Vulnerability details
CVE-2025-40216
Linux Linux
io_uring/rsrc: don't rely on user vaddr alignment
CVSS 3.1
7.8High
Official description
In the Linux kernel, the following vulnerability has been resolved: io_uring/rsrc: don't rely on user vaddr alignment There is no guaranteed alignment for user pointers, however the calculation of an offset of the first page into a folio after coalescing uses some weird bit mask logic, get rid of it.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.8High | 3.1 | CVEProject cvelistV5 (CNA) (Linux) | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Linux | Linux | 6.12 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | a8edbb424b1391b077407c75d8f5d2ede77aa70d ≤ v < 50998b0ae7d9d552e96d8b7239981cf05f65eff5 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | a8edbb424b1391b077407c75d8f5d2ede77aa70d ≤ v < f16769241594be59387b56ab525e327f54377e60 | CVEProject cvelistV5 (CNA) |
| Linux | Linux | a8edbb424b1391b077407c75d8f5d2ede77aa70d ≤ v < 3a3c6d61577dbb23c09df3e21f6f9eda1ecd634b | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2025-12-04
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- Linux
Exploit prediction (EPSS)
0.15%
Probability of exploitation in 30 days
4.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- —