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VulnerabilityPublished Updated

CVE-2025-68265: Linux kernel · nvme: fix admin request_queue lifetime

Affects Linux kernelSource CVE Database V5

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Not known to be exploited · CVSS 7.8 High · fixed in e8061d02b49c5c901980f58d91e96580e9a14acf : patch Linux kernel soon.

Data as of 10 Nov 2026, 13:17 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (Linux)CVSS 3.17.8
CISA SSVC
Exploitation
No evidence of active exploitation and no public proof of concept
Automatable
Attackers cannot reliably automate steps 1–4 of the kill chain
Technical impact
Total control over the software or total information disclosure

CISA SSVC assessment, 2026-10-15.

Patch
Available – fixed in e8061d02b49c5c901980f58d91e96580e9a14acf, e7dac681790556c131854b97551337aa8042215b, a505f0ba36ab24176c300d7ff56aff85c2977e6c +2
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 16 Dec 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 10 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • ≥ fe60e8c534118a288cd251a59d747cbf5c03e160, < e8061d02b49c5c901980f58d91e96580e9a14acf
Fixed in
  • e8061d02b49c5c901980f58d91e96580e9a14acf
LinuxLinuxAffected
  • ≥ fe60e8c534118a288cd251a59d747cbf5c03e160, < e7dac681790556c131854b97551337aa8042215b
Fixed in
  • e7dac681790556c131854b97551337aa8042215b
LinuxLinuxAffected
  • ≥ fe60e8c534118a288cd251a59d747cbf5c03e160, < a505f0ba36ab24176c300d7ff56aff85c2977e6c
Fixed in
  • a505f0ba36ab24176c300d7ff56aff85c2977e6c
LinuxLinuxAffected
  • ≥ fe60e8c534118a288cd251a59d747cbf5c03e160, < 4896491c497226022626c3acc46044fd182f943c
Fixed in
  • 4896491c497226022626c3acc46044fd182f943c
LinuxLinuxAffected
  • ≥ fe60e8c534118a288cd251a59d747cbf5c03e160, < 03b3bcd319b3ab5182bc9aaa0421351572c78ac0
Fixed in
  • 03b3bcd319b3ab5182bc9aaa0421351572c78ac0
LinuxLinuxAffected
  • =6.1
Fixed in–

AI-suggested

A fix is available and has been applied in the Linux kernel. Users and administrators should update to the fixed kernel versions containing the referenced commits to remediate this vulnerability. No additional mitigation steps are required beyond applying the official patch.

Description

CVE-2025-68265 is a use-after-free vulnerability in the Linux kernel's NVMe driver related to the admin request_queue lifetime. The issue arises because namespaces can access the controller's admin request_queue, and stale references may exist after the controller is torn down. This flaw can lead to a kernel crash or potential escalation of privileges. The vulnerability has been fixed by ensuring the admin request_queue remains active until all controller references are released.

References

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