VulnerabilityPublished 18 Oct 2026Updated 21 Oct 2026

CVE-2026-98825: Linux kernel · rtc: mpfs: fix unchecked devm_clk_get() error pointer in probe()

Affects Linux kernelSource CVE Database V5

Not known to be exploited · fixed in cfd70c9b19846c524f2b6195a7484bdf22071ccf : update Linux kernel when convenient.

Data as of 26 Oct 2026, 13:07 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.2% chance of exploitation in 30 days – higher than 9% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in cfd70c9b19846c524f2b6195a7484bdf22071ccf, ac41b05d15db3134e839148290d67415ee0bdb58, ab741d1b714b4acc605f3d14cdc4120f87341ed1 +2

Exploitation evidence

Disclosed: evidence found.
CVE published 18 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 0b31d703598dc1993867597bbd45e87d824fc427, < cfd70c9b19846c524f2b6195a7484bdf22071ccf	Fixed in cfd70c9b19846c524f2b6195a7484bdf22071ccf
LinuxLinux	Affected ≥ 0b31d703598dc1993867597bbd45e87d824fc427, < ac41b05d15db3134e839148290d67415ee0bdb58	Fixed in ac41b05d15db3134e839148290d67415ee0bdb58
LinuxLinux	Affected ≥ 0b31d703598dc1993867597bbd45e87d824fc427, < ab741d1b714b4acc605f3d14cdc4120f87341ed1	Fixed in ab741d1b714b4acc605f3d14cdc4120f87341ed1
LinuxLinux	Affected ≥ 0b31d703598dc1993867597bbd45e87d824fc427, < 74dc7c52946e3d47c40edd0875adb7cc15937066	Fixed in 74dc7c52946e3d47c40edd0875adb7cc15937066
LinuxLinux	Affected ≥ 0b31d703598dc1993867597bbd45e87d824fc427, < 8a03f8422fa08eed335c51bccb612a3d81739ff2	Fixed in 8a03f8422fa08eed335c51bccb612a3d81739ff2
LinuxLinux	Affected =6.0	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: rtc: mpfs: fix unchecked devm_clk_get() error pointer in probe() devm_clk_get(&pdev->dev, "rtcref")'s return value was passed straight into clk_get_rate() without checking it for an error first, unlike the "rtc" clock a few lines above which is correctly checked with IS_ERR(). clk_get_rate() only guards against a NULL clk, not an error pointer: if (!clk) return 0; ... rate = clk_core_get_rate_recalc(clk->core); so if devm_clk_get() ever returns an error pointer here (for example ERR_PTR(-EPROBE_DEFER), which is the normal, expected outcome if the clkcfg clock-provider this RTC depends on has not registered its clocks yet by the time this driver probes), clk_get_rate() dereferences that error pointer instead of returning 0, crashing instead of letting probe defer. Capture the clock in the existing 'clk' local and check it with IS_ERR() before calling clk_get_rate(), matching the handling already used for the "rtc" clock in this same function.

References

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