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.The `glibc` dynamic loader is enhanced to provide a non-inheriting library preloading mechanism
With this enhancement, the loader can now be invoked to load a user program with a `--preload` option followed by a colon-separated list of libraries to preload. This feature allows users to invoke their programs directly through the loader with a non-inheriting library preload list.
Previously, users had to use the LD_PRELOAD environment variable which was inherited by all child processes through their environment.
We should backport this commit to provide a non-inheriting version of LD_PRELOAD:
commit 8692ebdb1259be60c545fa509d4852b26703777e
Author: David Newall <glibc>
Date: Mon Feb 4 13:35:11 2019 +0100
elf: Implement --preload option for the dynamic linker
The upstream commit comes with a test case.
release/2.30/master - Not required.
release/2.29/master - Not required.
release/2.28/master - Not required.
Not putting --preload change on 2.28 or 2.28 because it's an interface change. It's downstream only. We want it in RHEL to help with testing and that could use --preload instead of an env var LD_PRELOAD.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHSA-2020:1828
We should backport this commit to provide a non-inheriting version of LD_PRELOAD: commit 8692ebdb1259be60c545fa509d4852b26703777e Author: David Newall <glibc> Date: Mon Feb 4 13:35:11 2019 +0100 elf: Implement --preload option for the dynamic linker The upstream commit comes with a test case.