CVE-2026-80613

Kernel memory corruption via leaked NAPI structure

Published Aug 28, 2026 · Updated Aug 28, 2026

Use-after-free in the veth XDP enable error path in Linux 5.11 allows attackers to corrupt kernel memory during device teardown. The rollback loop skips deleting the failed queue's NAPI association after adding its NAPI object, leaving freed queue storage linked on the device NAPI list. Triggering the fault requires an XDP receive-queue registration failure followed by veth destruction; the record establishes memory corruption but no further attacker-controlled consequence.

CVSS severityUnavailable
Unscored
EPSS probability0.13%
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 veth XDP enable error path in Linux 5.11 allows attackers to corrupt kernel memory during device teardown. The rollback loop skips deleting the failed queue's NAPI association after adding its NAPI object, leaving freed queue storage linked on the device NAPI list. Triggering the fault requires an XDP receive-queue registration failure followed by veth destruction; the record establishes memory corruption but no further attacker-controlled consequence.

The record

CVE
CVE-2026-80613
Published
Aug 28, 2026
Updated
Aug 28, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Aug 28, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 28, 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=5.11
  2. Affected versionversion=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <4559770b2a241344d762719e674241fcc8528f02
  3. Affected versionversion=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <4bd2e5dbe62334aae1182d0f0d260f334a49d739
  4. Affected versionversion=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <6739027cb72da26890edd424c77080d187b2a92e
  5. Affected versionversion=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <83090f5e7b54721d71875a6c224d2490b9e73050
  6. Affected versionversion=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <a9e6707322ef215d39d4655b176c094f45f0ab52
  7. Affected versionversion=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <d3eb258ad398cc9402bab3a5e730cd7c5b34efad
  8. Affected versionversion=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <fc51373345e7e6ea73da2650cb497309c50b077a

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

The Linux Kernel Organization · Linuxversion=5.11; version=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <4559770b2a241344d762719e674241fcc8528f02; version=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <4bd2e5dbe62334aae1182d0f0d260f334a49d739; version=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <6739027cb72da26890edd424c77080d187b2a92e; version=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <83090f5e7b54721d71875a6c224d2490b9e73050; version=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <a9e6707322ef215d39d4655b176c094f45f0ab52; version=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <d3eb258ad398cc9402bab3a5e730cd7c5b34efad; version=b02e5a0ebb172c8276cea3151942aac681f7a4a6 <fc51373345e7e6ea73da2650cb497309c50b077a

Published CVSS scores

No CVSS assessment is available in this record.

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

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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)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

No sourced classifications are available.

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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