Security readout for executives and security teams
Plain-English summary
CVE-2022-50248 is a Linux kernel Wi-Fi driver bug that can double-free a network buffer. The public record describes kernel crashes, lockups, and KASAN use-after-free reports tied to the iwlwifi transmit path. Business impact is mainly system instability on affected Linux systems using this driver.
Executive priority
Schedule normal expedited kernel patching for affected Linux endpoints. Escalate only where Wi-Fi instability affects critical operations or where kernel memory-safety defects require strict remediation timelines.
Technical view
The issue is in the Linux iwlwifi mvm transmit path. When iwl_mvm_tx_skb_sta returns an error, skb ownership can be mishandled after TSO buffer construction, allowing the same skb to be freed twice. Stable kernel commits change the error path to avoid the double free and perform cleanup manually.
Likely exposure
Exposure appears limited to Linux systems running affected kernel versions with the iwlwifi mvm driver path in use. The source mentions AX210-related firmware crashes, but the CVE data does not fully enumerate hardware models, distributions, or package versions.
Exploitation context
The supplied sources do not report active exploitation, and KEV is false. Evidence shows crashes, lockups, and KASAN diagnostics, not a public exploit chain. Treat this as a kernel memory-safety flaw with demonstrated reliability impact and unclear exploitability.
Researcher notes
The record is unusually sparse: no CVSS, CWE, exploit details, or distribution mapping are provided. Analysis should stay anchored to the iwlwifi mvm TX-path double-free and the listed upstream stable commits.
Mitigation direction
- Update to a vendor kernel containing the referenced stable Linux fixes.
- Prioritize laptops, workstations, and appliances using Intel iwlwifi wireless drivers.
- Use distribution advisories to map fixed package versions for your fleet.
- Where patching is delayed, follow vendor guidance for supported temporary workarounds.
Validation and detection
- Inventory Linux kernel versions and identify systems using the iwlwifi driver.
- Check whether fixed stable commits are present in the running kernel package.
- Review logs for iwlwifi firmware crashes, lockups, KASAN, or use-after-free traces.
- Confirm regression coverage for Wi-Fi transmit stability after kernel update.
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-2022-50248 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/0e1e311fd929c6a8dcfddcb4748c47b07e39821fCVE reference, Linux
- https://git.kernel.org/stable/c/ae966649f665bc3868b935157dd4a3c31810dcc0CVE reference, Linux
- https://git.kernel.org/stable/c/d8e32f1bf1a9183a6aad560c6688500222d24299CVE reference, Linux
- https://git.kernel.org/stable/c/8fabe41fba907e4fd826acbbdb42e09c681c515eCVE reference, Linux
- https://git.kernel.org/stable/c/3a2ecd1ec14075117ccb3e85f0fed224578ec228CVE reference, Linux
- https://git.kernel.org/stable/c/0473cbae2137b963bd0eaa74336131cb1d3bc6c3CVE 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.