Security readout for executives and security teams
Plain-English summary
A race condition in the Linux octeontx2-af network driver can let two processor cores handle the same device event simultaneously, potentially corrupting kernel-managed data. Exploitation requires local access with low privileges and a system using the affected driver path. Successful abuse could compromise confidentiality, integrity, and availability.
Executive priority
Treat this as high priority for infrastructure using the affected OcteonTX2 driver path because successful local abuse may affect all three security objectives. Scope hardware and driver usage promptly, then patch confirmed exposures through normal emergency procedures. Broader Linux fleets should be assessed before assuming universal exposure.
Technical view
The octeontx2-af driver used one handler for PF-to-AF and VF-to-AF interrupt vectors. Simultaneous interrupts on separate CPUs could make both cores process the same event, corrupting data. The CVSS 3.1 score is 7.8: local, low-complexity, low-privilege access without user interaction. Referenced stable commits separate the handlers.
Likely exposure
Exposure is likely concentrated on affected Linux kernels using the octeontx2-af driver and associated PF/VF interrupt functionality. The supplied version list does not clearly express branch ranges or distribution backports. Systems without this driver path are not evidenced as exposed by the bundle.
Exploitation context
The supplied sources do not establish public or active exploitation, and the CVE is not marked as KEV. The CVSS vector describes a local attack requiring low privileges, not a remotely reachable flaw. Absence from KEV does not prove exploitation has never occurred.
Researcher notes
The sources describe a concurrency flaw but assign no CWE and provide no exploit evidence. Exact affected ranges are ambiguous in the flattened version data, so branch-specific stable commits and distribution backports require verification. Multiple upstream commits appear to provide equivalent fixes across maintained kernel branches.
Mitigation direction
- Update to a vendor-supported kernel containing the applicable referenced stable fix.
- Confirm distribution backports instead of relying solely on upstream kernel version numbers.
- Prioritize systems where octeontx2-af and PF/VF virtualization functionality are active.
- Follow vendor guidance; the supplied sources identify no configuration-only mitigation.
Validation and detection
- Inventory kernel builds and identify systems using the octeontx2-af driver.
- Verify each vendor kernel contains the applicable upstream fix or documented backport.
- Test OcteonTX2 PF/VF-to-AF interrupt functionality after updating.
- Review kernel and device logs for corruption or crashes, without treating them as proof of exploitation.
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
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CVE-2024-27030 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
- 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/94cb17e5cf3a3c484063abc0ce4b8a2b2e8c1cb2CVE reference, Linux
- https://git.kernel.org/stable/c/766c2627acb2d9d1722cce2e24837044d52d888aCVE reference, Linux
- https://git.kernel.org/stable/c/772f18ded0e240cc1fa2b7020cc640e3e5c32b70CVE reference, Linux
- https://git.kernel.org/stable/c/29d2550d79a8cbd31e0fbaa5c0e2a2efdc444e44CVE reference, Linux
- https://git.kernel.org/stable/c/dc29dd00705a62c77de75b6d752259b869aac49dCVE reference, Linux
- https://git.kernel.org/stable/c/ad6759e233db6fcc131055f8e23b4eafbe81053cCVE reference, Linux
- https://git.kernel.org/stable/c/4fedae8f9eafa2ac8cdaca58e315f52a7e2a8701CVE reference, Linux
- https://git.kernel.org/stable/c/50e60de381c342008c0956fd762e1c26408f372cCVE reference, Linux
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlCVE reference, CVE · x_transferred
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.