Security readout for executives and security teams
Plain-English summary
This is a Linux kernel driver flaw in Intel’s ice network driver XSK handling. A local user with the right networking access can trigger a kernel fault by binding an XSK socket to a queue without a matching receive queue. The practical concern is service disruption on affected hosts, not proven remote compromise.
Executive priority
Treat as a targeted availability risk for specialized Linux networking systems. Prioritize high-throughput Intel ice deployments using XDP/XSK, especially where local users or services can change queue settings or bind XSK sockets.
Technical view
The ice driver assumes XSK operations apply to a balanced Tx/Rx queue pair. With uneven queue counts, an XSK bind to a Tx-only queue can access outside the Rx ring array and produce a kernel NULL pointer dereference. The kernel fix restricts XSK queue IDs to combined queues reported by ethtool.
Likely exposure
Exposure is likely limited to Linux systems using the ice driver, AF_XDP/XSK workloads, and non-balanced queue configurations. General Linux hosts without this driver or XSK use are less likely exposed.
Exploitation context
The provided sources do not show active exploitation, KEV listing, public exploit code, or remote attack evidence. The described trigger is local and configuration-dependent, involving queue layout and XSK socket binding.
Researcher notes
Evidence supports an out-of-bounds Rx ring array access path ending in kernel NULL pointer dereference. Sources do not provide CVSS, CWE, privilege requirements, or broader impact claims, so avoid assuming remote reachability or privilege escalation.
Mitigation direction
- Apply vendor or distribution kernel updates containing the referenced stable fixes.
- Check Linux distribution advisories for exact fixed kernel packages.
- Avoid non-balanced ice queue configurations where XSK sockets are used.
- Restrict local access to AF_XDP/XSK-capable networking operations.
- Monitor affected hosts for kernel oops or unexpected network-driver crashes.
Validation and detection
- Inventory hosts using the Linux ice network driver.
- Identify systems running AF_XDP, XSK, or xdpsock-style workloads.
- Review queue configurations for mismatched Rx and Tx counts.
- Confirm kernel package includes a referenced stable fix or vendor backport.
- Check logs for ice_xsk_pool_setup faults or NULL pointer dereferences.
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
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CVE-2022-50003 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.
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.
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/1bfdcde723d8ceb2d73291b0415767e7c1cc1d8aCVE reference, Linux
- https://git.kernel.org/stable/c/fe76b3e674665ea4059337f8f66d20cdfb0168ebCVE reference, Linux
- https://git.kernel.org/stable/c/03a3f29fe5b1751ad9b5c892c894183e75a6e4c4CVE reference, Linux
- https://git.kernel.org/stable/c/5a42f112d367bb4700a8a41f5c12724fde6bfbb9CVE 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.