BUG: memory leak
unreferenced object 0xffff888127de26c0 (size 32):
  comm "syz-executor.0", pid 6691, jiffies 4294947836 (age 13.390s)
  hex dump (first 32 bytes):
    00 01 00 00 00 00 ad de 22 01 00 00 00 00 ad de  ........".......
    00 00 00 00 00 00 00 00 01 00 00 00 02 00 00 00  ................
  backtrace:
    [<00000000e1f1d290>] erase_aeb+0x25/0x110 drivers/mtd/ubi/wl.c:1700
    [<0000000016586797>] ubi_wl_init+0x191/0x5c0 drivers/mtd/ubi/wl.c:1767
    [<00000000a1946130>] ubi_attach+0x63b/0x1879 drivers/mtd/ubi/attach.c:1605
    [<0000000083259916>] ubi_attach_mtd_dev+0x65c/0xd30 drivers/mtd/ubi/build.c:970
    [<00000000c43d04c3>] ctrl_cdev_ioctl+0x144/0x1b0 drivers/mtd/ubi/cdev.c:1043
    [<000000007a3d7f23>] vfs_ioctl fs/ioctl.c:48 [inline]
    [<000000007a3d7f23>] ksys_ioctl+0xa6/0xd0 fs/ioctl.c:753
    [<0000000099322dee>] __do_sys_ioctl fs/ioctl.c:762 [inline]
    [<0000000099322dee>] __se_sys_ioctl fs/ioctl.c:760 [inline]
    [<0000000099322dee>] __x64_sys_ioctl+0x1a/0x20 fs/ioctl.c:760
    [<000000005060692d>] do_syscall_64+0x4c/0xe0 arch/x86/entry/common.c:384
    [<00000000c90e5888>] entry_SYSCALL_64_after_hwframe+0x44/0xa9