Security readout for executives and security teams
Plain-English summary
A Linux software RAID bitmap defect can sometimes crash systems using clustered multidisk configurations. The issue is local rather than remotely reachable and requires limited privileges, but disruption to clustered storage could affect critical services. The supplied CVSS 3.1 score is 7.8 (High).
Executive priority
Treat as a high-priority, targeted infrastructure issue rather than an internet-wide emergency. Identify clustered MD deployments promptly and schedule vendor-supported kernel updates, prioritizing storage nodes whose failure would interrupt critical services. There is no supplied evidence of active exploitation.
Technical view
Earlier bitmap changes removed reliance on page indexing but left incorrect sb_index handling for clustered MD. Cluster nodes consequently may not receive the required slot offset, and bitmap writes can trigger a kernel crash through the MD and RAID1 request path. The supplied record identifies fixes in four Linux stable commits.
Likely exposure
Exposure appears limited to Linux systems using clustered MD with bitmap-backed RAID. The bundle marks Linux 6.6, versions through 6.6.24, 6.7.12, 6.8.3, and 6.9 as affected, but its version data is ambiguous. Confirm exact distribution kernel status with the vendor.
Exploitation context
The CVSS vector indicates local access, low complexity, limited privileges, and no user interaction. CISA KEV status is false, and the supplied sources provide no evidence of active exploitation. The record demonstrates a crash condition, not a documented public exploitation method.
Researcher notes
The affected boundary is incompletely expressed: duplicate introducing commit entries and mixed version values prevent precise package-level conclusions. No CWE is assigned. Review the four stable commits and downstream backports to establish branch-specific exposure. The source record supports intermittent kernel crashing in clustered environments but does not establish additional exploitation outcomes.
Mitigation direction
- Apply the distribution kernel update containing the applicable Linux stable fix.
- Consult distribution advisories to confirm fixed package versions for each deployed kernel.
- Prioritize clustered MD hosts supporting critical or highly available storage.
- If patching is delayed, assess whether affected clustered MD configurations can be safely reduced or isolated.
Validation and detection
- Inventory kernel versions on systems using clustered MD and RAID bitmaps.
- Compare each distribution kernel build with its vendor advisory or backport status.
- Confirm the applicable stable fix commit is included in deployed kernel source or package metadata.
- After updating, verify systems boot normally and clustered RAID bitmap operations remain healthy.
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
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ATT&CK lookup starting points
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CVE-2024-35787 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:H/I:H/A:H1.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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/736ad6c577a367834118f57417038d45bb5e0a31CVE reference, Linux
- https://git.kernel.org/stable/c/55e55eb65fd5e09faf5a0e49ffcdd37905aaf4daCVE reference, Linux
- https://git.kernel.org/stable/c/5a95815b17428ce2f56ec18da5e0d1b2a1a15240CVE reference, Linux
- https://git.kernel.org/stable/c/ecbd8ebb51bf7e4939d83b9e6022a55cac44ef06CVE 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.