cve-2024-50216
Vulnerability from cvelistv5
Published
2024-11-09 10:14
Modified
2024-12-19 09:35
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: xfs: fix finding a last resort AG in xfs_filestream_pick_ag When the main loop in xfs_filestream_pick_ag fails to find a suitable AG it tries to just pick the online AG. But the loop for that uses args->pag as loop iterator while the later code expects pag to be set. Fix this by reusing the max_pag case for this last resort, and also add a check for impossible case of no AG just to make sure that the uninitialized pag doesn't even escape in theory.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/77ddc732416b017180893cbb2356e9f0a414c575
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/a023408925acd64db5c8980373fcb3e28ec6fd29
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/dc60992ce76fbc2f71c2674f435ff6bde2108028
Impacted products
Vendor Product Version
Linux Linux Version: 6.3
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/xfs/xfs_filestream.c",
            "fs/xfs/xfs_trace.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "77ddc732416b017180893cbb2356e9f0a414c575",
              "status": "affected",
              "version": "f8f1ed1ab3babad46b25e2dbe8de43b33fe7aaa6",
              "versionType": "git"
            },
            {
              "lessThan": "a023408925acd64db5c8980373fcb3e28ec6fd29",
              "status": "affected",
              "version": "f8f1ed1ab3babad46b25e2dbe8de43b33fe7aaa6",
              "versionType": "git"
            },
            {
              "lessThan": "dc60992ce76fbc2f71c2674f435ff6bde2108028",
              "status": "affected",
              "version": "f8f1ed1ab3babad46b25e2dbe8de43b33fe7aaa6",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/xfs/xfs_filestream.c",
            "fs/xfs/xfs_trace.h"
          ],
          "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": "6.6.60",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.11.*",
              "status": "unaffected",
              "version": "6.11.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nxfs: fix finding a last resort AG in xfs_filestream_pick_ag\n\nWhen the main loop in xfs_filestream_pick_ag fails to find a suitable\nAG it tries to just pick the online AG.  But the loop for that uses\nargs-\u003epag as loop iterator while the later code expects pag to be\nset.  Fix this by reusing the max_pag case for this last resort, and\nalso add a check for impossible case of no AG just to make sure that\nthe uninitialized pag doesn\u0027t even escape in theory."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-12-19T09:35:37.777Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/77ddc732416b017180893cbb2356e9f0a414c575"
        },
        {
          "url": "https://git.kernel.org/stable/c/a023408925acd64db5c8980373fcb3e28ec6fd29"
        },
        {
          "url": "https://git.kernel.org/stable/c/dc60992ce76fbc2f71c2674f435ff6bde2108028"
        }
      ],
      "title": "xfs: fix finding a last resort AG in xfs_filestream_pick_ag",
      "x_generator": {
        "engine": "bippy-5f407fcff5a0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50216",
    "datePublished": "2024-11-09T10:14:27.875Z",
    "dateReserved": "2024-10-21T19:36:19.972Z",
    "dateUpdated": "2024-12-19T09:35:37.777Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2024-50216\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2024-11-09T11:15:06.987\",\"lastModified\":\"2024-11-12T13:56:24.513\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nxfs: fix finding a last resort AG in xfs_filestream_pick_ag\\n\\nWhen the main loop in xfs_filestream_pick_ag fails to find a suitable\\nAG it tries to just pick the online AG.  But the loop for that uses\\nargs-\u003epag as loop iterator while the later code expects pag to be\\nset.  Fix this by reusing the max_pag case for this last resort, and\\nalso add a check for impossible case of no AG just to make sure that\\nthe uninitialized pag doesn\u0027t even escape in theory.\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: xfs: se corrige la b\u00fasqueda de un AG de \u00faltimo recurso en xfs_filestream_pick_ag Cuando el bucle principal en xfs_filestream_pick_ag no puede encontrar un AG adecuado, intenta simplemente elegir el AG en l\u00ednea. Pero el bucle para eso usa args-\u0026gt;pag como iterador de bucle mientras que el c\u00f3digo posterior espera que se configure pag. Corrija esto reutilizando el caso max_pag para este \u00faltimo recurso y tambi\u00e9n agregue una verificaci\u00f3n para el caso imposible de que no haya AG solo para asegurarse de que el pag no inicializado ni siquiera escape en teor\u00eda.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/77ddc732416b017180893cbb2356e9f0a414c575\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a023408925acd64db5c8980373fcb3e28ec6fd29\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dc60992ce76fbc2f71c2674f435ff6bde2108028\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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