Security readout for executives and security teams
Plain-English summary
CVE-2024-42112 is a Linux kernel txgbe network driver bug. During device removal with MSI/INTx interrupts, the driver may free internal status-block memory too early while shared interrupts can still read it. Business impact is unclear from public data, but affected systems using this driver should be patched through normal kernel maintenance.
Executive priority
Treat as a kernel maintenance item, not an emergency, unless critical systems use txgbe hardware. The absence of CVSS and exploitation evidence limits urgency, but kernel memory lifecycle bugs can affect reliability and deserve timely patching.
Technical view
The resolved issue is a use-after-free timing bug in the txgbe driver’s ISB resource lifecycle. The fix moves wx_free_isb_resources() from txgbe_close() to txgbe_remove() and corrects txgbe_open() error handling. Source data lists affected Linux kernel entries including 6.9, 6.9.9, and 6.10, with incomplete version semantics.
Likely exposure
Exposure is most likely limited to Linux systems running affected kernel builds with the txgbe network driver and relevant hardware. The provided sources do not identify distributions, appliances, or cloud platforms that are affected.
Exploitation context
The source bundle does not show CISA KEV listing, active exploitation, public exploit availability, or remote attack details. The described trigger area is driver cleanup and interrupt handling during device remove or open error paths.
Researcher notes
Evidence is narrow and kernel-focused. The public description supports a txgbe ISB use-after-free during shared interrupt handling before IRQ teardown. No CWE, CVSS vector, proof-of-concept, distribution mapping, or exploit preconditions are provided in the bundle.
Mitigation direction
- Check Linux vendor advisories for CVE-2024-42112 backports.
- Upgrade to a kernel containing the referenced stable fixes.
- Prioritize systems using txgbe-supported network adapters.
- Track distribution package changelogs for the fix commits.
- Avoid unsupported kernel builds on production network hosts.
Validation and detection
- Inventory Linux kernel versions against affected source data.
- Confirm whether the txgbe driver is present or loaded.
- Verify vendor kernel packages include the stable fix commits.
- Review fleet exposure for systems using MSI or INTx interrupt paths.
- Document compensating controls if patch timing is delayed.
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.
CVE-2024-42112 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
- 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.
SSVC decision data
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/efdc3f54299835ddef23bea651c753c4d467010bCVE reference, Linux
- https://git.kernel.org/stable/c/935124dd5883b5de68dc5a94f582480a10643dc9CVE 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.