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CVE Record

CVE-2024-53093: nvme-multipath: defer partition scanning

In the Linux kernel, the following vulnerability has been resolved: nvme-multipath: defer partition scanning We need to suppress the partition scan from occuring within the controller's scan_work context. If a path error occurs here, the IO will wait until a path becomes available or all paths are torn down, but that action also occurs within scan_work, so it would deadlock. Defer the partion scan to a different context that does not block scan_work.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-53093 is a Linux kernel availability flaw in NVMe multipath handling. Under a path error during partition scanning, kernel work can deadlock, potentially making storage access stall or the system become unavailable. It does not indicate data theft or tampering in the provided sources.

Executive priority

Handle through normal kernel patch management, with higher priority for production systems dependent on NVMe multipath storage. Business risk is service disruption, not known data compromise. No source in the bundle supports emergency response for active exploitation.

Technical view

The flaw is in nvme-multipath partition scanning inside the controller scan_work context. If a path error occurs there, I/O can wait for path recovery or teardown, which also depends on scan_work, causing deadlock. Kernel stable fixes defer partition scanning to another context.

Likely exposure

Exposure is most relevant to Linux systems using NVMe multipath storage on affected kernel versions. The source bundle lists Linux kernels including 4.15 through fixed stable points around 6.1.118, 6.6.62, 6.11.9, and 6.12, but exact vendor package status must be checked.

Exploitation context

The CVSS vector is local, low complexity, low privilege, no user interaction, and availability-only. The bundle does not show CISA KEV listing, public exploitation, or proof-of-concept evidence. Treat exploitation status as unconfirmed, not active.

Researcher notes

The key behavior is a deadlock caused by partition scanning in scan_work while path error handling also requires that work context. The fix direction is architectural scheduling: defer scanning outside scan_work. Source evidence is sufficient for triage, but distribution-specific affected package ranges require vendor confirmation.

Mitigation direction

  • Apply Linux kernel updates containing the referenced stable fixes.
  • Follow vendor advisories for packaged kernel backports.
  • For Debian LTS, review the cited Debian announcement and update accordingly.
  • Prioritize systems using NVMe multipath for production storage.
  • Monitor vendor guidance if your distribution has not mapped this CVE yet.

Validation and detection

  • Inventory Linux kernel versions across storage-bearing hosts.
  • Identify hosts using NVMe multipath or related storage paths.
  • Confirm installed kernels include vendor fixes for CVE-2024-53093.
  • Check change records against the referenced kernel stable commits.
  • Review availability incidents involving NVMe path errors or storage stalls.
Prepared
Confidence
high
Sources
7

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-2024-53093 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.5 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/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
6Source 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
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADP

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2024-53093Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/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

CISA-ADPCISA ADP Vulnrichment
cvssV3_1other:ssvc
CVECVE Program Container

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux32acab3181c7053c775ca128c3a5c6ce50197d7f, 32acab3181c7053c775ca128c3a5c6ce50197d7f, 32acab3181c7053c775ca128c3a5c6ce50197d7f, 32acab3181c7053c775ca128c3a5c6ce50197d7funaffected
LinuxLinux4.15, 0, 6.1.118, 6.6.62, 6.11.9, 6.12affected
Weakness

CWE details

No CWE listed

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