FreeRADIUS v.3.2.8 - preprocess: ERROR: regex evaluation failed with code (-51): NULL argument passed with non-zero length

[Alan DeKok]

On Jan 23, 2026, at 3:57 AM, Ciummi <ciummi at gmail.com> wrote:
> I was using FreeRADIUS version 3.2.6 for x86_64-redhat-linux-gnu (Red Hat
> Enterprise Linux release 9.4),
> with Oracle Database 19 as the backend.
> 
> I encountered some memory issues, so I upgraded to version 3.2.8,
> ...
> Wed Jan 21 16:36:50 2026 : ERROR: (0) preprocess: ERROR: regex evaluation
> failed with code (-51): NULL argument passed with non-zero length

  The PCRE libraries use a JIT, and the local OS has disabled JIT compilation.  You can either enable that (somehow) locally, or just the v3.2.x branch from GitHub.

  We've already pushed a fix for this, which will be in 3.2.9.

  Alan DeKok.


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