VulnerabilityPublished 13 Jan 2026Updated 14 Oct 2026

CVE-2025-71064: Linux kernel · net: hns3: using the num_tqps in the vf driver to apply for resources

Affects Linux kernelSource GCVE Database

Not known to be exploited · fixed in 5.15.0-1103.110~20.04.1 : update Linux kernel when convenient.

Data as of 26 Oct 2026, 17:16 UTC

Severity

Medium

Rated by Threat Radar · No CVSS score from NVD or the CNA

EPSS: 0.2% chance of exploitation in 30 days – higher than 14% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in 5.15.0-1103.110~20.04.1, 5.15.0-1110.119~20.04.1, 5.15.0-1103.112~20.04.1 +74

Exploitation evidence

Disclosed: evidence found.
CVE published 13 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

Product	Affected	Fixed in
Ubuntu 25.10linux`pkg:deb/ubuntu/linux?arch=source&distro=questing`Other threats	Affected <6.17.0-22.22	Fixed in 6.17.0-22.22
Ubuntu 25.10linux-aws`pkg:deb/ubuntu/linux-aws?arch=source&distro=questing`Other threats	Affected <6.17.0-1012.12	Fixed in 6.17.0-1012.12
Ubuntu 25.10linux-azure`pkg:deb/ubuntu/linux-azure?arch=source&distro=questing`Other threats	Affected <6.17.0-1013.13	Fixed in 6.17.0-1013.13
Ubuntu 25.10linux-azure-fde`pkg:deb/ubuntu/linux-azure-fde?arch=source&distro=questing`Other threats	Affected 6.17.0-1003.3 – 6.17.0-1017.17 10 affected builds	Fixed in–
Ubuntu 25.10linux-gcp`pkg:deb/ubuntu/linux-gcp?arch=source&distro=questing`Other threats	Affected <6.17.0-1012.12	Fixed in 6.17.0-1012.12
Ubuntu 25.10linux-oracle`pkg:deb/ubuntu/linux-oracle?arch=source&distro=questing`Other threats	Affected <6.17.0-1011.11	Fixed in 6.17.0-1011.11

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

An official patch is available and should be applied to affected systems. The vulnerability is fixed in linux-azure kernel versions 5.15.0-1103.110~20.04.1 and later, 5.15.0-1110.119~20.04.1 and later, 5.15.0-1103.112~20.04.1 and later, 5.15.0-173.183~20.04.1 and later, and 5.15.0-1097.100~20.04.1 and later. Users should update their kernels to these or newer versions to remediate the issue.

Description

A vulnerability in the Linux kernel's hns3 network driver was resolved. The issue involved inconsistent allocation of resources in the virtual function (VF) driver, where some elements remained uninitialized due to mismatched allocation sizes. This could lead to improper initialization in the network driver. The vulnerability affects certain versions of the linux-azure kernel prior to specific patch releases. A patch is available to correct the allocation logic, ensuring all elements are properly initialized.

Impact

The vulnerability could cause uninitialized elements in the network driver's resource allocation, potentially leading to unstable behavior or security issues related to improper initialization. However, no known exploits are reported in the wild. The impact is assessed as medium severity.

Summary

The Linux kernel's hns3 network driver had a vulnerability where the number of transmit queue pairs (num_tqps) used for resource allocation in the virtual function (VF) driver was inconsistently applied. Specifically, hdev->htqp was allocated using hdev->num_tqps, while kinfo->tqp was allocated using kinfo->num_tqps, which was set to the minimum of new_tqps and hdev->num_tqps. This mismatch caused some elements of hdev->htqp to remain uninitialized in the hclgevf_knic_setup() function. The patch fixes this by allocating both hdev->htqp and kinfo->tqp using hdev->num_tqps, ensuring consistent lengths and proper initialization of all elements.

GCVE source: db.gcve.eu
OSV ID: UBUNTU-CVE-2025-71064
Osv Schema Version: 1.7.0
Ecosystems: Ubuntu:Pro:14.04:LTS, Ubuntu:Pro:16.04:LTS, Ubuntu:16.04:LTS, Ubuntu:Pro:18.04:LTS, Ubuntu:18.04:LTS, Ubuntu:Pro:FIPS-updates:18.04:LTS, Ubuntu:Pro:FIPS:18.04:LTS, Ubuntu:Pro:20.04:LTS, Ubuntu:20.04:LTS, Ubuntu:Pro:FIPS-updates:20.04:LTS, Ubuntu:Pro:FIPS:20.04:LTS, Ubuntu:22.04:LTS, Ubuntu:Nvidia-BlueField:22.04:LTS, Ubuntu:Pro:FIPS-preview:22.04:LTS, Ubuntu:Pro:FIPS-updates:22.04:LTS, Ubuntu:Pro:Realtime:22.04:LTS, Ubuntu:24.04:LTS, Ubuntu:Nvidia-BlueField:24.04:LTS, Ubuntu:Pro:FIPS-updates:24.04:LTS, Ubuntu:Pro:Realtime:24.04:LTS, Ubuntu:25.10

References

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Exploitation evidence

What to do

Affected software

Description

AI analysisMachine-generated, updated 15 Sep 2026, 14:34 UTC

Technical details

References

Community reviews

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