BUG: memory leak
unreferenced object 0xffff8881104a3440 (size 64):
  comm "syz-executor817", pid 8453, jiffies 4294942674 (age 8.030s)
  hex dump (first 32 bytes):
    00 b8 fe 0c 81 88 ff ff 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 0a 00 00 00 48 00 00 00  ............H...
  backtrace:
    [<00000000a3ad8cb1>] kmalloc include/linux/slab.h:552 [inline]
    [<00000000a3ad8cb1>] v2_read_file_info+0x1ae/0x430 fs/quota/quota_v2.c:122
    [<00000000720ddd0a>] dquot_load_quota_sb+0x351/0x650 fs/quota/dquot.c:2387
    [<00000000e52ac661>] dquot_load_quota_inode fs/quota/dquot.c:2423 [inline]
    [<00000000e52ac661>] dquot_load_quota_inode+0xda/0x160 fs/quota/dquot.c:2415
    [<000000007a99599e>] ext4_quota_enable fs/ext4/super.c:6354 [inline]
    [<000000007a99599e>] ext4_enable_quotas+0x1b2/0x2f0 fs/ext4/super.c:6380
    [<000000005a88e538>] ext4_fill_super+0x3fa5/0x5ad0 fs/ext4/super.c:4994
    [<00000000ca86cee4>] mount_bdev+0x223/0x260 fs/super.c:1366
    [<0000000019bc0eb8>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:592
    [<00000000e7889ccf>] vfs_get_tree+0x28/0x100 fs/super.c:1496
    [<0000000002209940>] do_new_mount fs/namespace.c:2878 [inline]
    [<0000000002209940>] path_mount+0xc5e/0x1170 fs/namespace.c:3208
    [<000000004c96636a>] do_mount fs/namespace.c:3221 [inline]
    [<000000004c96636a>] __do_sys_mount fs/namespace.c:3429 [inline]
    [<000000004c96636a>] __se_sys_mount fs/namespace.c:3406 [inline]
    [<000000004c96636a>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3406
    [<0000000000ebc69e>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<00000000743df9f2>] entry_SYSCALL_64_after_hwframe+0x44/0xa9