FKIE_CVE-2026-22988

Vulnerability from fkie_nvd - Published: 2026-01-23 16:15 - Updated: 2026-02-26 18:51
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/029935507d0af6553c45380fbf6feecf756fd226Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/393525dee5c39acff8d6705275d7fcaabcfb7f0aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/70bddc16491ef4681f3569b3a2c80309a3edcdd1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/949647e7771a4a01963fe953a96d81fba7acecf3Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c92510f5e3f82ba11c95991824a41e59a9c5ed81Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dd6ccec088adff4bdf33e2b2dd102df20a7128faPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e432dbff342b95fe44645f9a90fcf333c80f4b5ePatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 6.1.160
linux linux_kernel 6.6.120
linux linux_kernel 6.19
To clipboard 

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  "descriptions": [
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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\narp: do not assume dev_hard_header() does not change skb-\u003ehead\n\narp_create() is the only dev_hard_header() caller\nmaking assumption about skb-\u003ehead being unchanged.\n\nA recent commit broke this assumption.\n\nInitialize @arp pointer after dev_hard_header() call."
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  "id": "CVE-2026-22988",
  "lastModified": "2026-02-26T18:51:21.247",
  "metrics": {
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          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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  "published": "2026-01-23T16:15:54.860",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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