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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-89438

platform/x86: ISST: Validate logical CPU id and clos id

Description

In the Linux kernel, the following vulnerability has been resolved: platform/x86: ISST: Validate logical CPU id and clos id Validate max CLOS ID and logical CPU ID for core power feature. Reject any clos level or logical CPU number greater than the supported maximum. These are used to calculate MMIO offset.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 12a7d2cb811dd8a884dea088a2701fcb8d00136e to < 0d601126c7afda9bb94dfecc8b2c0a16f20d76cbaffected
  • 12a7d2cb811dd8a884dea088a2701fcb8d00136e to < c9ee2770eb95ba316a56d776b2b66666b70c194baffected
  • 12a7d2cb811dd8a884dea088a2701fcb8d00136e to < 5b032e1dda486ca41d10536bd195bd8a559af1e2affected
  • 12a7d2cb811dd8a884dea088a2701fcb8d00136e to < 82d4afadb02fb4d7d7bb9230900904c10e49ec87affected
  • 12a7d2cb811dd8a884dea088a2701fcb8d00136e to < 124e2dbabe460c2a6e7440f4ad8af560131295c9affected

Linux Linux

Default version status: affected

  • 6.4affected
  • 0 to < 6.4unaffected
  • 6.6.157 to ≤ 6.6.*unaffected
  • 6.12.109 to ≤ 6.12.*unaffected
  • 6.18.50 to ≤ 6.18.*unaffected
  • 7.2.4 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References