CVE-2026-22988

MEDIUM

Linux kernel - Buffer Overflow

Title source: llm

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.

References (7)

[Patch] https://git.kernel.org/stable/c/029935507d0af6553c45380fbf6feecf756fd226

[Patch] https://git.kernel.org/stable/c/393525dee5c39acff8d6705275d7fcaabcfb7f0a

[Patch] https://git.kernel.org/stable/c/70bddc16491ef4681f3569b3a2c80309a3edcdd1

[Patch] https://git.kernel.org/stable/c/949647e7771a4a01963fe953a96d81fba7acecf3

[Patch] https://git.kernel.org/stable/c/c92510f5e3f82ba11c95991824a41e59a9c5ed81

[Patch] https://git.kernel.org/stable/c/dd6ccec088adff4bdf33e2b2dd102df20a7128fa

[Patch] https://git.kernel.org/stable/c/e432dbff342b95fe44645f9a90fcf333c80f4b5e

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 3.0%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Classification

Status published

Affected Products (8)

linux/Kernel < 6.1.161linux

linux/Kernel < 6.6.121linux

linux/Kernel < 6.12.66linux

linux/Kernel < 6.18.6linux

linux/linux_kernel < 6.12.66

linux/linux_kernel

linux/linux_kernel

linux/linux_kernel

Timeline

Published Jan 23, 2026

Tracked Since Feb 18, 2026