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CVE-2023-54185 (GCVE-0-2023-54185)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:08 – Updated: 2026-05-11 19:57
VLAI
Title
btrfs: remove BUG_ON()'s in add_new_free_space()
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.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 0f9dd46cda36b8de3b9f48bc42bd09d20b9c3b52 , < 23e72231f8281505883514b23709076e234d4f27 (git)
Affected: 0f9dd46cda36b8de3b9f48bc42bd09d20b9c3b52 , < f775ceb0cb530e4a469b718fb2a24843071087f5 (git)
Affected: 0f9dd46cda36b8de3b9f48bc42bd09d20b9c3b52 , < d8ccbd21918fd7fa6ce3226cffc22c444228e8ad (git)
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Linux Linux Affected: 2.6.29
Unaffected: 0 , < 2.6.29 (semver)
Unaffected: 6.1.45 , ≤ 6.1.* (semver)
Unaffected: 6.4.10 , ≤ 6.4.* (semver)
Unaffected: 6.5 , ≤ * (original_commit_for_fix)
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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"
          ],
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          "versions": [
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              "version": "2.6.29"
            },
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              "versionType": "semver"
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              "versionType": "semver"
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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": "2026-05-11T19:57:06.627Z",
        "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": "2026-05-11T19:57:06.627Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-09-18",
      "epss": "0.00193",
      "percentile": "0.09257"
    },
    "nvd": {
      "cve": {
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                "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",
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              {
                "defaultStatus": "affected",
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                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "2.6.29"
                  },
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                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
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                    "status": "unaffected",
                    "version": "6.1.45",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.4.*",
                    "status": "unaffected",
                    "version": "6.4.10",
                    "versionType": "semver"
                  },
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                    "version": "6.5",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          }
        ],
        "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."
          }
        ],
        "id": "CVE-2023-54185",
        "lastModified": "2026-06-17T06:46:57.780",
        "metrics": {},
        "published": "2025-12-30T13:16:06.463",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/23e72231f8281505883514b23709076e234d4f27"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "url": "https://git.kernel.org/stable/c/f775ceb0cb530e4a469b718fb2a24843071087f5"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Deferred"
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-06-30T10:29:42+00:00",
      "cve": "CVE-2023-54185",
      "id": "CVE-2023-54185",
      "initial_release_date": "2023-01-01T00:00:00+00:00",
      "product_status:known_affected": "28",
      "product_status:known_not_affected": "246",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: btrfs: remove BUG_ON()\u0027s in add_new_free_space()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-54185.json",
      "version": "3"
    }
  }
}



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