Unrated severityNVD Advisory· Published Dec 4, 2025· Updated Apr 15, 2026
CVE-2025-40216
CVE-2025-40216
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.
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Affected products
2Patches
Vulnerability mechanics
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