CVE-2025-68331

System panic via premature scatter-gather table release

Published Dec 22, 2025 · Updated Dec 22, 2025

Use-after-free in the Linux kernel UAS driver allows physically proximate attackers with low-privileged access to trigger a system panic. When uas_submit_urbs returns -ENODEV after submitting URBs, error handling calls scsi_done and frees the scatter-gather table before URB giveback unmaps it. Triggering the race requires UAS device removal during an active transfer; the reported consequence is a kernel panic and service interruption.

CVSS severity5.4
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in the Linux kernel UAS driver allows physically proximate attackers with low-privileged access to trigger a system panic. When uas_submit_urbs returns -ENODEV after submitting URBs, error handling calls scsi_done and frees the scatter-gather table before URB giveback unmaps it. Triggering the race requires UAS device removal during an active transfer; the reported consequence is a kernel panic and service interruption.

The record

CVE
CVE-2025-68331
Published
Dec 22, 2025
Updated
Dec 22, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-119, T1499
Attack vector
physical
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 22, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 22, 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=5.10
  2. Affected versionversion=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <26d56a9fcb2014b99e654127960aa0a48a391e3c
  3. Affected versionversion=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <2b90a8131c83f6f2be69397d2b7d14d217d95d2f
  4. Affected versionversion=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <426edbfc88b22601ea34a441a469092e7b301c52
  5. Affected versionversion=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <6289fc489e94c9beb6be2b502ccc263663733d72
  6. Affected versionversion=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <66ac05e7b0d6bbd1bee9fcf729e20fd4cce86d17
  7. Affected versionversion=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <75f8e2643085db4f7e136fc6b368eb114dd80a64
  8. Affected versionversion=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <e3a55221f4de080cb7a91ba10f01c4f708603f8d

What conditions does exploitation require?

Attack vectorphysical
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.10; version=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <26d56a9fcb2014b99e654127960aa0a48a391e3c; version=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <2b90a8131c83f6f2be69397d2b7d14d217d95d2f; version=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <426edbfc88b22601ea34a441a469092e7b301c52; version=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <6289fc489e94c9beb6be2b502ccc263663733d72; version=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <66ac05e7b0d6bbd1bee9fcf729e20fd4cce86d17; version=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <75f8e2643085db4f7e136fc6b368eb114dd80a64; version=eb2a86ae8c544be0ab04aa8169390c0669bc7148 <e3a55221f4de080cb7a91ba10f01c4f708603f8d

Published CVSS scores

7.0Amazon LinuxCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
5.5Oracle LinuxCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.3SUSECVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
5.4SUSECVSS:4.0/AV:P/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

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

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499Endpoint Denial of Service

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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