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CVE Record

CVE-2023-54222: hte: tegra-194: Fix off by one in tegra_hte_map_to_line_id()

In the Linux kernel, the following vulnerability has been resolved: hte: tegra-194: Fix off by one in tegra_hte_map_to_line_id() The "map_sz" is the number of elements in the "m" array so the > comparison needs to be changed to >= to prevent an out of bounds read.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2023-54222 is a Linux kernel bounds-checking flaw in Tegra-194 HTE code. The published record does not provide CVSS, CWE, exploitation, or business-impact detail. Treat it as a targeted kernel maintenance issue unless you operate Linux systems using this Tegra-194 HTE path.

Executive priority

Low immediate urgency unless your environment includes affected Tegra-194 Linux systems. Because severity and exploitation evidence are incomplete, handle through normal kernel patch governance, with faster action for exposed device fleets.

Technical view

The flaw is an off-by-one check in tegra_hte_map_to_line_id(). The code compared an index with map_sz using >, but map_sz is the number of elements, so equality could permit an out-of-bounds read. Kernel stable commits change the check to >=.

Likely exposure

Exposure appears limited to Linux kernels with the Tegra-194 HTE driver code in affected versions or downstream backports. The bundle does not identify distributions, appliances, or cloud platforms affected.

Exploitation context

CISA KEV is false in the supplied bundle, and no cited source claims active exploitation. The available evidence describes a kernel fix, not a public exploit or attack campaign.

Researcher notes

The source record lacks CVSS, CWE, concrete impact, and exploitability detail. Analysis should stay tied to the off-by-one out-of-bounds read and the referenced Linux stable commits until vendor advisories add context.

Mitigation direction

  • Identify Linux assets using Tegra-194 HTE-related kernel code.
  • Apply vendor or kernel updates containing the referenced stable fixes.
  • Check distribution advisories for backported fixes before relying on version strings.
  • Prioritize embedded or device fleets that use affected Tegra-194 functionality.

Validation and detection

  • Confirm the running kernel source includes the >= bounds check fix.
  • Map installed kernels against vendor advisories or the listed stable commits.
  • Verify affected device classes actually use the Tegra-194 HTE path.
  • Record exceptions where vendors mark downstream kernels as fixed or unaffected.
Prepared
Confidence
medium
Sources
6

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.

ATT&CK lookup starting points

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CVE-2023-54222 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
5Source 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
LinuxLinux09574cca6ad649f84ba804caf63a5aefe0202834, 09574cca6ad649f84ba804caf63a5aefe0202834, 09574cca6ad649f84ba804caf63a5aefe0202834, 09574cca6ad649f84ba804caf63a5aefe0202834unaffected
LinuxLinux5.19, 0, 6.1.28, 6.2.15, 6.3.2, 6.4affected
Weakness

CWE details

No CWE listed

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