Security readout for executives and security teams
Plain-English summary
CVE-2022-49417 is a Linux kernel bug in the iwlwifi MEI code. If memory allocation for a network buffer fails, the kernel could use a NULL pointer. The public record does not provide CVSS, CWE, or confirmed impact beyond the kernel fix description.
Executive priority
Treat as a routine kernel maintenance item unless your fleet heavily uses affected wireless-enabled Linux endpoints. There is no public evidence of active exploitation in the provided sources, but kernel crashes can disrupt users and should be addressed through normal patch cycles.
Technical view
The fix changes iwlwifi MEI handling so an SKB allocation failure is skipped instead of dereferencing a NULL pointer. The CVE record lists Linux kernel versions around 5.17 and stable fixes in kernel.org commits. Available evidence suggests a reliability/denial-of-service class issue, but severity is not scored.
Likely exposure
Exposure is most likely on Linux systems running affected kernel builds with the iwlwifi MEI component present. The source data names Linux kernel 5.17-era versions and stable fix commits, but does not provide distribution-specific package mappings.
Exploitation context
No active exploitation is stated in the provided sources, and the CVE is not marked as CISA KEV. The issue depends on an SKB allocation failure path; public sources do not describe a remote attack path, prerequisites, or exploit availability.
Researcher notes
Source detail is sparse: no CVSS, CWE, exploit notes, or distro matrix are provided. The kernel commit message references Coverity CID 1497650 and describes a NULL-pointer dereference after SKB allocation failure. Validate impact against actual downstream kernel patches.
Mitigation direction
- Update to a Linux kernel package that includes the referenced stable fixes.
- Check your Linux distribution advisory for CVE-2022-49417 package status.
- Prioritize affected laptops and endpoints using Intel iwlwifi wireless support.
- If no package is available, follow vendor kernel guidance.
Validation and detection
- Inventory Linux kernel versions across endpoints and servers.
- Confirm whether installed kernels include the referenced kernel.org commits.
- Check distribution security trackers for fixed package versions.
- Review kernel crash reports for NULL pointer dereference patterns in iwlwifi MEI.
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-2022-49417 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/29b81de94d62b5e2704bb5106b3e701ca8d7c7a4CVE reference, Linux
- https://git.kernel.org/stable/c/5d8d06fd3a02919100b28f927bcb76481ec0a0e3CVE reference, Linux
- https://git.kernel.org/stable/c/78488a64aea94a3336ee97f345c1496e9bc5ebdfCVE 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.