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CVE-2025-40216

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CVE-2025-40216

Published: Dec 4, 2025

Modified: May 11, 2026

PUBLISHED

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.

VendorProductVersions

Linux

Linux

affected
a8edbb424b1391b077407c75d8f5d2ede77aa70d - < 50998b0ae7d9d552e96d8b7239981cf05f65eff5
affected
a8edbb424b1391b077407c75d8f5d2ede77aa70d - < f16769241594be59387b56ab525e327f54377e60
affected
a8edbb424b1391b077407c75d8f5d2ede77aa70d - < 3a3c6d61577dbb23c09df3e21f6f9eda1ecd634b

Linux

Linux

affected
6.12
unaffected
0 - < 6.12
unaffected
6.12.36 - <= 6.12.*
unaffected
6.15.5 - <= 6.15.*
unaffected
6.16 - <= *

References

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