CVE-2024-50274

Kernel fault via released idpf vport access

Published Nov 19, 2024 · Updated May 11, 2026

Use-after-free in Linux 6.7 through 6.11.7 and 6.12 release candidates allows local users to trigger a kernel fault via idpf queries. After a failed device reset releases the vport lock and resources, idpf_get_link_ksettings dereferences the released vport pointer while reading link settings. Reachability requires removal or reboot of the device control plane, a failed reset, and a concurrent link-settings request; the documented result is a kernel call trace.

CVSS severity7.8
High
EPSS probability0.23%
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 Linux 6.7 through 6.11.7 and 6.12 release candidates allows local users to trigger a kernel fault via idpf queries. After a failed device reset releases the vport lock and resources, idpf_get_link_ksettings dereferences the released vport pointer while reading link settings. Reachability requires removal or reboot of the device control plane, a failed reset, and a concurrent link-settings request; the documented result is a kernel call trace.

The record

CVE
CVE-2024-50274
Published
Nov 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-416, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 19, 2024CVE 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=02cbfba1add5bd9088c7d14c6b93b77a6ea8f3bb <81d2fb4c7c18a3b36ba3e00b9d5b753107472d75
  2. Affected versionversion=02cbfba1add5bd9088c7d14c6b93b77a6ea8f3bb <fa4d906ad0fb63a980a1d586a061c78ea1a345ba
  3. Affected versionversion=6.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=02cbfba1add5bd9088c7d14c6b93b77a6ea8f3bb <81d2fb4c7c18a3b36ba3e00b9d5b753107472d75; version=02cbfba1add5bd9088c7d14c6b93b77a6ea8f3bb <fa4d906ad0fb63a980a1d586a061c78ea1a345ba; version=6.7

Published CVSS scores

7.8UbuntuCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
7.8CISACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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-416Use After Free
T1499Endpoint Denial of Service

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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