CVE-2024-26971

Kernel memory disclosure via unterminated frequency tables

Published May 1, 2024 · Updated Aug 5, 2026

Out-of-bounds read in the Qualcomm IPQ5018 clock driver in the Linux kernel allows local users to disclose memory or interrupt service. Several frequency-table arrays omit their empty terminators, so qcom_find_freq() and qcom_find_freq_floor() walk beyond an array when a requested rate exceeds its final entry. Reachability requires the IPQ5018 global clock controller, and the resulting values can disclose kernel data, corrupt clocked I/O, or hang a peripheral or the SoC.

CVSS severity8.4
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

Out-of-bounds read in the Qualcomm IPQ5018 clock driver in the Linux kernel allows local users to disclose memory or interrupt service. Several frequency-table arrays omit their empty terminators, so qcom_find_freq() and qcom_find_freq_floor() walk beyond an array when a requested rate exceeds its final entry. Reachability requires the IPQ5018 global clock controller, and the resulting values can disclose kernel data, corrupt clocked I/O, or hang a peripheral or the SoC.

The record

CVE
CVE-2024-26971
Published
May 1, 2024
Updated
Aug 5, 2026
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-129, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. May 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 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=6.6
  2. Affected versionversion=e3fdbef1bab8e372981c8cc4d8febbaa76c490b0 <50c3acd460551cdf9d8ac6fe0c04f2de0e8e0872
  3. Affected versionversion=e3fdbef1bab8e372981c8cc4d8febbaa76c490b0 <90ad946fff70f312b8d23226afc38c13ddd88c4b
  4. Affected versionversion=e3fdbef1bab8e372981c8cc4d8febbaa76c490b0 <b0cf3d200e8a72b6d28e6e088c062b4a98cb5eaf
  5. Affected versionversion=e3fdbef1bab8e372981c8cc4d8febbaa76c490b0 <c8f4bef0667947b826848db1c45a645f751357c1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.6; version=e3fdbef1bab8e372981c8cc4d8febbaa76c490b0 <50c3acd460551cdf9d8ac6fe0c04f2de0e8e0872; version=e3fdbef1bab8e372981c8cc4d8febbaa76c490b0 <90ad946fff70f312b8d23226afc38c13ddd88c4b; version=e3fdbef1bab8e372981c8cc4d8febbaa76c490b0 <b0cf3d200e8a72b6d28e6e088c062b4a98cb5eaf; version=e3fdbef1bab8e372981c8cc4d8febbaa76c490b0 <c8f4bef0667947b826848db1c45a645f751357c1

Published CVSS scores

8.4Linux kernel CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
5.5NIST NVDCVSS: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-129Improper Validation of Array Index
T1499.004Application or System Exploitation

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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