Time-of-check to time-of-use: Difference between revisions

Revision as of 03:26, 6 September 2022

Revision as of 08:18, 29 September 2022

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| isbn=978-0-596-10046-9}}</ref>

In the context of file system TOCTOU race conditions, the fundamental challenge is ensuring that the file system cannot be changed between two system calls. In 2004, an impossibility result was published, showing that there was no portable, deterministic technique for avoiding TOCTOU race conditions when using the UNIX <code>access</code> and <code>open</code> filesystem calls.<ref>{{cite journal

| last1=Dean

| first1=Drew