This is a clone of issue RHEL-144341 to use for version rhel-9.8
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Original description:
The valgrind 3.26.0 branch contains a couple of fixes, at least two of which are small, but clear, regressions on RHEL:

• readlink("/proc/self/exe") overwrites buffer beyond its return value
  https://bugs.kde.org/show_bug.cgi?id=514094
• Unclosed leak_summary/still_reachable tag in xml output
  https://bugs.kde.org/show_bug.cgi?id=514613