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CVE-2026-93222

Estado: RecibidaSin puntuar—

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

signal: avoid shared siginfo namespace rewrites

send_signal_locked() rewrites sender ids for the target namespace. Group sends reuse the same siginfo, so one recipient can affect the next.

Copy the siginfo before changing it.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-93222",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "7a0cf094944e2540758b7f957eb6846d5126f535",
              "lessThan": "e015d1ac6b43a23c52c5163299414ae77d7d4ae0",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "4ee7c4e4719a825052f42f02ec159b5b42b68fbc",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7a0cf094944e2540758b7f957eb6846d5126f535",
              "lessThan": "148b0dae2a1755beb873a2aab51fb191414f068c",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "7a0cf094944e2540758b7f957eb6846d5126f535",
              "lessThan": "6b1de022304ef85284c5933a5fb8492f6f54efc9",
              "versionType": "git"
            },
            {
              "status": "affected",
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              "lessThan": "03c8761e75d1619906bb503686f9cc1dfc6a67f4",
              "versionType": "git"
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            {
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            {
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              "version": "e897dd22800f02bd48aefb1511fff0b2ce96e94c",
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            {
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            },
            {
              "status": "affected",
              "version": "5.1.20",
              "lessThan": "5.2",
              "versionType": "semver"
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            {
              "status": "affected",
              "version": "5.2.3",
              "lessThan": "5.3",
              "versionType": "semver"
            }
          ],
          "programFiles": [
            "kernel/signal.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.3"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.3",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.270",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.221",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.109",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.50",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.4",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "kernel/signal.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T16:17:17.437",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/03c8761e75d1619906bb503686f9cc1dfc6a67f4",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/148b0dae2a1755beb873a2aab51fb191414f068c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/4ee7c4e4719a825052f42f02ec159b5b42b68fbc",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/6b1de022304ef85284c5933a5fb8492f6f54efc9",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/a246da20c8e4ae4319511c698b9f26ad0ad1769f",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b655c2040ce836afad5643842543567b31f8c11d",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/d19cdc167e696714509e87d3f7ae765b6e164589",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e015d1ac6b43a23c52c5163299414ae77d7d4ae0",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsignal: avoid shared siginfo namespace rewrites\n\nsend_signal_locked() rewrites sender ids for the target namespace.  Group\nsends reuse the same siginfo, so one recipient can affect the next.\n\nCopy the siginfo before changing it."
    }
  ],
  "lastModified": "2026-09-24T16:17:17.437",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}