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CVE Record

CVE-2023-54106: net/mlx5: fix potential memory leak in mlx5e_init_rep_rx

In the Linux kernel, the following vulnerability has been resolved: net/mlx5: fix potential memory leak in mlx5e_init_rep_rx The memory pointed to by the priv->rx_res pointer is not freed in the error path of mlx5e_init_rep_rx, which can lead to a memory leak. Fix by freeing the memory in the error path, thereby making the error path identical to mlx5e_cleanup_rep_rx().

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 is a Linux kernel memory leak in the mlx5 networking driver cleanup path. If an initialization error occurs, allocated memory may not be freed. The public record does not provide CVSS, impact scale, or active exploitation evidence, so urgency should be based on kernel exposure and vendor update availability.

Executive priority

Treat as a routine kernel maintenance item unless critical systems use mlx5 networking and show stability concerns. There is no source-backed evidence of active exploitation, but kernel memory leaks can affect availability over time.

Technical view

In mlx5e_init_rep_rx, priv->rx_res was not freed on an error path. The kernel fix makes that error path match mlx5e_cleanup_rep_rx by freeing the allocation. The sources identify affected Linux kernel versions and stable commits but do not describe exploit prerequisites or security impact beyond memory leak.

Likely exposure

Likely limited to Linux systems running affected kernel versions with the net/mlx5 driver path in use. Exposure is most relevant for hosts using mlx5 networking and representor RX functionality. The sources do not establish a remote attack surface.

Exploitation context

The source bundle marks KEV as false and provides no cited evidence of active exploitation. The issue is described as a potential memory leak triggered on an error path, not as code execution, privilege escalation, or data disclosure.

Researcher notes

Evidence is narrow: the record describes a missed free of priv->rx_res in mlx5e_init_rep_rx and links three stable commits. No CWE, CVSS vector, exploit narrative, or distro-specific fixed package data is provided in the bundle.

Mitigation direction

  • Update to a kernel containing the referenced stable fixes.
  • Check Linux distribution advisories for backported fixes.
  • Prioritize systems using mlx5 networking features.
  • If no package fix exists, follow vendor kernel guidance.
  • Track memory-pressure symptoms on affected hosts until patched.

Validation and detection

  • Inventory Linux kernel versions against the affected ranges.
  • Confirm whether mlx5 driver functionality is enabled or in use.
  • Verify kernel package changelogs include this CVE or commit fix.
  • Confirm patched systems include one referenced stable commit.
  • Document any systems awaiting vendor guidance.
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.

ATT&CK lookup starting points

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CVE-2023-54106 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
LinuxLinuxaf8bbf7300686961f74e72e2dc10a76672603cb3, af8bbf7300686961f74e72e2dc10a76672603cb3, af8bbf7300686961f74e72e2dc10a76672603cb3unaffected
LinuxLinux6.0, 0, 6.1.45, 6.4.10, 6.5affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.