watchdog: da9063: fix suspend/resume handling of HW_RUNNING watchdog
CVSS score
—
EPSS probability
%0.2
Risk score
—
Published
4 d ago
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Vulnerability description
CVE AI research
DayBreach AI Explanation
Verified against sourcesSources read
2
Source agreement
Tam uyum
Evidence confidence
%63
Short explanation
The da9063 watchdog driver in the Linux kernel fails to properly check the WDOG_HW_RUNNING flag during suspend and resume operations. This flaw causes the watchdog counter to keep counting during system suspend if userspace never opens the device, leading to an unexpected system reset.
This vulnerability prevents the watchdog counter from stopping during system suspension, which can trigger unexpected system resets.
What should be done?
- Follow vendor advisories for updates and guidance
Chain of evidence and sources
da9063_wdt_suspend() ve da9063_wdt_resume() fonksiyonları yalnızca watchdog_active() durumunu kontrol etmektedir.
Kullanıcı alanı aygıtı açmadığında WDOG_ACTIVE temiz kalır ve wdt_disable() çalıştırılmaz.
Bu durum, askıya alma sırasında watchdog sayacının çalışmaya devam etmesine ve beklenmeyen bir sistem sıfırlanmasına yol açar.
Show the technical text from the sources
In the Linux kernel, the following vulnerability has been resolved: watchdog: da9063: fix suspend/resume handling of HW_RUNNING watchdog da9063_wdt_suspend() and da9063_wdt_resume() only check watchdog_active(), when the watchdog is left running by the driver sets WDOG_HW_RUNNING in da9063_wdt_probe() but userspace never opens the device, so WDOG_ACTIVE remains cleared, the wdt_disable() will not be executed in da9063_wdt_suspend. In this case, the suspend callback is a no-op and the watchdog keeps counting during system suspend, leading to an unexpected system reset. Check WDOG_HW_RUNNING and wdd，can fix this issue.
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
RED HAT CSAF/VEX: Product Impact Check
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-2026-98410 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-2026-98410 weaknesses.
Official Sources and Advisories
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