CVE-2023-54185

UNRATEDCVSS · not yet scored
—
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • No CVSS published and no exploitation signals yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS v2: —Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
—
EchelonGraph score
Not yet assessedNo source has published severity data for this CVE yet — no CVSS score from NVD or a CNA, no GitHub advisory, and it is not in CISA KEV. This is not a rating of zero; we cannot assess it yet.
EG Score
—
EG Risk
—
EPSS PROB
0%
EPSS %ILE
7%
KEV
Not listed

Published

December 30, 2025

Last Modified

April 15, 2026

References (3)

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
linuxKernel @ 6.1.45—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Data Freshness Timeline

(refreshed 8× in last 7d / 41× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 123 total refreshes for this CVE.

  1. 2026-08-01 04:14 UTCEPSS rescore
  2. 2026-07-30 16:26 UTCEPSS rescore
  3. 2026-07-30 01:29 UTCEPSS rescore
  4. 2026-07-28 15:34 UTCEPSS rescore
  5. 2026-07-28 15:34 UTCEPSS rescore
  6. 2026-07-27 03:09 UTCOSV refresh
  7. 2026-07-26 14:53 UTCEPSS rescore
  8. 2026-07-25 14:16 UTCEPSS rescore
  9. 2026-07-24 14:16 UTCEPSS rescore
  10. 2026-07-23 14:16 UTCEPSS rescore
  11. 2026-07-23 02:30 UTCEG score recompute
  12. 2026-07-22 23:16 UTCEG score recompute
  13. 2026-07-22 14:07 UTCEPSS rescore
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  15. 2026-07-21 15:23 UTCEPSS rescore
  16. 2026-07-20 17:06 UTCEPSS rescore
  17. 2026-07-19 14:30 UTCEPSS rescore
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  23. 2026-07-16 17:01 UTCEPSS rescore
  24. 2026-07-15 01:59 UTCEPSS rescore
  25. 2026-07-15 01:59 UTCEPSS rescore
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  1. 2026-07-13 22:28 UTCEPSS rescore
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  3. 2026-07-13 06:11 UTCEPSS rescore
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  6. 2026-07-11 08:26 UTCEPSS rescore
  7. 2026-07-09 21:45 UTCOSV refresh
  8. 2026-07-09 19:08 UTCEPSS rescore
  9. 2026-07-08 15:13 UTCEPSS rescore
  10. 2026-07-07 13:45 UTCEPSS rescore
  11. 2026-07-07 13:44 UTCEPSS rescore
  12. 2026-07-06 16:26 UTCEPSS rescore
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  18. 2026-06-30 23:21 UTCEPSS rescore
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  20. 2026-06-29 14:05 UTCEPSS rescore
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  23. 2026-06-28 04:55 UTCEPSS rescore
  24. 2026-06-27 03:07 UTCEPSS rescore
  25. 2026-06-25 13:48 UTCEPSS rescore
  26. 2026-06-25 13:48 UTCEPSS rescore
  27. 2026-06-24 14:04 UTCEPSS rescore
  28. 2026-06-24 14:04 UTCEPSS rescore
  29. 2026-06-23 21:31 UTCEPSS rescore
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  31. 2026-06-22 14:24 UTCEPSS rescore
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  33. 2026-06-21 14:55 UTCEPSS rescore
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  35. 2026-06-21 07:31 UTCOSV refresh
  36. 2026-06-21 01:58 UTCEPSS rescore
  37. 2026-06-21 01:58 UTCEPSS rescore
  38. 2026-06-19 19:24 UTCEPSS rescore
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  40. 2026-06-18 17:51 UTCEPSS rescore
  41. 2026-06-17 17:51 UTCEPSS rescore
  42. 2026-06-16 17:51 UTCEPSS rescore
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  44. 2026-06-15 17:47 UTCEPSS rescore
  45. 2026-06-14 23:16 UTCEPSS rescore
  46. 2026-06-13 22:59 UTCEPSS rescore
  47. 2026-06-13 22:59 UTCEPSS rescore
  48. 2026-06-12 23:11 UTCEPSS rescore
  49. 2026-06-11 13:59 UTCEPSS rescore
  50. 2026-06-10 22:17 UTCEPSS rescore
  51. 2026-06-10 13:21 UTCEPSS rescore
  52. 2026-06-08 14:16 UTCEPSS rescore
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  54. 2026-06-07 15:24 UTCEPSS rescore
  55. 2026-06-07 15:24 UTCEPSS rescore
  56. 2026-06-06 13:46 UTCEPSS rescore
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  58. 2026-06-05 22:46 UTCEPSS rescore
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  60. 2026-06-04 13:11 UTCEPSS rescore
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  62. 2026-06-02 20:12 UTCEPSS rescore
  63. 2026-06-02 20:12 UTCEPSS rescore
  64. 2026-06-01 21:11 UTCOSV refresh
  65. 2026-06-01 13:51 UTCEPSS rescore
  66. 2026-05-31 22:30 UTCEPSS rescore
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  68. 2026-05-31 00:15 UTCEPSS rescore
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  70. 2026-05-29 13:43 UTCEPSS rescore
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  73. 2026-05-27 13:40 UTCEPSS rescore
  74. 2026-05-27 13:39 UTCEPSS rescore
  75. 2026-05-26 13:43 UTCEPSS rescore

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Frequently asked(4)

What is CVE-2023-54185?
CVE-2023-54185 is a publicly disclosed vulnerability published on December 30, 2025. In the Linux kernel, the following vulnerability has been resolved: btrfs: remove BUGON()'s in addnewfreespace() At addnewfreespace() we have these BUGON()'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…
When was CVE-2023-54185 disclosed?
CVE-2023-54185 was first published in the National Vulnerability Database on December 30, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-54185 actively exploited?
CVE-2023-54185 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 93.1% of all scored CVEs.
How do I remediate CVE-2023-54185?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-54185, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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