CVE-2025-40216 - io_uring/rsrc: don't rely on user vaddr alignment

CVE-2025-40216 - io_uring/rsrc: don't rely on user vaddr alignment

https://cvefeed.io/rssfeed/latest.atom / Thu, 12/04/2025 - 16:51
CVE ID : CVE-2025-40216
Published : Dec. 4, 2025, 2:14 p.m. | 57 minutes ago
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.
Severity: 0.0 | NA
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