CVE-2026-90216
2026-09-17
17h17 +00:00
17h17 +00:00
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Deskripsi CVE
In the Linux kernel, the following vulnerability has been resolved:
ubi: Fix rollback for explicit UBI device numbers
ubi_init_attach() rolls back module initialization failures by scanning
ubi_devices[0..i-1], where i is the mtd= parameter index. That assumes
the parameter index matches the UBI device number.
That assumption is not true when mtd= specifies an explicit ubi_num. A
successfully attached device can be stored at a higher ubi_devices[]
slot, and a later failure can miss it during rollback.
Scan the full ubi_devices[] array and detach by the actual array index,
matching the way UBI devices are stored.
