CVE-2025-38660[ceph] parse_longname(): strrchr() expects NUL-terminated string
- 9.8CriticalCVSS base score
- 0.43%Exploitation in 30 daysEPSS · top 62% 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: [ceph] parse_longname(): strrchr() expects NUL-terminated string ... and parse_longname() is not guaranteed that. That's the reason why it uses kmemdup_nul() to build the argument for kstrtou64(); the problem is, kstrtou64() is not the only thing that need it. Just get a NUL-terminated copy of the entire thing and be done with that...
Timeline
ID reserved
By Linux
- 4 months later
· 4 months later
Published
- 14 months later
· 14 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 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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)
- 0.43% · top 62% of all CVEs (13 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
- affected dd66df0053ef84add5e684df517aa9b498342381 – < 4b9aee707c4580511983a0998547f3b28514e6a6
- affected dd66df0053ef84add5e684df517aa9b498342381 – < bb80f7618832d26f7e395f52f82b1dac76223e5f
- affected dd66df0053ef84add5e684df517aa9b498342381 – < 3145b2b11492d61c512bbc59660bb823bc757f48
- affected dd66df0053ef84add5e684df517aa9b498342381 – < 493479af8af3ab907f49e99323777d498a4fbd2b
- affected dd66df0053ef84add5e684df517aa9b498342381 – < 101841c38346f4ca41dc1802c867da990ffb32eb
- affected 6.6
- unaffected < 6.6
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.42 – ≤ 6.12.*
- unaffected 6.15.10 – ≤ 6.15.*
- unaffected 6.16.1 – ≤ 6.16.*
- unaffected 6.17 – ≤ *
References
References5
- https://git.kernel.org/stable/c/4b9aee707c4580511983a0998547f3b28514e6a6 (opens in a new tab)
- https://git.kernel.org/stable/c/bb80f7618832d26f7e395f52f82b1dac76223e5f (opens in a new tab)
- https://git.kernel.org/stable/c/3145b2b11492d61c512bbc59660bb823bc757f48 (opens in a new tab)
- https://git.kernel.org/stable/c/493479af8af3ab907f49e99323777d498a4fbd2b (opens in a new tab)
- https://git.kernel.org/stable/c/101841c38346f4ca41dc1802c867da990ffb32eb (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-2025-25542 (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-2025-38660)Record last updated .