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CVE Record

CVE-2022-50060: octeontx2-af: Fix mcam entry resource leak

In the Linux kernel, the following vulnerability has been resolved: octeontx2-af: Fix mcam entry resource leak The teardown sequence in FLR handler returns if no NIX LF is attached to PF/VF because it indicates that graceful shutdown of resources already happened. But there is a chance of all allocated MCAM entries not being freed by PF/VF. Hence free mcam entries even in case of detached LF.

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 cleanup bug in the octeontx2-af driver. Under a specific teardown path, allocated MCAM entries may not be released. The public record does not provide a CVSS score, confirmed impact beyond resource leakage, or evidence of active exploitation.

Executive priority

Treat this as a targeted kernel maintenance item, not an emergency, unless your environment relies on affected OcteonTX2 networking hardware. Absence of severity scoring and exploitation evidence lowers urgency, but kernel resource leaks can still affect reliability.

Technical view

The FLR handler returned early when no NIX LF was attached to a PF/VF, assuming graceful resource shutdown had already occurred. The fix ensures MCAM entries are freed even when the LF is detached, preventing a resource leak in octeontx2-af teardown handling.

Likely exposure

Exposure appears limited to Linux systems running affected kernels with relevant octeontx2-af functionality. The source lists Linux kernel versions as affected and stable kernel commits as fixes, but does not identify distributions, appliances, or downstream package versions.

Exploitation context

The source bundle does not report active exploitation, and KEV is false. It also does not describe attacker prerequisites, triggerability, privilege requirements, or exploit impact beyond the resource leak fixed by the kernel patches.

Researcher notes

The evidence is narrow and code-level. Analysis should focus on FLR teardown paths, PF/VF lifecycle handling, NIX LF detached states, and MCAM allocation cleanup. Do not assume broader impact without driver-specific validation.

Mitigation direction

  • Update to a kernel containing the referenced stable fixes.
  • Check Linux distribution advisories for packaged kernel backports.
  • Prioritize systems using octeontx2-af or related Marvell OcteonTX2 hardware.
  • Track vendor guidance if running customized or appliance kernels.

Validation and detection

  • Inventory systems for affected Linux kernel versions.
  • Confirm whether octeontx2-af support is present or in use.
  • Verify kernel changelogs include the referenced stable commits.
  • Retest after kernel update or vendor backport installation.
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

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ATT&CK lookup starting points

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CVE-2022-50060 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
LinuxLinuxc554f9c1574e022821260b24b043a4277e8ec5d8, c554f9c1574e022821260b24b043a4277e8ec5d8, c554f9c1574e022821260b24b043a4277e8ec5d8unaffected
LinuxLinux5.0, 0, 5.15.63, 5.19.4, 6.0affected
Weakness

CWE details

No CWE listed

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