tmpfs: Bad value '3' for mount option 'gid'
==================================================================
BUG: KMSAN: uninit-value in __sctp_v6_cmp_addr+0x49a/0x850 net/sctp/ipv6.c:580
CPU: 1 PID: 7136 Comm: syz-executor6 Not tainted 4.17.0-rc3+ #88
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 <IRQ>
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x185/0x1d0 lib/dump_stack.c:113
 kmsan_report+0x142/0x240 mm/kmsan/kmsan.c:1067
 __msan_warning_32+0x6c/0xb0 mm/kmsan/kmsan_instr.c:683
 __sctp_v6_cmp_addr+0x49a/0x850 net/sctp/ipv6.c:580
 sctp_inet6_cmp_addr+0x3dc/0x400 net/sctp/ipv6.c:898
 sctp_bind_addr_match+0x18b/0x2f0 net/sctp/bind_addr.c:330
 sctp_addrs_lookup_transport+0x904/0xa20 net/sctp/input.c:942
 __sctp_lookup_association net/sctp/input.c:985 [inline]
 __sctp_rcv_lookup net/sctp/input.c:1249 [inline]
 sctp_rcv+0x15e6/0x4d30 net/sctp/input.c:170
 ip_local_deliver_finish+0x874/0xec0 net/ipv4/ip_input.c:215
 NF_HOOK include/linux/netfilter.h:288 [inline]
 ip_local_deliver+0x43c/0x4e0 net/ipv4/ip_input.c:256
 dst_input include/net/dst.h:450 [inline]
 ip_rcv_finish+0xa36/0x1d00 net/ipv4/ip_input.c:396
tmpfs: Bad value '3' for mount option 'gid'
 NF_HOOK include/linux/netfilter.h:288 [inline]
 ip_rcv+0x118f/0x16d0 net/ipv4/ip_input.c:492
 __netif_receive_skb_core+0x47df/0x4a90 net/core/dev.c:4592
 __netif_receive_skb net/core/dev.c:4657 [inline]
 process_backlog+0x62d/0xe20 net/core/dev.c:5337
 napi_poll net/core/dev.c:5735 [inline]
 net_rx_action+0x7c1/0x1a70 net/core/dev.c:5801
 __do_softirq+0x56d/0x93d kernel/softirq.c:285
 do_softirq_own_stack+0x2a/0x40 arch/x86/entry/entry_64.S:1046
 </IRQ>
 do_softirq kernel/softirq.c:329 [inline]
 __local_bh_enable_ip+0x114/0x140 kernel/softirq.c:182
 local_bh_enable+0x36/0x40 include/linux/bottom_half.h:32
 rcu_read_unlock_bh include/linux/rcupdate.h:728 [inline]
 ip_finish_output2+0x135a/0x1470 net/ipv4/ip_output.c:231
 ip_finish_output+0xcb2/0xff0 net/ipv4/ip_output.c:317
 NF_HOOK_COND include/linux/netfilter.h:277 [inline]
 ip_output+0x505/0x5d0 net/ipv4/ip_output.c:405
 dst_output include/net/dst.h:444 [inline]
 ip_local_out net/ipv4/ip_output.c:124 [inline]
 ip_queue_xmit+0x1a1e/0x1d10 net/ipv4/ip_output.c:504
 sctp_v4_xmit+0x188/0x210 net/sctp/protocol.c:983
 sctp_packet_transmit+0x3eaa/0x4350 net/sctp/output.c:650
 sctp_outq_flush+0x11e6/0x6320 net/sctp/outqueue.c:911
 sctp_outq_uncork+0xd2/0xf0 net/sctp/outqueue.c:776
 sctp_cmd_interpreter net/sctp/sm_sideeffect.c:1820 [inline]
 sctp_side_effects net/sctp/sm_sideeffect.c:1220 [inline]
 sctp_do_sm+0x8707/0x8d20 net/sctp/sm_sideeffect.c:1191
 sctp_primitive_ASSOCIATE+0x172/0x1a0 net/sctp/primitive.c:88
 __sctp_connect+0x1655/0x1b00 net/sctp/socket.c:1247
 __sctp_setsockopt_connectx net/sctp/socket.c:1370 [inline]
 sctp_getsockopt_connectx3 net/sctp/socket.c:1455 [inline]
 sctp_getsockopt+0x79a4/0x146a0 net/sctp/socket.c:7252
 sock_common_getsockopt+0x13a/0x170 net/core/sock.c:2998
 __sys_getsockopt+0x49b/0x560 net/socket.c:1940
 __do_sys_getsockopt net/socket.c:1951 [inline]
 __se_sys_getsockopt net/socket.c:1948 [inline]
 __x64_sys_getsockopt+0x15d/0x1c0 net/socket.c:1948
 do_syscall_64+0x154/0x220 arch/x86/entry/common.c:287
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x455979
RSP: 002b:00007f5880b0ec68 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007f5880b0f6d4 RCX: 0000000000455979
RDX: 000000000000006f RSI: 0000000000000084 RDI: 0000000000000013
RBP: 000000000072bea0 R08: 0000000020000540 R09: 0000000000000000
R10: 0000000020000500 R11: 0000000000000246 R12: 00000000ffffffff
R13: 000000000000013b R14: 00000000006f5e28 R15: 0000000000000000

Local variable description: ----dest@sctp_rcv
Variable was created at:
 sctp_rcv+0x13d/0x4d30 net/sctp/input.c:97
 ip_local_deliver_finish+0x874/0xec0 net/ipv4/ip_input.c:215
==================================================================