CVE-2025-38053

Kernel crash via reset-time null vport dereference

Published Jun 18, 2025 · Updated May 11, 2026

NULL pointer dereference in the idpf driver in Linux allows local users to crash the kernel during packet transmission after a vport reset. idpf_features_check follows the netdev private vport pointer to read an adapter-stored maximum header length even after reset has released every vport and set that pointer to NULL. Triggering the fault requires the idpf driver, a concurrent vport reset, and locally initiated packet transmission; the documented consequence is a kernel Oops and service interruption.

CVSS severity5.5
Medium
EPSS probability0.18%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

NULL pointer dereference in the idpf driver in Linux allows local users to crash the kernel during packet transmission after a vport reset. idpf_features_check follows the netdev private vport pointer to read an adapter-stored maximum header length even after reset has released every vport and set that pointer to NULL. Triggering the fault requires the idpf driver, a concurrent vport reset, and locally initiated packet transmission; the documented consequence is a kernel Oops and service interruption.

The record

CVE
CVE-2025-38053
Published
Jun 18, 2025
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 18, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 2026Record 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=6.7
  2. Affected versionversion=a251eee62133774cf35ff829041377e721ef9c8c <2dabe349f7882ff1407a784d54d8541909329088
  3. Affected versionversion=a251eee62133774cf35ff829041377e721ef9c8c <bf1e751c5a5611aa037ab44cca955c141eb68dcc
  4. Affected versionversion=a251eee62133774cf35ff829041377e721ef9c8c <f6f5e9c8cb680c3cb9771fd9fa114319cbc4f514

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.7; version=a251eee62133774cf35ff829041377e721ef9c8c <2dabe349f7882ff1407a784d54d8541909329088; version=a251eee62133774cf35ff829041377e721ef9c8c <bf1e751c5a5611aa037ab44cca955c141eb68dcc; version=a251eee62133774cf35ff829041377e721ef9c8c <f6f5e9c8cb680c3cb9771fd9fa114319cbc4f514

Published CVSS scores

5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

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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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
T1499.004Application or System Exploitation

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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