iio: adc: ad4030: fix invalid oversampling_ratio validation
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EPSS probability
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Risk score
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Published
14 h ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
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Source agreement
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Evidence confidence
%61
Short explanation
A vulnerability has been identified in the Linux kernel iio adc ad4030 driver, where the logarithm is calculated before input validation within ad4030_set_avg_frame_len(). Passing zero or negative values leads to undefined results from ilog2().
Failing to validate input values before calculating their logarithm can lead to undefined results and potential system instability.
What should be done?
- Validating that the input is strictly positive prior to computing its logarithm
- Following vendor advisories and updates
The sources give limited detail on some technical conditions. Review the chain of evidence below before deciding how to act.
Chain of evidence and sources
Linux çekirdeği ad4030 sürücüsünde ad4030_set_avg_frame_len() fonksiyonu giriş doğrulanmadan önce logaritma hesaplamaktadır.
Sıfır veya negatif değerlerin geçirilmesi ilog2() fonksiyonundan tanımlanmamış sonuçlara yol açmaktadır.
Show the technical text from the sources
In the Linux kernel, the following vulnerability has been resolved: iio: adc: ad4030: fix invalid oversampling_ratio validation In ad4030_set_avg_frame_len(), the logarithm is calculated before input validation. Passing zero or negative values leads to an undefined result from ilog2(). Validate that the input is strictly positive prior to computing its logarithm.
Explanation produced with the local gemini-flash-lite-latest model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.
IMPACT: Affected Products and Software
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SCORING: CVSS from Multiple Sources
CVSS Scores
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| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| The sources have not yet published a verified CVSS metric. | ||||
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-98678 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-98678 weaknesses.
Official Sources and Advisories
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