CVE-2025-40216
- Source
- https://cve.org/CVERecord?id=CVE-2025-40216
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-40216.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2025-40216
- Downstream
- Published
- 2025-12-04T14:14:14.690Z
- Modified
- 2026-04-02T12:48:19.665713Z
- Summary
- io_uring/rsrc: don't rely on user vaddr alignment
- Details
-
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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40216.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/3a3c6d61577dbb23c09df3e21f6f9eda1ecd634b
- https://git.kernel.org/stable/c/50998b0ae7d9d552e96d8b7239981cf05f65eff5
- https://git.kernel.org/stable/c/f16769241594be59387b56ab525e327f54377e60
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/40xxx/CVE-2025-40216.json
- https://nvd.nist.gov/vuln/detail/CVE-2025-40216
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git