syzbot

=====================================================
BUG: KMSAN: uninit-value in __sctp_v6_cmp_addr+0x887/0x8c0 net/sctp/ipv6.c:649
 __sctp_v6_cmp_addr+0x887/0x8c0 net/sctp/ipv6.c:649
 sctp_inet6_cmp_addr+0x4f2/0x510 net/sctp/ipv6.c:983
 sctp_bind_addr_conflict+0x22a/0x3b0 net/sctp/bind_addr.c:390
 sctp_get_port_local+0x21eb/0x2440 net/sctp/socket.c:8452
 sctp_get_port net/sctp/socket.c:8523 [inline]
 sctp_listen_start net/sctp/socket.c:8567 [inline]
 sctp_inet_listen+0x710/0xfd0 net/sctp/socket.c:8636
 __sys_listen_socket net/socket.c:1912 [inline]
 __sys_listen net/socket.c:1927 [inline]
 __do_sys_listen net/socket.c:1932 [inline]
 __se_sys_listen net/socket.c:1930 [inline]
 __x64_sys_listen+0x343/0x4c0 net/socket.c:1930
 x64_sys_call+0x271d/0x3e20 arch/x86/include/generated/asm/syscalls_64.h:51
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xd9/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Local variable t.i created at:
 __do_sys_futex kernel/futex/syscalls.c:165 [inline]
 __se_sys_futex+0x4d/0x740 kernel/futex/syscalls.c:160
 __x64_sys_futex+0x114/0x1a0 kernel/futex/syscalls.c:160

CPU: 1 UID: 0 PID: 6089 Comm: syz.0.17 Not tainted syzkaller #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
=====================================================