Bug 2439889 (CVE-2025-71222) - CVE-2025-71222 kernel: Linux kernel: Denial of Service in wlcore due to insufficient skb headroom
Summary: CVE-2025-71222 kernel: Linux kernel: Denial of Service in wlcore due to insuf...
Keywords:
Status: NEW
Alias: CVE-2025-71222
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-02-14 17:01 UTC by OSIDB Bzimport
Modified: 2026-02-17 04:45 UTC (History)
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Description OSIDB Bzimport 2026-02-14 17:01:38 UTC 
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).
Comment 1 Alexander B 2026-02-16 14:42:32 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2026021426-CVE-2025-71222-1437@gregkh/T
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