VulnerabilityPublished 9 Nov 2025

CVE-2025-40108: Linux kernel · serial: qcom-geni: Fix blocked task

Source GCVE Database

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Not known to be exploited.

Data as of 4 Nov 2026, 19:00 UTC

Severity

Medium

Rated Medium by Threat Radar's AI analysis · No CVSS score from NVD or the CNA

Exploitation evidence

Disclosed: evidence found.
CVE published 9 Nov 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 4 Nov 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.
Weaponized: A Metasploit exploit module or Exploit-DB entry exists (Metasploit scanner modules do not count), 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.

ghsa-wqc8-4945-8xxr

What to do

AI-suggested

The vendor has reverted the commits that introduced the issue, effectively removing the problematic code. Users should update to a Linux kernel version that includes this revert to avoid the hang. Since the fix is a revert of the faulty commits, applying the updated kernel version resolves the issue.

Description

A vulnerability in the Linux kernel's Qualcomm GENI serial driver caused a task to hang indefinitely on certain Qualcomm platforms, specifically the RB1 board (QRB2210). This issue was introduced by commits enabling power management runtime for the serial driver but resulted in a blocked task during normal boot, rendering serial communication unusable. The problematic commits were reverted to resolve the issue.

References

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