CVE-2025-68265: Linux kernel · nvme: fix admin request_queue lifetime
Affects Linux kernelSource CVE Database V5
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
Thin evidence
One scorer or none| CNA (Linux) | CVSS 3.1 | 7.8 |
|---|
- 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:HExploitation evidence
Disclosed: evidence found.
CVE published 16 Dec 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 10 Nov 2026.
What to do
Upgrade to a fixed release listed under Affected software.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| Fixed in
|
| LinuxLinux | Affected
| 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
- git.kernel.org/stable/c/4896491c497226022626c3acc46044fd182f943c (opens in a new tab)
- git.kernel.org/stable/c/a505f0ba36ab24176c300d7ff56aff85c2977e6c (opens in a new tab)
- git.kernel.org/stable/c/e8061d02b49c5c901980f58d91e96580e9a14acf (opens in a new tab)
- git.kernel.org/stable/c/e7dac681790556c131854b97551337aa8042215b (opens in a new tab)
- git.kernel.org/stable/c/03b3bcd319b3ab5182bc9aaa0421351572c78ac0 (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-082556.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-019113.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-457936.html (opens in a new tab)
- cert-portal.siemens.com/productcert/html/ssa-784472.html (opens in a new tab)