BUG: memory leak
unreferenced object 0xffff88810979d280 (size 96):
  comm "syz-executor.0", pid 5111, jiffies 4294971307 (age 11.120s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 88 d2 79 09 81 88 ff ff  ..........y.....
    88 d2 79 09 81 88 ff ff 00 00 00 00 00 00 00 00  ..y.............
  backtrace:
    [<ffffffff815147b4>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1062
    [<ffffffff81c142be>] kmalloc include/linux/slab.h:580 [inline]
    [<ffffffff81c142be>] autofs_wait+0x3fe/0x9a0 fs/autofs/waitq.c:378
    [<ffffffff81c155ab>] autofs_do_expire_multi+0xab/0x3e0 fs/autofs/expire.c:593
    [<ffffffff81c1680d>] _autofs_dev_ioctl+0x44d/0x4c0 fs/autofs/dev-ioctl.c:677
    [<ffffffff81c1689b>] autofs_dev_ioctl+0x1b/0x30 fs/autofs/dev-ioctl.c:693
    [<ffffffff8164f2a0>] vfs_ioctl fs/ioctl.c:51 [inline]
    [<ffffffff8164f2a0>] __do_sys_ioctl fs/ioctl.c:870 [inline]
    [<ffffffff8164f2a0>] __se_sys_ioctl fs/ioctl.c:856 [inline]
    [<ffffffff8164f2a0>] __x64_sys_ioctl+0x100/0x140 fs/ioctl.c:856
    [<ffffffff8499a8e9>] do_syscall_x64 arch/x86/entry/common.c:50 [inline]
    [<ffffffff8499a8e9>] do_syscall_64+0x39/0xb0 arch/x86/entry/common.c:80
    [<ffffffff84a0008b>] entry_SYSCALL_64_after_hwframe+0x63/0xcd