CVE-2024-50216 (GCVE-0-2024-50216)

Vulnerability from cvelistv5 – Published: 2024-11-09 10:14 – Updated: 2025-05-04 09:48
VLAI?
Title
xfs: fix finding a last resort AG in xfs_filestream_pick_ag
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.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: f8f1ed1ab3babad46b25e2dbe8de43b33fe7aaa6 , < 77ddc732416b017180893cbb2356e9f0a414c575 (git)
Affected: f8f1ed1ab3babad46b25e2dbe8de43b33fe7aaa6 , < a023408925acd64db5c8980373fcb3e28ec6fd29 (git)
Affected: f8f1ed1ab3babad46b25e2dbe8de43b33fe7aaa6 , < dc60992ce76fbc2f71c2674f435ff6bde2108028 (git)
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    Linux Linux Affected: 6.3
Unaffected: 0 , < 6.3 (semver)
Unaffected: 6.6.60 , ≤ 6.6.* (semver)
Unaffected: 6.11.7 , ≤ 6.11.* (semver)
Unaffected: 6.12 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/xfs/xfs_filestream.c",
            "fs/xfs/xfs_trace.h"
          ],
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          "vendor": "Linux",
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              "versionType": "git"
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              "versionType": "git"
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          "programFiles": [
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          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
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              "versionType": "semver"
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              "status": "unaffected",
              "version": "6.12",
              "versionType": "original_commit_for_fix"
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                  "versionStartIncluding": "6.3",
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                  "vulnerable": true
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                  "versionEndExcluding": "6.12",
                  "versionStartIncluding": "6.3",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "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": "2025-05-04T09:48:59.033Z",
        "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-1.2.0"
      }
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  "cveMetadata": {
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    "assignerShortName": "Linux",
    "cveId": "CVE-2024-50216",
    "datePublished": "2024-11-09T10:14:27.875Z",
    "dateReserved": "2024-10-21T19:36:19.972Z",
    "dateUpdated": "2025-05-04T09:48:59.033Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}


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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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