BUG: memory leak
unreferenced object 0xffff888122b7b820 (size 32):
  comm "syz-executor.0", pid 7143, jiffies 4294945854 (age 33.510s)
  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:
    [<000000002fa254db>] erase_aeb+0x25/0x110 drivers/mtd/ubi/wl.c:1690
    [<000000007af6081d>] ubi_wl_init+0x193/0x5c0 drivers/mtd/ubi/wl.c:1757
    [<00000000cf818333>] ubi_attach+0x611/0x18ba drivers/mtd/ubi/attach.c:1605
    [<00000000ca65afe5>] ubi_attach_mtd_dev+0x584/0xca0 drivers/mtd/ubi/build.c:967
    [<00000000a7d8b84d>] ctrl_cdev_ioctl+0x143/0x1b0 drivers/mtd/ubi/cdev.c:1043
    [<00000000cf9f4f88>] vfs_ioctl fs/ioctl.c:47 [inline]
    [<00000000cf9f4f88>] ksys_ioctl+0xa6/0xd0 fs/ioctl.c:763
    [<00000000186631f9>] __do_sys_ioctl fs/ioctl.c:772 [inline]
    [<00000000186631f9>] __se_sys_ioctl fs/ioctl.c:770 [inline]
    [<00000000186631f9>] __x64_sys_ioctl+0x1a/0x20 fs/ioctl.c:770
    [<00000000d15f6ef6>] do_syscall_64+0x6e/0x220 arch/x86/entry/common.c:294
    [<000000002ca78120>] entry_SYSCALL_64_after_hwframe+0x44/0xa9