CVE-2023-54185 (GCVE-0-2023-54185)
Vulnerability from cvelistv5
Published
2025-12-30 12:08
Modified
2025-12-30 12:08
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: btrfs: remove BUG_ON()'s in add_new_free_space() At add_new_free_space() we have these BUG_ON()'s that are there to deal with any failure to add free space to the in memory free space cache. Such failures are mostly -ENOMEM that should be very rare. However there's no need to have these BUG_ON()'s, we can just return any error to the caller and all callers and their upper call chain are already dealing with errors. So just make add_new_free_space() return any errors, while removing the BUG_ON()'s, and returning the total amount of added free space to an optional u64 pointer argument.
References
Impacted products
Vendor Product Version
Linux Linux Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
Version: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/block-group.c",
            "fs/btrfs/block-group.h",
            "fs/btrfs/free-space-tree.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "23e72231f8281505883514b23709076e234d4f27",
              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
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              "status": "affected",
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              "versionType": "git"
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              "versionType": "git"
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          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "fs/btrfs/block-group.c",
            "fs/btrfs/block-group.h",
            "fs/btrfs/free-space-tree.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.45",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.4.*",
              "status": "unaffected",
              "version": "6.4.10",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.5",
              "versionType": "original_commit_for_fix"
            }
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        }
      ],
      "cpeApplicability": [
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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\nbtrfs: remove BUG_ON()\u0027s in add_new_free_space()\n\nAt add_new_free_space() we have these BUG_ON()\u0027s that are there to deal\nwith any failure to add free space to the in memory free space cache.\nSuch failures are mostly -ENOMEM that should be very rare. However there\u0027s\nno need to have these BUG_ON()\u0027s, we can just return any error to the\ncaller and all callers and their upper call chain are already dealing with\nerrors.\n\nSo just make add_new_free_space() return any errors, while removing the\nBUG_ON()\u0027s, and returning the total amount of added free space to an\noptional u64 pointer argument."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-30T12:08:55.218Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/23e72231f8281505883514b23709076e234d4f27"
        },
        {
          "url": "https://git.kernel.org/stable/c/f775ceb0cb530e4a469b718fb2a24843071087f5"
        },
        {
          "url": "https://git.kernel.org/stable/c/d8ccbd21918fd7fa6ce3226cffc22c444228e8ad"
        }
      ],
      "title": "btrfs: remove BUG_ON()\u0027s in add_new_free_space()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-54185",
    "datePublished": "2025-12-30T12:08:55.218Z",
    "dateReserved": "2025-12-30T12:06:44.497Z",
    "dateUpdated": "2025-12-30T12:08:55.218Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-54185\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-30T13:16:06.463\",\"lastModified\":\"2025-12-30T13:16:06.463\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nbtrfs: remove BUG_ON()\u0027s in add_new_free_space()\\n\\nAt add_new_free_space() we have these BUG_ON()\u0027s that are there to deal\\nwith any failure to add free space to the in memory free space cache.\\nSuch failures are mostly -ENOMEM that should be very rare. However there\u0027s\\nno need to have these BUG_ON()\u0027s, we can just return any error to the\\ncaller and all callers and their upper call chain are already dealing with\\nerrors.\\n\\nSo just make add_new_free_space() return any errors, while removing the\\nBUG_ON()\u0027s, and returning the total amount of added free space to an\\noptional u64 pointer argument.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/23e72231f8281505883514b23709076e234d4f27\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/d8ccbd21918fd7fa6ce3226cffc22c444228e8ad\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f775ceb0cb530e4a469b718fb2a24843071087f5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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