LiveActive security incident?Get immediate response
CVE Record

CVE-2024-39470: eventfs: Fix a possible null pointer dereference in eventfs_find_events()

In the Linux kernel, the following vulnerability has been resolved: eventfs: Fix a possible null pointer dereference in eventfs_find_events() In function eventfs_find_events,there is a potential null pointer that may be caused by calling update_events_attr which will perform some operations on the members of the ei struct when ei is NULL. Hence,When ei->is_freed is set,return NULL directly.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel bug in eventfs where a missing null check can lead to unsafe memory access. The available sources do not provide a CVSS score, business impact rating, or exploit details. Treat it as a stability and availability concern until vendor guidance clarifies severity.

Executive priority

Track this through normal Linux kernel patch management unless internal exposure analysis or vendor advisories raise severity. The current public evidence does not support emergency treatment, but kernel availability issues still deserve timely remediation.

Technical view

The vulnerability is a possible null pointer dereference in eventfs_find_events(). The CVE description says update_events_attr may operate on members of the eventfs inode structure when ei is NULL, and the fix returns NULL when ei->is_freed is set.

Likely exposure

Exposure is limited to Linux systems running affected kernel versions or affected source revisions listed by the CVE record. Distribution kernels may include backported fixes, so package metadata and vendor advisories matter more than upstream version alone.

Exploitation context

The provided bundle marks KEV as false and includes no evidence of active exploitation, public exploit availability, remote reachability, or required privileges. Do not assume active attacks from these sources.

Researcher notes

Evidence is sparse: no CVSS, CWE, exploit narrative, or attack prerequisites are provided. Analysis should focus on whether eventfs code is present, whether the stable commits are backported, and whether vendor advisories add impact detail.

Mitigation direction

  • Update to a Linux kernel containing the referenced stable fixes.
  • Check your Linux distribution advisory for backported packages.
  • Prioritize patching systems where kernel crashes would disrupt critical services.
  • Avoid inventing compensating controls; follow vendor kernel guidance.

Validation and detection

  • Inventory running kernel versions across Linux assets.
  • Compare package changelogs against the referenced stable commits.
  • Confirm whether distribution advisories mark your kernel build as fixed.
  • Record exceptions where vendor status is unavailable or unclear.
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

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cve · low confidence lookup

CVE-2024-39470 mapping review

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

Open ATT&CK lookup
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
LinuxLinux628adb842bd5e1c2c598534a7a022b8235289de6, 8186fff7ab649085e2c60d032d9a20a85af1d87c, 8186fff7ab649085e2c60d032d9a20a85af1d87c, 9c2ac5e0ea7899411fd900d4681890722a020735unaffected
LinuxLinux6.8, 0, 6.6.34, 6.9.5, 6.10affected
Weakness

CWE details

No CWE listed

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