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btrfs: remove BUG_ON()'s in add_new_free_space()

Type: advisorySources: OSV

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.

Products
Kernel
Affected versions
Not specified
Fixed versions
6.1.45, 6.4.10
CVEs
CVE-2023-54185
Confirmed fixed CVEs
Not specified
Updated in this feed
5 Nov 2026, 16:41 UTC · Revision 1

Source evidence

btrfs: remove BUG_ON()'s in add_new_free_space()

core-osv · Original source

Published 30 Dec 2025, 12:08 UTC

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.

osv:CVE-2023-54185

Kernel

Fixed versions: 6.1.45, 6.4.10

Complete source record
{
  "id": "dc360b03c4abfe327e27fda8fdde3010963c9a424194ceac3be226786f56c041",
  "url": "https://osv.dev/vulnerability/CVE-2023-54185",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "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.",
    "evidence": "osv:CVE-2023-54185",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.1.45",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.4.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2023-54185",
      "aliases": [
        "CVE-2023-54185"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0f9dd46cda36b8de3b9f48bc42bd09d20b9c3b52"
                },
                {
                  "fixed": "23e72231f8281505883514b23709076e234d4f27"
                },
                {
                  "fixed": "f775ceb0cb530e4a469b718fb2a24843071087f5"
                },
                {
                  "fixed": "d8ccbd21918fd7fa6ce3226cffc22c444228e8ad"
                }
              ]
            }
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54185.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "2.6.29"
                },
                {
                  "fixed": "6.1.45"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.2.0"
                },
                {
                  "fixed": "6.4.10"
                }
              ]
            }
          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-54185.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:44.353727944Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/23e72231f8281505883514b23709076e234d4f27",
        "https://git.kernel.org/stable/c/d8ccbd21918fd7fa6ce3226cffc22c444228e8ad",
        "https://git.kernel.org/stable/c/f775ceb0cb530e4a469b718fb2a24843071087f5",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54185.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2023-54185",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/54xxx/CVE-2023-54185.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2023-54185",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 512433,
  "published_at": "2025-12-30T12:08:55.218+00:00"
}