CVE-2023-53505

Service interruption via EMC error-path memory leak

Published Oct 1, 2025 · Updated Oct 1, 2025

Memory leakage in the Tegra124 EMC clock driver in Linux 4.2 through 6.4.3 allows local users to interrupt service during initialization. The load_timings_from_dt error path fails to free its allocated timing table, and tegra_clk_register_emc also returns without freeing the Tegra EMC object. The condition requires a Tegra124 system to encounter a timing-load failure during EMC clock setup; repeated failures can exhaust kernel memory and interrupt service.

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

What happened

Memory leakage in the Tegra124 EMC clock driver in Linux 4.2 through 6.4.3 allows local users to interrupt service during initialization. The load_timings_from_dt error path fails to free its allocated timing table, and tegra_clk_register_emc also returns without freeing the Tegra EMC object. The condition requires a Tegra124 system to encounter a timing-load failure during EMC clock setup; repeated failures can exhaust kernel memory and interrupt service.

The record

CVE
CVE-2023-53505
Published
Oct 1, 2025
Updated
Oct 1, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-401, T1499.001
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 1, 2025CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <404e9f741acfb188212f7142d91e247630dd77cc
  2. Affected versionversion=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <4e59e355f9fcccd9edf65d09f769bb4c163a1c36
  3. Affected versionversion=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <53a06e5924c0d43c11379a08c5a78529c3e61595
  4. Affected versionversion=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <801c8341f7aff07c494b53e627970b72635af5d3
  5. Affected versionversion=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <96bafece6ff380138896f009141fd7337070e680
  6. Affected versionversion=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <e969c144d908ea9387442659f103d374c8ff682d
  7. Affected versionversion=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <fd1c117bb5d7e033bf1aa25ac97ff421f81a1199
  8. Affected versionversion=4.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <404e9f741acfb188212f7142d91e247630dd77cc; version=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <4e59e355f9fcccd9edf65d09f769bb4c163a1c36; version=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <53a06e5924c0d43c11379a08c5a78529c3e61595; version=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <801c8341f7aff07c494b53e627970b72635af5d3; version=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <96bafece6ff380138896f009141fd7337070e680; version=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <e969c144d908ea9387442659f103d374c8ff682d; version=2db04f16b589c6c96bd07df3f1ef8558bfdb6810 <fd1c117bb5d7e033bf1aa25ac97ff421f81a1199; version=4.2

Published CVSS scores

5.5NIST National Vulnerability DatabaseCVSS: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-401Missing Release of Memory after Effective Lifetime
T1499.001OS Exhaustion Flood

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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