LiveActive security incident?Get immediate response
CVE Record

CVE-2022-50137: RDMA/irdma: Fix a window for use-after-free

In the Linux kernel, the following vulnerability has been resolved: RDMA/irdma: Fix a window for use-after-free During a destroy CQ an interrupt may cause processing of a CQE after CQ resources are freed by irdma_cq_free_rsrc(). Fix this by moving the call to irdma_cq_free_rsrc() after the irdma_sc_cleanup_ceqes(), which is called under the cq_lock.

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

Security readout for executives and security teams

Plain-English summary

CVE-2022-50137 is a Linux kernel flaw in the RDMA irdma driver. A timing race during completion queue destruction can allow an interrupt handler to use freed resources. This is mainly relevant to systems using the affected RDMA driver; general Linux systems without that driver enabled may have limited exposure.

Executive priority

Treat this as a targeted kernel maintenance issue, not a broad emergency. Prioritize RDMA-enabled Linux infrastructure and systems using the irdma driver. Patch through normal kernel update channels, with accelerated handling for exposed production RDMA workloads.

Technical view

The issue is a use-after-free window in RDMA/irdma. During destroy CQ, a CQE may be processed after irdma_cq_free_rsrc() frees CQ resources. The kernel fix moves irdma_cq_free_rsrc() after irdma_sc_cleanup_ceqes(), which runs under cq_lock, reducing the race window.

Likely exposure

Exposure is most likely on Linux systems running affected kernel versions with the RDMA irdma driver present and in use. The source bundle lists Linux kernel versions including 5.14, 5.15.61, 5.18.18, 5.19.2, and 6.0 as affected, but distro backports may change practical exposure.

Exploitation context

The provided sources do not show active exploitation, public exploit code, or KEV listing. The bug is a kernel race/use-after-free, so impact depends on whether an attacker can trigger relevant RDMA/irdma completion queue behavior on the target system.

Researcher notes

Evidence is limited to the CVE record and Linux stable commits. No CVSS, CWE, exploit status, or distro-specific package mapping is provided. The fix addresses lock ordering and cleanup timing around CQ destruction and CEQ processing.

Mitigation direction

  • Update to a kernel containing the referenced stable fixes.
  • Use your Linux distribution’s security advisory and patched kernel packages.
  • Prioritize systems using RDMA/irdma or RDMA-capable workloads.
  • If RDMA/irdma is unused, review vendor-supported options to disable it.

Validation and detection

  • Inventory Linux kernel versions across servers and appliances.
  • Identify systems where the irdma driver is present or loaded.
  • Confirm whether distribution kernel packages include the referenced stable commits.
  • Prioritize validation on RDMA hosts and high-availability infrastructure.
  • Monitor vendor advisories for backported fixes and version mapping.
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

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-2022-50137 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
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
LinuxLinuxb48c24c2d710cf34810c555dcef883a3d35a9c08, b48c24c2d710cf34810c555dcef883a3d35a9c08, b48c24c2d710cf34810c555dcef883a3d35a9c08, b48c24c2d710cf34810c555dcef883a3d35a9c08unaffected
LinuxLinux5.14, 0, 5.15.61, 5.18.18, 5.19.2, 6.0affected
Weakness

CWE details

No CWE listed

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