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| author | Florian Weimer <fweimer@redhat.com> | 2021-04-21 19:49:51 +0200 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-04-21 19:49:51 +0200 |
| commit | fada9018199c21c469ff0e731ef75c6020074ac9 (patch) | |
| tree | 92a5914178f7acac985fd4ce15d4e7ee99522e9d /include | |
| parent | b2964eb1d9a6b8ab1250e8a881cf406182da5875 (diff) | |
| download | glibc-fada9018199c21c469ff0e731ef75c6020074ac9.zip glibc-fada9018199c21c469ff0e731ef75c6020074ac9.tar.gz glibc-fada9018199c21c469ff0e731ef75c6020074ac9.tar.bz2 | |
dlfcn: dlerror needs to call free from the base namespace [BZ #24773]
Calling free directly may end up freeing a pointer allocated by the
dynamic loader using malloc from libc.so in the base namespace using
the allocator from libc.so in a secondary namespace, which results in
crashes.
This commit redirects the free call through GLRO and the dynamic
linker, to reach the correct namespace. It also cleans up the dlerror
handling along the way, so that pthread_setspecific is no longer
needed (which avoids triggering bug 24774).
Diffstat (limited to 'include')
| -rw-r--r-- | include/dlfcn.h | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/include/dlfcn.h b/include/dlfcn.h index a1816e4..a8d48bd 100644 --- a/include/dlfcn.h +++ b/include/dlfcn.h @@ -156,7 +156,5 @@ extern void __libc_register_dlfcn_hook (struct link_map *map) attribute_hidden; #endif -extern void __dlerror_main_freeres (void) attribute_hidden; - #endif #endif |