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| author | Andreas Schwab <schwab@redhat.com> | 2012-06-22 11:10:31 -0700 |
|---|---|---|
| committer | Carlos O'Donell <carlos_odonell@mentor.com> | 2012-06-22 11:10:31 -0700 |
| commit | 0479b305c5b7c8e3fa8e3002982cf8cac02b842e (patch) | |
| tree | f72a6cb6c122c086d6e7b5989e9d746c0c3431a1 /include | |
| parent | 0e3933b96344ab9c0ac633c19f4ebfdede5375d4 (diff) | |
| download | glibc-0479b305c5b7c8e3fa8e3002982cf8cac02b842e.tar.gz glibc-0479b305c5b7c8e3fa8e3002982cf8cac02b842e.tar.xz glibc-0479b305c5b7c8e3fa8e3002982cf8cac02b842e.zip | |
Fix invalid memory access in do_lookup_x.
[BZ #13579] Do not free l_initfini and allow it to be reused on subsequent dl_open calls for the same library. This fixes the invalid memory access in do_lookup_x when the previously free'd l_initfini was accessed through l_searchlist when a library had been opened for the second time.
Diffstat (limited to 'include')
| -rw-r--r-- | include/link.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/link.h b/include/link.h index 2eb3179475..f0c8ad521f 100644 --- a/include/link.h +++ b/include/link.h @@ -1,6 +1,6 @@ /* Data structure for communication from the run-time dynamic linker for loaded ELF shared objects. - Copyright (C) 1995-2006, 2007, 2009, 2010, 2011 Free Software Foundation, Inc. + Copyright (C) 1995-2012 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -191,6 +191,9 @@ struct link_map during LD_TRACE_PRELINKING=1 contains any DT_SYMBOLIC libraries. */ + unsigned int l_free_initfini:1; /* Nonzero if l_initfini can be + freed, ie. not allocated with + the dummy malloc in ld.so. */ /* Collected information about own RPATH directories. */ struct r_search_path_struct l_rpath_dirs; @@ -239,9 +242,6 @@ struct link_map /* List of object in order of the init and fini calls. */ struct link_map **l_initfini; - /* The init and fini list generated at startup, saved when the - object is also loaded dynamically. */ - struct link_map **l_orig_initfini; /* List of the dependencies introduced through symbol binding. */ struct link_map_reldeps |