Security readout for executives and security teams
Plain-English summary
CVE-2026-23024 is a Linux kernel idpf driver cleanup flaw. If the idpf module is removed while flow steering rules still exist, memory associated with those rules may not be freed. The available sources describe a resource leak, not remote compromise or data theft.
Executive priority
Treat this as low-priority maintenance unless idpf is widely used in your fleet or frequent driver reloads are part of operations. There is no cited evidence of active exploitation or high-impact compromise.
Technical view
The idpf driver maintained a flow steering list populated through ethtool rule creation and deletion. During module removal, remaining entries were not cleaned up. The fix frees remaining list entries on removal and adds a spinlock to protect concurrent list access.
Likely exposure
Exposure appears limited to Linux systems using affected kernel versions with the idpf driver and active ethtool flow steering rules during module removal. The source bundle lists Linux kernel version ranges and stable commits, but distribution backport status must be checked separately.
Exploitation context
No active exploitation is indicated. The CVE is not marked KEV, and the provided sources do not describe public exploitation, weaponized use, or a remote attack path.
Researcher notes
The root issue is missed cleanup of flow steering list entries on rmmod, plus concurrent access protection. Source evidence is narrow and does not provide CVSS, CWE, exploitability details, or distro-specific affected package versions.
Mitigation direction
- Check vendor or distribution kernel advisories for a backported fix.
- Update to a kernel containing the referenced stable fixes.
- Avoid unnecessary idpf module unloads while flow steering rules are active.
- Track this as operational hardening unless vendor guidance raises severity.
Validation and detection
- Inventory Linux systems using the idpf driver.
- Check kernel versions against the CVE affected records and vendor advisories.
- Review whether ethtool flow steering rules are used on affected hosts.
- Confirm installed kernels include the referenced stable commits or vendor backports.
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-2026-23024 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
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.
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/1aedff70a5e97628eaaf17b169774cb6a45a1dc5CVE reference, Linux
- https://git.kernel.org/stable/c/f9841bd28b600526ca4f6713b0ca49bf7bb98452CVE 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.