BUG: memory leak
unreferenced object 0xffff88811a113380 (size 64):
  comm "syz-executor170", pid 6831, jiffies 4294942809 (age 7.770s)
  hex dump (first 32 bytes):
    21 4e 00 00 00 00 00 00 00 00 00 00 00 00 00 00  !N..............
    68 31 2c 17 82 88 ff ff 00 00 00 00 00 00 00 00  h1,.............
  backtrace:
    [<0000000086d21f36>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<0000000086d21f36>] slab_post_alloc_hook mm/slab.h:586 [inline]
    [<0000000086d21f36>] slab_alloc mm/slab.c:3319 [inline]
    [<0000000086d21f36>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
    [<00000000a6640026>] sctp_bucket_create net/sctp/socket.c:8523 [inline]
    [<00000000a6640026>] sctp_get_port_local+0x189/0x5a0 net/sctp/socket.c:8270
    [<00000000a0a3a769>] sctp_do_bind+0xcc/0x200 net/sctp/socket.c:402
    [<0000000044e091b6>] sctp_bindx_add+0x4b/0xd0 net/sctp/socket.c:497
    [<00000000a1caed46>] sctp_setsockopt_bindx+0x156/0x1b0 net/sctp/socket.c:1022
    [<00000000261b1b94>] sctp_setsockopt net/sctp/socket.c:4641 [inline]
    [<00000000261b1b94>] sctp_setsockopt+0xaea/0x2dc0 net/sctp/socket.c:4611
    [<0000000033afce9e>] sock_common_setsockopt+0x38/0x50 net/core/sock.c:3142
    [<00000000f2d654c2>] __sys_setsockopt+0x10f/0x220 net/socket.c:2084
    [<00000000bd9d613c>] __do_sys_setsockopt net/socket.c:2100 [inline]
    [<00000000bd9d613c>] __se_sys_setsockopt net/socket.c:2097 [inline]
    [<00000000bd9d613c>] __x64_sys_setsockopt+0x26/0x30 net/socket.c:2097
    [<00000000496e2cc3>] do_syscall_64+0x73/0x1f0 arch/x86/entry/common.c:290
    [<00000000586865c1>] entry_SYSCALL_64_after_hwframe+0x44/0xa9