Security readout for executives and security teams
Plain-English summary
This Linux kernel issue can panic a system when the mgb4 media driver removes debugfs entries twice during cleanup. The source describes an availability failure, not data theft or privilege escalation. Exposure appears specialized because it depends on the affected kernel and the mgb4 driver path.
Executive priority
Treat as a targeted availability issue rather than a broad emergency. Patch during normal kernel maintenance, with faster handling for systems using relevant media hardware or where downtime has high business impact.
Technical view
The flaw is a double debugfs removal in the Linux kernel media mgb4 driver: debugfs_remove_recursive() is called on a parent directory and then again on a child, causing a kernel panic. Kernel stable commits are referenced as the fixes. The source bundle provides no CVSS, CWE, or detailed exploit preconditions.
Likely exposure
Likely limited to Linux systems running affected kernel versions with the mgb4 media driver present and exercised. The bundle lists Linux as affected, including 6.7 and fixed-version context around 6.9.5 and 6.10, but does not map distro packages.
Exploitation context
The bundle does not report active exploitation, public exploit use, or KEV listing. It supports a denial-of-service style impact through kernel panic, but does not provide enough evidence to claim remote reachability or reliable attacker-triggered exploitation.
Researcher notes
Evidence is narrow: the CVE text identifies the buggy double debugfs removal and panic outcome, with two kernel stable references. No CVSS, CWE, exploitability analysis, trigger details, or distro-specific affected package data is provided in the bundle.
Mitigation direction
- Check vendor or distribution kernel advisories for CVE-2024-39465 status.
- Update to a kernel containing the referenced stable fix commits.
- Prioritize systems that use media capture hardware or the mgb4 driver.
- Consider disabling unused mgb4 driver exposure where operationally safe.
- Track this as an availability risk until patched.
Validation and detection
- Inventory Linux kernel versions across affected assets.
- Check whether the mgb4 driver is present or loaded.
- Confirm installed kernels include the referenced stable commits.
- Review kernel logs for unexplained panics involving mgb4 or debugfs.
- Verify distribution package advisories before closing remediation.
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-2024-39465 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/252204b634efffd8b167d77413c93d0192aaf5f6CVE reference, Linux
- https://git.kernel.org/stable/c/825fc49497957310e421454fe3fb8b8d8d8e2dd2CVE 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.