BUG: memory leak
unreferenced object 0xffff88810c5056c0 (size 64):
  comm "syz-executor586", pid 8451, jiffies 4294942298 (age 13.950s)
  hex dump (first 32 bytes):
    00 18 fa 0f 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:
    [<00000000ed4abb12>] kmalloc include/linux/slab.h:552 [inline]
    [<00000000ed4abb12>] v2_read_file_info+0x1ae/0x430 fs/quota/quota_v2.c:122
    [<000000005a995449>] dquot_load_quota_sb+0x351/0x650 fs/quota/dquot.c:2387
    [<00000000f56142a3>] dquot_load_quota_inode fs/quota/dquot.c:2423 [inline]
    [<00000000f56142a3>] dquot_load_quota_inode+0xda/0x160 fs/quota/dquot.c:2415
    [<00000000800d3dec>] ext4_quota_enable fs/ext4/super.c:6354 [inline]
    [<00000000800d3dec>] ext4_enable_quotas+0x1b2/0x2f0 fs/ext4/super.c:6380
    [<0000000027dae85e>] ext4_fill_super+0x3fa5/0x5ad0 fs/ext4/super.c:4994
    [<0000000086bded8d>] mount_bdev+0x223/0x260 fs/super.c:1366
    [<000000000188a38d>] legacy_get_tree+0x2b/0x90 fs/fs_context.c:592
    [<000000006e575a4f>] vfs_get_tree+0x28/0x100 fs/super.c:1496
    [<00000000aa5e795a>] do_new_mount fs/namespace.c:2878 [inline]
    [<00000000aa5e795a>] path_mount+0xc5e/0x1170 fs/namespace.c:3208
    [<00000000db88e550>] do_mount fs/namespace.c:3221 [inline]
    [<00000000db88e550>] __do_sys_mount fs/namespace.c:3429 [inline]
    [<00000000db88e550>] __se_sys_mount fs/namespace.c:3406 [inline]
    [<00000000db88e550>] __x64_sys_mount+0x18e/0x1d0 fs/namespace.c:3406
    [<00000000926d47c4>] do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
    [<00000000bc73849f>] entry_SYSCALL_64_after_hwframe+0x44/0xa9