BUG: memory leak
unreferenced object 0xffff88811bc80000 (size 131072):
  comm "syz-executor.0", pid 5095, jiffies 4294941939
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 4c5ce6a5):
    [<ffffffff8165ba5d>] __kmalloc_large_node+0xdd/0x150 mm/slub.c:3920
    [<ffffffff81662c6f>] __do_kmalloc_node mm/slub.c:3954 [inline]
    [<ffffffff81662c6f>] __kmalloc_node+0x35f/0x420 mm/slub.c:3973
    [<ffffffff815d49ef>] kmalloc_node include/linux/slab.h:648 [inline]
    [<ffffffff815d49ef>] kvmalloc_node+0x6f/0x170 mm/util.c:634
    [<ffffffff819f342e>] kvmalloc include/linux/slab.h:766 [inline]
    [<ffffffff819f342e>] kvmalloc_array include/linux/slab.h:784 [inline]
    [<ffffffff819f342e>] kvcalloc include/linux/slab.h:789 [inline]
    [<ffffffff819f342e>] exfat_load_upcase_table fs/exfat/nls.c:661 [inline]
    [<ffffffff819f342e>] exfat_create_upcase_table+0x1be/0x650 fs/exfat/nls.c:778
    [<ffffffff819f00dd>] __exfat_fill_super fs/exfat/super.c:591 [inline]
    [<ffffffff819f00dd>] exfat_fill_super+0x7ed/0xf10 fs/exfat/super.c:641
    [<ffffffff81717f2c>] get_tree_bdev+0x19c/0x270 fs/super.c:1614
    [<ffffffff81714a6d>] vfs_get_tree+0x2d/0x120 fs/super.c:1779
    [<ffffffff81760047>] do_new_mount fs/namespace.c:3352 [inline]
    [<ffffffff81760047>] path_mount+0xc97/0x10d0 fs/namespace.c:3679
    [<ffffffff81760c15>] do_mount fs/namespace.c:3692 [inline]
    [<ffffffff81760c15>] __do_sys_mount fs/namespace.c:3898 [inline]
    [<ffffffff81760c15>] __se_sys_mount fs/namespace.c:3875 [inline]
    [<ffffffff81760c15>] __x64_sys_mount+0x1a5/0x1f0 fs/namespace.c:3875
    [<ffffffff850d5f00>] do_syscall_x64 arch/x86/entry/common.c:52 [inline]
    [<ffffffff850d5f00>] do_syscall_64+0xa0/0x1d0 arch/x86/entry/common.c:83
    [<ffffffff85200130>] entry_SYSCALL_64_after_hwframe+0x77/0x7f