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CVE-2024-41078 Linux CVE debrief

A vulnerability in the Btrfs filesystem's quota group (qgroup) implementation can cause a quota root leak when quota disable operations fail. This resource leak occurs in the Linux kernel's Btrfs code and may affect systems where quota management is enabled and subsequently disabled. The issue stems from improper cleanup of quota root structures when the disable operation encounters an error condition, potentially leading to resource exhaustion over time.

Vendor
Linux
Product
RUGGEDCOM RST2428P (6GK6242-6PA00)
CVSS
Unknown
CISA KEV
Not listed in stored evidence
Original CVE published
2025-08-12
Original CVE updated
2026-02-25
Advisory published
2025-08-12
Advisory updated
2026-02-25

Who should care

System administrators managing Linux systems with Btrfs filesystems and quota functionality enabled; security teams tracking kernel-level resource leak vulnerabilities; operators of industrial control systems who may have initially assessed this as affecting their Siemens infrastructure based on early advisory versions.

Technical summary

This vulnerability exists in the Btrfs filesystem's quota group (qgroup) subsystem within the Linux kernel. When a quota disable operation fails, the quota root structure may not be properly released, resulting in a resource leak. The quota root is a data structure used to track quota information for Btrfs subvolumes. A failed disable operation that does not clean up this structure can lead to accumulation of leaked memory or metadata structures over repeated operations. This is a local vulnerability affecting systems with Btrfs quotas enabled. The issue was initially reported as affecting Siemens industrial products running SINEC OS but was subsequently reassessed as not affecting those products (marked 'Misinformed' in threat data).

Defensive priority

medium

Recommended defensive actions

  • Monitor Btrfs filesystem quota operations for error conditions during disable operations
  • Review system logs for quota-related failures on Btrfs volumes
  • Apply kernel updates from distribution vendors when available
  • Consider disabling Btrfs quotas if not required for operational needs
  • Implement resource monitoring to detect potential memory or structure leaks

Evidence notes

The source advisory (ICSA-25-226-07) indicates this CVE was initially included in the affected products list but was subsequently moved to 'Known Not Affected Products' in revision 2 (2026-02-12). The threat category is marked as 'Misinformed' in the CSAF data, suggesting the initial assessment of impact was incorrect. The advisory was republished on 2026-02-25 based on Siemens ProductCERT SSA-355557 advisory.

Sources and references

Verified primary and authoritative sources

  • CVE-2024-41078 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2024-41078

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2024-41078 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2024-41078

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

  • Source item URL

    Unverified legacy reference

    URL: https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2025/icsa-25-226-07.json

    cisa_csaf

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/csaf/ssa-355557.json

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://cert-portal.siemens.com/productcert/html/ssa-355557.html

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-advisories/icsa-25-226-07

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/resources-tools/resources/ics-recommended-practices

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/topics/industrial-control-systems

    Reference

  • Source reference

    Unverified legacy reference

    URL: https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf

    Reference

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.