[PATCH 0/2] Check ld.so/libc.so consistency during startup

Florian Weimer fweimer@redhat.com
Fri Aug 19 10:16:27 GMT 2022


This avoids mysterious crashes and produces a clear error message
instead.

This helps somewhat with concurrent glibc updates on a live system
because it inhibits coredumps resulting from mismatches.  This avoids
secondary crashes from a coredump catching services that in turn crashes
during launch while the update is in progress.  A full solution to the
concurrent update problem will look very different.

Tested on i686-linux-gnu and x86_64-linux-gnu.  Built with
build-many-glibcs.py.

Thanks,
Florian

Florian Weimer (2):
  scripts/glibcelf.py: Add hashing support
  Detect ld.so and libc.so version inconsistency during startup

 INSTALL                         |  9 ++++
 Makerules                       | 14 ++++++
 NEWS                            |  7 ++-
 config.make.in                  |  1 +
 configure                       | 11 +++++
 configure.ac                    |  5 ++
 csu/libc-start.c                |  1 +
 elf/Versions                    |  4 +-
 elf/dl-call-libc-early-init.c   |  9 ++--
 elf/libc-early-init.h           |  9 +++-
 elf/tst-glibcelf.py             | 19 ++++++++
 manual/install.texi             |  9 ++++
 scripts/glibcelf.py             | 19 ++++++++
 scripts/libc_early_init_name.py | 85 +++++++++++++++++++++++++++++++++
 14 files changed, 194 insertions(+), 8 deletions(-)
 create mode 100644 scripts/libc_early_init_name.py


base-commit: f7b0fc5cc61301461e3c1a278240ce78701bb9a8
-- 
2.37.1



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