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CVE Record

CVE-2022-48776: mtd: parsers: qcom: Fix missing free for pparts in cleanup

In the Linux kernel, the following vulnerability has been resolved: mtd: parsers: qcom: Fix missing free for pparts in cleanup Mtdpart doesn't free pparts when a cleanup function is declared. Add missing free for pparts in cleanup function for smem to fix the leak.

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 memory-leak flaw in Qualcomm-related MTD partition parsing. It is not described as remote code execution or privilege escalation. The business risk is mainly stability and resource exhaustion on systems that use the affected kernel code path.

Executive priority

Handle through normal patch management, with higher priority for embedded Linux or Qualcomm-based systems where kernel stability matters. There is no source-backed evidence of active exploitation in the provided bundle.

Technical view

The Linux kernel qcom SMEM MTD parser did not free `pparts` when cleanup handling was declared. The kernel fix adds the missing free operation in the cleanup function. The provided record lists affected Linux versions including 5.14, 5.15.25, 5.16.11, and 5.17, with stable kernel commits referenced.

Likely exposure

Exposure depends on running an affected Linux kernel and using the qcom SMEM MTD partition parser code path. The sources do not identify specific distributions, devices, or configurations beyond Linux kernel version metadata.

Exploitation context

The bundle does not show CISA KEV listing, active exploitation, public exploit use, or a CVSS score. Treat this as a kernel maintenance and stability issue unless vendor guidance indicates broader impact.

Researcher notes

The public record is narrow: it describes a missing free of `pparts` in cleanup, not attacker prerequisites or impact scoring. Avoid overstating exploitability without vendor or kernel maintainer context.

Mitigation direction

  • Check your kernel vendor advisory for CVE-2022-48776 applicability.
  • Update to a kernel build containing the referenced stable fixes.
  • Prioritize embedded or Qualcomm-platform assets using MTD partition parsing.
  • Track distribution backports rather than relying only on upstream version numbers.

Validation and detection

  • Inventory Linux kernel versions on potentially affected assets.
  • Confirm whether the qcom SMEM MTD parser is built or used.
  • Map installed kernels against vendor fixed-package advisories.
  • Review change logs for the referenced upstream stable commits.
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.

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CVE-2022-48776 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
2ADP 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

CVECVE Program Container
CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux10f3b4d79958d6f9f71588c6fa862159c83fa80f, 10f3b4d79958d6f9f71588c6fa862159c83fa80f, 10f3b4d79958d6f9f71588c6fa862159c83fa80f, af86e36c583300e10a52e3b3348c88a69fc0c552, 765beb5ef9da4fecb50210decd55dd24187a0698, 5.12.17, 5.13.2unaffected
LinuxLinux5.14, 0, 5.15.25, 5.16.11, 5.17affected
Weakness

CWE details

No CWE listed

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