BUG: memory leak
unreferenced object 0xffff88804c9aa5b0 (size 144):
  comm "syz-executor.4", pid 63270, jiffies 4297517497 (age 21.592s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 51 39 4d 66 00 00 00 00  ........Q9Mf....
    59 16 db 28 00 00 00 00 51 39 4d 66 00 00 00 00  Y..(....Q9Mf....
  backtrace:
    [<000000003d10702d>] kmem_cache_zalloc include/linux/slab.h:654 [inline]
    [<000000003d10702d>] __kernfs_iattrs+0xbc/0x470 fs/kernfs/inode.c:43
    [<0000000081b87612>] kernfs_iattrs fs/kernfs/inode.c:66 [inline]
    [<0000000081b87612>] kernfs_xattr_set+0x2b/0x80 fs/kernfs/inode.c:304
    [<0000000066bd033c>] selinux_kernfs_init_security+0x26d/0x4c0 security/selinux/hooks.c:3522
    [<000000009830c8c2>] security_kernfs_init_security+0x4e/0xb0 security/security.c:1456
    [<000000004cdf9798>] __kernfs_new_node+0x531/0x860 fs/kernfs/dir.c:674
    [<0000000094653238>] kernfs_new_node+0x18d/0x250 fs/kernfs/dir.c:711
    [<000000009e2d14fb>] kernfs_create_dir_ns+0x49/0x160 fs/kernfs/dir.c:1047
    [<0000000050a53011>] kernfs_create_dir include/linux/kernfs.h:561 [inline]
    [<0000000050a53011>] cgroup_create kernel/cgroup/cgroup.c:5343 [inline]
    [<0000000050a53011>] cgroup_mkdir+0x318/0xf50 kernel/cgroup/cgroup.c:5477
    [<000000005bceff97>] kernfs_iop_mkdir+0x14d/0x1e0 fs/kernfs/dir.c:1148
    [<00000000d7064356>] vfs_mkdir+0x493/0x700 fs/namei.c:3706
    [<0000000020b5ed87>] do_mkdirat+0x150/0x2b0 fs/namei.c:3728
    [<000000001b611463>] do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46
    [<000000008c6143d2>] entry_SYSCALL_64_after_hwframe+0x67/0xcc

BUG: leak checking failed