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

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-14 · updated 2026-06-17

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).

Affected products

• Linux kernel: from 2.6.32 before 5.10.250; from 5.11 before 5.15.200; from 5.16 before 6.1.163; from 6.2 before 6.6.124; from 6.7 before 6.12.70; from 6.13 before 6.18.10 — fixed in 5.10.250, 5.15.200, 6.1.163, 6.12.70, 6.18.10, 6.6.124

How to fix

Upgrade to a fixed version: Linux kernel 5.10.250, 5.15.200, 6.1.163, 6.12.70. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/689a7980e4788e13e766763d53569fb78dea2513
• https://git.kernel.org/stable/c/71de0b6e04bbee5575caf9a1e4d424e7dcc50018
• https://git.kernel.org/stable/c/745a0810dbc96a0471e5f5e627ba1e978c3116d4
• https://git.kernel.org/stable/c/88295a55fefe5414e64293638b6f7549646e58ed
• https://git.kernel.org/stable/c/b167312390fdd461c81ead516f2b0b44e83a9edb
• https://git.kernel.org/stable/c/cd89a4656c03f8db0c57350aaec69cd3cfaa3522
• https://git.kernel.org/stable/c/e75665dd096819b1184087ba5718bd93beafff51

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