=====================================================
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]
 __ia32_sys_listen+0x340/0x4c0 net/socket.c:1930
 ia32_sys_call+0x338c/0x4310 arch/x86/include/generated/asm/syscalls_32.h:364
 do_syscall_32_irqs_on arch/x86/entry/syscall_32.c:83 [inline]
 __do_fast_syscall_32+0xb0/0x150 arch/x86/entry/syscall_32.c:306
 do_fast_syscall_32+0x38/0x80 arch/x86/entry/syscall_32.c:331
 do_SYSENTER_32+0x1f/0x30 arch/x86/entry/syscall_32.c:369
 entry_SYSENTER_compat_after_hwframe+0x84/0x8e

Local variable addr.i.i created at:
 sctp_get_port net/sctp/socket.c:8515 [inline]
 sctp_listen_start net/sctp/socket.c:8567 [inline]
 sctp_inet_listen+0x650/0xfd0 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]
 __ia32_sys_listen+0x340/0x4c0 net/socket.c:1930

CPU: 1 UID: 0 PID: 28646 Comm: syz.1.8203 Not tainted syzkaller #0 PREEMPT(none) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
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