[Bug binutils/31161] New: potential Memory in stabs.c

[shiyuyuranzh at gmail dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=31161

            Bug ID: 31161
           Summary: potential Memory in stabs.c
           Product: binutils
           Version: 2.32
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: binutils
          Assignee: unassigned at sourceware dot org
          Reporter: shiyuyuranzh at gmail dot com
  Target Milestone: ---

Hi, I found a memory leak bug in the source code of binutils, and I have shown 
the execution sequence below. This bug exists in the file stabs.c. The red text
illustrates the steps that generate the bug.

As shown in the diagram, in the function parse_stab, a block of memory is
allocated for dhandle->current_file by calling the function debug_set_filename.
After calling parse_stab, the memory of dhandle->current_file is not freed.The
memory of dhandle->current_file will leak.

Although reported bug trace is for version 2.32 but i've check this bug still
existing in latest version.

Can you help to check if this bug is true? Thanks for your effort.

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