CVE-2026-22988

EUVD-2026-4299
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.5 MEDIUM
LOCAL
LOW
LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Affected Products (NVD)
VendorProductVersion
linuxlinux_kernel
6.12.64 ≤
𝑥
< 6.12.66
linuxlinux_kernel
6.18.4 ≤
𝑥
< 6.18.6
linuxlinux_kernel
6.1.160
linuxlinux_kernel
6.6.120
linuxlinux_kernel
6.19:rc4
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
linux
bookworm
6.1.159-1
fixed
bookworm (security)
6.1.164-1
fixed
bullseye
5.10.223-1
fixed
bullseye (security)
5.10.251-1
fixed
forky
6.19.10-1
fixed
sid
6.19.10-1
fixed
trixie
6.12.73-1
fixed
trixie (security)
6.12.74-2
fixed
Vulnerability Media Exposure
References
https://git.kernel.org/stable/c/029935507d0af6553c45380fbf6feecf756fd226
https://git.kernel.org/stable/c/393525dee5c39acff8d6705275d7fcaabcfb7f0a
https://git.kernel.org/stable/c/70bddc16491ef4681f3569b3a2c80309a3edcdd1
https://git.kernel.org/stable/c/949647e7771a4a01963fe953a96d81fba7acecf3
https://git.kernel.org/stable/c/c92510f5e3f82ba11c95991824a41e59a9c5ed81
https://git.kernel.org/stable/c/dd6ccec088adff4bdf33e2b2dd102df20a7128fa
https://git.kernel.org/stable/c/e432dbff342b95fe44645f9a90fcf333c80f4b5e