CVE-2024-42113

Kernel panic via uninitialized queue-vector count

Published Jul 30, 2024 · Updated May 11, 2026

Use of an uninitialized value in Linux kernel 6.3 allows local users to trigger a kernel panic through the txgbe network driver. On MSI or INTx fallback, wx_set_interrupt_capability leaves wx->num_q_vectors unset before wx_alloc_q_vectors uses it to allocate queue vectors. The crash path requires compatible txgbe hardware and MSI or INTx fallback, and its bounded consequence is interruption of the host system.

CVSS severity5.5
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use of an uninitialized value in Linux kernel 6.3 allows local users to trigger a kernel panic through the txgbe network driver. On MSI or INTx fallback, wx_set_interrupt_capability leaves wx->num_q_vectors unset before wx_alloc_q_vectors uses it to allocate queue vectors. The crash path requires compatible txgbe hardware and MSI or INTx fallback, and its bounded consequence is interruption of the host system.

The record

CVE
CVE-2024-42113
Published
Jul 30, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-908, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 30, 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=3f703186113fac0f3c965204b2cbb22a03322e2c <7c36711a2cd8059c2d24f5e5c1d76e8ea2d5613c
  2. Affected versionversion=3f703186113fac0f3c965204b2cbb22a03322e2c <9edc7a83cd40ac96ff14fe3a17a38f7ace6611df
  3. Affected versionversion=3f703186113fac0f3c965204b2cbb22a03322e2c <c98969226d1fe0c1dd779db8b1c444bc5294fc83
  4. Affected versionversion=6.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=3f703186113fac0f3c965204b2cbb22a03322e2c <7c36711a2cd8059c2d24f5e5c1d76e8ea2d5613c; version=3f703186113fac0f3c965204b2cbb22a03322e2c <9edc7a83cd40ac96ff14fe3a17a38f7ace6611df; version=3f703186113fac0f3c965204b2cbb22a03322e2c <c98969226d1fe0c1dd779db8b1c444bc5294fc83; version=6.3

Published CVSS scores

5.5SUSECVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
5.5NVDCVSS: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-908Use of Uninitialized Resource
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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