CVE-2025-71268btrfs: fix reservation leak in some error paths when inserting inline extent
- 7.5HighCVSS base score
- 0.35%Exploitation in 30 daysEPSS · top 71% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: btrfs: fix reservation leak in some error paths when inserting inline extent If we fail to allocate a path or join a transaction, we return from __cow_file_range_inline() without freeing the reserved qgroup data, resulting in a leak. Fix this by ensuring we call btrfs_qgroup_free_data() in such cases.
Timeline
ID reserved
By Linux
- 1 day later
· 1 day later
Published
- 7 months later
· 7 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| LinuxCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Modified | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.35% · top 71% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Affected products
- affected 94ed938aba557aa798acf496f09afb289b619fcd – < f7156512c8166d385f574b9ec030479aa7b1e8c9
- affected 94ed938aba557aa798acf496f09afb289b619fcd – < 28b97fcbbf523779688e8de5fe55bf2dae3859f6
- affected 94ed938aba557aa798acf496f09afb289b619fcd – < f3ee1732851aec6fe6b2cec2ef1b32d4e71d9913
- affected 94ed938aba557aa798acf496f09afb289b619fcd – < 28768bd3abf9995a93f6e01bfce01c60622964dd
- affected 94ed938aba557aa798acf496f09afb289b619fcd – < c1c050f92d8f6aac4e17f7f2230160794fceef0c
- affected 4.4
- unaffected < 4.4
- unaffected 6.1.163 – ≤ 6.1.*
- unaffected 6.6.124 – ≤ 6.6.*
- unaffected 6.12.70 – ≤ 6.12.*
- unaffected 6.18.10 – ≤ 6.18.*
- unaffected 6.19 – ≤ *
References
References5
- https://git.kernel.org/stable/c/f7156512c8166d385f574b9ec030479aa7b1e8c9 (opens in a new tab)
- https://git.kernel.org/stable/c/28b97fcbbf523779688e8de5fe55bf2dae3859f6 (opens in a new tab)
- https://git.kernel.org/stable/c/f3ee1732851aec6fe6b2cec2ef1b32d4e71d9913 (opens in a new tab)
- https://git.kernel.org/stable/c/28768bd3abf9995a93f6e01bfce01c60622964dd (opens in a new tab)
- https://git.kernel.org/stable/c/c1c050f92d8f6aac4e17f7f2230160794fceef0c (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2025-208840 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2025-71268)Record last updated .