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CVE Record

CVE-2024-46833: net: hns3: void array out of bound when loop tnl_num

In the Linux kernel, the following vulnerability has been resolved: net: hns3: void array out of bound when loop tnl_num When query reg inf of SSU, it loops tnl_num times. However, tnl_num comes from hardware and the length of array is a fixed value. To void array out of bound, make sure the loop time is not greater than the length of array

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2024-46833 is a Linux kernel issue in the hns3 network driver. A hardware-reported tunnel count could make the driver loop past a fixed array while querying SSU register information. The sources confirm a kernel fix, but do not state business impact, CVSS severity, or active exploitation.

Executive priority

Treat this as targeted kernel hygiene rather than an internet-wide emergency. Prioritize patch validation for servers using hns3 network hardware, especially production systems where kernel driver faults could affect availability. No active exploitation is supported by the supplied sources.

Technical view

The vulnerable hns3 code trusted tnl_num from hardware when iterating over a fixed-size array during SSU register information queries. The fix limits loop iterations to the array length. Source metadata lists Linux kernel 6.10, 6.10.10, and 6.11-related affected entries, but distro backport status is not provided.

Likely exposure

Exposure appears limited to Linux systems using affected kernel builds with the hns3 network driver and compatible hardware. General Linux systems without that driver or hardware are less likely exposed. Confirm exact exposure through kernel package, driver presence, and vendor or distribution advisories.

Exploitation context

The source bundle does not identify public exploitation, weaponization, or KEV listing. The described condition depends on hardware-provided tnl_num exceeding a fixed array length during a driver register query path. Practical exploitability and impact are not established by the supplied sources.

Researcher notes

Evidence is narrow: the CVE text describes an out-of-bounds array loop, and two stable kernel commits are referenced. There is no CVSS, CWE, crash detail, exploitability analysis, or vendor-specific package mapping in the supplied bundle.

Mitigation direction

  • Update to a kernel containing the referenced stable hns3 fixes.
  • Check your Linux distribution advisory for backported fixed packages.
  • Prioritize systems with Huawei HNS3-compatible network hardware or loaded hns3 drivers.
  • If patching is delayed, consult vendor guidance for supported risk reduction.

Validation and detection

  • Inventory kernels matching the affected Linux version entries from the CVE source.
  • Check whether the hns3 driver is present or loaded on those systems.
  • Verify installed kernel packages include the referenced upstream stable fix commits.
  • Review distribution changelogs for CVE-2024-46833 or hns3 fix backports.
Prepared
Confidence
medium
Sources
4

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-2024-46833 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
1ADP providers
3Source 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

CISA-ADPCISA ADP Vulnrichment
other:ssvc

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux8a4bda8cb9e43e1fae96c4c4aa94069f49dc3a68, 8a4bda8cb9e43e1fae96c4c4aa94069f49dc3a68unaffected
LinuxLinux6.10, 0, 6.10.10, 6.11affected
Weakness

CWE details

No CWE listed

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