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Florian Weimer 7b543dcdf9 elf: Ignore LD_PROFILE if LD_PROFILE_OUTPUT is not set (bug 33797)
The previous default for LD_PROFILE_OUTPUT, /var/tmp, is insecure
because it's typically a 1777 directory, and other systems could
place malicious files there which interfere with execution.

Requiring the user to specify a profiling directory mitigates
the impact of bug 33797.  Clear LD_PROFILE_OUTPUT alongside
with LD_PROFILE.

Rework the test not to use predictable file names.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
2026-01-19 08:36:56 +01:00
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