The important point is that this is not ordinary file writing. It never calls write() on /usr/bin/su. Instead, it appears to rely on a kernel bug/primitive involving spliced file pages and the crypto API to get controlled bytes placed into the page-cache representation of a privileged executable.
HTML格式使AI能够更好地解释复杂的技术概念，如内核漏洞利用机制，通过结构化呈现提高理解度。
Such schemas cannot easily be refactored without removing the benefits of sharing. Refactoring would require forking a local copy, which for schemas intended to be treated as an opaque validation interface with internal details that may change, eliminates the benefit of referencing a separately maintained schema in the first place.
Look at their Readme:
Well we have had a great time adding field validations, but there are validations that are tied up to the whole record we are editing than to a given field, for instance let's face this scenario:
- You are not allowed to transfer more than 1000 € to Switzerland using this form (for instance: you have to go through another form where some additional documentation is required).
- The best place to fire this validation is at record level.
- Record validation functions accept as input parameter that whole form record info, and return the result of the validation (it accepts both flavours sync and promise based), let's check the code for this validator:
...
andrewdeandrade commented on Jul 30, 2015
andrewdeandrade commented on Jul 31, 2015
locked issues that I would comment on if I could: Can't react to comment because locked. Want to thumb up.