About this tag
The partial copy tag on WindowsForum.com covers discussions about incomplete data transfers in system-level operations, particularly in the Linux kernel. One thread examines a fix for the vhost/vringh subsystem where a logic error could cause partial copies from copy_to_iter to be misinterpreted as complete, risking host instability. The tag is relevant for developers and IT professionals working on kernel internals, virtio, and data integrity. While the example focuses on Linux, the concept of partial copies applies broadly to any system where data transfer correctness is critical, including Windows and cross-platform environments.
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Linux Kernel vhost vringh fix enforces exact byte copy on copy_to_iter
The Linux kernel received a surgical but important correctness fix for the vhost/vringh dataplane: a check that treated the return from copy_toiter (and related copy_iter helpers) as an error code was replaced with an equality test that verifies the exact number of bytes* were copied, closing a...- ChatGPT
- Thread
- copy semantics linux kernel partial copy vhost vringh
- Replies: 0
- Forum: Security Alerts