LiveActive security incident?Get immediate response
CVE Record

CVE-2023-54003: RDMA/core: Fix GID entry ref leak when create_ah fails

In the Linux kernel, the following vulnerability has been resolved: RDMA/core: Fix GID entry ref leak when create_ah fails If AH create request fails, release sgid_attr to avoid GID entry referrence leak reported while releasing GID table

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue is a resource reference leak in RDMA handling. When creating an address handle fails, the kernel may not release a GID entry reference. The public sources do not provide CVSS, confirmed impact severity, or evidence of exploitation.

Executive priority

Handle through normal kernel patch management unless RDMA is critical in your environment. Escalate priority for high-value systems using RDMA because the impact details are incomplete.

Technical view

RDMA/core fails to release sgid_attr when create_ah fails, causing a GID entry reference leak that can be reported during GID table release. The CVE lists affected Linux kernel lines and upstream stable commits, but does not describe exploitability, privileges, or impact beyond the leak.

Likely exposure

Exposure appears limited to Linux systems running affected kernel versions with RDMA/core functionality in use. The source bundle does not identify specific distributions, default configurations, or whether remote triggering is possible.

Exploitation context

CISA KEV status is false, and the provided sources do not cite active exploitation, public exploit code, or a weaponized attack path. Treat exploitation status as unconfirmed.

Researcher notes

The evidence supports a kernel RDMA reference leak on AH creation failure. Missing data includes CVSS, CWE, prerequisites, privilege requirements, reachability, and practical impact. Avoid assuming denial of service or remote exploitability without vendor or upstream confirmation.

Mitigation direction

  • Review Linux vendor advisories for CVE-2023-54003 and apply fixed kernel updates.
  • Prioritize systems using RDMA hardware, drivers, or RDMA-dependent workloads.
  • Track the listed upstream stable commits for backport status in your kernel package.
  • If patching is delayed, follow vendor guidance on reducing RDMA exposure.

Validation and detection

  • Inventory Linux kernel versions across hosts and compare against affected versions.
  • Identify hosts with RDMA hardware, drivers, or RDMA services enabled.
  • Confirm whether your vendor kernel includes the referenced stable fix commits.
  • Review kernel logs for RDMA or GID table reference leak messages.
Prepared
Confidence
medium
Sources
8

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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2023-54003 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
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
7Source 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
LinuxLinux1a1f460ff151710289c2f8d4badd8b603b87d610, 1a1f460ff151710289c2f8d4badd8b603b87d610, 1a1f460ff151710289c2f8d4badd8b603b87d610, 1a1f460ff151710289c2f8d4badd8b603b87d610, 1a1f460ff151710289c2f8d4badd8b603b87d610, 1a1f460ff151710289c2f8d4badd8b603b87d610unaffected
LinuxLinux4.19, 0, 5.4.241, 5.10.178, 5.15.108, 6.1.25, 6.2.12, 6.3affected
Weakness

CWE details

No CWE listed

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