Vulnerability 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 Score
HIGH
References
- https://git.kernel.org/stable/c/3a3c6d61577dbb23c09df3e21f6f9eda1ecd634b
- https://git.kernel.org/stable/c/50998b0ae7d9d552e96d8b7239981cf05f65eff5
- https://git.kernel.org/stable/c/f16769241594be59387b56ab525e327f54377e60
FAQ
What is CVE-2025-40216?
CVE-2025-40216 is a vulnerability with a CVSS score of 7.8 (HIGH). 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 a...
How severe is CVE-2025-40216?
CVE-2025-40216 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-40216?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.