systemtap: does not guard against DWARF operations div-by-zero errors, which can cause a kernel panic

SystemTap 1.4 and earlier, when unprivileged aka stapusr mode is enabled, allows local users to cause a denial of service divide-by-zero error and OOPS via a crafted ELF program with DWARF expressions that are not properly handled by a stap script that performs context variable access...

PT-2011-1123 · Red Hat · Systemtap +1

Name of the Vulnerable Software and Affected Versions: SystemTap versions 1.4 and earlier Description: The issue allows local users to cause a denial of service via a crafted ELF program with DWARF expressions that are not properly handled by a stap script, leading to a divide-by-zero error and...