NULL pointer deference

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https://github.com/FreeRADIUS/pam_radius/blob/master/src/pam_radius_auth.c#L515
_pam_drop(server); followed by access to server causes NULL pointer deference as _pam_drop will set the pointer to null: #define _pam_drop(X) if (X) {free(X);X = NULL;}

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Thank you! 👍