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CVE-2026-22988

arp: do not assume dev_hard_header() does not change skb->head PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
Linux / Linuxaffected 17e7386234f740f3e7d5e58a47b5847ea34c3bc2 before e432dbff342b95fe44645f9a90fcf333c80f4b5e; affected 41a1a3140aff295dee8063906f70a514548105e8 before 393525dee5c39acff8d6705275d7fcaabcfb7f0a; affected adee129db814474f2f81207bd182bf343832a52e before 70bddc16491ef4681f3569b3a2c80309a3edcdd1; affected 1717357007db150c2d703f13f5695460e960f26c before 029935507d0af6553c45380fbf6feecf756fd226; affected 5fe210533e3459197eabfdbf97327dacbdc04d60 before dd6ccec088adff4bdf33e2b2dd102df20a7128fa; affected 91a2b25be07ce1a7549ceebbe82017551d2eec92 before 949647e7771a4a01963fe953a96d81fba7acecf3; affected db5b4e39c4e63700c68a7e65fc4e1f1375273476 before c92510f5e3f82ba11c95991824a41e59a9c5ed81
Linux / Linuxaffected 6.1.160 before 6.1.161; affected 6.6.120 before 6.6.121; affected 6.12.64 before 6.12.66; affected 6.18.4 before 6.18.6

CWE

No CWE identifiers supplied.

References