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charset=UTF-8 Content-Transfer-Encoding: 7bit On 11/29/24 9:49 PM, Kees Cook wrote: > Using strscpy() meant that the final character in task->comm may be > non-NUL for a moment before the "string too long" truncation happens. > > Instead of adding a new use of the ambiguous strncpy(), we'd want to > use memtostr_pad() which enforces being able to check at compile time > that sizes are sensible, but this requires being able to see string > buffer lengths. Instead of trying to inline __set_task_comm() (which > needs to call trace and perf functions), just open-code it. But to > make sure we're always safe, add compile-time checking like we already > do for get_task_comm(). In terms of the io_uring changes, both of those looks fine to me. Feel free to bundle it with something else. If you're still changing things, then I do prefer = { }; rather than no space... -- Jens Axboe