FKIE_CVE-2026-53110

Vulnerability from fkie_nvd - Published: 2026-06-24 17:17 - Updated: 2026-06-28 08:16
Severity
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Zero-extend bpf prog return values and kfunc arguments s390x ABI requires callers to zero-extend unsigned arguments and sign-extend signed arguments, and callees to zero-extend unsigned return values and sign-extend signed return values. s390 BPF JIT currently implements only sign extension. Fix this omission and implement zero extension too.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/202e42e4aa890172366354b233c42c73107a3f59
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/366b0e05ee24f5ba62bdc7ec1346038258b9a797
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/44c4f999b03f55debb1a0c5ab5c1796895a1adf8
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/834918a77be51419383bf1dda9f02b81ecf26b34
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/edc90a12073b9a530064a99945c183dde120cb99
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/net/bpf_jit_comp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "edc90a12073b9a530064a99945c183dde120cb99",
              "status": "affected",
              "version": "528eb2cb87bc1353235a6384696b4849bde8b0ba",
              "versionType": "git"
            },
            {
              "lessThan": "44c4f999b03f55debb1a0c5ab5c1796895a1adf8",
              "status": "affected",
              "version": "528eb2cb87bc1353235a6384696b4849bde8b0ba",
              "versionType": "git"
            },
            {
              "lessThan": "366b0e05ee24f5ba62bdc7ec1346038258b9a797",
              "status": "affected",
              "version": "528eb2cb87bc1353235a6384696b4849bde8b0ba",
              "versionType": "git"
            },
            {
              "lessThan": "834918a77be51419383bf1dda9f02b81ecf26b34",
              "status": "affected",
              "version": "528eb2cb87bc1353235a6384696b4849bde8b0ba",
              "versionType": "git"
            },
            {
              "lessThan": "202e42e4aa890172366354b233c42c73107a3f59",
              "status": "affected",
              "version": "528eb2cb87bc1353235a6384696b4849bde8b0ba",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/s390/net/bpf_jit_comp.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.3"
            },
            {
              "lessThan": "6.3",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.141",
              "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",
              "version": "7.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/bpf: Zero-extend bpf prog return values and kfunc arguments\n\ns390x ABI requires callers to zero-extend unsigned arguments and\nsign-extend signed arguments, and callees to zero-extend unsigned\nreturn values and sign-extend signed return values.\n\ns390 BPF JIT currently implements only sign extension. Fix this\nomission and implement zero extension too."
    }
  ],
  "id": "CVE-2026-53110",
  "lastModified": "2026-06-28T08:16:34.213",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 7.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 5.9,
        "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-06-24T17:17:25.357",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/202e42e4aa890172366354b233c42c73107a3f59"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/366b0e05ee24f5ba62bdc7ec1346038258b9a797"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/44c4f999b03f55debb1a0c5ab5c1796895a1adf8"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/834918a77be51419383bf1dda9f02b81ecf26b34"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/edc90a12073b9a530064a99945c183dde120cb99"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Received"
}


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