Security readout for executives and security teams
Plain-English summary
This Linux kernel flaw can make certain RAID storage operations hang, creating an availability risk. It requires local privileges and affects systems using md RAID or dm-raid behavior on affected kernels. The sources do not indicate data theft, data modification, remote exploitation, or active exploitation.
Executive priority
Treat this as a targeted availability risk for Linux storage infrastructure, not a broad remote-compromise emergency. Prioritize patching where affected RAID configurations support critical services or recovery operations.
Technical view
In md_check_recovery(), a read-only array path can skip unregistering a sync thread after dm-raid temporarily toggles mddev->ro. MD_RECOVERY_RUNNING may remain set, causing md_stop to wait indefinitely. The vulnerability is classified as CWE-404 with CVSS 5.5, reflecting local, low-complexity, privileged availability impact.
Likely exposure
Exposure is most likely on Linux systems using md RAID or dm-raid arrays with affected kernel versions. Internet-facing status is not the key factor; local access and storage stack configuration matter more. Systems without affected RAID functionality are less likely to be exposed.
Exploitation context
No CISA KEV listing is provided, and the source bundle does not cite active exploitation. The CVSS vector indicates local access with low privileges, no user interaction, and high availability impact only. Evidence supports a denial-of-service style hang, not confidentiality or integrity compromise.
Researcher notes
The root issue is a recovery-state cleanup gap when dm-raid manipulates mddev->ro directly. The public description ties the regression to commit f52f5c71f3d4 and fixes the behavior in md_check_recovery(). Source evidence is sufficient for availability impact, but not for exploit prevalence.
Mitigation direction
- Apply vendor kernel updates that include the referenced stable fixes.
- Prioritize hosts using md RAID or dm-raid for production storage.
- Check Linux distribution advisories for backported fixes and package names.
- Restrict unnecessary local shell access on storage-sensitive systems.
- Plan maintenance windows for kernel updates on affected RAID hosts.
Validation and detection
- Inventory Linux kernel versions across servers and appliances.
- Identify hosts using md RAID or dm-raid arrays.
- Confirm whether installed kernels include the referenced stable commits.
- Review operational records for hangs during RAID stop or update workflows.
- Track vendor advisory status for each affected Linux distribution.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-404: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2024-26757 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- 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
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.
SSVC decision data
CVSS vector scores
1 official scoreWe 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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H1.83.6CISA-ADPVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/2ea169c5a0b1134d573d07fc27a16f327ad0e7d3CVE reference, Linux
- https://git.kernel.org/stable/c/55a48ad2db64737f7ffc0407634218cc6e4c513bCVE reference, Linux
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Resource Shutdown or Release
Improper Resource Shutdown or Release represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.