Symantec Access Management

Tech Tip : CA Single Sign-On : Serious regression smwa-12.52-sp01-cr08-linux-x86-64

  • 1.  Tech Tip : CA Single Sign-On : Serious regression smwa-12.52-sp01-cr08-linux-x86-64

    Broadcom Employee
    Posted 04-27-2018 03:11 AM

    Issue:


    Running Web Agent, this one crashes with the following stack :

    [12/fevr./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 when it will be available.

     

     

    KB : KB000092947