BUG: memory leak
unreferenced object 0xffff8881108e5300 (size 64):
  comm "syz-executor948", pid 8439, jiffies 4294942363 (age 8.050s)
  hex dump (first 32 bytes):
    00 f0 1e 0d 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:
    [<0000000051093582>] kmalloc include/linux/slab.h:552 [inline]
    [<0000000051093582>] v2_read_file_info+0x1ae/0x430 fs/quota/quota_v2.c:122
    [<0000000009432e7c>] dquot_load_quota_sb+0x351/0x650 fs/quota/dquot.c:2387
    [<000000007d2808f8>] dquot_load_quota_inode fs/quota/dquot.c:2423 [inline]
    [<000000007d2808f8>] dquot_load_quota_inode+0xda/0x160 fs/quota/dquot.c:2415
    [<0000000020e7a583>] ext4_quota_enable fs/ext4/super.c:6400 [inline]
    [<0000000020e7a583>] ext4_enable_quotas+0x1b2/0x2f0 fs/ext4/super.c:6426
    [<000000008d59daac>] ext4_fill_super+0x3fa5/0x5ad0 fs/ext4/super.c:5034
    [<0000000079506d76>] mount_bdev+0x223/0x260 fs/super.c:1366
    [<000000000d8abd99>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:592
    [<000000004710efa0>] vfs_get_tree+0x28/0x100 fs/super.c:1496
    [<000000003e309a7b>] do_new_mount fs/namespace.c:2881 [inline]
    [<000000003e309a7b>] path_mount+0xc5e/0x1170 fs/namespace.c:3211
    [<000000005e1908cc>] do_mount fs/namespace.c:3224 [inline]
    [<000000005e1908cc>] __do_sys_mount fs/namespace.c:3432 [inline]
    [<000000005e1908cc>] __se_sys_mount fs/namespace.c:3409 [inline]
    [<000000005e1908cc>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3409
    [<000000003fa9d051>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<00000000cfcf53e2>] entry_SYSCALL_64_after_hwframe+0x44/0xa9