Vulnerability-Lookup

GHSA-67FG-RV2J-G7R7

Vulnerability from github – Published: 2026-05-08 15:31 – Updated: 2026-05-11 09:30

Details

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

bpf: Properly mark live registers for indirect jumps

For a gotox rX instruction the rX register should be marked as used in the compute_insn_live_regs() function. Fix this.

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-2026-43321"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-08T14:16:40Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Properly mark live registers for indirect jumps\n\nFor a `gotox rX` instruction the rX register should be marked as used\nin the compute_insn_live_regs() function. Fix this.",
  "id": "GHSA-67fg-rv2j-g7r7",
  "modified": "2026-05-11T09:30:29Z",
  "published": "2026-05-08T15:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43321"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/7beae54111c34ca63357ef120e115889b915beb5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d1aab1ca576c90192ba961094d51b0be6355a4d6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/df02c3ff3be4bf998812c8c8e79d10db1329d535"
    }
  ],
  "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-2026-43321 (GCVE-0-2026-43321)

Vulnerability from cvelistv5 – Published: 2026-05-08 13:26 – Updated: 2026-05-11 22:22

Title

bpf: Properly mark live registers for indirect jumps

Summary

In the Linux kernel, the following vulnerability has been resolved: bpf: Properly mark live registers for indirect jumps For a `gotox rX` instruction the rX register should be marked as used in the compute_insn_live_regs() function. Fix this.

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

2 references

URL	Tags
https://git.kernel.org/stable/c/7beae54111c34ca63…
https://git.kernel.org/stable/c/d1aab1ca576c90192…

Impacted products

2 products

Vendor	Product	Version
Linux	Linux	Affected: 493d9e0d608339a32f568504d5fd411a261bb0af , < 7beae54111c34ca63357ef120e115889b915beb5 (git) Affected: 493d9e0d608339a32f568504d5fd411a261bb0af , < d1aab1ca576c90192ba961094d51b0be6355a4d6 (git)
Linux	Linux	Affected: 6.19 Unaffected: 0 , < 6.19 (semver) Unaffected: 6.19.6 , ≤ 6.19.* (semver) Unaffected: 7.0 , ≤ * (original_commit_for_fix)

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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": [
            {
              "lessThan": "7beae54111c34ca63357ef120e115889b915beb5",
              "status": "affected",
              "version": "493d9e0d608339a32f568504d5fd411a261bb0af",
              "versionType": "git"
            },
            {
              "lessThan": "d1aab1ca576c90192ba961094d51b0be6355a4d6",
              "status": "affected",
              "version": "493d9e0d608339a32f568504d5fd411a261bb0af",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "kernel/bpf/verifier.c"
          ],
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          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.19"
            },
            {
              "lessThan": "6.19",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.19.*",
              "status": "unaffected",
              "version": "6.19.6",
              "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": "6.19.6",
                  "versionStartIncluding": "6.19",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0",
                  "versionStartIncluding": "6.19",
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                }
              ],
              "negate": false,
              "operator": "OR"
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        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          }
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      "providerMetadata": {
        "dateUpdated": "2026-05-11T22:22:18.192Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
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      "references": [
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          "url": "https://git.kernel.org/stable/c/7beae54111c34ca63357ef120e115889b915beb5"
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        {
          "url": "https://git.kernel.org/stable/c/d1aab1ca576c90192ba961094d51b0be6355a4d6"
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      ],
      "title": "bpf: Properly mark live registers for indirect jumps",
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2026-43321",
    "datePublished": "2026-05-08T13:26:15.600Z",
    "dateReserved": "2026-05-01T14:12:56.001Z",
    "dateUpdated": "2026-05-11T22:22:18.192Z",
    "state": "PUBLISHED"
  },
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  "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-67FG-RV2J-G7R7

CVE-2026-43321 (GCVE-0-2026-43321)

Tags

Sightings

Nomenclature