CVE-2026-22988 — Expired Pointer Dereference in Linux
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.68%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJan 23
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6
Affected Packages4 packages
▶CVEListV5linux/linux17e7386234f740f3e7d5e58a47b5847ea34c3bc2 — e432dbff342b95fe44645f9a90fcf333c80f4b5e+10
Patches
🔴Vulnerability Details
2OSV▶
CVE-2026-22988: 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↗2026-01-23
GHSA▶
GHSA-5fwh-qcfv-38cc: 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 t↗2026-01-23