CVE-2025-38140: dm: limit swapping tables for devices with zone write plugs
CSIRTS triage
- What
- Device mapper fails to properly limit table swapping for devices with zone write plugs, risking resource exhaustion.
- Who is affected
- Systems using device mapper with zoned block devices and write plugs enabled.
- Urgency
- High severity (CVSS 7); denial of service possible through table swapping resource exhaustion.
- Action
- Update kernel to enforce limits on device mapper table swaps for zoned devices.
AI-assisted analysis generated from the source advisory — verify against the original.
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Details
Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-38140
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2025-381400.14% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 4% of all EPSS-scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2025-38140 | coverage & exploitation status | NVD · CVE.org |
Same CVEs, other sources
How other CERTs, PSIRTs and databases cover the vulnerabilities in this advisory.
- medium[UPDATE] [medium] Linux Kernel: Multiple vulnerabilitiescert-bund
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