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CVE Record

CVE-2025-71222: wifi: wlcore: ensure skb headroom before skb_push

In the Linux kernel, the following vulnerability has been resolved: wifi: wlcore: ensure skb headroom before skb_push This avoids occasional skb_under_panic Oops from wl1271_tx_work. In this case, headroom is less than needed (typically 110 - 94 = 16 bytes).

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This is a Linux kernel Wi-Fi driver flaw in wlcore/wl1271 handling. The documented result is an occasional kernel Oops from insufficient packet buffer headroom, which can affect system availability on exposed systems.

Executive priority

Treat as targeted kernel availability risk, not a broadly proven exploitation emergency. Prioritize affected Wi-Fi-enabled Linux fleets once vendor packages are available.

Technical view

The fix ensures sufficient skb headroom before skb_push in the wlcore transmit path. Sources describe skb_under_panic Oops in wl1271_tx_work when required headroom exceeds available headroom.

Likely exposure

Likely limited to Linux systems running affected kernel versions with the wlcore/wl1271 Wi-Fi driver path in use. The bundle does not prove exposure for Linux systems that do not use this driver.

Exploitation context

No active exploitation is supported by the bundle. KEV is false, and the provided sources describe a resolved kernel crash condition rather than exploitation details.

Researcher notes

Evidence is sparse: no CVSS, CWE, exploit report, or detailed trigger conditions are provided. Analysis should stay tied to wlcore skb headroom handling and the cited stable commits.

Mitigation direction

  • Apply a vendor kernel update containing the cited stable wlcore fix.
  • Prioritize systems using wlcore/wl1271 Wi-Fi hardware or driver modules.
  • Track distribution advisories for exact fixed package versions.
  • Avoid direct wrangler or deployment assumptions; this is kernel maintenance work.

Validation and detection

  • Inventory Linux kernels against the affected versions listed in the CVE bundle.
  • Check whether wlcore or wl1271 driver support is present or loaded.
  • Confirm the relevant stable fix commit is included in deployed kernels.
  • Review kernel logs for wl1271_tx_work Oops or skb_under_panic evidence.
Prepared
Confidence
medium
Sources
9

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-2025-71222 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
8Source 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
LinuxLinuxf5fc0f86b02afef1119b523623b4cde41475bc8c, f5fc0f86b02afef1119b523623b4cde41475bc8c, f5fc0f86b02afef1119b523623b4cde41475bc8c, f5fc0f86b02afef1119b523623b4cde41475bc8c, f5fc0f86b02afef1119b523623b4cde41475bc8c, f5fc0f86b02afef1119b523623b4cde41475bc8c, f5fc0f86b02afef1119b523623b4cde41475bc8cunaffected
LinuxLinux2.6.32, 0, 5.10.250, 5.15.200, 6.1.163, 6.6.124, 6.12.70, 6.18.10, 6.19affected
Weakness

CWE details

No CWE listed

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