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CVE Record

CVE-2022-50832: wifi: wilc1000: fix potential memory leak in wilc_mac_xmit()

In the Linux kernel, the following vulnerability has been resolved: wifi: wilc1000: fix potential memory leak in wilc_mac_xmit() The wilc_mac_xmit() returns NETDEV_TX_OK without freeing skb, add dev_kfree_skb() to fix it. Compile tested only.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-50832 is a Linux kernel issue in the WILC1000 Wi-Fi driver. In one transmit path, memory tied to a network packet may not be freed. Systems not using this driver are unlikely to be exposed. Public sources do not provide a CVSS score or evidence of active exploitation.

Executive priority

Treat as a targeted Linux driver maintenance issue, not a broad emergency. Prioritize embedded, IoT, and wireless Linux fleets that may use WILC1000 hardware. Standard kernel update processes should address it once vendor-fixed packages are available.

Technical view

The vulnerability is a potential memory leak in wilc_mac_xmit(). The function can return NETDEV_TX_OK without freeing the skb; the kernel fix adds dev_kfree_skb(). The CVE record lists Linux as affected and references multiple stable kernel commits carrying the fix.

Likely exposure

Exposure is most relevant to Linux systems with the Microchip/Atmel WILC1000 Wi-Fi driver present, enabled, and handling traffic. Servers, appliances, or embedded devices without this driver are likely not affected. Exact distribution package impact must be confirmed against vendor kernel backports.

Exploitation context

The source bundle does not show public exploitation, KEV listing, exploit code, or a defined attack path. The practical concern is resource leakage that could contribute to degraded availability under relevant driver conditions, but impact details are not fully characterized in the provided sources.

Researcher notes

Evidence is limited to the CVE record and Linux stable commits. No CWE, CVSS, or exploitation evidence is provided. The commit message states the fix was compile-tested only, so validation should focus on patch presence and driver exposure rather than exploit reproduction.

Mitigation direction

  • Identify systems running Linux kernels with the WILC1000 Wi-Fi driver enabled or loaded.
  • Update to a vendor kernel containing the referenced stable fixes.
  • For managed distributions, follow the distribution advisory and backport status.
  • If unused, disable or remove the WILC1000 driver where operationally safe.

Validation and detection

  • Check kernel version and vendor patch level against Linux stable fix commits.
  • Confirm whether the WILC1000 driver is built, loadable, or currently loaded.
  • Prioritize embedded and wireless-enabled Linux devices for review.
  • Document exceptions where the driver is absent or unreachable.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2022-50832 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
3Timeline events
0ADP providers
7Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxc5c77ba18ea66aa05441c71e38473efb787705a4, c5c77ba18ea66aa05441c71e38473efb787705a4, c5c77ba18ea66aa05441c71e38473efb787705a4, c5c77ba18ea66aa05441c71e38473efb787705a4, c5c77ba18ea66aa05441c71e38473efb787705a4, c5c77ba18ea66aa05441c71e38473efb787705a4unaffected
LinuxLinux4.2, 0, 5.4.235, 5.10.173, 5.15.99, 6.1.16, 6.2.3, 6.3affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.