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CVE Record

CVE-2024-47675: bpf: Fix use-after-free in bpf_uprobe_multi_link_attach()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix use-after-free in bpf_uprobe_multi_link_attach() If bpf_link_prime() fails, bpf_uprobe_multi_link_attach() goes to the error_free label and frees the array of bpf_uprobe's without calling bpf_uprobe_unregister(). This leaks bpf_uprobe->uprobe and worse, this frees bpf_uprobe->consumer without removing it from the uprobe->consumers list.

HighCVSS 7.8Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

A flaw in affected Linux kernels can leave freed memory referenced after a BPF uprobe attachment fails. A local, low-privileged user may be able to trigger memory corruption, potentially compromising confidentiality, integrity, and availability. The supplied CVSS score is 7.8.

Executive priority

Treat as a high-priority kernel maintenance issue, especially on shared or multi-user Linux systems. It is not evidenced as an internet-remote or actively exploited threat in the supplied sources. Inventory exposure promptly and deploy vendor-supported fixed kernels through normal emergency patch governance.

Technical view

When bpf_link_prime() fails in bpf_uprobe_multi_link_attach(), cleanup frees bpf_uprobe objects without unregistering them. The associated consumer remains on the uprobe consumers list after being freed, creating a use-after-free condition. The source bundle identifies upstream stable commits resolving the error-path cleanup defect.

Likely exposure

Exposure requires an affected Linux kernel and local low-privileged access; no user interaction is required. Systems permitting relevant BPF and uprobe operations deserve priority. The supplied version data is ambiguous, so distribution-specific kernel advisories should determine actual exposure.

Exploitation context

The supplied CVSS vector indicates local, low-complexity exploitation with low privileges and potentially high confidentiality, integrity, and availability impact. The bundle marks this CVE as absent from KEV and provides no evidence of active exploitation or a public exploit.

Researcher notes

The vulnerable failure path creates a stale uprobe consumer-list entry by freeing the consumer without bpf_uprobe_unregister(). The bundle supplies no CWE, exploit proof, attack prerequisites beyond the CVSS vector, or authoritative distribution package mapping. Validate backports by code or vendor advisory, not version strings alone.

Mitigation direction

  • Identify Linux kernel versions across hosts and containers sharing host kernels.
  • Check distribution or kernel-vendor guidance for CVE-2024-47675.
  • Install a supported kernel release incorporating the referenced stable fix.
  • Prioritize multi-user systems where untrusted local users can access relevant BPF facilities.
  • Apply vendor-recommended access restrictions if immediate kernel replacement is unavailable.

Validation and detection

  • Confirm the running kernel version after remediation and any required reboot.
  • Verify the installed kernel includes the applicable referenced stable commit or vendor backport.
  • Review vendor advisories because package versions may not match upstream kernel numbering.
  • Test affected workloads and BPF observability tooling after the kernel update.
Prepared
Confidence
medium
Sources
6

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-2024-47675 mapping review

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Vulnerability profileCVE Program record
Severity
High
CVSS
7.8 (3.1)
Known Exploited
No
Published

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
1ADP providers
5Source 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
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9Linux

Vulnerability scoring details

Base CVSS 3.1 score

7.8High
CVSS 3.1 vector shape for CVE-2024-47675Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

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

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux89ae89f53d201143560f1e9ed4bfa62eee34f88e, 89ae89f53d201143560f1e9ed4bfa62eee34f88e, 89ae89f53d201143560f1e9ed4bfa62eee34f88e, 89ae89f53d201143560f1e9ed4bfa62eee34f88eunaffected
LinuxLinux6.6, 0, 6.6.54, 6.10.13, 6.11.2, 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.