CVE-2026-22988
arp: do not assume dev_hard_header() does not change skb->head
CVSS Score
7.8
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jan 23, 2026 |
| Last Updated | Apr 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
Linux / Linux
17e7386234f740f3e7d5e58a47b5847ea34c3bc2 < e432dbff342b95fe44645f9a90fcf333c80f4b5e 41a1a3140aff295dee8063906f70a514548105e8 < 393525dee5c39acff8d6705275d7fcaabcfb7f0a adee129db814474f2f81207bd182bf343832a52e < 70bddc16491ef4681f3569b3a2c80309a3edcdd1 1717357007db150c2d703f13f5695460e960f26c < 029935507d0af6553c45380fbf6feecf756fd226 5fe210533e3459197eabfdbf97327dacbdc04d60 < dd6ccec088adff4bdf33e2b2dd102df20a7128fa 91a2b25be07ce1a7549ceebbe82017551d2eec92 < 949647e7771a4a01963fe953a96d81fba7acecf3 db5b4e39c4e63700c68a7e65fc4e1f1375273476 < c92510f5e3f82ba11c95991824a41e59a9c5ed81
Linux / Linux
6.1.160 < 6.1.161 6.6.120 < 6.6.121 6.12.64 < 6.12.66 6.18.4 < 6.18.6
References
git.kernel.org: https://git.kernel.org/stable/c/e432dbff342b95fe44645f9a90fcf333c80f4b5e git.kernel.org: https://git.kernel.org/stable/c/393525dee5c39acff8d6705275d7fcaabcfb7f0a git.kernel.org: https://git.kernel.org/stable/c/70bddc16491ef4681f3569b3a2c80309a3edcdd1 git.kernel.org: https://git.kernel.org/stable/c/029935507d0af6553c45380fbf6feecf756fd226 git.kernel.org: https://git.kernel.org/stable/c/dd6ccec088adff4bdf33e2b2dd102df20a7128fa git.kernel.org: https://git.kernel.org/stable/c/949647e7771a4a01963fe953a96d81fba7acecf3 git.kernel.org: https://git.kernel.org/stable/c/c92510f5e3f82ba11c95991824a41e59a9c5ed81