CVE-2026-22988 (GCVE-0-2026-22988)

Vulnerability from cvelistv5 – Published: 2026-01-23 15:24 – Updated: 2026-05-11 21:57
VLAI
Title
arp: do not assume dev_hard_header() does not change skb->head
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.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 17e7386234f740f3e7d5e58a47b5847ea34c3bc2 , < e432dbff342b95fe44645f9a90fcf333c80f4b5e (git)
Affected: 41a1a3140aff295dee8063906f70a514548105e8 , < 393525dee5c39acff8d6705275d7fcaabcfb7f0a (git)
Affected: adee129db814474f2f81207bd182bf343832a52e , < 70bddc16491ef4681f3569b3a2c80309a3edcdd1 (git)
Affected: 1717357007db150c2d703f13f5695460e960f26c , < 029935507d0af6553c45380fbf6feecf756fd226 (git)
Affected: 5fe210533e3459197eabfdbf97327dacbdc04d60 , < dd6ccec088adff4bdf33e2b2dd102df20a7128fa (git)
Affected: 91a2b25be07ce1a7549ceebbe82017551d2eec92 , < 949647e7771a4a01963fe953a96d81fba7acecf3 (git)
Affected: db5b4e39c4e63700c68a7e65fc4e1f1375273476 , < c92510f5e3f82ba11c95991824a41e59a9c5ed81 (git)
Create a notification for this product.
Linux Linux Affected: 6.1.160 , < 6.1.161 (semver)
Affected: 6.6.120 , < 6.6.121 (semver)
Affected: 6.12.64 , < 6.12.66 (semver)
Affected: 6.18.4 , < 6.18.6 (semver)
Create a notification for this product.
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{
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    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-28T07:17:56+00:00",
      "cve": "CVE-2026-22988",
      "id": "CVE-2026-22988",
      "initial_release_date": "2026-01-23T00:00:00+00:00",
      "product_status:known_affected": "14",
      "product_status:known_not_affected": "260",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: arp: do not assume dev_hard_header() does not change skb-\u003ehead",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-22988.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-07-15T05:34:19Z",
      "cve": "CVE-2026-22988",
      "id": "CVE-2026-22988",
      "initial_release_date": "2026-01-28T00:25:06Z",
      "product_status:first_fixed": "2",
      "product_status:known_not_affected": "224",
      "product_status:recommended": "310",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2026-22988",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-22988.json",
      "version": "24"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.