ioctl$LOOP_SET_STATUS(0xffffffffffffffff, 0x4c02, &(0x7f00000002c0)={0x0, {}, 0x0, {}, 0xff, 0x3, 0x12, 0x14, "89f5e098115db60136d1d378e45f29636f0a74d7fd2b954ac53340fa745e40721eec0c08b7d035177b2bf6830e4e381a21ec2040793bae1a3f3ff60b4feb9ee1", "bf1047a99b9c26db92c45dc422ff6a112317d290329812cbd09ae21835b7290d", [0x3, 0x8]})
sendfile(r1, r0, 0x0, 0xffffffff030)
BUG: memory leak
unreferenced object 0xffff888009d0c1c0 (size 32):
  comm "syz-executor.1", pid 11489, jiffies 4297168812 (age 20.703s)
  hex dump (first 32 bytes):
    39 70 2d 66 63 61 6c 6c 2d 63 61 63 68 65 2d 37  9p-fcall-cache-7
    35 31 00 00 00 00 00 00 00 00 00 00 00 00 00 00  51..............
  backtrace:
    [<00000000b79d795c>] kstrdup+0x36/0x70 mm/util.c:60
    [<0000000085d26e6a>] kstrdup_const+0x53/0x80 mm/util.c:83
    [<00000000e0d47dc0>] kvasprintf_const+0x10c/0x1a0 lib/kasprintf.c:48
    [<0000000016a6034e>] kobject_set_name_vargs+0x56/0x150 lib/kobject.c:297
    [<000000003128a8a4>] kobject_add_varg lib/kobject.c:392 [inline]
    [<000000003128a8a4>] kobject_init_and_add+0xc9/0x160 lib/kobject.c:481
    [<000000003801ab53>] sysfs_slab_add+0x172/0x200 mm/slub.c:5626
    [<000000007d1a0e69>] __kmem_cache_create+0x3db/0x520 mm/slub.c:4445
    [<000000005cf649fa>] create_cache mm/slab_common.c:255 [inline]
    [<000000005cf649fa>] kmem_cache_create_usercopy+0x1db/0x2f0 mm/slab_common.c:350
    [<00000000a841f070>] p9_client_create+0xc6a/0x1230 net/9p/client.c:1074
    [<000000004ecfb046>] v9fs_session_init+0x1dd/0x1680 fs/9p/v9fs.c:406
    [<00000000fc53da5d>] v9fs_mount+0x79/0x8f0 fs/9p/vfs_super.c:126
    [<00000000dc704b86>] legacy_get_tree+0x105/0x220 fs/fs_context.c:593
    [<00000000cb713d09>] vfs_get_tree+0x8e/0x300 fs/super.c:1572
    [<0000000087cec03b>] do_new_mount fs/namespace.c:2915 [inline]
    [<0000000087cec03b>] path_mount+0x1429/0x2120 fs/namespace.c:3245
    [<000000007c740864>] do_mount fs/namespace.c:3258 [inline]
    [<000000007c740864>] __do_sys_mount fs/namespace.c:3466 [inline]
    [<000000007c740864>] __se_sys_mount fs/namespace.c:3443 [inline]
    [<000000007c740864>] __x64_sys_mount+0x282/0x300 fs/namespace.c:3443
    [<000000006f39f7d5>] do_syscall_64+0x33/0x40 arch/x86/entry/common.c:46

BUG: leak checking failed