CVE-2025-68249

Kernel warning via uninitialized device release

Published Dec 16, 2025 · Updated Dec 16, 2025

Resource-management error in the Linux kernel allows attackers to trigger a device-core warning via unspecified vectors. In drivers/most/most_usb.c, hdm_probe calls put_device() after an early error jump, before device_initialize() has initialized mdev->dev, causing kref_put() to act on an uninitialized kobject. The path requires a USB probe failure before initialization; public kernel materials do not establish attacker control, a crash, or another service interruption.

CVSS severityUnavailable
Unscored
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-management error in the Linux kernel allows attackers to trigger a device-core warning via unspecified vectors. In drivers/most/most_usb.c, hdm_probe calls put_device() after an early error jump, before device_initialize() has initialized mdev->dev, causing kref_put() to act on an uninitialized kobject. The path requires a USB probe failure before initialization; public kernel materials do not establish attacker control, a crash, or another service interruption.

The record

CVE
CVE-2025-68249
Published
Dec 16, 2025
Updated
Dec 16, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 16, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=5.9
  2. Affected versionversion=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <3509c748e79435d09e730673c8c100b7f0ebc87c
  3. Affected versionversion=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <4af0eedbdb4df7936bf43a28e31af232744d2620
  4. Affected versionversion=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <6fb8fbc0aa542af5bf0fed94fa6b0edf18144f95
  5. Affected versionversion=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <7d851f746067b8ee5bac9c262f326ace0a6ea253
  6. Affected versionversion=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <a8cc9e5fcb0e2eef21513a4fec888f5712cb8162
  7. Affected versionversion=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <ad2be44882716dc3589fbc5572cc13f88ead6b24
  8. Affected versionversion=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <c400410fe0580dd6118ae8d60287ac9ce71a65fd

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.9; version=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <3509c748e79435d09e730673c8c100b7f0ebc87c; version=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <4af0eedbdb4df7936bf43a28e31af232744d2620; version=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <6fb8fbc0aa542af5bf0fed94fa6b0edf18144f95; version=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <7d851f746067b8ee5bac9c262f326ace0a6ea253; version=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <a8cc9e5fcb0e2eef21513a4fec888f5712cb8162; version=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <ad2be44882716dc3589fbc5572cc13f88ead6b24; version=97a6f772f36b7f52bcfa56a581bbd2470cffe23d <c400410fe0580dd6118ae8d60287ac9ce71a65fd

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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