CVE-2023-53448

Service interruption via double memory-region release

Published Oct 1, 2025 · Updated Oct 1, 2025

Resource-management flaw in Linux 6.0 through 6.1.41 and 6.2 through 6.4.6 allows local users to interrupt service. The imxfb_probe error path calls release_mem_region after devm_ioremap_resource has already arranged managed cleanup, releasing the same memory region twice. Reachability requires the i.MX framebuffer driver and a probe failure after register mapping; public records bound the consequence to resource leakage or other unexpected availability effects.

CVSS severity5.5
Medium
EPSS probability0.15%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Resource-management flaw in Linux 6.0 through 6.1.41 and 6.2 through 6.4.6 allows local users to interrupt service. The imxfb_probe error path calls release_mem_region after devm_ioremap_resource has already arranged managed cleanup, releasing the same memory region twice. Reachability requires the i.MX framebuffer driver and a probe failure after register mapping; public records bound the consequence to resource leakage or other unexpected availability effects.

The record

CVE
CVE-2023-53448
Published
Oct 1, 2025
Updated
Oct 1, 2025
Vendor
The Linux Kernel Organization
Product
Linux
Classifications
CWE-617, T1499.004
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=6.0
  2. Affected versionversion=b083c22d51148f3d3028291343196471be5d9f36 <38282a92c30422836d49e519bd109237f86a0888
  3. Affected versionversion=b083c22d51148f3d3028291343196471be5d9f36 <45fcc058a75bf5d65cf4c32da44a252fbe873cd4
  4. Affected versionversion=b083c22d51148f3d3028291343196471be5d9f36 <6aa851f6276fa08cd59b044bc2b803c49edf58a2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

The Linux Kernel Organization · Linuxversion=6.0; version=b083c22d51148f3d3028291343196471be5d9f36 <38282a92c30422836d49e519bd109237f86a0888; version=b083c22d51148f3d3028291343196471be5d9f36 <45fcc058a75bf5d65cf4c32da44a252fbe873cd4; version=b083c22d51148f3d3028291343196471be5d9f36 <6aa851f6276fa08cd59b044bc2b803c49edf58a2

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

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-617Reachable Assertion
T1499.004Endpoint Denial of Service: Application 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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