:41677 2018/04/11 22:04:39 kcov=true, comps=false 2018/04/11 22:04:41 executing program 0: r0 = socket$inet(0x2, 0x2, 0x0) recvmmsg(r0, &(0x7f00008db000)=[{{&(0x7f0000c5cfa0)=@nfc_llcp, 0x58, &(0x7f00006a9fc0)=[{&(0x7f00008cefa6)=""/90, 0x5a}, {&(0x7f0000000000)=""/225, 0xe1}, {&(0x7f0000672fb3)=""/173, 0xad}, {&(0x7f0000a2cf58)=""/174, 0xae}], 0x4, &(0x7f000042cfd2)=""/46, 0x2e}}], 0x1, 0x0, &(0x7f0000746ff0)) bind$inet(r0, &(0x7f0000eed000)={0x2, 0x4e21}, 0x10) sendto$inet(r0, &(0x7f0000168f26), 0x0, 0x48000, &(0x7f00008d2000)={0x2, 0x4e21, @loopback=0x7f000001}, 0x10) sendto$inet(r0, &(0x7f000029b000), 0x287, 0x0, &(0x7f0000778000)={0x2, 0x0, @loopback=0x7f000001}, 0x10) 2018/04/11 22:04:41 executing program 1: r0 = socket$inet(0x2, 0x40000000801, 0x0) setsockopt$inet_opts(r0, 0x0, 0x4, &(0x7f0000704ffb)="8907040400", 0x5) setsockopt$SO_BINDTODEVICE(r0, 0x1, 0x19, &(0x7f0000000040)='vcan0\x00', 0x10) connect$inet(r0, &(0x7f0000000200)={0x2, 0x0, @broadcast=0xffffffff}, 0x10) 2018/04/11 22:04:41 executing program 7: r0 = socket$inet(0x2, 0x5, 0x0) r1 = socket$inet6(0xa, 0x1, 0x8010000000000084) bind$inet6(r1, &(0x7f00004c0000)={0xa, 0x4e23, 0x0, @ipv4={[], [0xff, 0xff]}}, 0x1c) setsockopt$inet6_opts(r1, 0x29, 0x36, &(0x7f00000001c0)=@srh={0x0, 0x0, 0x4}, 0x8) perf_event_open(&(0x7f00000017c0)={0x2, 0x70, 0x3e5}, 0x0, 0x0, 0xffffffffffffffff, 0x0) listen(r1, 0x39c4) accept4$inet6(r1, &(0x7f0000000080)={0x0, 0x0, 0x0, @mcast2}, &(0x7f00000000c0)=0xffffffffffffffba, 0x0) connect$inet(r0, &(0x7f0000555ff0)={0x2, 0x4e23, @loopback=0x7f000001}, 0x10) 2018/04/11 22:04:41 executing program 4: bpf$MAP_CREATE(0x0, &(0x7f0000346fd4)={0x0, 0x0, 0x0, 0x4, 0x14}, 0x2c) r0 = bpf$PROG_LOAD(0x5, &(0x7f0000b7a000)={0x1, 0x5, &(0x7f0000346fc8)=@framed={{0x18}, [@alu={0x8000000201a7f19, 0x0, 0x7, 0x0, 0x1}], {0x95}}, &(0x7f0000f6bffb)='GPL\x00', 0x0, 0xffffffffffffff11, &(0x7f00001a7f05)=""/251}, 0x18) bpf$MAP_DELETE_ELEM(0x3, &(0x7f0000000040)={0xffffffffffffffff, &(0x7f00000000c0)="b82283392dc50ff1fb635a5849d2f5916ae2fdc24e95e12aa8daccf7393e72be9cc66f"}, 0x10) bpf$BPF_GET_PROG_INFO(0xf, &(0x7f0000000140)={r0, 0x50, &(0x7f00000000c0)}, 0x10) socketpair$inet_icmp(0x4, 0x705000, 0x1, &(0x7f0000000000)) 2018/04/11 22:04:41 executing program 2: mremap(&(0x7f000005d000/0x1000)=nil, 0x1000, 0xe000, 0x3, &(0x7f0000b18000/0xe000)=nil) mremap(&(0x7f000005d000/0x3000)=nil, 0x3000, 0x1000, 0x3, &(0x7f0000002000/0x1000)=nil) 2018/04/11 22:04:41 executing program 3: bpf$MAP_DELETE_ELEM(0x3, &(0x7f0000000040)={0xffffffffffffffff, &(0x7f00000000c0)="b82283392dc50ff1fb635a5849d2f5916ae2fdc24e95e12aa8daccf7393e72be9cc66f"}, 0x10) bpf$MAP_CREATE(0x0, &(0x7f0000346fd4)={0x0, 0x0, 0x0, 0x4, 0x7d}, 0x2c) r0 = bpf$PROG_LOAD(0x5, &(0x7f0000b7a000)={0x1, 0x5, &(0x7f0000346fc8)=@framed={{0x18}, [@alu={0x8000000201a7f19, 0x0, 0x7, 0x0, 0x1}], {0x95}}, &(0x7f0000f6bffb)='GPL\x00', 0x0, 0x299, &(0x7f00001a7f05)=""/251}, 0x18) bpf$BPF_GET_PROG_INFO(0xf, &(0x7f0000000140)={r0, 0x50, &(0x7f00000000c0)}, 0x10) perf_event_open(&(0x7f000025c000)={0x2, 0x78, 0x3e3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_bp={&(0x7f0000389000)}}, 0x0, 0x0, 0xffffffffffffffff, 0x0) perf_event_open(&(0x7f0000348f88)={0x2, 0x78, 0x3e2}, 0x0, 0x0, 0xffffffffffffffff, 0x0) socketpair$inet_icmp(0x705000, 0x2, 0x1, &(0x7f0000000000)) socketpair$inet_icmp(0x705000, 0x7fffffffefff, 0x1, &(0x7f0000000240)) 2018/04/11 22:04:41 executing program 5: syz_emit_ethernet(0x1, &(0x7f0000000400)=ANY=[@ANYBLOB="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"], &(0x7f0000000000)) 2018/04/11 22:04:41 executing program 6: getsockopt$inet_sctp6_SCTP_HMAC_IDENT(0xffffffffffffffff, 0x84, 0x16, &(0x7f0000000080)={0x3, [0x0, 0x8, 0x0]}, &(0x7f0000000340)=0xa) r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x10000000013, &(0x7f0000d06000)=0x1, 0x4) bind$inet(r0, &(0x7f0000738ff0)={0x2, 0x4e21, @multicast1=0xe0000001}, 0x10) sendto$inet(r0, &(0x7f0000a6efff), 0x0, 0x2001ffff, &(0x7f0000000280)={0x2, 0x4e21, @loopback=0x7f000001}, 0x10) setsockopt$inet_tcp_TCP_REPAIR_OPTIONS(r0, 0x6, 0x16, &(0x7f0000000000)=[{}, {}, {}, {}, {}, {}, {}, {}], 0x22d3) setsockopt$inet_tcp_int(r0, 0x6, 0x14, &(0x7f0000000300)=0xfffffffffffffffc, 0x4) sendmsg(r0, &(0x7f0000000400)={&(0x7f00000001c0)=@l2={0x1f}, 0x80, &(0x7f00000005c0)=[{&(0x7f00000017c0)="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", 0xa78}], 0x1, &(0x7f0000000a40)=ANY=[]}, 0x0) setsockopt$inet_tcp_TCP_REPAIR_WINDOW(r0, 0x6, 0x1d, &(0x7f0000000100)={0x0, 0x7ffb, 0x7fffffff}, 0x14) sendto$inet(r0, &(0x7f0000000180)="92", 0x1, 0x0, &(0x7f00000003c0)={0x2, 0x0, @multicast1=0xe0000001}, 0x10) syzkaller login: [ 43.948700] ip (3742) used greatest stack depth: 54688 bytes left [ 44.080409] ip (3753) used greatest stack depth: 54672 bytes left [ 45.355133] ip (3876) used greatest stack depth: 53960 bytes left [ 47.490845] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 47.537970] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 47.634680] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 47.672903] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 47.695205] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 47.710726] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 47.726557] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 47.771415] IPv6: ADDRCONF(NETDEV_UP): bridge0: link is not ready [ 56.621840] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 56.634901] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 56.721175] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 56.742574] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 56.749974] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 56.774675] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 56.802394] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 56.933715] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 57.398086] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 57.404389] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.413694] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.447870] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 57.458214] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.481578] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.509085] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 57.517117] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 57.528605] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 57.540728] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.578318] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.604165] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.626658] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.637797] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.645211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.655837] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 57.662157] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.671527] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.699246] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 57.705694] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.737865] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 57.893712] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 57.900226] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 57.917547] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready 2018/04/11 22:04:59 executing program 1: perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffff7ffffffffffb, 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) r0 = socket$inet6_icmp_raw(0xa, 0x3, 0x3a) setsockopt$inet6_MRT6_ADD_MFC(r0, 0x29, 0xcc, &(0x7f0000000100)={{0xa, 0x0, 0x0, @dev={0xfe, 0x80}}, {0xa}}, 0x5c) 2018/04/11 22:04:59 executing program 3: perf_event_open(&(0x7f0000940000)={0x2, 0x70, 0xfffffffffffffffe, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x3, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = socket$inet_tcp(0x2, 0x1, 0x0) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000000000)={'lo\x00'}) ioctl$sock_inet_SIOCSIFFLAGS(r0, 0x8914, &(0x7f0000001d40)={'lo\x00', 0xfff}) 2018/04/11 22:04:59 executing program 4: perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) r0 = syz_open_dev$evdev(&(0x7f0000057fee)='/dev/input/event#\x00', 0xafd, 0x8000040000002) write$evdev(r0, &(0x7f000023cfd0)=[{{}, 0x200002, 0x0, 0x403}, {}], 0x30) 2018/04/11 22:04:59 executing program 2: bpf$MAP_DELETE_ELEM(0x3, &(0x7f0000000040)={0xffffffffffffffff, &(0x7f00000000c0)="b82283392dc50ff1fb635a5849d2f5916ae2fdc24e95e12aa8daccf7393e72be9cc66f"}, 0x10) bpf$MAP_CREATE(0x0, &(0x7f0000346fd4)={0x0, 0x0, 0x0, 0x4, 0x21b}, 0x2c) r0 = bpf$PROG_LOAD(0x5, &(0x7f0000b7a000)={0x1, 0x5, &(0x7f0000346fc8)=@framed={{0x18}, [@alu={0x8000000201a7f19, 0x0, 0x7, 0x0, 0x1}], {0x95}}, &(0x7f0000f6bffb)='GPL\x00', 0x0, 0x299, &(0x7f00001a7f05)=""/251}, 0x18) bpf$BPF_GET_PROG_INFO(0xf, &(0x7f0000000140)={r0, 0x50, &(0x7f00000000c0)}, 0x10) socketpair$inet_icmp(0x7fffffffefff, 0x705000, 0x1, &(0x7f0000000080)) [ 59.491927] device lo entered promiscuous mode 2018/04/11 22:04:59 executing program 6: getsockopt$inet_sctp6_SCTP_HMAC_IDENT(0xffffffffffffffff, 0x84, 0x16, &(0x7f0000000080)={0x3, [0x0, 0x8, 0x0]}, &(0x7f0000000340)=0xa) r0 = socket$inet_tcp(0x2, 0x1, 0x0) setsockopt$inet_tcp_int(r0, 0x6, 0x10000000013, &(0x7f0000d06000)=0x1, 0x4) bind$inet(r0, &(0x7f0000738ff0)={0x2, 0x4e21, @multicast1=0xe0000001}, 0x10) sendto$inet(r0, &(0x7f0000a6efff), 0x0, 0x2001ffff, &(0x7f0000000280)={0x2, 0x4e21, @loopback=0x7f000001}, 0x10) setsockopt$inet_tcp_TCP_REPAIR_OPTIONS(r0, 0x6, 0x16, &(0x7f0000000000)=[{}, {}, {}, {}, {}, {}, {}, {}], 0x22d3) setsockopt$inet_tcp_int(r0, 0x6, 0x14, &(0x7f0000000300)=0xfffffffffffffffc, 0x4) sendmsg(r0, &(0x7f0000000400)={&(0x7f00000001c0)=@l2={0x1f}, 0x80, &(0x7f00000005c0)=[{&(0x7f00000017c0)="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", 0xa78}], 0x1, &(0x7f0000000a40)=ANY=[]}, 0x0) setsockopt$inet_tcp_TCP_REPAIR_WINDOW(r0, 0x6, 0x1d, &(0x7f0000000100)={0x0, 0x7ffb, 0x7fffffff}, 0x14) sendto$inet(r0, &(0x7f0000000180)="92", 0x1, 0x0, &(0x7f00000003c0)={0x2, 0x0, @multicast1=0xe0000001}, 0x10) 2018/04/11 22:04:59 executing program 5: r0 = socket$inet(0x2b, 0x1, 0x0) bind$inet(r0, &(0x7f0000000180)={0x2, 0x4e23, @loopback=0x7f000001}, 0x10) connect$inet(r0, &(0x7f0000000080)={0x2, 0x4e23}, 0x10) getsockopt$sock_buf(r0, 0x1, 0x20000000001c, &(0x7f0000000300)=""/211, &(0x7f0000000040)=0xd3) [ 59.540164] device lo left promiscuous mode 2018/04/11 22:04:59 executing program 4: mkdir(&(0x7f000000dff6)='./control\x00', 0x0) r0 = open(&(0x7f0000028000)='./control\x00', 0x0, 0x0) symlinkat(&(0x7f000003b000)='./file0\x00', r0, &(0x7f0000010000)='./control\x00') madvise(&(0x7f0000ffb000/0x4000)=nil, 0x4000, 0xf) name_to_handle_at(r0, &(0x7f0000000040)='./control\x00', &(0x7f0000000080)={0xc, 0x0, "95ebfe3d"}, &(0x7f00000000c0), 0x0) 2018/04/11 22:04:59 executing program 1: perf_event_open(&(0x7f0000000200)={0x2, 0x70, 0x3e6, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0xffff7ffffffffffb, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, @perf_config_ext}, 0x0, 0x0, 0xffffffffffffffff, 0x0) semctl$IPC_INFO(0x0, 0x0, 0x3, &(0x7f0000000040)=""/219) [ 59.924003] ================================================================== [ 59.931398] BUG: KMSAN: uninit-value in csum_partial_copy_to_user+0x450/0x500 [ 59.938649] CPU: 1 PID: 5056 Comm: syz-executor0 Not tainted 4.16.0+ #83 [ 59.945459] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 59.954788] Call Trace: [ 59.957373] dump_stack+0x185/0x1d0 [ 59.960991] ? csum_partial_copy_to_user+0x450/0x500 [ 59.966087] kmsan_report+0x142/0x240 [ 59.969865] __msan_warning_32+0x6c/0xb0 [ 59.973905] csum_partial_copy_to_user+0x450/0x500 [ 59.978817] csum_and_copy_to_iter+0x3dc/0x2140 [ 59.983461] ? kmsan_set_origin_inline+0x6b/0x120 [ 59.988283] ? __msan_poison_alloca+0x15c/0x1d0 [ 59.992954] skb_copy_and_csum_datagram+0x6d2/0x1080 [ 59.998053] skb_copy_and_csum_datagram_msg+0x557/0x960 [ 60.003402] udp_recvmsg+0x99c/0x1d90 [ 60.007187] ? udp_skb_dtor_locked+0x770/0x770 [ 60.011744] inet_recvmsg+0x4c2/0x5f0 [ 60.015525] sock_recvmsg+0x1d0/0x230 [ 60.019303] ? inet_sendpage+0x8c0/0x8c0 [ 60.023345] ___sys_recvmsg+0x3fb/0x810 [ 60.027304] ? __fget_light+0x56/0x710 [ 60.031172] ? __fdget+0x4e/0x60 [ 60.034523] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 60.039866] ? __fget_light+0x6b9/0x710 [ 60.043833] __sys_recvmmsg+0x54e/0xdb0 [ 60.047803] ? kmsan_set_origin+0x9e/0x160 [ 60.052034] SYSC_recvmmsg+0x29b/0x3e0 [ 60.055914] SyS_recvmmsg+0x76/0xa0 [ 60.059529] do_syscall_64+0x309/0x430 [ 60.063397] ? __sys_recvmmsg+0xdb0/0xdb0 [ 60.067524] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 60.072699] RIP: 0033:0x455279 [ 60.075862] RSP: 002b:00007f1325019c68 EFLAGS: 00000246 ORIG_RAX: 000000000000012b [ 60.083552] RAX: ffffffffffffffda RBX: 00007f132501a6d4 RCX: 0000000000455279 [ 60.090795] RDX: 0000000000000001 RSI: 00000000208db000 RDI: 0000000000000013 [ 60.098044] RBP: 000000000072bea0 R08: 0000000020746ff0 R09: 0000000000000000 [ 60.105298] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 60.112554] R13: 0000000000000495 R14: 00000000006f9e98 R15: 0000000000000000 [ 60.119801] [ 60.121402] Uninit was created at: [ 60.124922] kmsan_alloc_meta_for_pages+0x161/0x3a0 [ 60.129922] kmsan_alloc_page+0x82/0xe0 [ 60.133883] __alloc_pages_nodemask+0xf5b/0x5dc0 [ 60.138640] alloc_pages_current+0x6b5/0x970 [ 60.143035] skb_page_frag_refill+0x3ba/0x5e0 [ 60.147511] sk_page_frag_refill+0xa4/0x340 [ 60.151807] __ip_append_data+0x107e/0x3d10 [ 60.156103] ip_append_data+0x2fb/0x440 [ 60.160064] udp_sendmsg+0x746/0x3180 [ 60.163846] inet_sendmsg+0x48d/0x740 [ 60.167620] SYSC_sendto+0x6c3/0x7e0 [ 60.171307] SyS_sendto+0x8a/0xb0 [ 60.174733] do_syscall_64+0x309/0x430 [ 60.178594] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 60.183749] ================================================================== [ 60.191077] Disabling lock debugging due to kernel taint [ 60.196496] Kernel panic - not syncing: panic_on_warn set ... [ 60.196496] [ 60.203835] CPU: 1 PID: 5056 Comm: syz-executor0 Tainted: G B 4.16.0+ #83 [ 60.211949] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 60.221293] Call Trace: [ 60.223866] dump_stack+0x185/0x1d0 [ 60.227476] panic+0x39d/0x940 [ 60.230662] ? csum_partial_copy_to_user+0x450/0x500 [ 60.235833] kmsan_report+0x238/0x240 [ 60.239618] __msan_warning_32+0x6c/0xb0 [ 60.243657] csum_partial_copy_to_user+0x450/0x500 [ 60.248569] csum_and_copy_to_iter+0x3dc/0x2140 [ 60.253214] ? kmsan_set_origin_inline+0x6b/0x120 [ 60.258042] ? __msan_poison_alloca+0x15c/0x1d0 [ 60.262700] skb_copy_and_csum_datagram+0x6d2/0x1080 [ 60.267783] skb_copy_and_csum_datagram_msg+0x557/0x960 [ 60.273128] udp_recvmsg+0x99c/0x1d90 [ 60.276910] ? udp_skb_dtor_locked+0x770/0x770 [ 60.281469] inet_recvmsg+0x4c2/0x5f0 [ 60.285247] sock_recvmsg+0x1d0/0x230 [ 60.289029] ? inet_sendpage+0x8c0/0x8c0 [ 60.293075] ___sys_recvmsg+0x3fb/0x810 [ 60.297037] ? __fget_light+0x56/0x710 [ 60.300900] ? __fdget+0x4e/0x60 [ 60.304247] ? __msan_metadata_ptr_for_load_1+0x10/0x20 [ 60.309582] ? __fget_light+0x6b9/0x710 [ 60.313534] __sys_recvmmsg+0x54e/0xdb0 [ 60.317485] ? kmsan_set_origin+0x9e/0x160 [ 60.321703] SYSC_recvmmsg+0x29b/0x3e0 [ 60.325572] SyS_recvmmsg+0x76/0xa0 [ 60.329184] do_syscall_64+0x309/0x430 [ 60.333057] ? __sys_recvmmsg+0xdb0/0xdb0 [ 60.337180] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 [ 60.342345] RIP: 0033:0x455279 [ 60.345507] RSP: 002b:00007f1325019c68 EFLAGS: 00000246 ORIG_RAX: 000000000000012b [ 60.353187] RAX: ffffffffffffffda RBX: 00007f132501a6d4 RCX: 0000000000455279 [ 60.360429] RDX: 0000000000000001 RSI: 00000000208db000 RDI: 0000000000000013 [ 60.367672] RBP: 000000000072bea0 R08: 0000000020746ff0 R09: 0000000000000000 [ 60.374915] R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff [ 60.382159] R13: 0000000000000495 R14: 00000000006f9e98 R15: 0000000000000000 [ 60.389931] Dumping ftrace buffer: [ 60.393445] (ftrace buffer empty) [ 60.397133] Kernel Offset: disabled [ 60.400737] Rebooting in 86400 seconds..