Nameless, valueless cookie causes Apache segmentation faults when logging cookies

Issue

• Apache is seg faulting. Core's captured indicate threads handling logging of nameless, valueless cookies:

  0  apr_collapse_spaces (dest=0x0, src=0x0) at strings/apr_cpystrn.c:220
  1  0x00002ab75e0df7a4 in log_cookie (r=0xcb0540, a=0x5a9288 "JSESSIONID") at mod_log_config.c:528
  2  0x00002ab75e0def19 in process_item (r=0xcb0540, cls=0x59c6a0, default_format=<value optimized out>) at mod_log_config.c:943
  3  config_log_transaction (r=0xcb0540, cls=0x59c6a0, default_format=<value optimized out>) at mod_log_config.c:1006
  4  0x00002ab75e0defe7 in multi_log_transaction (r=0x0) at mod_log_config.c:1037
  5  0x00000000004291ea in ap_run_log_transaction (r=0xcb0540) at protocol.c:1696
  6  0x00000000004438c7 in ap_process_request (r=0xcb0540) at http_request.c:308
  7  0x0000000000440c0c in ap_process_http_connection (c=0xca8728) at http_core.c:190
  8  0x000000000043d192 in ap_run_process_connection (c=0xca8728) at connection.c:43
  9  0x00000000004487a6 in process_socket (thd=0x6757b0, dummy=<value optimized out>) at worker.c:544
  10 worker_thread (thd=0x6757b0, dummy=<value optimized out>) at worker.c:894
  11 0x00002ab75c8222a3 in start_thread () from /lib64/libpthread.so.0
  12 0x00002ab75cafb49d in clone () from /lib64/libc.so.6