CVE-2025-40056vhost: vringh: Fix copy_to_iter return value check
- —Not scoredno CVSS score yet
- 0.21%Exploitation in 30 daysEPSS · top 88% 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: vhost: vringh: Fix copy_to_iter return value check The return value of copy_to_iter can't be negative, check whether the copied length is equal to the requested length instead of checking for negative values.
Timeline
ID reserved
By Linux
- 7 months later
· 7 months 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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.21% · top 88% of all CVEs (13 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 309bba39c945ac8ab8083ac05cd6cfe5822968e0 – < bd71e7e0a612740e4de5524880c7cd40293af5f7
- affected 309bba39c945ac8ab8083ac05cd6cfe5822968e0 – < 781226e11d5bdea0d69c7b5aa3cda874093c73b8
- affected 309bba39c945ac8ab8083ac05cd6cfe5822968e0 – < b3a950d236e98440c07405ba597b11bce56a8050
- affected 309bba39c945ac8ab8083ac05cd6cfe5822968e0 – < 68aac2b335d474b938d154b9c95cbc58838cb2ce
- affected 309bba39c945ac8ab8083ac05cd6cfe5822968e0 – < 439263376c2c4e126cac0d07e4987568de4eaba5
- affected 6.0
- unaffected < 6.0
- unaffected 6.1.156 – ≤ 6.1.*
- unaffected 6.6.112 – ≤ 6.6.*
- unaffected 6.12.53 – ≤ 6.12.*
- unaffected 6.17.3 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References5
- https://git.kernel.org/stable/c/bd71e7e0a612740e4de5524880c7cd40293af5f7 (opens in a new tab)
- https://git.kernel.org/stable/c/781226e11d5bdea0d69c7b5aa3cda874093c73b8 (opens in a new tab)
- https://git.kernel.org/stable/c/b3a950d236e98440c07405ba597b11bce56a8050 (opens in a new tab)
- https://git.kernel.org/stable/c/68aac2b335d474b938d154b9c95cbc58838cb2ce (opens in a new tab)
- https://git.kernel.org/stable/c/439263376c2c4e126cac0d07e4987568de4eaba5 (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-2025-36472 (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-2025-40056)Record last updated .