Security readout for executives and security teams
Plain-English summary
A flaw in Linux’s Texas Instruments AM65 CPSW Ethernet driver can crash the kernel when XDP transmits traffic while only one transmit queue is configured. The documented impact is service disruption, not data theft or modification. Systems without this driver and configuration are unlikely to be exposed.
Executive priority
Treat this as high priority for availability-critical appliances or embedded systems using the affected TI driver and XDP_TX configuration. Other Linux systems have substantially lower likely exposure. Establish applicability first, then schedule the vendor-supported kernel update promptly; emergency action is not supported solely by the supplied exploitation evidence.
Technical view
The am65_cpsw_ndo_xdp_xmit() path selected a transmit channel using the maximum queue count instead of the active queue count. With one active TX queue, this can select a NULL channel and cause a kernel NULL-pointer dereference. The linked kernel changes correct the selection logic to use actual TX queues.
Likely exposure
Exposure is concentrated in Linux systems using the TI AM65 CPSW Ethernet driver, XDP_TX, and a single active TX queue. The bundle lists Linux 6.10, 6.10.10, and 6.11-related version markers, but does not provide enough structured detail to state precise vulnerable build boundaries confidently.
Exploitation context
The CVSS vector describes network reachability without privileges or user interaction. However, the supplied evidence demonstrates the crash only after configuring one TX queue and exercising XDP_TX. It does not establish that arbitrary remote traffic alone can trigger the flaw. CISA KEV status is false, and no active exploitation evidence is supplied.
Researcher notes
The failure condition and corrected queue-selection logic are clearly described, but the bundle’s flattened version data is ambiguous. Researchers should map the two stable commits to distributor builds before declaring exposure. The evidence supports denial of service through a NULL dereference; it does not support confidentiality loss, integrity impact, code execution, or confirmed exploitation.
Mitigation direction
- Install a vendor-supported kernel containing the applicable linked fix.
- Confirm patched-build availability and exact affected versions through your Linux distributor or hardware vendor.
- As an interim precaution, avoid one-TX-queue configurations on affected interfaces where operationally safe.
- Prioritize externally reachable or availability-critical systems using XDP_TX.
Validation and detection
- Inventory systems using the TI AM65 CPSW Ethernet driver.
- Identify interfaces configured with one active transmit queue.
- Determine whether deployed kernels include either applicable linked stable fix.
- Review kernel crash records for NULL dereferences associated with XDP_TX and this driver.
- Perform any regression testing in an isolated environment, not production.
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
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ATT&CK lookup starting points
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CVE-2024-46799 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H3.93.6LinuxVulnerability scoring details
Base CVSS 3.1 score
7.5HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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/2e7189d2b1de51fc2567676cd4f96c0fe0960b9fCVE reference, Linux
- https://git.kernel.org/stable/c/0a50c35277f96481a5a6ed5faf347f282040c57dCVE 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.