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CVE Record

CVE-2023-53448: fbdev: imxfb: Removed unneeded release_mem_region

In the Linux kernel, the following vulnerability has been resolved: fbdev: imxfb: Removed unneeded release_mem_region Remove unnecessary release_mem_region from the error path to prevent mem region from being released twice, which could avoid resource leak or other unexpected issues.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE concerns a Linux kernel framebuffer driver issue. The provided record says an unnecessary memory-region release on an error path could release the same region twice, causing resource leaks or unexpected behavior. No business impact, CVSS score, or exploit evidence is provided.

Executive priority

Handle through normal kernel vulnerability management unless affected embedded or production systems use imxfb. Escalate priority if vendors confirm exposure on supported assets, because kernel error-path bugs can be hard to assess from asset inventory alone.

Technical view

CVE-2023-53448 is in the Linux kernel fbdev imxfb driver. The fix removes an unneeded release_mem_region call from an error path to prevent a double release. The source bundle lists Linux as affected and references stable kernel commits, but provides no CWE, CVSS vector, or exploit details.

Likely exposure

Exposure appears limited to Linux systems running affected kernel versions or commits where the imxfb framebuffer driver is present. The bundle does not identify affected distributions, hardware platforms, default configurations, or whether the vulnerable path is reachable remotely.

Exploitation context

The source bundle marks KEV as false and provides no cited evidence of active exploitation or public weaponization. Treat exploitability as unconfirmed based on the supplied material.

Researcher notes

The available evidence supports a double-release cleanup bug in the imxfb fbdev driver. The record lacks CVSS, CWE, reachability analysis, and distribution mapping, so validation should focus on kernel provenance, driver presence, and whether vendor kernels include the stable commits.

Mitigation direction

  • Check Linux kernel and distribution advisories for CVE-2023-53448 guidance.
  • Update to a kernel build containing the referenced stable fixes.
  • Prioritize assets that use the fbdev imxfb driver.
  • Document exceptions where vendor-fixed kernels are unavailable.

Validation and detection

  • Inventory Linux kernel versions across affected systems.
  • Confirm whether the imxfb driver is built or loaded.
  • Compare installed kernels against vendor advisories and referenced stable commits.
  • Review embedded Linux images separately from server fleets.
Prepared
Confidence
medium
Sources
5

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2023-53448 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
3Timeline events
0ADP providers
4Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxb083c22d51148f3d3028291343196471be5d9f36, b083c22d51148f3d3028291343196471be5d9f36, b083c22d51148f3d3028291343196471be5d9f36unaffected
LinuxLinux6.0, 0, 6.1.42, 6.4.7, 6.5affected
Weakness

CWE details

No CWE listed

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