Vulnerability record · CVE-2025-40216 · published 4 December 2025
CVE-2025-40216: In the Linux kernel, the following vulnerability has been resolved: io_uring/rsrc: don't rely on user vaddr a…
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.
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:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
References
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Source: NIST National Vulnerability Database (record CVE-2025-40216), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.
