Vulnerability-Lookup

GHSA-FQX6-8JF8-VFJ2

Vulnerability from github – Published: 2026-06-24 18:32 – Updated: 2026-06-24 18:32

Details

In the Linux kernel, the following vulnerability has been resolved:

bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb

bpf_prog_test_run_skb() calls eth_type_trans() first and then uses skb->protocol to initialize sk family and address fields for the test run.

For IPv4 and IPv6 packets, it may access ip_hdr(skb) or ipv6_hdr(skb) even when the provided test input only contains an Ethernet header.

Reject the input earlier if the Ethernet frame carries IPv4/IPv6 EtherType but the L3 header is too short.

Fold the IPv4/IPv6 header length checks into the existing protocol switch and return -EINVAL before accessing the network headers.

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{
  "affected": [],
  "aliases": [
    "CVE-2026-53074"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-24T17:17:21Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb\n\nbpf_prog_test_run_skb() calls eth_type_trans() first and then uses\nskb-\u003eprotocol to initialize sk family and address fields for the test\nrun.\n\nFor IPv4 and IPv6 packets, it may access ip_hdr(skb) or ipv6_hdr(skb)\neven when the provided test input only contains an Ethernet header.\n\nReject the input earlier if the Ethernet frame carries IPv4/IPv6\nEtherType but the L3 header is too short.\n\nFold the IPv4/IPv6 header length checks into the existing protocol\nswitch and return -EINVAL before accessing the network headers.",
  "id": "GHSA-fqx6-8jf8-vfj2",
  "modified": "2026-06-24T18:32:46Z",
  "published": "2026-06-24T18:32:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-53074"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0a04db240effd85773f66244645a28cedddb72d2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12bec2bd4b76d81c5d3996bd14ec1b7f4d983747"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1f882c492d46f90bdb36f4936876c88c28dab21c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6a9f38d5ff11e00bc54baab752642978805e81eb"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6def5fe753cbe5b279ee5fd10327b2611cbddaca"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7254267799d083280c0e53effc101a33add95f7b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8042240412de3222d27b31e89d29336961cad9e4"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e6aa481f21fc7a41ed344767ea25aae9d03fae71"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2026-53074 (GCVE-0-2026-53074)

Vulnerability from cvelistv5 – Published: 2026-06-24 16:30 – Updated: 2026-06-24 16:30

Title

bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb bpf_prog_test_run_skb() calls eth_type_trans() first and then uses skb->protocol to initialize sk family and address fields for the test run. For IPv4 and IPv6 packets, it may access ip_hdr(skb) or ipv6_hdr(skb) even when the provided test input only contains an Ethernet header. Reject the input earlier if the Ethernet frame carries IPv4/IPv6 EtherType but the L3 header is too short. Fold the IPv4/IPv6 header length checks into the existing protocol switch and return -EINVAL before accessing the network headers.

Severity

No CVSS data available.

Assigner

Linux

References

8 references

URL	Tags
https://git.kernel.org/stable/c/7254267799d083280…
https://git.kernel.org/stable/c/6a9f38d5ff11e00bc…
https://git.kernel.org/stable/c/e6aa481f21fc7a41e…
https://git.kernel.org/stable/c/0a04db240effd8577…
https://git.kernel.org/stable/c/1f882c492d46f90bd…
https://git.kernel.org/stable/c/8042240412de3222d…
https://git.kernel.org/stable/c/6def5fe753cbe5b27…
https://git.kernel.org/stable/c/12bec2bd4b76d81c5…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: fa5cb548ced61b9d3095f32f8a7e427a248c65ee , < 7254267799d083280c0e53effc101a33add95f7b (git) Affected: fa5cb548ced61b9d3095f32f8a7e427a248c65ee , < 6a9f38d5ff11e00bc54baab752642978805e81eb (git) Affected: fa5cb548ced61b9d3095f32f8a7e427a248c65ee , < e6aa481f21fc7a41ed344767ea25aae9d03fae71 (git) Affected: fa5cb548ced61b9d3095f32f8a7e427a248c65ee , < 0a04db240effd85773f66244645a28cedddb72d2 (git) Affected: fa5cb548ced61b9d3095f32f8a7e427a248c65ee , < 1f882c492d46f90bdb36f4936876c88c28dab21c (git) Affected: fa5cb548ced61b9d3095f32f8a7e427a248c65ee , < 8042240412de3222d27b31e89d29336961cad9e4 (git) Affected: fa5cb548ced61b9d3095f32f8a7e427a248c65ee , < 6def5fe753cbe5b279ee5fd10327b2611cbddaca (git) Affected: fa5cb548ced61b9d3095f32f8a7e427a248c65ee , < 12bec2bd4b76d81c5d3996bd14ec1b7f4d983747 (git)
Linux	Linux	Affected: 5.9 Unaffected: 0 , < 5.9 (semver) Unaffected: 5.10.258 , ≤ 5.10.* (semver) Unaffected: 5.15.209 , ≤ 5.15.* (semver) Unaffected: 6.1.175 , ≤ 6.1.* (semver) Unaffected: 6.6.141 , ≤ 6.6.* (semver) Unaffected: 6.12.91 , ≤ 6.12.* (semver) Unaffected: 6.18.33 , ≤ 6.18.* (semver) Unaffected: 7.0.10 , ≤ 7.0.* (semver) Unaffected: 7.1 , ≤ * (original_commit_for_fix)

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{
  "containers": {
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        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/bpf/test_run.c"
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              "status": "unaffected",
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              "status": "unaffected",
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            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.209",
              "versionType": "semver"
            },
            {
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              "status": "unaffected",
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              "versionType": "semver"
            },
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.91",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.33",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
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              "versionType": "original_commit_for_fix"
            }
          ]
        }
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        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb\n\nbpf_prog_test_run_skb() calls eth_type_trans() first and then uses\nskb-\u003eprotocol to initialize sk family and address fields for the test\nrun.\n\nFor IPv4 and IPv6 packets, it may access ip_hdr(skb) or ipv6_hdr(skb)\neven when the provided test input only contains an Ethernet header.\n\nReject the input earlier if the Ethernet frame carries IPv4/IPv6\nEtherType but the L3 header is too short.\n\nFold the IPv4/IPv6 header length checks into the existing protocol\nswitch and return -EINVAL before accessing the network headers."
        }
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        "dateUpdated": "2026-06-24T16:30:15.337Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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        {
          "url": "https://git.kernel.org/stable/c/12bec2bd4b76d81c5d3996bd14ec1b7f4d983747"
        }
      ],
      "title": "bpf: reject short IPv4/IPv6 inputs in bpf_prog_test_run_skb",
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        "engine": "bippy-1.2.0"
      }
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    "datePublished": "2026-06-24T16:30:15.337Z",
    "dateReserved": "2026-06-09T07:44:35.383Z",
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  },
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}

Sightings

Author	Source	Type	Date	Other

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.

Action not permitted

GHSA-FQX6-8JF8-VFJ2

CVE-2026-53074 (GCVE-0-2026-53074)

Tags

Sightings

Nomenclature