CVE-2026-98363 (GCVE-0-2026-98363)

Vulnerability from cvelistv5 – Published: 2026-10-06 08:46 – Updated: 2026-10-06 08:46
VLAI
Title
firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS
Summary
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scpi: reject DVFS OPP count above MAX_DVFS_OPPS scpi_dvfs_get_info() already rejected a zero opp_count, but still trusted any larger value from the SCP firmware. The shared-memory reply only holds MAX_DVFS_OPPS entries in buf.opps[]; a bigger count over-reads that array and then sizes the allocated OPP table incorrectly (garbage OPPs / OOB). The missing upper bound dates back to the original SCPI DVFS support. Reject zero and out-of-range counts in one check and return -EINVAL.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 8cb7cf56c9fe5412de238465b27ef35b4d2801aa , < e9887eeaa138c6b5697af3d2f7c71dc82407b154 (git)
Affected: 8cb7cf56c9fe5412de238465b27ef35b4d2801aa , < 1aadbef648e92ca642125f188f99b0a26628e3ba (git)
Affected: 8cb7cf56c9fe5412de238465b27ef35b4d2801aa , < 7daaa684097377b66b98a832de307688a7f3bbc7 (git)
Affected: 8cb7cf56c9fe5412de238465b27ef35b4d2801aa , < f17865332cc4ceaac846bcd7c28badbaedfabeff (git)
Affected: 8cb7cf56c9fe5412de238465b27ef35b4d2801aa , < 0130f9ad3974a5b2ad0fa03d0b300a9fb83ed901 (git)
Affected: 8cb7cf56c9fe5412de238465b27ef35b4d2801aa , < 69ec03cd481973e4be44a7158ed6c0fa06a9a5f9 (git)
Affected: 8cb7cf56c9fe5412de238465b27ef35b4d2801aa , < cc563a59aded6f3b02d75dcc3c0bc5e90755d99e (git)
Affected: 8cb7cf56c9fe5412de238465b27ef35b4d2801aa , < 32471d84a487c7fd74532bc96be56f8028cf4a3f (git)
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Linux Linux Affected: 4.4
Unaffected: 0 , < 4.4 (semver)
Unaffected: 5.10.271 , ≤ 5.10.* (semver)
Unaffected: 5.15.222 , ≤ 5.15.* (semver)
Unaffected: 6.1.189 , ≤ 6.1.* (semver)
Unaffected: 6.6.158 , ≤ 6.6.* (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.54 , ≤ 6.18.* (semver)
Unaffected: 7.2.8 , ≤ 7.2.* (semver)
Unaffected: 7.3-rc4 , ≤ * (original_commit_for_fix)
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    "dateReserved": "2026-09-25T10:25:14.344Z",
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    "state": "PUBLISHED"
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  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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