- —Not scoredno CVSS score yet
- 0.22%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: iommufd: Don't overflow during division for dirty tracking If pgshift is 63 then BITS_PER_TYPE(*bitmap->bitmap) * pgsize will overflow to 0 and this triggers divide by 0. In this case the index should just be 0, so reorganize things to divide by shift and avoid hitting any overflows.
Timeline
ID reserved
By Linux
- 8 months later
· 8 months later
Published
- 5 months later
· 5 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)
- 0.22% · top 88% of all CVEs (11 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – < 07105e61882ff4a7d58db63cc5f9e90c6c60506c
- affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – < 4c8a4f1d34eced168cc0b3a3dfe7b6dcc2090f69
- affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – < de7f2c67ceb1941b05b04ac35458a03e93cc57b1
- affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – < dbf316fc90aa954dcd5440817f4b944627ed63e0
- affected 58ccf0190d19d9a8a41f8a02b9e06742b58df4a1 – < cb30dfa75d55eced379a42fd67bd5fb7ec38555e
- affected 6.1
- unaffected < 6.1
- unaffected 6.1.159 – ≤ 6.1.*
- unaffected 6.6.117 – ≤ 6.6.*
- unaffected 6.12.58 – ≤ 6.12.*
- unaffected 6.17.8 – ≤ 6.17.*
- unaffected 6.18 – ≤ *
References
References5
- https://git.kernel.org/stable/c/07105e61882ff4a7d58db63cc5f9e90c6c60506c (opens in a new tab)
- https://git.kernel.org/stable/c/4c8a4f1d34eced168cc0b3a3dfe7b6dcc2090f69 (opens in a new tab)
- https://git.kernel.org/stable/c/de7f2c67ceb1941b05b04ac35458a03e93cc57b1 (opens in a new tab)
- https://git.kernel.org/stable/c/dbf316fc90aa954dcd5440817f4b944627ed63e0 (opens in a new tab)
- https://git.kernel.org/stable/c/cb30dfa75d55eced379a42fd67bd5fb7ec38555e (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-2025-201651 (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-2025-40293)Record last updated .