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| author |   Florian Weimer <fweimer@redhat.com> | 2017-12-18 20:04:13 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2017-12-18 20:04:13 +0100 |
| commit | 8e1472d2c1e25e6eabc2059170731365f6d5b3d1 (patch) | |
| tree | 5b29308e6b00178a34422b6f7bb7b4f9252801dc /elf/nodelmod1.c | |
| parent | Fix nscd readlink argument aliasing (bug 22446). (diff) | |
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ld.so: Examine GLRO to detect inactive loader [BZ #20204]
GLRO (_rtld_global_ro) is read-only after initialization and can
therefore not be patched at run time, unlike the hook table addresses
and their contents, so this is a desirable hardening feature.
The hooks are only needed if ld.so has not been initialized, and this
happens only after static dlopen (dlmopen uses a single ld.so object
across all namespaces).
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'elf/nodelmod1.c')
0 files changed, 0 insertions, 0 deletions