Security readout for executives and security teams
Plain-English summary
A race in Linux's Intel ice network driver can occur when XDP configuration changes overlap with a physical-function reset. Shared state can become inconsistent and crash the kernel, interrupting services. Risk is concentrated on affected systems using the ice driver with XDP or AF_XDP.
Executive priority
Prioritize urgently on performance-networking hosts using ice with XDP or AF_XDP, especially where resets or TX timeouts occur. For fleets without this driver and feature combination, verify exposure during normal patching rather than treating this as an internet-wide emergency.
Technical view
ice_xdp() and ice_vsi_rebuild() could concurrently manipulate VSI/XDP resources during an asynchronous PF reset, causing a NULL-pointer dereference during ring cleanup. The fix adds xdp_state_lock and rebuild-pending state handling. CVSS 3.1 is 7.8; supplied version data is insufficient for precise distribution-level mapping.
Likely exposure
Exposure requires an affected Linux kernel using Intel's ice driver where XDP or AF_XDP configuration can overlap a PF reset triggered by a user or TX timeout. The flaw is not described as network-reachable. Distribution backports may make version-only assessment unreliable.
Exploitation context
The bundle provides no evidence of active exploitation, and KEV status is false. Exploitation is characterized as local and timing-dependent, requiring relevant configuration and reset conditions. The demonstrated consequence is a kernel crash; broader confidentiality or integrity effects are scored but not demonstrated by the supplied trace.
Researcher notes
The core issue is unsynchronized access between ice_xdp() and ice_vsi_rebuild() during PF reset. The repair serializes these paths and tracks pending rebuild state. Exact affected and fixed distribution releases cannot be determined confidently from the supplied version list; validate commit backports directly.
Mitigation direction
- Apply a distribution kernel update containing the applicable upstream stable fix, then restart into the updated kernel.
- Confirm the running kernel includes the relevant backport; version strings alone may be misleading.
- If patching is delayed, avoid XDP or AF_XDP reconfiguration during ice PF resets where operationally acceptable.
- Monitor ice interfaces for transmit timeouts, resets, kernel oopses, and unexpected service interruption.
Validation and detection
- Inventory Linux systems using the ice driver and associated Intel Ethernet interfaces.
- Identify whether XDP or AF_XDP is configured on those interfaces.
- Compare vendor kernel source or change logs against the applicable referenced stable fix.
- Review kernel logs for ice resets, transmit timeouts, NULL dereferences, and ring-cleanup crashes.
- After updating, confirm systems booted the corrected kernel and perform normal networking regression tests.
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
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ATT&CK lookup starting points
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CVE-2024-46765 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 7.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9LinuxVulnerability scoring details
Base CVSS 3.1 score
7.8HighVector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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
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ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/2f057db2fb29bc209c103050647562e60554d3d3CVE reference, Linux
- https://git.kernel.org/stable/c/391f7dae3d836891fc6cfbde38add2d0e10c6b7fCVE reference, Linux
- https://git.kernel.org/stable/c/2504b8405768a57a71e660dbfd5abd59f679a03fCVE 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.