FKIE_CVE-2024-26710

Vulnerability from fkie_nvd - Published: 2024-04-03 15:15 - Updated: 2026-06-17 07:18
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: powerpc/kasan: Limit KASAN thread size increase to 32KB KASAN is seen to increase stack usage, to the point that it was reported to lead to stack overflow on some 32-bit machines (see link). To avoid overflows the stack size was doubled for KASAN builds in commit 3e8635fb2e07 ("powerpc/kasan: Force thread size increase with KASAN"). However with a 32KB stack size to begin with, the doubling leads to a 64KB stack, which causes build errors: arch/powerpc/kernel/switch.S:249: Error: operand out of range (0x000000000000fe50 is not between 0xffffffffffff8000 and 0x0000000000007fff) Although the asm could be reworked, in practice a 32KB stack seems sufficient even for KASAN builds - the additional usage seems to be in the 2-3KB range for a 64-bit KASAN build. So only increase the stack for KASAN if the stack size is < 32KB.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4cc31fa07445879a13750cb061bb8c2654975fcbPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b29b16bd836a838b7690f80e37f8376414c74cbePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f1acb109505d983779bbb7e20a1ee6244d2b5736Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f9a4c401bf4c5af3437ad221c0a5880a518068d4
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4297217bcf1f0948a19c2bacc6b68d92e7778ad9Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/4cc31fa07445879a13750cb061bb8c2654975fcbPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/b29b16bd836a838b7690f80e37f8376414c74cbePatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f1acb109505d983779bbb7e20a1ee6244d2b5736Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/include/asm/thread_info.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "f9a4c401bf4c5af3437ad221c0a5880a518068d4",
              "status": "affected",
              "version": "9ccf64e763aca088b0d25c1274af42b1a6a45135",
              "versionType": "git"
            },
            {
              "lessThan": "4cc31fa07445879a13750cb061bb8c2654975fcb",
              "status": "affected",
              "version": "b38014874530d3776de75679315e8c1fe04aa89b",
              "versionType": "git"
            },
            {
              "lessThan": "b29b16bd836a838b7690f80e37f8376414c74cbe",
              "status": "affected",
              "version": "58f396513cb1fa4ef91838c78698d458100cc27c",
              "versionType": "git"
            },
            {
              "lessThan": "f1acb109505d983779bbb7e20a1ee6244d2b5736",
              "status": "affected",
              "version": "18f14afe281648e31ed35c9ad2fcb724c4838ad9",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/powerpc/include/asm/thread_info.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "6.1.76",
              "status": "affected",
              "version": "6.1.75",
              "versionType": "semver"
            },
            {
              "lessThan": "6.6.18",
              "status": "affected",
              "version": "6.6.14",
              "versionType": "semver"
            },
            {
              "lessThan": "6.7.6",
              "status": "affected",
              "version": "6.7.2",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E45DC1AD-08BC-4CC1-A959-E47949DF8C4D",
              "versionEndExcluding": "6.1.79",
              "versionStartIncluding": "6.1.75",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "D414D75C-C82B-4167-B493-0F5458C4D8FC",
              "versionEndExcluding": "6.6.18",
              "versionStartIncluding": "6.6.14",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "B739F4F8-3AC5-4589-83F6-43218BC20877",
              "versionEndExcluding": "6.7.6",
              "versionStartIncluding": "6.7.2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/kasan: Limit KASAN thread size increase to 32KB\n\nKASAN is seen to increase stack usage, to the point that it was reported\nto lead to stack overflow on some 32-bit machines (see link).\n\nTo avoid overflows the stack size was doubled for KASAN builds in\ncommit 3e8635fb2e07 (\"powerpc/kasan: Force thread size increase with\nKASAN\").\n\nHowever with a 32KB stack size to begin with, the doubling leads to a\n64KB stack, which causes build errors:\n  arch/powerpc/kernel/switch.S:249: Error: operand out of range (0x000000000000fe50 is not between 0xffffffffffff8000 and 0x0000000000007fff)\n\nAlthough the asm could be reworked, in practice a 32KB stack seems\nsufficient even for KASAN builds - the additional usage seems to be in\nthe 2-3KB range for a 64-bit KASAN build.\n\nSo only increase the stack for KASAN if the stack size is \u003c 32KB."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: powerpc/kasan: limitar el aumento del tama\u00f1o del subproceso KASAN a 32 KB. Se considera que KASAN aumenta el uso de la pila, hasta el punto de que se inform\u00f3 que provoca un desbordamiento de la pila en algunas m\u00e1quinas de 32 bits ( ver enlace). Para evitar desbordamientos, el tama\u00f1o de la pila se duplic\u00f3 para las compilaciones de KASAN en el commit 3e8635fb2e07 (\"powerpc/kasan: Forzar el aumento del tama\u00f1o del subproceso con KASAN\"). Sin embargo, con un tama\u00f1o de pila de 32 KB para empezar, la duplicaci\u00f3n conduce a una pila de 64 KB, lo que provoca errores de compilaci\u00f3n: arch/powerpc/kernel/switch.S:249: Error: operando fuera de rango (0x000000000000fe50 no est\u00e1 entre 0xffffffffffff8000 y 0x00000000000007fff) Aunque el conjunto podr\u00eda modificarse, en la pr\u00e1ctica una pila de 32 KB parece suficiente incluso para compilaciones KASAN; el uso adicional parece estar en el rango de 2 a 3 KB para una compilaci\u00f3n KASAN de 64 bits. Por lo tanto, solo aumente la pila para KASAN si el tama\u00f1o de la pila es \u0026lt;32 KB."
    }
  ],
  "id": "CVE-2024-26710",
  "lastModified": "2026-06-17T07:18:09.263",
  "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"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-26710",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-04-03T17:38:18.725321Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-04-03T15:15:53.487",
  "references": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4cc31fa07445879a13750cb061bb8c2654975fcb"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b29b16bd836a838b7690f80e37f8376414c74cbe"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f1acb109505d983779bbb7e20a1ee6244d2b5736"
    },
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "url": "https://git.kernel.org/stable/c/f9a4c401bf4c5af3437ad221c0a5880a518068d4"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4297217bcf1f0948a19c2bacc6b68d92e7778ad9"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/4cc31fa07445879a13750cb061bb8c2654975fcb"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/b29b16bd836a838b7690f80e37f8376414c74cbe"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Patch"
      ],
      "url": "https://git.kernel.org/stable/c/f1acb109505d983779bbb7e20a1ee6244d2b5736"
    }
  ],
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}



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