Security readout for executives and security teams
Plain-English summary
CVE-2024-46785 is a Linux kernel eventfs/tracefs bug that can trigger a kernel panic during concurrent tracing changes and directory reads. The business impact is primarily availability: an affected system may crash if the vulnerable tracing path is reachable.
Executive priority
Treat as a scheduled kernel stability fix unless critical systems expose tracing interfaces broadly. Prioritize internet-facing infrastructure less than local multi-user, developer, CI, or observability-heavy Linux hosts where kernel crashes have high operational impact.
Technical view
The flaw is an eventfs list handling race: a list entry protected by SRCU was removed with non-RCU deletion, allowing later traversal to see poisoned list state and dereference it. The upstream resolution changes the removal to list_del_rcu() for the SRCU-protected variable.
Likely exposure
Exposure is likely limited to Linux systems running affected kernel versions where tracefs/debugfs tracing interfaces are accessible to a local user or process. The provided sources do not identify remote exposure or specific distributions.
Exploitation context
The CVE source includes a local crash reproduction involving tracefs kprobe event churn and concurrent event directory enumeration. It is not in CISA KEV, and the bundle provides no evidence of active exploitation in the wild.
Researcher notes
Evidence supports a local denial-of-service style kernel panic, not privilege escalation or remote code execution. Affected-version data is incomplete at distribution level, so validation should rely on vendor backports and commit presence rather than version strings alone.
Mitigation direction
- Identify systems running affected Linux kernel versions listed for this CVE.
- Upgrade to a kernel build containing the referenced stable fixes.
- Check vendor or distribution advisories for the supported fixed package.
- Restrict access to tracefs/debugfs tracing interfaces where operationally feasible.
Validation and detection
- Inventory kernel versions across Linux hosts and appliances.
- Confirm whether tracefs/debugfs is mounted and who can access tracing paths.
- Verify the deployed kernel includes one of the referenced stable commits or vendor backports.
- Review logs for kernel oops or panic events involving eventfs_iterate or tracefs.
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-2024-46785 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/05e08297c3c298d8ec28e5a5adb55840312dd87eCVE reference, Linux
- https://git.kernel.org/stable/c/f579d17a86448779f9642ad8baca6e3036a8e2d6CVE reference, Linux
- https://git.kernel.org/stable/c/d2603279c7d645bf0d11fa253b23f1ab48fc8d3cCVE 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.