CVE-2026-89438
What it is
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.
At a glance
- Exploit odds
- 0.2% chance of exploitation in the next 30 days (EPSS).
- Fix
- No patch or advisory is linked yet. Look at mitigations or restrict exposure.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Details
- Published
- Last modified
- Exploit probability
- 0.2% · EPSS, next 30 days
- Record status
- Received
References
- https://git.kernel.org/stable/c/0d601126c7afda9bb94dfecc8b2c0a16f20d76cb
- https://git.kernel.org/stable/c/124e2dbabe460c2a6e7440f4ad8af560131295c9
- https://git.kernel.org/stable/c/5b032e1dda486ca41d10536bd195bd8a559af1e2
- https://git.kernel.org/stable/c/82d4afadb02fb4d7d7bb9230900904c10e49ec87
- https://git.kernel.org/stable/c/c9ee2770eb95ba316a56d776b2b66666b70c194b