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CVE Record

CVE-2024-58068: OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized

In the Linux kernel, the following vulnerability has been resolved: OPP: fix dev_pm_opp_find_bw_*() when bandwidth table not initialized If a driver calls dev_pm_opp_find_bw_ceil/floor() the retrieve bandwidth from the OPP table but the bandwidth table was not created because the interconnect properties were missing in the OPP consumer node, the kernel will crash with: Unable to handle kernel NULL pointer dereference at virtual address 0000000000000004 ... pc : _read_bw+0x8/0x10 lr : _opp_table_find_key+0x9c/0x174 ... Call trace: _read_bw+0x8/0x10 (P) _opp_table_find_key+0x9c/0x174 (L) _find_key+0x98/0x168 dev_pm_opp_find_bw_ceil+0x50/0x88 ... In order to fix the crash, create an assert function to check if the bandwidth table was created before trying to get a bandwidth with _read_bw().

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2024-58068 is a Linux kernel availability flaw. A driver can trigger a kernel crash when it asks the OPP subsystem for bandwidth data that was never initialized. The main business impact is local denial of service, not data theft or remote compromise based on the provided sources.

Executive priority

Treat this as a moderate patch-management item. Prioritize internet-independent but uptime-critical Linux appliances, embedded systems, and custom kernel fleets where local users or workloads can trigger kernel paths that affect availability.

Technical view

The bug is a NULL pointer dereference in Linux OPP bandwidth lookup. If dev_pm_opp_find_bw_ceil() or dev_pm_opp_find_bw_floor() is called when the bandwidth table was not created because interconnect properties are missing, _read_bw() can crash the kernel. The fix adds a check before reading bandwidth data.

Likely exposure

Exposure is limited to affected Linux kernels with drivers using the OPP bandwidth lookup path and missing interconnect properties. The CVSS vector indicates local access and low privileges are required. Embedded, device, or custom kernel environments should verify vendor kernel status carefully.

Exploitation context

The source bundle does not show active exploitation, and CISA KEV status is false. The documented impact is a kernel crash, causing availability loss. No confidentiality or integrity impact is identified in the provided CVSS data.

Researcher notes

Evidence supports CWE-476 and availability-only impact. The vulnerable condition is specific: OPP bandwidth lookup without an initialized bandwidth table. The bundle does not provide exploit reports, affected distribution breadth beyond listed Linux data, or a generic runtime workaround.

Mitigation direction

  • Update affected Linux kernels to vendor releases containing the referenced stable fixes.
  • Use Debian LTS guidance if managing Debian systems covered by the advisory.
  • For custom kernels, verify the relevant stable commit is present before release.
  • Check vendor guidance for downstream kernel packages and device firmware updates.

Validation and detection

  • Inventory deployed Linux kernel versions against the CVE affected-version data.
  • Confirm whether the kernel tree includes one of the referenced stable fixes.
  • Review crash logs for NULL dereferences involving _read_bw or dev_pm_opp_find_bw_ceil.
  • Identify platforms using OPP bandwidth lookup paths with interconnect-dependent configuration.
Prepared
Confidence
high
Sources
8

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

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ATT&CK lookup starting points

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cwe · low confidence lookup

CWE-476: Exact CWE lookup

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cve · low confidence lookup

CVE-2024-58068 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
7Source 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-2024-58068Attack 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
LinuxLinuxadd1dc094a7456d3c56782b7478940b6a550c7ed, add1dc094a7456d3c56782b7478940b6a550c7ed, add1dc094a7456d3c56782b7478940b6a550c7ed, add1dc094a7456d3c56782b7478940b6a550c7ed, add1dc094a7456d3c56782b7478940b6a550c7edunaffected
LinuxLinux6.0, 0, 6.1.129, 6.6.76, 6.12.13, 6.13.2, 6.14affected
Weakness

CWE details

CWE-476

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