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CVE Record

CVE-2022-48880: platform/surface: aggregator: Add missing call to ssam_request_sync_free()

In the Linux kernel, the following vulnerability has been resolved: platform/surface: aggregator: Add missing call to ssam_request_sync_free() Although rare, ssam_request_sync_init() can fail. In that case, the request should be freed via ssam_request_sync_free(). Currently it is leaked instead. Fix this.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel resource leak in the Microsoft Surface Aggregator driver. A rare initialization failure path did not free a request object. The direct business risk appears low, but affected Surface/Linux systems should receive normal kernel maintenance updates.

Executive priority

Handle through routine kernel patching unless your environment has significant Linux-on-Surface usage or strict reliability requirements. There is no sourced evidence of active exploitation or broad urgent exposure.

Technical view

The issue is in platform/surface aggregator code: if ssam_request_sync_init() fails, the request is not released with ssam_request_sync_free(). The CVE describes a leak on an uncommon failure path, with stable kernel commits provided as fixes.

Likely exposure

Exposure is likely limited to Linux systems running affected kernel versions with the Surface Aggregator platform driver present. The provided data names Linux 5.12, 5.15.89, 6.1.7, and 6.2, but package-level distro backports require verification.

Exploitation context

The provided sources do not report active exploitation, and the CVE is not marked KEV. The described condition is a rare failure-path leak, not a demonstrated remote attack path.

Researcher notes

The bundle provides a narrow kernel fix description but no CVSS, CWE, exploit details, or distro advisory context. Treat affected-version interpretation carefully because downstream kernels may backport the fix without changing upstream version numbers.

Mitigation direction

  • Update affected Linux kernels through normal vendor or distribution channels.
  • Verify kernel packages include one of the referenced stable fixes or equivalent backport.
  • Prioritize Linux-on-Surface fleets and systems where kernel reliability matters.
  • If no package is available, follow Linux distribution or vendor guidance.

Validation and detection

  • Inventory hosts running Linux kernels with Surface Aggregator support.
  • Check running kernel versions against distribution security advisories and package changelogs.
  • Confirm the fix references ssam_request_sync_free() on the init-failure path.
  • Review vulnerability scanner findings for distro-specific CVE mapping accuracy.
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-2022-48880 mapping review

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

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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
1ADP providers
4Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: partial

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.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxc167b9c7e3d6131b4a4865c112a3dbc86d2e997d, c167b9c7e3d6131b4a4865c112a3dbc86d2e997d, c167b9c7e3d6131b4a4865c112a3dbc86d2e997dunaffected
LinuxLinux5.12, 0, 5.15.89, 6.1.7, 6.2affected
Weakness

CWE details

No CWE listed

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