CVE-2026-22988 Details
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.
A vulnerability in the Linux kernel's ARP handling has been addressed. The issue arose because the function 'dev_hard_header()' can modify the 'skb->head' pointer, contrary to the assumption made by 'arp_create()'. This vulnerability affects the Linux kernel stable tree.
Users can update to the latest version of the Linux kernel stable tree, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
No SSVC data is available for this CVE.
References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://git.kernel.org/stable/c/029935507d0af6553c45380fbf6feecf756fd226 | kernel.org | Patch |
| https://git.kernel.org/stable/c/393525dee5c39acff8d6705275d7fcaabcfb7f0a | kernel.org | Patch |
| https://git.kernel.org/stable/c/70bddc16491ef4681f3569b3a2c80309a3edcdd1 | kernel.org | Patch |
| https://git.kernel.org/stable/c/949647e7771a4a01963fe953a96d81fba7acecf3 | kernel.org | Patch |
| https://git.kernel.org/stable/c/c92510f5e3f82ba11c95991824a41e59a9c5ed81 | kernel.org | Patch |
| https://git.kernel.org/stable/c/dd6ccec088adff4bdf33e2b2dd102df20a7128fa | kernel.org | Patch |
| https://git.kernel.org/stable/c/e432dbff342b95fe44645f9a90fcf333c80f4b5e | kernel.org | Patch |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| NVD-CWE-noinfo | Insufficient Information to Classify Weakness | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| linux linux kernel | >= 6.12.64, < 6.12.66 >= 6.18.4, < 6.18.6 6.1.160 6.6.120 6.19 rc4 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | kernel.org |
| Apr 27, 2026 | CVE Modified | kernel.org |
| Feb 26, 2026 | Initial Analysis | [email protected] |
| Jan 23, 2026 | New CVE Received | kernel.org |