CVE-2025-71222
Unknown Unknown - Not Provided

Buffer Overflow in Linux wlcore Driver Causes Kernel Panic

Publication date: 2026-02-14

Last updated on: 2026-03-19

Assigner: kernel.org

Description
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).

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Meta Information

Published
2026-02-14
Last Modified
2026-03-19
Generated
2026-07-06
AI Q&A
2026-02-14
EPSS Evaluated
2026-07-05
NVD
CVE-2025-71222
EUVD
EUVD-2025-206988

Affected Vendors & Products

Showing 9 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel 6.19
linux linux_kernel From 5.16 (inc) to 6.1.163 (exc)
linux linux_kernel From 6.7 (inc) to 6.12.70 (exc)
linux linux_kernel From 6.2 (inc) to 6.6.124 (exc)
linux linux_kernel From 6.13 (inc) to 6.18.10 (exc)
linux linux_kernel From 5.11 (inc) to 5.15.200 (exc)
linux linux_kernel From 2.6.32 (inc) to 5.10.250 (exc)

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Impact Analysis

The impact of this vulnerability is that it can cause the Linux kernel to panic or crash unexpectedly due to the skb_under_panic Oops. This can lead to system instability, potential denial of service, or interruption of wireless network functionality on affected devices.

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Executive Summary

This vulnerability exists in the Linux kernel's wifi component, specifically in the wlcore driver. It occurs because the skb (socket buffer) headroom is sometimes insufficient before performing an skb_push operation. This can lead to an skb_under_panic Oops error triggered by the wl1271_tx_work function. Essentially, the headroom available is less than required, causing instability or crashes.

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