CVE-2023-54049

Kernel fault via unchecked channel-name allocation

Published Dec 24, 2025 · Updated Dec 24, 2025

NULL-pointer dereference in the Linux Qualcomm GLINK RPMsg driver allows attackers to trigger a kernel fault during channel allocation. The qcom_glink_alloc_channel function stores the result of kstrdup in channel->name and previously continued without checking for allocation failure. Reachability requires an active Qualcomm GLINK RPMsg path and a failed channel-name allocation; public records do not establish attacker control or whether the fault becomes an oops or panic.

CVSS severityUnavailable
Unscored
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

NULL-pointer dereference in the Linux Qualcomm GLINK RPMsg driver allows attackers to trigger a kernel fault during channel allocation. The qcom_glink_alloc_channel function stores the result of kstrdup in channel->name and previously continued without checking for allocation failure. Reachability requires an active Qualcomm GLINK RPMsg path and a failed channel-name allocation; public records do not establish attacker control or whether the fault becomes an oops or panic.

The record

CVE
CVE-2023-54049
Published
Dec 24, 2025
Updated
Dec 24, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
T1499.004
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Dec 24, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 24, 2025Record 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=4.13
  2. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <13928a837e0f014dac0322dd9f8a67c486e7f232
  3. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <174cf8853857c190a3c4f1f1d2d06cfd095fe859
  4. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <5197498c902502127a47abda5359dd7f1d41946f
  5. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <71ac2ffd7f80fdd350486f6645dc48456e55a59b
  6. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <abd740db896b3c588dced175af98b95852c1854b
  7. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <b5c9ee8296a3760760c7b5d2e305f91412adc795
  8. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <cae0787e408c30a575760a531ccb69a6b48bbfaf
  9. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <e3734a9558afac91df3c655a6f2376b9d14933b7
  10. Affected versionversion=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <efa7f31669f04084ed5996ed467ba529f4c90467

What conditions does exploitation require?

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

What is affected?

The Linux Kernel Organization · Linuxversion=4.13; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <13928a837e0f014dac0322dd9f8a67c486e7f232; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <174cf8853857c190a3c4f1f1d2d06cfd095fe859; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <5197498c902502127a47abda5359dd7f1d41946f; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <71ac2ffd7f80fdd350486f6645dc48456e55a59b; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <abd740db896b3c588dced175af98b95852c1854b; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <b5c9ee8296a3760760c7b5d2e305f91412adc795; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <cae0787e408c30a575760a531ccb69a6b48bbfaf; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <e3734a9558afac91df3c655a6f2376b9d14933b7; version=b4f8e52b89f69f5563ac4cb9ffdacc4418917af1 <efa7f31669f04084ed5996ed467ba529f4c90467

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

T1499.004Application or System Exploitation

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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