CVE-2025-21815 (GCVE-0-2025-21815)
Vulnerability from cvelistv5
Published
2025-02-27 20:04
Modified
2025-05-04 07:21
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/compaction: fix UBSAN shift-out-of-bounds warning syzkaller reported a UBSAN shift-out-of-bounds warning of (1UL << order) in isolate_freepages_block(). The bogus compound_order can be any value because it is union with flags. Add back the MAX_PAGE_ORDER check to fix the warning.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/10b7d3eb535098ccd4c82a182a33655d8a0e5c88
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4491159774d973a9e2e998d25d8fbb20fada6dfa
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d1366e74342e75555af2648a2964deb2d5c92200
Impacted products
Vendor Product Version
Linux Linux Version: 3da0272a4c7d0d37b47b28e87014f421296fc2be
Version: 3da0272a4c7d0d37b47b28e87014f421296fc2be
Version: 3da0272a4c7d0d37b47b28e87014f421296fc2be
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   Linux Linux Version: 6.7
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{
  "containers": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/compaction.c"
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              "status": "affected",
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          "vendor": "Linux",
          "versions": [
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            },
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              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
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              "version": "6.13.3",
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      ],
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                },
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                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/compaction: fix UBSAN shift-out-of-bounds warning\n\nsyzkaller reported a UBSAN shift-out-of-bounds warning of (1UL \u003c\u003c order)\nin isolate_freepages_block().  The bogus compound_order can be any value\nbecause it is union with flags.  Add back the MAX_PAGE_ORDER check to fix\nthe warning."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-04T07:21:46.285Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
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        },
        {
          "url": "https://git.kernel.org/stable/c/d1366e74342e75555af2648a2964deb2d5c92200"
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      ],
      "title": "mm/compaction: fix UBSAN shift-out-of-bounds warning",
      "x_generator": {
        "engine": "bippy-1.2.0"
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  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-21815",
    "datePublished": "2025-02-27T20:04:14.733Z",
    "dateReserved": "2024-12-29T08:45:45.774Z",
    "dateUpdated": "2025-05-04T07:21:46.285Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-21815\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-02-27T20:16:04.063\",\"lastModified\":\"2025-02-27T20:16:04.063\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/compaction: fix UBSAN shift-out-of-bounds warning\\n\\nsyzkaller reported a UBSAN shift-out-of-bounds warning of (1UL \u003c\u003c order)\\nin isolate_freepages_block().  The bogus compound_order can be any value\\nbecause it is union with flags.  Add back the MAX_PAGE_ORDER check to fix\\nthe warning.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/10b7d3eb535098ccd4c82a182a33655d8a0e5c88\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4491159774d973a9e2e998d25d8fbb20fada6dfa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d1366e74342e75555af2648a2964deb2d5c92200\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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