CVE-2026-22988
High
Description
In the Linux kernel, the following vulnerability has been resolved: arp: do not assume dev_hard_header() does not change skb->head arp_create() is the only dev_hard_header() caller making assumption about skb->head being unchanged. A recent commit broke this assumption. Initialize @arp pointer after dev_hard_header() call.
SeverityHigh
CVSS7.8
Exploit probability—
Product
Linux Kernel
PublishedJan 23, 2026
First seenJan 23, 2026
How to fix
Update
- linux linux_kernel6.12.66, 6.18.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 6.12.64 ≤ v < 6.12.66, 6.18.4 ≤ v < 6.18.6, 6.1.160, 6.6.120, 6.19 | 6.12.66, 6.18.6 |
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