- Use INTERNAL_SYSCALL in TLS_INIT_TP (#1133134). - Remove gconv loadable module transliteration support (#1119128).
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Siddhesh Poyarekar
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f64bffe28e
199
glibc-rh1119128.patch
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199
glibc-rh1119128.patch
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@ -0,0 +1,199 @@
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2014-08-21 Florian Weimer <fweimer@redhat.com>
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[BZ #17187]
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* iconv/gconv_trans.c (struct known_trans, search_tree, lock,
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trans_compare, open_translit, __gconv_translit_find):
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Remove module loading code.
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diff --git a/iconv/gconv_trans.c b/iconv/gconv_trans.c
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index 1e25854..d71c029 100644
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--- a/iconv/gconv_trans.c
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+++ b/iconv/gconv_trans.c
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@@ -238,181 +238,11 @@ __gconv_transliterate (struct __gconv_step *step,
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return __GCONV_ILLEGAL_INPUT;
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}
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-
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-/* Structure to represent results of found (or not) transliteration
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- modules. */
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-struct known_trans
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-{
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- /* This structure must remain the first member. */
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- struct trans_struct info;
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-
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- char *fname;
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- void *handle;
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- int open_count;
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-};
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-
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-
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-/* Tree with results of previous calls to __gconv_translit_find. */
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-static void *search_tree;
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-
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-/* We modify global data. */
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-__libc_lock_define_initialized (static, lock);
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-
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-
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-/* Compare two transliteration entries. */
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-static int
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-trans_compare (const void *p1, const void *p2)
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-{
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- const struct known_trans *s1 = (const struct known_trans *) p1;
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- const struct known_trans *s2 = (const struct known_trans *) p2;
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-
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- return strcmp (s1->info.name, s2->info.name);
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-}
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-
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-
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-/* Open (maybe reopen) the module named in the struct. Get the function
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- and data structure pointers we need. */
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-static int
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-open_translit (struct known_trans *trans)
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-{
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- __gconv_trans_query_fct queryfct;
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-
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- trans->handle = __libc_dlopen (trans->fname);
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- if (trans->handle == NULL)
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- /* Not available. */
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- return 1;
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-
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- /* Find the required symbol. */
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- queryfct = __libc_dlsym (trans->handle, "gconv_trans_context");
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- if (queryfct == NULL)
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- {
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- /* We cannot live with that. */
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- close_and_out:
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- __libc_dlclose (trans->handle);
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- trans->handle = NULL;
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- return 1;
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- }
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-
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- /* Get the context. */
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- if (queryfct (trans->info.name, &trans->info.csnames, &trans->info.ncsnames)
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- != 0)
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- goto close_and_out;
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-
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- /* Of course we also have to have the actual function. */
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- trans->info.trans_fct = __libc_dlsym (trans->handle, "gconv_trans");
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- if (trans->info.trans_fct == NULL)
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- goto close_and_out;
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-
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- /* Now the optional functions. */
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- trans->info.trans_init_fct =
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- __libc_dlsym (trans->handle, "gconv_trans_init");
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- trans->info.trans_context_fct =
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- __libc_dlsym (trans->handle, "gconv_trans_context");
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- trans->info.trans_end_fct =
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- __libc_dlsym (trans->handle, "gconv_trans_end");
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-
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- trans->open_count = 1;
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-
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- return 0;
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-}
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-
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-
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int
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internal_function
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__gconv_translit_find (struct trans_struct *trans)
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{
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- struct known_trans **found;
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- const struct path_elem *runp;
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- int res = 1;
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-
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- /* We have to have a name. */
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- assert (trans->name != NULL);
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-
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- /* Acquire the lock. */
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- __libc_lock_lock (lock);
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-
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- /* See whether we know this module already. */
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- found = __tfind (trans, &search_tree, trans_compare);
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- if (found != NULL)
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- {
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- /* Is this module available? */
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- if ((*found)->handle != NULL)
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- {
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- /* Maybe we have to reopen the file. */
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- if ((*found)->handle != (void *) -1)
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- /* The object is not unloaded. */
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- res = 0;
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- else if (open_translit (*found) == 0)
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- {
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- /* Copy the data. */
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- *trans = (*found)->info;
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- (*found)->open_count++;
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- res = 0;
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- }
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- }
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- }
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- else
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- {
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- size_t name_len = strlen (trans->name) + 1;
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- int need_so = 0;
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- struct known_trans *newp;
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-
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- /* We have to continue looking for the module. */
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- if (__gconv_path_elem == NULL)
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- __gconv_get_path ();
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-
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- /* See whether we have to append .so. */
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- if (name_len <= 4 || memcmp (&trans->name[name_len - 4], ".so", 3) != 0)
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- need_so = 1;
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-
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- /* Create a new entry. */
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- newp = (struct known_trans *) malloc (sizeof (struct known_trans)
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- + (__gconv_max_path_elem_len
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- + name_len + 3)
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- + name_len);
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- if (newp != NULL)
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- {
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- char *cp;
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-
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- /* Clear the struct. */
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- memset (newp, '\0', sizeof (struct known_trans));
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-
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- /* Store a copy of the module name. */
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- newp->info.name = cp = (char *) (newp + 1);
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- cp = __mempcpy (cp, trans->name, name_len);
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-
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- newp->fname = cp;
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-
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- /* Search in all the directories. */
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- for (runp = __gconv_path_elem; runp->name != NULL; ++runp)
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- {
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- cp = __mempcpy (__stpcpy ((char *) newp->fname, runp->name),
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- trans->name, name_len);
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- if (need_so)
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- memcpy (cp, ".so", sizeof (".so"));
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-
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- if (open_translit (newp) == 0)
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- {
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- /* We found a module. */
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- res = 0;
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- break;
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- }
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- }
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-
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- if (res)
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- newp->fname = NULL;
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-
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- /* In any case we'll add the entry to our search tree. */
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- if (__tsearch (newp, &search_tree, trans_compare) == NULL)
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- {
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- /* Yickes, this should not happen. Unload the object. */
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- res = 1;
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- /* XXX unload here. */
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- }
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- }
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- }
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-
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- __libc_lock_unlock (lock);
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-
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- return res;
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+ /* This function always fails. Transliteration module loading is
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+ not implemented. */
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+ return 1;
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}
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--
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1.9.3
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19
glibc-rh1133134-i386-tlsinit.patch
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19
glibc-rh1133134-i386-tlsinit.patch
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@ -0,0 +1,19 @@
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diff --git a/sysdeps/i386/nptl/tls.h b/sysdeps/i386/nptl/tls.h
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index ac9c9a2..052ea64 100644
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--- a/sysdeps/i386/nptl/tls.h
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+++ b/sysdeps/i386/nptl/tls.h
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@@ -231,12 +231,8 @@ tls_fill_user_desc (union user_desc_init *desc,
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tls_fill_user_desc (&_segdescr, -1, _thrdescr); \
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\
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/* Install the TLS. */ \
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- asm volatile (TLS_LOAD_EBX \
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- "int $0x80\n\t" \
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- TLS_LOAD_EBX \
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- : "=a" (_result), "=m" (_segdescr.desc.entry_number) \
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- : "0" (__NR_set_thread_area), \
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- TLS_EBX_ARG (&_segdescr.desc), "m" (_segdescr.desc)); \
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+ INTERNAL_SYSCALL_DECL (err); \
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+ _result = INTERNAL_SYSCALL (set_thread_area, err, 1, &_segdescr.desc); \
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\
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if (_result == 0) \
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/* We know the index in the GDT, now load the segment register. \
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15
glibc.spec
15
glibc.spec
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%define glibcsrcdir glibc-2.19-883-g7e54fd0
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%define glibcsrcdir glibc-2.19-886-gdd763fd
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%define glibcversion 2.19.90
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%define glibcrelease 34%{?dist}
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%define glibcrelease 35%{?dist}
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# Pre-release tarballs are pulled in from git using a command that is
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# effectively:
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#
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@ -185,6 +185,10 @@ Patch0046: %{name}-rh1013801.patch
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Patch0047: %{name}-nscd-sysconfig.patch
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Patch0048: %{name}-rh1133134-i386-tlsinit.patch
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Patch0049: %{name}-rh1119128.patch
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##############################################################################
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#
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# Patches from upstream
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@ -555,6 +559,8 @@ package or when debugging this package.
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%patch2033 -p1
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%patch2034 -p1
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%patch2035 -p1
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%patch0048 -p1
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%patch0049 -p1
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##############################################################################
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# %%prep - Additional prep required...
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@ -1660,6 +1666,11 @@ rm -f *.filelist*
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%endif
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%changelog
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* Tue Aug 26 2014 Siddhesh Poyarekar <siddhesh@redhat.com> - 2.19.90-35
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- Sync with upstream master.
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- Use INTERNAL_SYSCALL in TLS_INIT_TP (#1133134).
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- Remove gconv loadable module transliteration support (CVE-2014-5119, #1119128).
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* Fri Aug 22 2014 Dennis Gilmore <dennis@ausil.us> - 2.19.90-34
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- add back sss to nsswitch.conf we have added workarounds in the tools
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