CVE-2024-53154

Kernel crash via unchecked clock-name allocation

Published Dec 24, 2024 · Updated May 11, 2026

NULL pointer dereference in the Linux Apple NCO clock driver allows local users to crash the kernel during device probing. During applnco_probe, devm_kasprintf can return NULL for the per-channel clock name, but the driver passes that pointer into clock registration without checking it. Reachability requires a Linux system using the NCO block on an Apple SoC and a failed kernel allocation; the consequence is loss of availability without data disclosure or modification.

CVSS severity5.5
Medium
EPSS probability0.21%
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 Linux Apple NCO clock driver allows local users to crash the kernel during device probing. During applnco_probe, devm_kasprintf can return NULL for the per-channel clock name, but the driver passes that pointer into clock registration without checking it. Reachability requires a Linux system using the NCO block on an Apple SoC and a failed kernel allocation; the consequence is loss of availability without data disclosure or modification.

The record

CVE
CVE-2024-53154
Published
Dec 24, 2024
Updated
May 11, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-476, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 24, 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=5.18
  2. Affected versionversion=6641057d5dba87338780cf3e0d0ae8389ef1125c <066c14619e8379c1bafbbf8196fd38eac303472b
  3. Affected versionversion=6641057d5dba87338780cf3e0d0ae8389ef1125c <534e02f83889ccef5fe6beb46e773ab9d4ae1655
  4. Affected versionversion=6641057d5dba87338780cf3e0d0ae8389ef1125c <72ea9a7e9e260aa39f9d1c9254cf92adfb05c4f5
  5. Affected versionversion=6641057d5dba87338780cf3e0d0ae8389ef1125c <969c765e2b508cca9099d246c010a1e48dcfd089
  6. Affected versionversion=6641057d5dba87338780cf3e0d0ae8389ef1125c <9a5905b725739af6a105f9e564e7c80d69969d2b

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=5.18; version=6641057d5dba87338780cf3e0d0ae8389ef1125c <066c14619e8379c1bafbbf8196fd38eac303472b; version=6641057d5dba87338780cf3e0d0ae8389ef1125c <534e02f83889ccef5fe6beb46e773ab9d4ae1655; version=6641057d5dba87338780cf3e0d0ae8389ef1125c <72ea9a7e9e260aa39f9d1c9254cf92adfb05c4f5; version=6641057d5dba87338780cf3e0d0ae8389ef1125c <969c765e2b508cca9099d246c010a1e48dcfd089; version=6641057d5dba87338780cf3e0d0ae8389ef1125c <9a5905b725739af6a105f9e564e7c80d69969d2b

Published CVSS scores

6.8SUSECVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
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

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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
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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