fkie_cve-2024-35874
Vulnerability from fkie_nvd
Published
2024-05-19 09:15
Modified
2024-12-30 17:37
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: aio: Fix null ptr deref in aio_complete() wakeup list_del_init_careful() needs to be the last access to the wait queue entry - it effectively unlocks access. Previously, finish_wait() would see the empty list head and skip taking the lock, and then we'd return - but the completion path would still attempt to do the wakeup after the task_struct pointer had been overwritten.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/9678bcc6234d83759fe091c197f5017a32b468daPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/caeb4b0a11b3393e43f7fa8e0a5a18462acc66bdPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/9678bcc6234d83759fe091c197f5017a32b468daPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/caeb4b0a11b3393e43f7fa8e0a5a18462acc66bdPatch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel 6.9
linux linux_kernel 6.9


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7733C2C9-77AB-41F9-BE33-99FF60A64DBB",
              "versionEndExcluding": "6.8.5",
              "versionStartIncluding": "6.8",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc1:*:*:*:*:*:*",
              "matchCriteriaId": "22BEDD49-2C6D-402D-9DBF-6646F6ECD10B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:6.9:rc2:*:*:*:*:*:*",
              "matchCriteriaId": "DF73CB2A-DFFD-46FB-9BFE-AA394F27EA37",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\naio: Fix null ptr deref in aio_complete() wakeup\n\nlist_del_init_careful() needs to be the last access to the wait queue\nentry - it effectively unlocks access.\n\nPreviously, finish_wait() would see the empty list head and skip taking\nthe lock, and then we\u0027d return - but the completion path would still\nattempt to do the wakeup after the task_struct pointer had been\noverwritten."
    },
    {
      "lang": "es",
      "value": " En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: aio: corrige el ptr deref null en aio_complete() wakeup list_del_init_careful() debe ser el \u00faltimo acceso a la entrada de la cola de espera; efectivamente desbloquea el acceso. Anteriormente, Finish_wait() ve\u00eda el encabezado de la lista vac\u00eda y omit\u00eda tomar el bloqueo, y luego regresabamos, pero la ruta de finalizaci\u00f3n a\u00fan intentar\u00eda realizar la reactivaci\u00f3n despu\u00e9s de que se hubiera sobrescrito el puntero task_struct."
    }
  ],
  "id": "CVE-2024-35874",
  "lastModified": "2024-12-30T17:37:18.307",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-05-19T09:15:08.767",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9678bcc6234d83759fe091c197f5017a32b468da"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/caeb4b0a11b3393e43f7fa8e0a5a18462acc66bd"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/9678bcc6234d83759fe091c197f5017a32b468da"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/caeb4b0a11b3393e43f7fa8e0a5a18462acc66bd"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-476"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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