Vulnerability-Lookup

GHSA-PW9R-HR33-FHF6

Vulnerability from github – Published: 2026-05-01 15:30 – Updated: 2026-05-03 09:33

Details

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

bpf: Fix regsafe() for pointers to packet

In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N regsafe() may return true which may lead to current state with valid packet range not being explored. Fix the bug.

Severity ?

7.8 (High)


                  
                    CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

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{
  "affected": [],
  "aliases": [
    "CVE-2026-43030"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-01T15:16:47Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Fix regsafe() for pointers to packet\n\nIn case rold-\u003ereg-\u003erange == BEYOND_PKT_END \u0026\u0026 rcur-\u003ereg-\u003erange == N\nregsafe() may return true which may lead to current state with\nvalid packet range not being explored. Fix the bug.",
  "id": "GHSA-pw9r-hr33-fhf6",
  "modified": "2026-05-03T09:33:10Z",
  "published": "2026-05-01T15:30:37Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43030"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/015a74476dc1ab6923d89f1ee009aaf43faa7185"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/37db6b9726d0bcf91cbdf9d63b558c50da49f968"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7241da033fdc507b920e092dab1f97b945cb0370"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8aebe18069394f4a79d2d82080a0f806da449996"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a8502a79e832b861e99218cbd2d8f4312d62e225"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b52f6d0ef7b308f9d05bbddb78749852f28e8e40"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b99d82706bd1511bb875e3de7154698fd9215c99"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca995b1462ec6db1e869100ba1fb7356bd3f22f0"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2026-43030 (GCVE-0-2026-43030)

Vulnerability from cvelistv5 – Published: 2026-05-01 14:15 – Updated: 2026-05-03 05:46

Title

bpf: Fix regsafe() for pointers to packet

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix regsafe() for pointers to packet In case rold->reg->range == BEYOND_PKT_END && rcur->reg->range == N regsafe() may return true which may lead to current state with valid packet range not being explored. Fix the bug.

Severity ?

7.8 (High)


                        
                          CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Assigner

Linux

References

URL

Tags

	https://git.kernel.org/stable/c/b52f6d0ef7b308f9d…
	https://git.kernel.org/stable/c/37db6b9726d0bcf91…
	https://git.kernel.org/stable/c/015a74476dc1ab692…
	https://git.kernel.org/stable/c/b99d82706bd1511bb…
	https://git.kernel.org/stable/c/7241da033fdc507b9…
	https://git.kernel.org/stable/c/8aebe18069394f4a7…
	https://git.kernel.org/stable/c/ca995b1462ec6db1e…
	https://git.kernel.org/stable/c/a8502a79e832b861e…

Impacted products

Vendor

Product

Version

Linux

Affected: 95b6ec733752b31bfd166c4609d2c1b5cdde9b47 , < b52f6d0ef7b308f9d05bbddb78749852f28e8e40 (git)
Affected: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 , < 37db6b9726d0bcf91cbdf9d63b558c50da49f968 (git)
Affected: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 , < 015a74476dc1ab6923d89f1ee009aaf43faa7185 (git)
Affected: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 , < b99d82706bd1511bb875e3de7154698fd9215c99 (git)
Affected: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 , < 7241da033fdc507b920e092dab1f97b945cb0370 (git)
Affected: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 , < 8aebe18069394f4a79d2d82080a0f806da449996 (git)
Affected: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 , < ca995b1462ec6db1e869100ba1fb7356bd3f22f0 (git)
Affected: 6d94e741a8ff818e5518da8257f5ca0aaed1f269 , < a8502a79e832b861e99218cbd2d8f4312d62e225 (git)

Linux

Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.10.253 , ≤ 5.10.* (semver)
Unaffected: 5.15.203 , ≤ 5.15.* (semver)
Unaffected: 6.1.168 , ≤ 6.1.* (semver)
Unaffected: 6.6.134 , ≤ 6.6.* (semver)
Unaffected: 6.12.81 , ≤ 6.12.* (semver)
Unaffected: 6.18.22 , ≤ 6.18.* (semver)
Unaffected: 6.19.12 , ≤ 6.19.* (semver)
Unaffected: 7.0 , ≤ * (original_commit_for_fix)

Show details on NVD website

JSON

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/verifier.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
              "version": "95b6ec733752b31bfd166c4609d2c1b5cdde9b47",
              "versionType": "git"
            },
            {
              "lessThan": "37db6b9726d0bcf91cbdf9d63b558c50da49f968",
              "status": "affected",
              "version": "6d94e741a8ff818e5518da8257f5ca0aaed1f269",
              "versionType": "git"
            },
            {
              "lessThan": "015a74476dc1ab6923d89f1ee009aaf43faa7185",
              "status": "affected",
              "version": "6d94e741a8ff818e5518da8257f5ca0aaed1f269",
              "versionType": "git"
            },
            {
              "lessThan": "b99d82706bd1511bb875e3de7154698fd9215c99",
              "status": "affected",
              "version": "6d94e741a8ff818e5518da8257f5ca0aaed1f269",
              "versionType": "git"
            },
            {
              "lessThan": "7241da033fdc507b920e092dab1f97b945cb0370",
              "status": "affected",
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              "versionType": "git"
            },
            {
              "lessThan": "8aebe18069394f4a79d2d82080a0f806da449996",
              "status": "affected",
              "version": "6d94e741a8ff818e5518da8257f5ca0aaed1f269",
              "versionType": "git"
            },
            {
              "lessThan": "ca995b1462ec6db1e869100ba1fb7356bd3f22f0",
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              "versionType": "git"
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              "versionType": "git"
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          ]
        },
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          "product": "Linux",
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.11"
            },
            {
              "lessThan": "5.11",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.253",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.203",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.168",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.134",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.81",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.12",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.0",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.253",
                  "versionStartIncluding": "5.10.155",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.203",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.168",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.134",
                  "versionStartIncluding": "5.11",
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                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.81",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.22",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                  "versionStartIncluding": "5.11",
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                },
                {
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                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "5.11",
                  "vulnerable": true
                }
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              "negate": false,
              "operator": "OR"
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          "lang": "en",
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        },
        {
          "url": "https://git.kernel.org/stable/c/a8502a79e832b861e99218cbd2d8f4312d62e225"
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      ],
      "title": "bpf: Fix regsafe() for pointers to packet",
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        "engine": "bippy-1.2.0"
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  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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    "cveId": "CVE-2026-43030",
    "datePublished": "2026-05-01T14:15:30.564Z",
    "dateReserved": "2026-05-01T14:12:55.977Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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-PW9R-HR33-FHF6

CVE-2026-43030 (GCVE-0-2026-43030)

Tags

Sightings

Nomenclature