CVE-2024-53049

Kernel warning via unwrapped KUnit allocation call

Published Nov 19, 2024 · Updated May 11, 2026

Denial of service in the SLUB KUnit tests in Linux 6.11 allows local users to trigger a kernel warning by loading slub_kunit. The test calls __kmalloc_cache_noprof directly without the alloc_hook wrapper, leaving current->alloc_tag null when alloc_tag_add_check runs. Reaching the condition requires permission to load the test module, and the published trace shows a warning rather than a kernel crash or data loss.

CVSS severity5.5
Medium
EPSS probability0.20%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in the SLUB KUnit tests in Linux 6.11 allows local users to trigger a kernel warning by loading slub_kunit. The test calls __kmalloc_cache_noprof directly without the alloc_hook wrapper, leaving current->alloc_tag null when alloc_tag_add_check runs. Reaching the condition requires permission to load the test module, and the published trace shows a warning rather than a kernel crash or data loss.

The record

CVE
CVE-2024-53049
Published
Nov 19, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
Unavailable
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=6.11
  2. Affected versionversion=a0a44d9175b349df2462089140fb7f292100bd7c <2b059d0d1e624adc6e69a754bc48057f8bf459dc
  3. Affected versionversion=a0a44d9175b349df2462089140fb7f292100bd7c <79aea7dfd98fbbf282d1408fc21849fc9a677768

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.11; version=a0a44d9175b349df2462089140fb7f292100bd7c <2b059d0d1e624adc6e69a754bc48057f8bf459dc; version=a0a44d9175b349df2462089140fb7f292100bd7c <79aea7dfd98fbbf282d1408fc21849fc9a677768

Published CVSS scores

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

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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

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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