BUG: memory leak
unreferenced object 0xffff88811eef04a0 (size 32):
  comm "syz-executor.0", pid 6868, jiffies 4294945636 (age 14.200s)
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    00 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00  ................
  backtrace:
    [<000000000010fa99>] erase_aeb+0x25/0x110 drivers/mtd/ubi/wl.c:1690
    [<000000003575d866>] ubi_wl_init+0x193/0x5c0 drivers/mtd/ubi/wl.c:1757
    [<00000000514bc2e7>] ubi_attach+0x611/0x18ba drivers/mtd/ubi/attach.c:1605
    [<0000000028333ac3>] ubi_attach_mtd_dev+0x584/0xca0 drivers/mtd/ubi/build.c:967
    [<00000000593bc10a>] ctrl_cdev_ioctl+0x143/0x1b0 drivers/mtd/ubi/cdev.c:1043
    [<0000000042bc1d0b>] vfs_ioctl fs/ioctl.c:47 [inline]
    [<0000000042bc1d0b>] ksys_ioctl+0xa6/0xd0 fs/ioctl.c:763
    [<0000000050d0048e>] __do_sys_ioctl fs/ioctl.c:772 [inline]
    [<0000000050d0048e>] __se_sys_ioctl fs/ioctl.c:770 [inline]
    [<0000000050d0048e>] __x64_sys_ioctl+0x1a/0x20 fs/ioctl.c:770
    [<00000000d0daa890>] do_syscall_64+0x6e/0x220 arch/x86/entry/common.c:294
    [<000000004cc2f88e>] entry_SYSCALL_64_after_hwframe+0x44/0xa9