?SVV-F-Bug report

This is release of my investigation :)

Environment:
  Squid-2.2.STABLE4 + delay pool
  squid.conf fragment:
    acl downloads urlpath_regex -i \.gz$ \.tgz$ \.bz2$ \.zip$
    delay_access 1 allow downloads

Symptoms:
  If user uses invalid character in URL squid reloads with
  `FATAL: xstrdup: tried to duplicate NULL pointer!'.

Reason:
- clientReadRequest in src/client_side.c detect error,
  make error message page with incomplete http header and call
- clientCreateStoreEntry (src/client_side.c) call
- delayClient (src/delay_pool.c) call
- aclCheckFast (src/acl.c) call
- aclMatchAclList (-"-) call
- aclMatchAcl (-"-) call
- xstrdup.

Action:
  The simplest - don't use urlpath_regex for delay pool acls :)

2 squid developers: Answer to me about my idea, please.

svv.

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