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CVE Record

CVE-2024-26702: iio: magnetometer: rm3100: add boundary check for the value read from RM3100_REG_TMRC

In the Linux kernel, the following vulnerability has been resolved: iio: magnetometer: rm3100: add boundary check for the value read from RM3100_REG_TMRC Recently, we encounter kernel crash in function rm3100_common_probe caused by out of bound access of array rm3100_samp_rates (because of underlying hardware failures). Add boundary check to prevent out of bound access.

MediumCVSS 5.5Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel availability issue in the RM3100 magnetometer driver. A faulty hardware read can cause an out-of-bounds array access during driver probing, leading to a kernel crash. It is local and specialized, so urgency is highest for systems using this sensor driver.

Executive priority

Handle through normal kernel patch management, with higher priority for embedded or sensor-dependent environments where a kernel crash could interrupt operations. There is no source-backed evidence of active exploitation, but availability impact can be material on affected devices.

Technical view

The rm3100_common_probe path reads RM3100_REG_TMRC and uses the value to index rm3100_samp_rates. The fix adds a boundary check to prevent CWE-125 out-of-bounds access when hardware returns an unexpected value. CVSS is 5.5, local attack vector, high availability impact, no confidentiality or integrity impact.

Likely exposure

Exposure is likely limited to Linux systems with the RM3100 IIO magnetometer driver present and reachable, especially embedded, industrial, robotics, or sensor platforms. General servers without this driver or hardware are unlikely to be meaningfully exposed, but kernel package inventories should still be checked.

Exploitation context

The source bundle does not show KEV listing or active exploitation. The described trigger involves local conditions and underlying hardware failure behavior. Treat this as a denial-of-service risk rather than remote compromise based on the available evidence.

Researcher notes

Evidence supports a local denial-of-service condition in a specific Linux kernel hardware driver. The root cause is unchecked use of a hardware-derived register value as an array index. The public bundle provides stable kernel commits and a Debian LTS advisory, but not exploit evidence.

Mitigation direction

  • Update to a vendor kernel containing the referenced stable fixes.
  • Check Linux distributor advisories for the exact fixed package version.
  • Prioritize embedded or sensor systems using the RM3100 magnetometer driver.
  • Reboot into the patched kernel after package installation.
  • If no patch is available, follow vendor guidance for driver exposure reduction.

Validation and detection

  • Inventory running kernel versions across affected Linux assets.
  • Confirm whether the RM3100 IIO magnetometer driver is built, loaded, or used.
  • Map deployed kernels against vendor fixed releases or referenced stable commits.
  • Review crash logs for rm3100_common_probe or RM3100 driver faults.
  • Verify systems rebooted into the patched kernel after maintenance.
Prepared
Confidence
high
Sources
10

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

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-125: Exact CWE lookup

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Open ATT&CK lookup
cve · low confidence lookup

CVE-2024-26702 mapping review

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Open ATT&CK lookup
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
9Source 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-2024-26702Attack 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
Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux121354b2eceb2669ebdffa76b105ad6c03413966, 121354b2eceb2669ebdffa76b105ad6c03413966, 121354b2eceb2669ebdffa76b105ad6c03413966, 121354b2eceb2669ebdffa76b105ad6c03413966, 121354b2eceb2669ebdffa76b105ad6c03413966, 121354b2eceb2669ebdffa76b105ad6c03413966, 121354b2eceb2669ebdffa76b105ad6c03413966unaffected
LinuxLinux5.0, 0, 5.4.269, 5.10.210, 5.15.149, 6.1.79, 6.6.18, 6.7.6, 6.8affected
Weakness

CWE details

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

CWE-125 · source CWE mapping

Out-of-bounds Read

Out-of-bounds Read represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.