Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | >= 6.12.64, < 6.12.66 |
References
- https://git.kernel.org/stable/c/029935507d0af6553c45380fbf6feecf756fd226Patch
- https://git.kernel.org/stable/c/393525dee5c39acff8d6705275d7fcaabcfb7f0aPatch
- https://git.kernel.org/stable/c/70bddc16491ef4681f3569b3a2c80309a3edcdd1Patch
- https://git.kernel.org/stable/c/949647e7771a4a01963fe953a96d81fba7acecf3Patch
- https://git.kernel.org/stable/c/c92510f5e3f82ba11c95991824a41e59a9c5ed81Patch
- https://git.kernel.org/stable/c/dd6ccec088adff4bdf33e2b2dd102df20a7128faPatch
- https://git.kernel.org/stable/c/e432dbff342b95fe44645f9a90fcf333c80f4b5ePatch
FAQ
What is CVE-2026-22988?
CVE-2026-22988 is a vulnerability with a CVSS score of 7.8 (HIGH). 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...
How severe is CVE-2026-22988?
CVE-2026-22988 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-22988?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.