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CVE Record

CVE-2022-48650: scsi: qla2xxx: Fix memory leak in __qlt_24xx_handle_abts()

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix memory leak in __qlt_24xx_handle_abts() Commit 8f394da36a36 ("scsi: qla2xxx: Drop TARGET_SCF_LOOKUP_LUN_FROM_TAG") made the __qlt_24xx_handle_abts() function return early if tcm_qla2xxx_find_cmd_by_tag() didn't find a command, but it missed to clean up the allocated memory for the management command.

MediumCVSS 4.7Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This Linux kernel issue is a memory leak in the qla2xxx SCSI driver path. A local low-privileged user could, under high-complexity conditions, cause availability impact. It does not indicate data theft or integrity compromise in the provided sources.

Executive priority

Treat as a moderate availability risk. It is not a broad remote compromise signal, but kernel memory leaks can affect service reliability on important Linux infrastructure. Patch through standard kernel maintenance, prioritizing systems using the affected driver path.

Technical view

The flaw is in __qlt_24xx_handle_abts(). After commit 8f394da36a36, an early return path skipped cleanup for an allocated management command when tcm_qla2xxx_find_cmd_by_tag() found no command, causing a memory leak. CVSS is 4.7: local, high complexity, low privileges, availability impact only.

Likely exposure

Exposure is mainly Linux systems running affected kernel versions or carrying the vulnerable qla2xxx driver code path. Practical relevance is higher where that SCSI driver functionality is present or loaded. Distro backport status must be checked separately.

Exploitation context

The CVE is not listed as KEV in the supplied bundle, and no cited source states active exploitation. The CVSS vector indicates local access, low privileges, high attack complexity, no user interaction, and availability-only impact.

Researcher notes

Evidence supports a cleanup bug introduced by an earlier qla2xxx change and fixed in stable kernel commits. The bundle does not provide exploit details, affected distribution packages, or confirmed real-world exploitation, so validation should focus on kernel lineage and driver exposure.

Mitigation direction

  • Apply kernel updates containing the referenced stable fixes or distributor backports.
  • Prioritize systems where the qla2xxx driver is present, loaded, or operationally required.
  • Check Linux distribution advisories for package-specific fixed kernel versions.
  • Restrict unnecessary local shell access on systems with affected kernels.
  • Plan reboot or live-patching according to normal kernel maintenance process.

Validation and detection

  • Inventory kernel versions across Linux hosts and compare with vendor advisory status.
  • Check whether qla2xxx-related modules are present or loaded on relevant hosts.
  • Confirm the installed kernel includes one of the referenced stable fix commits or a backport.
  • Review monitoring for unexplained kernel memory pressure on affected systems.
  • Document compensating controls where immediate kernel update is delayed.
Prepared
Confidence
high
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-2022-48650 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
4.7 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

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.

1CVSS vectors
3Timeline events
2ADP providers
4Source links

SSVC decision data

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

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
4.7CVSS 3.1MediumCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H13.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

4.7Medium
CVSS 3.1 vector shape for CVE-2022-48650Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

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
cvssV3_1other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux8f394da36a361cbe0e1e8b1d4213e5598c8095ac, 8f394da36a361cbe0e1e8b1d4213e5598c8095ac, 8f394da36a361cbe0e1e8b1d4213e5598c8095acunaffected
LinuxLinux5.11, 0, 5.15.71, 5.19.12, 6.0affected
Weakness

CWE details

No CWE listed

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