Serious regression smwa-12.52-sp01-cr08-linux-x86-64

Document ID : KB000092947
Last Modified Date : 01/08/2018
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Issue:
 Running Web Agent, this one crashes with the following stack : 

[12/févr./2018:15:41:21] [Info] [CA WebAgent IPC] [26882] 
[CSmSharedSegment::smalloc] Attached to shared memory segment 
15761417 using key 0x6947862b 

*** Error in `/usr/local/apache2/bin/httpd': double free or corruption (fasttop): 0x00007ff45800f9b0 *** 
======= Backtrace: ========= 
/lib64/libc.so.6(+0x7c619)[0x7ff49ce75619] 
/lib64/libstdc++.so.6(_ZNSsD1Ev+0x43)[0x7ff49a408e43] 
/opt/CA/webagent/bin/libmod_sm24.so(+0x1bcc9)[0x7ff49c6d6cc9] 
/opt/CA/webagent/bin/libmod_sm24.so(+0x1b453)[0x7ff49c6d6453] 
/opt/CA/webagent/bin/libmod_sm24.so(+0x1ae61)[0x7ff49c6d5e61] 
/opt/CA/webagent/bin/libmod_sm24.so(+0x16a0e)[0x7ff49c6d1a0e] 
/usr/local/apache2/bin/httpd(ap_run_access_checker+0x61)[0x44f7c7] 
/usr/local/apache2/bin/httpd(ap_process_request_internal+0x579)[0x4509b3] 
/usr/local/apache2/bin/httpd(ap_process_async_request+0x6f7)[0x47b518] 
/usr/local/apache2/bin/httpd(ap_process_request+0x24)[0x47b5eb] 
/usr/local/apache2/bin/httpd[0x476fc2] 
/usr/local/apache2/bin/httpd[0x4770ce] 
/usr/local/apache2/bin/httpd(ap_run_process_connection+0x61)[0x46b67e] 
/usr/local/apache2/bin/httpd(ap_process_connection+0x66)[0x46bd18] 
/usr/local/apache2/bin/httpd[0x4854da] 
/usr/local/apache2/bin/httpd[0x4862f2] 
/lib64/libpthread.so.0(+0x7e25)[0x7ff49d3c7e25] 
/lib64/libc.so.6(clone+0x6d)[0x7ff49cef134d] 
======= Memory map: ======== 

[Mon Feb 12 15:41:22.259579 2018] [core:notice] [pid 26864:tid 
140008323442816] AH00052: child pid 26882 exit signal Aborted (6) 
Environment:
Web Agent 12.52SP1CR08 64bit on Apache 2.4.29 64bit on RedHat 6;
Cause:
The code was allowing a null pointer exception where the code is trying to clear a list which was empty. The fix will be available to Web Agent 12.52SP1CR09
Resolution:
Upgrade the Web Agent to 12.52SP1CR09.

You'll find the CR09 for download here :

  Solution Document: SS04289
  https://support.ca.com/us/download-center/solution-detail.html?docid=655788&os=WINDOWS&aparno=SS04289&actionID=5

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