New subject: [Issue 10317] Potential null-pointer-dereference

9 Mar 2025


      https://bugs.openldap.org/show_bug.cgi?id=10317
Issue ID: 10317
           Summary: Potential null-pointer-dereference
           Product: OpenLDAP
           Version: 2.5.6
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Keywords: needs_review
          Severity: normal
          Priority: ---
         Component: slapd
          Assignee: bugs@openldap.org
          Reporter: 1367173408@qq.com
  Target Milestone: ---
Created attachment 1055
  --> https://bugs.openldap.org/attachment.cgi?id=1055&action=edit
execution trace
Hi, I have found a potential null pointer dereference bug in the project and
would like to report it to the maintainers.
At line 836 in file `servers/slapd/backglue.c`, the function `glue_tool_inst`
may return NULL.
Then, at line 765 in the same file, the pointer `on` receives the return value,
which may be NULL. But `on` is dereferenced at line 766 without checking, which
may lead to a null-pointer-dereference bug.
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[Issue 10317] New: Potential null-pointer-dereference