BUG: memory leak
unreferenced object 0xffff88811a310380 (size 64):
  comm "syz-executor157", pid 6839, jiffies 4294942099 (age 7.830s)
  hex dump (first 32 bytes):
    20 4e 00 00 00 00 00 00 00 00 00 00 00 00 00 00   N..............
    b8 8b 2e 17 82 88 ff ff 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<00000000e67ea6c1>] kmemleak_alloc_recursive include/linux/kmemleak.h:43 [inline]
    [<00000000e67ea6c1>] slab_post_alloc_hook mm/slab.h:522 [inline]
    [<00000000e67ea6c1>] slab_alloc mm/slab.c:3319 [inline]
    [<00000000e67ea6c1>] kmem_cache_alloc+0x13f/0x2c0 mm/slab.c:3483
    [<000000008144838b>] sctp_bucket_create net/sctp/socket.c:8374 [inline]
    [<000000008144838b>] sctp_get_port_local+0x189/0x5b0 net/sctp/socket.c:8121
    [<0000000074df2d04>] sctp_do_bind+0xcc/0x1e0 net/sctp/socket.c:402
    [<00000000d982de19>] sctp_bind+0x44/0x70 net/sctp/socket.c:302
    [<00000000399d3d72>] inet_bind+0x40/0xc0 net/ipv4/af_inet.c:441
    [<00000000decb0212>] __sys_bind+0x11c/0x140 net/socket.c:1647
    [<0000000075f7a286>] __do_sys_bind net/socket.c:1658 [inline]
    [<0000000075f7a286>] __se_sys_bind net/socket.c:1656 [inline]
    [<0000000075f7a286>] __x64_sys_bind+0x1e/0x30 net/socket.c:1656
    [<000000007329eb89>] do_syscall_64+0x76/0x1a0 arch/x86/entry/common.c:296
    [<0000000062f603cc>] entry_SYSCALL_64_after_hwframe+0x44/0xa9