CVE-2026-22988
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2026-01-23

Last updated on: 2026-04-27

Assigner: kernel.org

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 Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-01-23
Last Modified
2026-04-27
Generated
2026-06-16
AI Q&A
2026-01-23
EPSS Evaluated
2026-06-15
NVD
CVE-2026-22988
EUVD
EUVD-2026-4299
Affected Vendors & Products
Showing 5 associated CPEs
Vendor Product Version / Range
linux linux_kernel 6.19
linux linux_kernel From 6.18.4 (inc) to 6.18.6 (exc)
linux linux_kernel From 6.12.64 (inc) to 6.12.66 (exc)
linux linux_kernel 6.1.160
linux linux_kernel 6.6.120
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability involves the Linux kernel's ARP implementation where the function arp_create() incorrectly assumes that the dev_hard_header() function does not modify the skb->head pointer. A recent code change broke this assumption, potentially leading to incorrect behavior. The fix was to initialize the arp pointer after the dev_hard_header() call to avoid relying on the unchanged skb->head.

Impact Analysis

The vulnerability could cause incorrect handling of ARP packets in the Linux kernel due to the assumption that skb->head remains unchanged after dev_hard_header() is called. This might lead to unexpected behavior or instability in network packet processing, potentially affecting network communication reliability.

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-22988. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart