Commits on Mar 4, 2022

1. Update grafana/regexp package to reject very deeply nested regexps …

   This is a cherry-pick of golang/go@ac07163
   with the following description:
   
   regexp/syntax: reject very deeply nested regexps in Parse
   
   The regexp code assumes it can recurse over the structure of
   a regexp safely. Go's growable stacks make that reasonable
   for all plausible regexps, but implausible ones can reach the
   “infinite recursion?” stack limit.
   
   This CL limits the depth of any parsed regexp to 1000.
   That is, the depth of the parse tree is required to be ≤ 1000.
   Regexps that require deeper parse trees will return ErrInternalError.

   

   bboreham committed Mar 4, 2022
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