BUG: memory leak
unreferenced object 0xffff888102484e40 (size 176):
  comm "syz-executor.0", pid 3850, jiffies 4294945243 (age 11.610s)
  hex dump (first 32 bytes):
    01 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:
    [<ffffffff812a1ba7>] prepare_creds+0x27/0x470 kernel/cred.c:260
    [<ffffffff81c02d8d>] ovl_fill_super+0xad/0x2730 fs/overlayfs/super.c:2007
    [<ffffffff815fee5c>] mount_nodev+0x5c/0xc0 fs/super.c:1447
    [<ffffffff81662b0b>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:610
    [<ffffffff815fc948>] vfs_get_tree+0x28/0x100 fs/super.c:1531
    [<ffffffff81640487>] do_new_mount fs/namespace.c:3040 [inline]
    [<ffffffff81640487>] path_mount+0xc37/0x10d0 fs/namespace.c:3370
    [<ffffffff8164106e>] do_mount fs/namespace.c:3383 [inline]
    [<ffffffff8164106e>] __do_sys_mount fs/namespace.c:3591 [inline]
    [<ffffffff8164106e>] __se_sys_mount fs/namespace.c:3568 [inline]
    [<ffffffff8164106e>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3568
    [<ffffffff8485b265>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff8485b265>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff888106149ea0 (size 32):
  comm "syz-executor.0", pid 3850, jiffies 4294945243 (age 11.610s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 b0 72 bc 00 81 88 ff ff  .........r......
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace:
    [<ffffffff814ee1e6>] __do_kmalloc_node mm/slab_common.c:954 [inline]
    [<ffffffff814ee1e6>] __kmalloc+0x46/0x120 mm/slab_common.c:968
    [<ffffffff82215b45>] kmalloc include/linux/slab.h:558 [inline]
    [<ffffffff82215b45>] kzalloc include/linux/slab.h:689 [inline]
    [<ffffffff82215b45>] lsm_cred_alloc security/security.c:540 [inline]
    [<ffffffff82215b45>] security_prepare_creds+0xa5/0xd0 security/security.c:1705
    [<ffffffff812a1e66>] prepare_creds+0x2e6/0x470 kernel/cred.c:291
    [<ffffffff81c02d8d>] ovl_fill_super+0xad/0x2730 fs/overlayfs/super.c:2007
    [<ffffffff815fee5c>] mount_nodev+0x5c/0xc0 fs/super.c:1447
    [<ffffffff81662b0b>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:610
    [<ffffffff815fc948>] vfs_get_tree+0x28/0x100 fs/super.c:1531
    [<ffffffff81640487>] do_new_mount fs/namespace.c:3040 [inline]
    [<ffffffff81640487>] path_mount+0xc37/0x10d0 fs/namespace.c:3370
    [<ffffffff8164106e>] do_mount fs/namespace.c:3383 [inline]
    [<ffffffff8164106e>] __do_sys_mount fs/namespace.c:3591 [inline]
    [<ffffffff8164106e>] __se_sys_mount fs/namespace.c:3568 [inline]
    [<ffffffff8164106e>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3568
    [<ffffffff8485b265>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff8485b265>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd

BUG: memory leak
unreferenced object 0xffff88810c96c100 (size 256):
  comm "syz-executor.0", pid 3850, jiffies 4294945243 (age 11.610s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    20 fc b0 10 81 88 ff ff 40 8b 1e 1b 81 88 ff ff   .......@.......
  backtrace:
    [<ffffffff815fb6af>] kmem_cache_zalloc include/linux/slab.h:679 [inline]
    [<ffffffff815fb6af>] __alloc_file+0x1f/0xf0 fs/file_table.c:138
    [<ffffffff815fc2b9>] alloc_empty_file_noaccount+0x19/0x50 fs/file_table.c:209
    [<ffffffff8160f786>] vfs_tmpfile_open+0x26/0x90 fs/namei.c:3644
    [<ffffffff81c18acc>] ovl_do_tmpfile fs/overlayfs/overlayfs.h:317 [inline]
    [<ffffffff81c18acc>] ovl_copy_up_tmpfile fs/overlayfs/copy_up.c:747 [inline]
    [<ffffffff81c18acc>] ovl_do_copy_up fs/overlayfs/copy_up.c:839 [inline]
    [<ffffffff81c18acc>] ovl_copy_up_one+0xe5c/0x1670 fs/overlayfs/copy_up.c:1007
    [<ffffffff81c193e7>] ovl_copy_up_flags+0x107/0x170 fs/overlayfs/copy_up.c:1053
    [<ffffffff81c19550>] ovl_maybe_copy_up+0x100/0x130 fs/overlayfs/copy_up.c:1085
    [<ffffffff81c0eb72>] ovl_open+0x52/0x100 fs/overlayfs/file.c:152
    [<ffffffff815efc6f>] do_dentry_open+0x2ff/0x7c0 fs/open.c:882
    [<ffffffff8161618f>] do_open fs/namei.c:3557 [inline]
    [<ffffffff8161618f>] path_openat+0x161f/0x1b70 fs/namei.c:3713
    [<ffffffff81618f81>] do_filp_open+0xc1/0x1b0 fs/namei.c:3740
    [<ffffffff815f35dd>] do_sys_openat2+0xed/0x260 fs/open.c:1310
    [<ffffffff815f402f>] do_sys_open fs/open.c:1326 [inline]
    [<ffffffff815f402f>] __do_sys_openat fs/open.c:1342 [inline]
    [<ffffffff815f402f>] __se_sys_openat fs/open.c:1337 [inline]
    [<ffffffff815f402f>] __x64_sys_openat+0x7f/0xe0 fs/open.c:1337
    [<ffffffff8485b265>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff8485b265>] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a00087>] entry_SYSCALL_64_after_hwframe+0x63/0xcd